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LCOV - code coverage report
Current view: top level - ext/opcache - ZendAccelerator.c (source / functions) Hit Total Coverage
Test: PHP Code Coverage Lines: 617 1195 51.6 %
Date: 2014-11-22 Functions: 38 60 63.3 %
Legend: Lines: hit not hit

          Line data    Source code
       1             : /*
       2             :    +----------------------------------------------------------------------+
       3             :    | Zend OPcache                                                         |
       4             :    +----------------------------------------------------------------------+
       5             :    | Copyright (c) 1998-2014 The PHP Group                                |
       6             :    +----------------------------------------------------------------------+
       7             :    | This source file is subject to version 3.01 of the PHP license,      |
       8             :    | that is bundled with this package in the file LICENSE, and is        |
       9             :    | available through the world-wide-web at the following url:           |
      10             :    | http://www.php.net/license/3_01.txt                                  |
      11             :    | If you did not receive a copy of the PHP license and are unable to   |
      12             :    | obtain it through the world-wide-web, please send a note to          |
      13             :    | license@php.net so we can mail you a copy immediately.               |
      14             :    +----------------------------------------------------------------------+
      15             :    | Authors: Andi Gutmans <andi@zend.com>                                |
      16             :    |          Zeev Suraski <zeev@zend.com>                                |
      17             :    |          Stanislav Malyshev <stas@zend.com>                          |
      18             :    |          Dmitry Stogov <dmitry@zend.com>                             |
      19             :    +----------------------------------------------------------------------+
      20             : */
      21             : 
      22             : #include "main/php.h"
      23             : #include "main/php_globals.h"
      24             : #include "zend.h"
      25             : #include "zend_extensions.h"
      26             : #include "zend_compile.h"
      27             : #include "ZendAccelerator.h"
      28             : #include "zend_persist.h"
      29             : #include "zend_shared_alloc.h"
      30             : #include "zend_accelerator_module.h"
      31             : #include "zend_accelerator_blacklist.h"
      32             : #include "zend_list.h"
      33             : #include "zend_execute.h"
      34             : #include "main/SAPI.h"
      35             : #include "main/php_streams.h"
      36             : #include "main/php_open_temporary_file.h"
      37             : #include "zend_API.h"
      38             : #include "zend_ini.h"
      39             : #include "zend_virtual_cwd.h"
      40             : #include "zend_accelerator_util_funcs.h"
      41             : #include "zend_accelerator_hash.h"
      42             : 
      43             : #ifndef ZEND_WIN32
      44             : #include  <netdb.h>
      45             : #endif
      46             : 
      47             : #ifdef ZEND_WIN32
      48             : typedef int uid_t;
      49             : typedef int gid_t;
      50             : #include <io.h>
      51             : #endif
      52             : 
      53             : #ifndef ZEND_WIN32
      54             : # include <sys/time.h>
      55             : #else
      56             : # include <process.h>
      57             : #endif
      58             : 
      59             : #ifdef HAVE_UNISTD_H
      60             : # include <unistd.h>
      61             : #endif
      62             : #include <fcntl.h>
      63             : #include <signal.h>
      64             : #include <time.h>
      65             : 
      66             : #ifndef ZEND_WIN32
      67             : # include <sys/types.h>
      68             : # include <sys/ipc.h>
      69             : #endif
      70             : 
      71             : #include <sys/stat.h>
      72             : #include <errno.h>
      73             : 
      74             : #define SHM_PROTECT() \
      75             :         do { \
      76             :                 if (ZCG(accel_directives).protect_memory) { \
      77             :                         zend_accel_shared_protect(1 TSRMLS_CC); \
      78             :                 } \
      79             :         } while (0)
      80             : #define SHM_UNPROTECT() \
      81             :         do { \
      82             :                 if (ZCG(accel_directives).protect_memory) { \
      83             :                         zend_accel_shared_protect(0 TSRMLS_CC); \
      84             :                 } \
      85             :         } while (0)
      86             : 
      87             : ZEND_EXTENSION();
      88             : 
      89             : #ifndef ZTS
      90             : zend_accel_globals accel_globals;
      91             : #else
      92             : int accel_globals_id;
      93             : #endif
      94             : 
      95             : /* Points to the structure shared across all PHP processes */
      96             : zend_accel_shared_globals *accel_shared_globals = NULL;
      97             : 
      98             : /* true globals, no need for thread safety */
      99             : zend_bool accel_startup_ok = 0;
     100             : static char *zps_failure_reason = NULL;
     101             : char *zps_api_failure_reason = NULL;
     102             : 
     103             : static zend_op_array *(*accelerator_orig_compile_file)(zend_file_handle *file_handle, int type TSRMLS_DC);
     104             : static int (*accelerator_orig_zend_stream_open_function)(const char *filename, zend_file_handle *handle  TSRMLS_DC);
     105             : static char *(*accelerator_orig_zend_resolve_path)(const char *filename, int filename_len TSRMLS_DC);
     106             : static void (*orig_chdir)(INTERNAL_FUNCTION_PARAMETERS) = NULL;
     107             : static ZEND_INI_MH((*orig_include_path_on_modify)) = NULL;
     108             : 
     109             : #ifdef ZEND_WIN32
     110             : # define INCREMENT(v) InterlockedIncrement64(&ZCSG(v))
     111             : # define DECREMENT(v) InterlockedDecrement64(&ZCSG(v))
     112             : # define LOCKVAL(v)   (ZCSG(v))
     113             : #endif
     114             : 
     115             : #ifdef ZEND_WIN32
     116             : static time_t zend_accel_get_time(void)
     117             : {
     118             :         FILETIME now;
     119             :         GetSystemTimeAsFileTime(&now);
     120             : 
     121             :         return (time_t) ((((((__int64)now.dwHighDateTime) << 32)|now.dwLowDateTime) - 116444736000000000L)/10000000);
     122             : }
     123             : #else
     124             : # define zend_accel_get_time() time(NULL)
     125             : #endif
     126             : 
     127         909 : static inline int is_stream_path(const char *filename)
     128             : {
     129             :         const char *p;
     130             : 
     131         909 :         for (p = filename; isalnum((int)*p) || *p == '+' || *p == '-' || *p == '.'; p++);
     132         909 :         return ((*p == ':') && (p - filename > 1) && (p[1] == '/') && (p[2] == '/'));
     133             : }
     134             : 
     135          28 : static inline int is_cacheable_stream_path(const char *filename)
     136             : {
     137          56 :         return memcmp(filename, "file://", sizeof("file://") - 1) == 0 ||
     138          28 :                memcmp(filename, "phar://", sizeof("phar://") - 1) == 0;
     139             : }
     140             : 
     141             : /* O+ overrides PHP chdir() function and remembers the current working directory
     142             :  * in ZCG(cwd) and ZCG(cwd_len). Later accel_getcwd() can use stored value and
     143             :  * avoid getcwd() call.
     144             :  */
     145           0 : static ZEND_FUNCTION(accel_chdir)
     146             : {
     147             :         char cwd[MAXPATHLEN];
     148             : 
     149           0 :         orig_chdir(INTERNAL_FUNCTION_PARAM_PASSTHRU);
     150           0 :         if (VCWD_GETCWD(cwd, MAXPATHLEN)) {
     151           0 :                 if (ZCG(cwd)) {
     152           0 :                         efree(ZCG(cwd));
     153             :                 }
     154           0 :                 ZCG(cwd_len) = strlen(cwd);
     155           0 :                 ZCG(cwd) = estrndup(cwd, ZCG(cwd_len));
     156             :         } else {
     157           0 :                 if (ZCG(cwd)) {
     158           0 :                         efree(ZCG(cwd));
     159           0 :                         ZCG(cwd) = NULL;
     160             :                 }
     161             :         }
     162           0 : }
     163             : 
     164          29 : static inline char* accel_getcwd(int *cwd_len TSRMLS_DC)
     165             : {
     166          29 :         if (ZCG(cwd)) {
     167           4 :                 *cwd_len = ZCG(cwd_len);
     168           4 :                 return ZCG(cwd);
     169             :         } else {
     170             :                 char cwd[MAXPATHLEN + 1];
     171             : 
     172          25 :                 if (!VCWD_GETCWD(cwd, MAXPATHLEN)) {
     173           0 :                         return NULL;
     174             :                 }
     175          25 :                 *cwd_len = ZCG(cwd_len) = strlen(cwd);
     176          25 :                 ZCG(cwd) = estrndup(cwd, ZCG(cwd_len));
     177          25 :                 return ZCG(cwd);
     178             :         }
     179             : }
     180             : 
     181           0 : void zend_accel_schedule_restart_if_necessary(zend_accel_restart_reason reason TSRMLS_DC)
     182             : {
     183           0 :         if ((((double) ZSMMG(wasted_shared_memory)) / ZCG(accel_directives).memory_consumption) >= ZCG(accel_directives).max_wasted_percentage) {
     184           0 :                 zend_accel_schedule_restart(reason TSRMLS_CC);
     185             :         }
     186           0 : }
     187             : 
     188             : /* O+ tracks changes of "include_path" directive. It stores all the requested
     189             :  * values in ZCG(include_paths) shared hash table, current value in
     190             :  * ZCG(include_path)/ZCG(include_path_len) and one letter "path key" in
     191             :  * ZCG(include_path_key).
     192             :  */
     193           6 : static ZEND_INI_MH(accel_include_path_on_modify)
     194             : {
     195           6 :         int ret = orig_include_path_on_modify(entry, new_value, mh_arg1, mh_arg2, mh_arg3, stage TSRMLS_CC);
     196             : 
     197           6 :         ZCG(include_path_key) = NULL;
     198           6 :         if (ret == SUCCESS) {
     199           6 :                 ZCG(include_path) = new_value->val;
     200          12 :                 if (ZCG(include_path) && *ZCG(include_path)) {
     201           6 :                         ZCG(include_path_len) = new_value->len;
     202             : 
     203          21 :                         if (ZCG(enabled) && accel_startup_ok &&
     204           9 :                             (ZCG(counted) || ZCSG(accelerator_enabled))) {
     205             : 
     206           6 :                                 ZCG(include_path_key) = zend_accel_hash_find(&ZCSG(include_paths), ZCG(include_path), ZCG(include_path_len));
     207           9 :                             if (!ZCG(include_path_key) &&
     208           3 :                                 !zend_accel_hash_is_full(&ZCSG(include_paths))) {
     209           3 :                                         SHM_UNPROTECT();
     210           3 :                                         zend_shared_alloc_lock(TSRMLS_C);
     211             : 
     212           3 :                                         ZCG(include_path_key) = zend_accel_hash_find(&ZCSG(include_paths), ZCG(include_path), ZCG(include_path_len));
     213           6 :                                     if (!ZCG(include_path_key) &&
     214           3 :                                             !zend_accel_hash_is_full(&ZCSG(include_paths))) {
     215             :                                                 char *key;
     216             : 
     217           3 :                                                 key = zend_shared_alloc(ZCG(include_path_len) + 2);
     218           3 :                                                 if (key) {
     219           3 :                                                         memcpy(key, ZCG(include_path), ZCG(include_path_len) + 1);
     220           3 :                                                         key[ZCG(include_path_len) + 1] = 'A' + ZCSG(include_paths).num_entries;
     221           3 :                                                         ZCG(include_path_key) = key + ZCG(include_path_len) + 1;
     222           3 :                                                         zend_accel_hash_update(&ZCSG(include_paths), key, ZCG(include_path_len), 0, ZCG(include_path_key));
     223             :                                                 } else {
     224           0 :                                                         zend_accel_schedule_restart_if_necessary(ACCEL_RESTART_OOM TSRMLS_CC);
     225             :                                                 }
     226             :                                         }
     227             : 
     228           3 :                                         zend_shared_alloc_unlock(TSRMLS_C);
     229           3 :                                         SHM_PROTECT();
     230             :                                 }
     231             :                         } else {
     232           0 :                                 ZCG(include_path_check) = 1;
     233             :                         }
     234             :                 } else {
     235           0 :                         ZCG(include_path) = "";
     236           0 :                         ZCG(include_path_len) = 0;
     237             :                 }
     238             :         }
     239           6 :         return ret;
     240             : }
     241             : 
     242             : /* Interned strings support */
     243             : static zend_string *(*orig_new_interned_string)(zend_string *str TSRMLS_DC);
     244             : static void (*orig_interned_strings_snapshot)(TSRMLS_D);
     245             : static void (*orig_interned_strings_restore)(TSRMLS_D);
     246             : 
     247             : /* O+ disables creation of interned strings by regular PHP compiler, instead,
     248             :  * it creates interned strings in shared memory when saves a script.
     249             :  * Such interned strings are shared across all PHP processes
     250             :  */
     251        4717 : static zend_string *accel_new_interned_string_for_php(zend_string *str TSRMLS_DC)
     252             : {
     253        4717 :         return str;
     254             : }
     255             : 
     256         368 : static void accel_interned_strings_snapshot_for_php(TSRMLS_D)
     257             : {
     258         368 : }
     259             : 
     260         368 : static void accel_interned_strings_restore_for_php(TSRMLS_D)
     261             : {
     262         368 : }
     263             : 
     264             : #ifndef ZTS
     265           0 : static void accel_interned_strings_restore_state(TSRMLS_D)
     266             : {
     267           0 :     uint idx = ZCSG(interned_strings).nNumUsed;
     268             :     uint nIndex;
     269             :     Bucket *p;
     270             : 
     271           0 :         ZCSG(interned_strings_top) = ZCSG(interned_strings_saved_top);
     272           0 :     while (idx > 0) {
     273           0 :         idx--;
     274           0 :                 p = ZCSG(interned_strings).arData + idx;
     275           0 :                 if ((char*)p->key < ZCSG(interned_strings_top)) break;
     276           0 :                 ZCSG(interned_strings).nNumUsed--;
     277           0 :                 ZCSG(interned_strings).nNumOfElements--;
     278             : 
     279           0 :                 nIndex = p->h & ZCSG(interned_strings).nTableMask;
     280           0 :                 if (ZCSG(interned_strings).arHash[nIndex] == idx) {
     281           0 :                         ZCSG(interned_strings).arHash[nIndex] = Z_NEXT(p->val);
     282             :                 } else {
     283           0 :                         uint prev = ZCSG(interned_strings).arHash[nIndex];
     284           0 :                         while (Z_NEXT(ZCSG(interned_strings).arData[prev].val) != idx) {
     285           0 :                                 prev = Z_NEXT(ZCSG(interned_strings).arData[prev].val);
     286             :                         }
     287           0 :                         Z_NEXT(ZCSG(interned_strings).arData[prev].val) = Z_NEXT(p->val);
     288             :                 }
     289             :         }
     290           0 : }
     291             : 
     292         368 : static void accel_interned_strings_save_state(TSRMLS_D)
     293             : {
     294         368 :         ZCSG(interned_strings_saved_top) = ZCSG(interned_strings_top);
     295         368 : }
     296             : #endif
     297             : 
     298     4053984 : zend_string *accel_new_interned_string(zend_string *str TSRMLS_DC)
     299             : {
     300             : /* for now interned strings are supported only for non-ZTS build */
     301             : #ifndef ZTS
     302             :         zend_ulong h;
     303             :         uint nIndex;
     304             :         uint idx;
     305             :         Bucket *p;
     306             : 
     307     4053984 :         if (IS_ACCEL_INTERNED(str)) {
     308             :                 /* this is already an interned string */
     309           0 :                 return str;
     310             :         }
     311             : 
     312     4053984 :         h = zend_string_hash_val(str);
     313     4053984 :         nIndex = h & ZCSG(interned_strings).nTableMask;
     314             : 
     315             :         /* check for existing interned string */
     316     4053984 :         idx = ZCSG(interned_strings).arHash[nIndex];
     317     8160669 :         while (idx != INVALID_IDX) {
     318     2490869 :                 p = ZCSG(interned_strings).arData + idx;
     319     2490869 :                 if ((p->h == h) && (p->key->len == str->len)) {
     320     2438168 :                         if (!memcmp(p->key->val, str->val, str->len)) {
     321             :                                 zend_string_release(str);
     322     2438168 :                                 return p->key;
     323             :                         }
     324             :                 }
     325       52701 :                 idx = Z_NEXT(p->val);
     326             :         }
     327             : 
     328     3231632 :         if (ZCSG(interned_strings_top) + ZEND_MM_ALIGNED_SIZE(_STR_HEADER_SIZE + str->len + 1) >=
     329     1615816 :             ZCSG(interned_strings_end)) {
     330             :             /* no memory, return the same non-interned string */
     331           0 :                 zend_accel_error(ACCEL_LOG_WARNING, "Interned string buffer overflow");
     332           0 :                 return str;
     333             :         }
     334             : 
     335             :         /* create new interning string in shared interned strings buffer */
     336             : 
     337     1615816 :         idx = ZCSG(interned_strings).nNumUsed++;
     338     1615816 :         ZCSG(interned_strings).nNumOfElements++;
     339     1615816 :         p = ZCSG(interned_strings).arData + idx;
     340     1615816 :         p->key = (zend_string*) ZCSG(interned_strings_top);
     341     1615816 :         ZCSG(interned_strings_top) += ZEND_MM_ALIGNED_SIZE(_STR_HEADER_SIZE + str->len + 1);
     342     1615816 :         p->h = h;
     343     1615816 :         GC_REFCOUNT(p->key) = 1;
     344             : #if 1
     345             :         /* optimized single assignment */
     346     1615816 :         GC_TYPE_INFO(p->key) = IS_STRING | ((IS_STR_INTERNED | IS_STR_PERMANENT) << 8);
     347             : #else
     348             :         GC_TYPE(p->key) = IS_STRING;
     349             :         GC_FLAGS(p->key) = IS_STR_INTERNED | IS_STR_PERMANENT;
     350             : #endif
     351     1615816 :         p->key->h = str->h;
     352     1615816 :         p->key->len = str->len;
     353     1615816 :         memcpy(p->key->val, str->val, str->len);
     354     1615816 :         ZVAL_STR(&p->val, p->key);
     355     1615816 :         Z_NEXT(p->val) = ZCSG(interned_strings).arHash[nIndex];
     356     1615816 :         ZCSG(interned_strings).arHash[nIndex] = idx;
     357             :         zend_string_release(str);
     358     1615816 :         return p->key;
     359             : #else
     360             :         return str;
     361             : #endif
     362             : }
     363             : 
     364             : #ifndef ZTS
     365             : /* Copy PHP interned strings from PHP process memory into the shared memory */
     366         368 : static void accel_use_shm_interned_strings(TSRMLS_D)
     367             : {
     368             :         uint idx, j;
     369             :         Bucket *p, *q;
     370             : 
     371             :         /* empty string */
     372         368 :         CG(empty_string) = accel_new_interned_string(CG(empty_string) TSRMLS_CC);
     373       94576 :         for (j = 0; j < 256; j++) {
     374             :                 char s[2];
     375       94208 :                 s[0] = j;
     376       94208 :                 s[1] = 0;
     377      188416 :                 CG(one_char_string)[j] = accel_new_interned_string(zend_string_init(s, 1, 0) TSRMLS_CC);
     378             :         }
     379             : 
     380             :         /* function table hash keys */
     381      823576 :         for (idx = 0; idx < CG(function_table)->nNumUsed; idx++) {                
     382      823208 :                 p = CG(function_table)->arData + idx;
     383     1646416 :                 if (Z_TYPE(p->val) == IS_UNDEF) continue;
     384      823208 :                 if (p->key) {
     385      823208 :                         p->key = accel_new_interned_string(p->key TSRMLS_CC);
     386             :                 }
     387      823208 :                 if (Z_FUNC(p->val)->common.function_name) {
     388      823208 :                         Z_FUNC(p->val)->common.function_name = accel_new_interned_string(Z_FUNC(p->val)->common.function_name TSRMLS_CC);
     389             :                 }
     390             :         }
     391             : 
     392             :         /* class table hash keys, class names, properties, methods, constants, etc */
     393       65872 :         for (idx = 0; idx < CG(class_table)->nNumUsed; idx++) {
     394             :                 zend_class_entry *ce;
     395             : 
     396       65504 :                 p = CG(class_table)->arData + idx;
     397      131008 :                 if (Z_TYPE(p->val) == IS_UNDEF) continue;
     398       65504 :                 ce = (zend_class_entry*)Z_PTR(p->val);
     399             : 
     400       65504 :                 if (p->key) {
     401       65504 :                         p->key = accel_new_interned_string(p->key TSRMLS_CC);
     402             :                 }
     403             : 
     404       65504 :                 if (ce->name) {
     405       65504 :                         ce->name = accel_new_interned_string(ce->name TSRMLS_CC);
     406             :                 }
     407             : 
     408      149408 :                 for (j = 0; j < ce->properties_info.nNumUsed; j++) {
     409             :                         zend_property_info *info;
     410             : 
     411       83904 :                         q = ce->properties_info.arData + j;
     412      167808 :                         if (Z_TYPE(q->val) == IS_UNDEF) continue;
     413             :                         
     414       83536 :                         info = (zend_property_info*)Z_PTR(q->val);
     415             : 
     416       83536 :                         if (q->key) {
     417       83536 :                                 q->key = accel_new_interned_string(q->key TSRMLS_CC);
     418             :                         }
     419             : 
     420       83536 :                         if (info->name) {
     421       83536 :                                 info->name = accel_new_interned_string(info->name TSRMLS_CC);
     422             :                         }
     423             :                 }
     424             : 
     425     1067568 :                 for (j = 0; j < ce->function_table.nNumUsed; j++) {
     426     1002064 :                         q = ce->function_table.arData + j;
     427     2004128 :                         if (Z_TYPE(q->val) == IS_UNDEF) continue;
     428     1002064 :                         if (q->key) {
     429     1002064 :                                 q->key = accel_new_interned_string(q->key TSRMLS_CC);
     430             :                         }
     431     1002064 :                         if (Z_FUNC(q->val)->common.function_name) {
     432     1002064 :                                 Z_FUNC(q->val)->common.function_name = accel_new_interned_string(Z_FUNC(q->val)->common.function_name TSRMLS_CC);
     433             :                         }
     434             :                 }
     435             : 
     436      308384 :                 for (j = 0; j < ce->constants_table.nNumUsed; j++) {
     437      242880 :                         q = ce->constants_table.arData + j;
     438      485760 :                         if (!Z_TYPE(q->val) == IS_UNDEF) continue;
     439           0 :                         if (q->key) {
     440           0 :                                 q->key = accel_new_interned_string(q->key TSRMLS_CC);
     441             :                         }
     442             :                 }
     443             :         }
     444             : 
     445             :         /* constant hash keys */
     446      919264 :         for (idx = 0; idx < EG(zend_constants)->nNumUsed; idx++) {                
     447      918896 :                 p = EG(zend_constants)->arData + idx;
     448     1837792 :                 if (!Z_TYPE(p->val) == IS_UNDEF) continue;
     449           0 :                 if (p->key) {
     450           0 :                         p->key = accel_new_interned_string(p->key TSRMLS_CC);
     451             :                 }
     452             :         }
     453             : 
     454             :         /* auto globals hash keys and names */
     455        3680 :         for (idx = 0; idx < CG(auto_globals)->nNumUsed; idx++) {          
     456             :                 zend_auto_global *auto_global;
     457             : 
     458        3312 :                 p = CG(auto_globals)->arData + idx;
     459        6624 :                 if (Z_TYPE(p->val) == IS_UNDEF) continue;
     460             :                 
     461        3312 :                 auto_global = (zend_auto_global*)Z_PTR(p->val);;
     462             : 
     463        3312 :                 auto_global->name = accel_new_interned_string(auto_global->name TSRMLS_CC);
     464        3312 :                 if (p->key) {
     465        3312 :                         p->key = accel_new_interned_string(p->key TSRMLS_CC);
     466             :                 }
     467             :         }
     468         368 : }
     469             : #endif
     470             : 
     471           0 : static inline void accel_restart_enter(TSRMLS_D)
     472             : {
     473             : #ifdef ZEND_WIN32
     474             :         INCREMENT(restart_in);
     475             : #else
     476             :         static const FLOCK_STRUCTURE(restart_in_progress, F_WRLCK, SEEK_SET, 2, 1);
     477             : 
     478           0 :         if (fcntl(lock_file, F_SETLK, &restart_in_progress) == -1) {
     479           0 :                 zend_accel_error(ACCEL_LOG_DEBUG, "RestartC(+1):  %s (%d)", strerror(errno), errno);
     480             :         }
     481             : #endif
     482           0 :         ZCSG(restart_in_progress) = 1;
     483           0 : }
     484             : 
     485           0 : static inline void accel_restart_leave(TSRMLS_D)
     486             : {
     487             : #ifdef ZEND_WIN32
     488             :         ZCSG(restart_in_progress) = 0;
     489             :         DECREMENT(restart_in);
     490             : #else
     491             :         static const FLOCK_STRUCTURE(restart_finished, F_UNLCK, SEEK_SET, 2, 1);
     492             : 
     493           0 :         ZCSG(restart_in_progress) = 0;
     494           0 :         if (fcntl(lock_file, F_SETLK, &restart_finished) == -1) {
     495           0 :                 zend_accel_error(ACCEL_LOG_DEBUG, "RestartC(-1):  %s (%d)", strerror(errno), errno);
     496             :         }
     497             : #endif
     498           0 : }
     499             : 
     500           0 : static inline int accel_restart_is_active(TSRMLS_D)
     501             : {
     502           0 :         if (ZCSG(restart_in_progress)) {
     503             : #ifndef ZEND_WIN32
     504           0 :                 FLOCK_STRUCTURE(restart_check, F_WRLCK, SEEK_SET, 2, 1);
     505             : 
     506           0 :                 if (fcntl(lock_file, F_GETLK, &restart_check) == -1) {
     507           0 :                         zend_accel_error(ACCEL_LOG_DEBUG, "RestartC:  %s (%d)", strerror(errno), errno);
     508           0 :                         return FAILURE;
     509             :                 }
     510           0 :                 if (restart_check.l_type == F_UNLCK) {
     511           0 :                         ZCSG(restart_in_progress) = 0;
     512           0 :                         return 0;
     513             :                 } else {
     514           0 :                         return 1;
     515             :                 }
     516             : #else
     517             :                 return LOCKVAL(restart_in) != 0;
     518             : #endif
     519             :         }
     520           0 :         return 0;
     521             : }
     522             : 
     523             : /* Creates a read lock for SHM access */
     524         368 : static inline void accel_activate_add(TSRMLS_D)
     525             : {
     526             : #ifdef ZEND_WIN32
     527             :         INCREMENT(mem_usage);
     528             : #else
     529             :         static const FLOCK_STRUCTURE(mem_usage_lock, F_RDLCK, SEEK_SET, 1, 1);
     530             : 
     531         368 :         if (fcntl(lock_file, F_SETLK, &mem_usage_lock) == -1) {
     532           0 :                 zend_accel_error(ACCEL_LOG_DEBUG, "UpdateC(+1):  %s (%d)", strerror(errno), errno);
     533             :         }
     534             : #endif
     535         368 : }
     536             : 
     537             : /* Releases a lock for SHM access */
     538           0 : static inline void accel_deactivate_sub(TSRMLS_D)
     539             : {
     540             : #ifdef ZEND_WIN32
     541             :         if (ZCG(counted)) {
     542             :                 DECREMENT(mem_usage);
     543             :                 ZCG(counted) = 0;
     544             :         }
     545             : #else
     546             :         static const FLOCK_STRUCTURE(mem_usage_unlock, F_UNLCK, SEEK_SET, 1, 1);
     547             : 
     548           0 :         if (fcntl(lock_file, F_SETLK, &mem_usage_unlock) == -1) {
     549           0 :                 zend_accel_error(ACCEL_LOG_DEBUG, "UpdateC(-1):  %s (%d)", strerror(errno), errno);
     550             :         }
     551             : #endif
     552           0 : }
     553             : 
     554         368 : static inline void accel_unlock_all(TSRMLS_D)
     555             : {
     556             : #ifdef ZEND_WIN32
     557             :         accel_deactivate_sub(TSRMLS_C);
     558             : #else
     559             :         static const FLOCK_STRUCTURE(mem_usage_unlock_all, F_UNLCK, SEEK_SET, 0, 0);
     560             : 
     561         368 :         if (fcntl(lock_file, F_SETLK, &mem_usage_unlock_all) == -1) {
     562           0 :                 zend_accel_error(ACCEL_LOG_DEBUG, "UnlockAll:  %s (%d)", strerror(errno), errno);
     563             :         }
     564             : #endif
     565         368 : }
     566             : 
     567             : #ifndef ZEND_WIN32
     568           0 : static inline void kill_all_lockers(struct flock *mem_usage_check)
     569             : {
     570           0 :         int tries = 10;
     571             : 
     572             :         /* so that other process won't try to force while we are busy cleaning up */
     573           0 :         ZCSG(force_restart_time) = 0;
     574           0 :         while (mem_usage_check->l_pid > 0) {
     575           0 :                 while (tries--) {
     576           0 :                         zend_accel_error(ACCEL_LOG_INFO, "Killed locker %d", mem_usage_check->l_pid);
     577           0 :                         if (kill(mem_usage_check->l_pid, SIGKILL)) {
     578           0 :                                 break;
     579             :                         }
     580             :                         /* give it a chance to die */
     581           0 :                         usleep(20000);
     582           0 :                         if (kill(mem_usage_check->l_pid, 0)) {
     583             :                                 /* can't kill it */
     584           0 :                                 break;
     585             :                         }
     586           0 :                         usleep(10000);
     587             :                 }
     588           0 :                 if (!tries) {
     589           0 :                         zend_accel_error(ACCEL_LOG_INFO, "Can't kill %d after 20 tries!", mem_usage_check->l_pid);
     590           0 :                         ZCSG(force_restart_time) = time(NULL); /* restore forced restart request */
     591             :                 }
     592             : 
     593           0 :                 mem_usage_check->l_type = F_WRLCK;
     594           0 :                 mem_usage_check->l_whence = SEEK_SET;
     595           0 :                 mem_usage_check->l_start = 1;
     596           0 :                 mem_usage_check->l_len = 1;
     597           0 :                 mem_usage_check->l_pid = -1;
     598           0 :                 if (fcntl(lock_file, F_GETLK, mem_usage_check) == -1) {
     599           0 :                         zend_accel_error(ACCEL_LOG_DEBUG, "KLockers:  %s (%d)", strerror(errno), errno);
     600           0 :                         break;
     601             :                 }
     602             : 
     603           0 :                 if (mem_usage_check->l_type == F_UNLCK || mem_usage_check->l_pid <= 0) {
     604             :                         break;
     605             :                 }
     606             :         }
     607           0 : }
     608             : #endif
     609             : 
     610           0 : static inline int accel_is_inactive(TSRMLS_D)
     611             : {
     612             : #ifdef ZEND_WIN32
     613             :         if (LOCKVAL(mem_usage) == 0) {
     614             :                 return SUCCESS;
     615             :         }
     616             : #else
     617           0 :         FLOCK_STRUCTURE(mem_usage_check, F_WRLCK, SEEK_SET, 1, 1);
     618             : 
     619           0 :         mem_usage_check.l_pid = -1;
     620           0 :         if (fcntl(lock_file, F_GETLK, &mem_usage_check) == -1) {
     621           0 :                 zend_accel_error(ACCEL_LOG_DEBUG, "UpdateC:  %s (%d)", strerror(errno), errno);
     622           0 :                 return FAILURE;
     623             :         }
     624           0 :         if (mem_usage_check.l_type == F_UNLCK) {
     625           0 :                 return SUCCESS;
     626             :         }
     627             : 
     628           0 :         if (ZCG(accel_directives).force_restart_timeout
     629           0 :                 && ZCSG(force_restart_time)
     630           0 :                 && time(NULL) >= ZCSG(force_restart_time)) {
     631           0 :                 zend_accel_error(ACCEL_LOG_WARNING, "Forced restart at %d (after %d seconds), locked by %d", time(NULL), ZCG(accel_directives).force_restart_timeout, mem_usage_check.l_pid);
     632           0 :                 kill_all_lockers(&mem_usage_check);
     633             : 
     634           0 :                 return FAILURE; /* next request should be able to restart it */
     635             :         }
     636             : #endif
     637             : 
     638           0 :         return FAILURE;
     639             : }
     640             : 
     641          34 : static int zend_get_stream_timestamp(const char *filename, zend_stat_t *statbuf TSRMLS_DC)
     642             : {
     643             :         php_stream_wrapper *wrapper;
     644             :         php_stream_statbuf stream_statbuf;
     645             :         int ret, er;
     646             : 
     647          34 :         if (!filename) {
     648           0 :                 return FAILURE;
     649             :         }
     650             : 
     651          34 :         wrapper = php_stream_locate_url_wrapper(filename, NULL, STREAM_LOCATE_WRAPPERS_ONLY TSRMLS_CC);
     652          34 :         if (!wrapper) {
     653           0 :                 return FAILURE;
     654             :         }
     655          34 :         if (!wrapper->wops || !wrapper->wops->url_stat) {
     656           0 :                 statbuf->st_mtime = 1;
     657           0 :                 return SUCCESS; /* anything other than 0 is considered to be a valid timestamp */
     658             :         }
     659             : 
     660          34 :         er = EG(error_reporting);
     661          34 :         EG(error_reporting) = 0;
     662          34 :         zend_try {
     663          34 :                 ret = wrapper->wops->url_stat(wrapper, (char*)filename, PHP_STREAM_URL_STAT_QUIET, &stream_statbuf, NULL TSRMLS_CC);
     664           0 :         } zend_catch {
     665           0 :                 ret = -1;
     666          34 :         } zend_end_try();
     667          34 :         EG(error_reporting) = er;
     668             : 
     669          34 :         if (ret != 0) {
     670           0 :                 return FAILURE;
     671             :         }
     672             : 
     673          34 :         *statbuf = stream_statbuf.sb;
     674          34 :         return SUCCESS;
     675             : }
     676             : 
     677             : #if ZEND_WIN32
     678             : static accel_time_t zend_get_file_handle_timestamp_win(zend_file_handle *file_handle, size_t *size)
     679             : {
     680             :         static unsigned __int64 utc_base = 0;
     681             :         static FILETIME utc_base_ft;
     682             :         WIN32_FILE_ATTRIBUTE_DATA fdata;
     683             : 
     684             :         if (!file_handle->opened_path) {
     685             :                 return 0;
     686             :         }
     687             : 
     688             :         if (!utc_base) {
     689             :                 SYSTEMTIME st;
     690             : 
     691             :                 st.wYear = 1970;
     692             :                 st.wMonth = 1;
     693             :                 st.wDay = 1;
     694             :                 st.wHour = 0;
     695             :                 st.wMinute = 0;
     696             :                 st.wSecond = 0;
     697             :                 st.wMilliseconds = 0;
     698             : 
     699             :                 SystemTimeToFileTime (&st, &utc_base_ft);
     700             :                 utc_base = (((unsigned __int64)utc_base_ft.dwHighDateTime) << 32) + utc_base_ft.dwLowDateTime;
     701             :     }
     702             : 
     703             :         if (GetFileAttributesEx(file_handle->opened_path, GetFileExInfoStandard, &fdata) != 0) {
     704             :                 unsigned __int64 ftime;
     705             : 
     706             :                 if (CompareFileTime (&fdata.ftLastWriteTime, &utc_base_ft) < 0) {
     707             :                         return 0;
     708             :                 }
     709             : 
     710             :                 ftime = (((unsigned __int64)fdata.ftLastWriteTime.dwHighDateTime) << 32) + fdata.ftLastWriteTime.dwLowDateTime - utc_base;
     711             :                 ftime /= 10000000L;
     712             : 
     713             :                 if (size) {
     714             :                         *size = (size_t)((((unsigned __int64)fdata.nFileSizeHigh) << 32) + (unsigned __int64)fdata.nFileSizeLow);
     715             :                 }
     716             :                 return (accel_time_t)ftime;
     717             :         }
     718             :         return 0;
     719             : }
     720             : #endif
     721             : 
     722         423 : static accel_time_t zend_get_file_handle_timestamp(zend_file_handle *file_handle, size_t *size TSRMLS_DC)
     723             : {
     724             :         zend_stat_t statbuf;
     725             : #ifdef ZEND_WIN32
     726             :         accel_time_t res;
     727             : #endif
     728             : 
     729         423 :         if (sapi_module.get_stat &&
     730           0 :             !EG(current_execute_data) &&
     731           0 :             file_handle->filename == SG(request_info).path_translated) {
     732             : 
     733           0 :                 zend_stat_t *tmpbuf = sapi_module.get_stat(TSRMLS_C);
     734             : 
     735           0 :                 if (tmpbuf) {
     736           0 :                         if (size) {
     737           0 :                                 *size = tmpbuf->st_size;
     738             :                         }
     739           0 :                         return tmpbuf->st_mtime;
     740             :                 }
     741             :         }
     742             : 
     743             : #ifdef ZEND_WIN32
     744             :         res = zend_get_file_handle_timestamp_win(file_handle, size);
     745             :         if (res) {
     746             :                 return res;
     747             :         }
     748             : #endif
     749             : 
     750         423 :         switch (file_handle->type) {
     751             :                 case ZEND_HANDLE_FD:
     752           0 :                         if (zend_fstat(file_handle->handle.fd, &statbuf) == -1) {
     753           0 :                                 return 0;
     754             :                         }
     755           0 :                         break;
     756             :                 case ZEND_HANDLE_FP:
     757           2 :                         if (zend_fstat(fileno(file_handle->handle.fp), &statbuf) == -1) {
     758           0 :                                 if (zend_get_stream_timestamp(file_handle->filename, &statbuf TSRMLS_CC) != SUCCESS) {
     759           0 :                                         return 0;
     760             :                                 }
     761             :                         }
     762           2 :                         break;
     763             :                 case ZEND_HANDLE_FILENAME:
     764             :                 case ZEND_HANDLE_MAPPED:
     765             :                         {
     766         420 :                                 char *file_path = file_handle->opened_path;
     767             : 
     768         420 :                                 if (file_path) {
     769         420 :                                         if (is_stream_path(file_path)) {
     770          34 :                                                 if (zend_get_stream_timestamp(file_path, &statbuf TSRMLS_CC) == SUCCESS) {
     771          34 :                                                         break;
     772             :                                                 }
     773             :                                         }
     774         386 :                                         if (VCWD_STAT(file_path, &statbuf) != -1) {
     775         386 :                                                 break;
     776             :                                         }
     777             :                                 }
     778             : 
     779           0 :                                 if (zend_get_stream_timestamp(file_handle->filename, &statbuf TSRMLS_CC) != SUCCESS) {
     780           0 :                                         return 0;
     781             :                                 }
     782           0 :                                 break;
     783             :                         }
     784             :                 case ZEND_HANDLE_STREAM:
     785             :                         {
     786           1 :                                 php_stream *stream = (php_stream *)file_handle->handle.stream.handle;
     787             :                                 php_stream_statbuf sb;
     788             :                                 int ret, er;
     789             : 
     790           3 :                                 if (!stream ||
     791           1 :                                     !stream->ops ||
     792           1 :                                     !stream->ops->stat) {
     793           0 :                                         return 0;
     794             :                                 }
     795             : 
     796           1 :                                 er = EG(error_reporting);
     797           1 :                                 EG(error_reporting) = 0;
     798           1 :                                 zend_try {
     799           1 :                                         ret = stream->ops->stat(stream, &sb TSRMLS_CC);
     800           0 :                                 } zend_catch {
     801           0 :                                         ret = -1;
     802           1 :                                 } zend_end_try();
     803           1 :                                 EG(error_reporting) = er;
     804           1 :                                 if (ret != 0) {
     805           0 :                                         return 0;
     806             :                                 }
     807             : 
     808           1 :                                 statbuf = sb.sb;
     809             :                         }
     810           1 :                         break;
     811             : 
     812             :                 default:
     813           0 :                         return 0;
     814             :         }
     815             : 
     816         423 :         if (size) {
     817           0 :                 *size = statbuf.st_size;
     818             :         }
     819         423 :         return statbuf.st_mtime;
     820             : }
     821             : 
     822           0 : static inline int do_validate_timestamps(zend_persistent_script *persistent_script, zend_file_handle *file_handle TSRMLS_DC)
     823             : {
     824             :         zend_file_handle ps_handle;
     825           0 :         char *full_path_ptr = NULL;
     826             : 
     827             :         /** check that the persistent script is indeed the same file we cached
     828             :          * (if part of the path is a symlink than it possible that the user will change it)
     829             :          * See bug #15140
     830             :          */
     831           0 :         if (file_handle->opened_path) {
     832           0 :                 if (strcmp(persistent_script->full_path->val, file_handle->opened_path) != 0) {
     833           0 :                         return FAILURE;
     834             :                 }
     835             :         } else {                
     836           0 :                 full_path_ptr = accelerator_orig_zend_resolve_path(file_handle->filename, strlen(file_handle->filename) TSRMLS_CC);
     837           0 :                 if (full_path_ptr && strcmp(persistent_script->full_path->val, full_path_ptr) != 0) {
     838           0 :                         efree(full_path_ptr);
     839           0 :                         return FAILURE;
     840             :                 }
     841           0 :                 file_handle->opened_path = full_path_ptr;
     842             :         }
     843             : 
     844           0 :         if (persistent_script->timestamp == 0) {
     845           0 :                 if (full_path_ptr) {
     846           0 :                         efree(full_path_ptr);
     847           0 :                         file_handle->opened_path = NULL;
     848             :                 }
     849           0 :                 return FAILURE;
     850             :         }
     851             : 
     852           0 :         if (zend_get_file_handle_timestamp(file_handle, NULL TSRMLS_CC) == persistent_script->timestamp) {
     853           0 :                 if (full_path_ptr) {
     854           0 :                         efree(full_path_ptr);
     855           0 :                         file_handle->opened_path = NULL;
     856             :                 }
     857           0 :                 return SUCCESS;
     858             :         }
     859           0 :         if (full_path_ptr) {
     860           0 :                 efree(full_path_ptr);
     861           0 :                 file_handle->opened_path = NULL;
     862             :         }
     863             : 
     864           0 :         ps_handle.type = ZEND_HANDLE_FILENAME;
     865           0 :         ps_handle.filename = persistent_script->full_path->val;
     866           0 :         ps_handle.opened_path = persistent_script->full_path->val;
     867             : 
     868           0 :         if (zend_get_file_handle_timestamp(&ps_handle, NULL TSRMLS_CC) == persistent_script->timestamp) {
     869           0 :                 return SUCCESS;
     870             :         }
     871             : 
     872           0 :         return FAILURE;
     873             : }
     874             : 
     875           0 : int validate_timestamp_and_record(zend_persistent_script *persistent_script, zend_file_handle *file_handle TSRMLS_DC)
     876             : {
     877           0 :         if (ZCG(accel_directives).revalidate_freq &&
     878           0 :             persistent_script->dynamic_members.revalidate >= ZCG(request_time)) {
     879           0 :                 return SUCCESS;
     880           0 :         } else if (do_validate_timestamps(persistent_script, file_handle TSRMLS_CC) == FAILURE) {
     881           0 :                 return FAILURE;
     882             :         } else {
     883           0 :                 persistent_script->dynamic_members.revalidate = ZCG(request_time) + ZCG(accel_directives).revalidate_freq;
     884           0 :                 return SUCCESS;
     885             :         }
     886             : }
     887             : 
     888         422 : static unsigned int zend_accel_script_checksum(zend_persistent_script *persistent_script)
     889             : {
     890         422 :         signed char *mem = (signed char*)persistent_script->mem;
     891         422 :         size_t size = persistent_script->size;
     892         422 :         size_t persistent_script_check_block_size = ((char *)&(persistent_script->dynamic_members)) - (char *)persistent_script;
     893         422 :         unsigned int checksum = ADLER32_INIT;
     894             : 
     895         422 :         if (mem < (signed char*)persistent_script) {
     896           0 :                 checksum = zend_adler32(checksum, mem, (signed char*)persistent_script - mem);
     897           0 :                 size -= (signed char*)persistent_script - mem;
     898           0 :                 mem  += (signed char*)persistent_script - mem;
     899             :         }
     900             : 
     901         422 :         zend_adler32(checksum, mem, persistent_script_check_block_size);
     902         422 :         mem  += sizeof(*persistent_script);
     903         422 :         size -= sizeof(*persistent_script);
     904             : 
     905         422 :         if (size > 0) {
     906         422 :                 checksum = zend_adler32(checksum, mem, size);
     907             :         }
     908         422 :         return checksum;
     909             : }
     910             : 
     911             : /* Instead of resolving full real path name each time we need to identify file,
     912             :  * we create a key that consist from requested file name, current working
     913             :  * directory, current include_path, etc */
     914        1171 : char *accel_make_persistent_key_ex(zend_file_handle *file_handle, int path_length, int *key_len TSRMLS_DC)
     915             : {
     916             :     int key_length;
     917             : 
     918             :     /* CWD and include_path don't matter for absolute file names and streams */
     919        2428 :     if (ZCG(accel_directives).use_cwd &&
     920        1171 :         !IS_ABSOLUTE_PATH(file_handle->filename, path_length) &&
     921          57 :         !is_stream_path(file_handle->filename)) {
     922          29 :         char *include_path = NULL;
     923          29 :         int include_path_len = 0;
     924          29 :         const char *parent_script = NULL;
     925          29 :         int parent_script_len = 0;
     926          29 :         int cur_len = 0;
     927             :         int cwd_len;
     928             :         char *cwd;
     929             : 
     930          29 :         if ((cwd = accel_getcwd(&cwd_len TSRMLS_CC)) == NULL) {
     931             :             /* we don't handle this well for now. */
     932           0 :             zend_accel_error(ACCEL_LOG_INFO, "getcwd() failed for '%s' (%d), please try to set opcache.use_cwd to 0 in ini file", file_handle->filename, errno);
     933           0 :             if (file_handle->opened_path) {
     934           0 :                 cwd = file_handle->opened_path;
     935           0 :                         cwd_len = strlen(cwd);
     936             :             } else {
     937           0 :                                 ZCG(key_len) = 0;
     938           0 :                 return NULL;
     939             :             }
     940             :         }
     941             : 
     942          29 :                 if (ZCG(include_path_key)) {
     943          29 :                         include_path = ZCG(include_path_key);
     944          29 :                         include_path_len = 1;
     945             :                 } else {
     946           0 :                 include_path = ZCG(include_path);
     947           0 :             include_path_len = ZCG(include_path_len);
     948           0 :                         if (ZCG(include_path_check) &&
     949           0 :                             ZCG(enabled) && accel_startup_ok &&
     950           0 :                             (ZCG(counted) || ZCSG(accelerator_enabled)) &&
     951           0 :                             !zend_accel_hash_find(&ZCSG(include_paths), ZCG(include_path), ZCG(include_path_len)) &&
     952           0 :                             !zend_accel_hash_is_full(&ZCSG(include_paths))) {
     953             : 
     954           0 :                                 SHM_UNPROTECT();
     955           0 :                                 zend_shared_alloc_lock(TSRMLS_C);
     956             : 
     957           0 :                                 ZCG(include_path_key) = zend_accel_hash_find(&ZCSG(include_paths), ZCG(include_path), ZCG(include_path_len));
     958           0 :                                 if (ZCG(include_path_key)) {
     959           0 :                                         include_path = ZCG(include_path_key);
     960           0 :                                         include_path_len = 1;
     961           0 :                                 } else if (!zend_accel_hash_is_full(&ZCSG(include_paths))) {
     962             :                                         char *key;
     963             : 
     964           0 :                                         key = zend_shared_alloc(ZCG(include_path_len) + 2);
     965           0 :                                         if (key) {
     966           0 :                                                 memcpy(key, ZCG(include_path), ZCG(include_path_len) + 1);
     967           0 :                                                 key[ZCG(include_path_len) + 1] = 'A' + ZCSG(include_paths).num_entries;
     968           0 :                                                 ZCG(include_path_key) = key + ZCG(include_path_len) + 1;
     969           0 :                                                 zend_accel_hash_update(&ZCSG(include_paths), key, ZCG(include_path_len), 0, ZCG(include_path_key));
     970           0 :                                                 include_path = ZCG(include_path_key);
     971           0 :                                                 include_path_len = 1;
     972             :                                         } else {
     973           0 :                                                 zend_accel_schedule_restart_if_necessary(ACCEL_RESTART_OOM TSRMLS_CC);
     974             :                                         }
     975             :                 }
     976             : 
     977           0 :                                 zend_shared_alloc_unlock(TSRMLS_C);
     978           0 :                                 SHM_PROTECT();
     979             :                         }
     980             :                 }
     981             : 
     982             :         /* Here we add to the key the parent script directory,
     983             :            since fopen_wrappers from version 4.0.7 use current script's path
     984             :            in include path too.
     985             :         */
     986          87 :         if (EG(current_execute_data) &&
     987          29 :             (parent_script = zend_get_executed_filename(TSRMLS_C)) != NULL &&
     988          29 :                 parent_script[0] != '[') {
     989             : 
     990          29 :             parent_script_len = strlen(parent_script);
     991         578 :             while ((--parent_script_len > 0) && !IS_SLASH(parent_script[parent_script_len]));
     992             :         }
     993             : 
     994             :         /* Calculate key length */
     995          29 :         key_length = cwd_len + path_length + include_path_len + 2;
     996          29 :         if (parent_script_len) {
     997          29 :             key_length += parent_script_len + 1;
     998             :         }
     999             : 
    1000             :         /* Generate key
    1001             :          * Note - the include_path must be the last element in the key,
    1002             :          * since in itself, it may include colons (which we use to separate
    1003             :          * different components of the key)
    1004             :          */
    1005          29 :                 if ((size_t)key_length >= sizeof(ZCG(key))) {
    1006           0 :                         ZCG(key_len) = 0;
    1007           0 :                         return NULL;
    1008             :                 }
    1009          29 :                 memcpy(ZCG(key), cwd, cwd_len);
    1010          29 :                 ZCG(key)[cwd_len] = ':';
    1011             : 
    1012          29 :                 memcpy(ZCG(key) + cwd_len + 1, file_handle->filename, path_length);
    1013             : 
    1014          29 :                 ZCG(key)[cwd_len + 1 + path_length] = ':';
    1015             : 
    1016          29 :         cur_len = cwd_len + 1 + path_length + 1;
    1017             : 
    1018          29 :         if (parent_script_len) {
    1019          29 :                         memcpy(ZCG(key) + cur_len, parent_script, parent_script_len);
    1020          29 :             cur_len += parent_script_len;
    1021          29 :                         ZCG(key)[cur_len] = ':';
    1022          29 :             cur_len++;
    1023             :         }
    1024          29 :                 memcpy(ZCG(key) + cur_len, include_path, include_path_len);
    1025          29 :                 ZCG(key)[key_length] = '\0';
    1026             :     } else {
    1027             :         /* not use_cwd */
    1028        1142 :         key_length = path_length;
    1029        1142 :                 if ((size_t)key_length >= sizeof(ZCG(key))) {
    1030           0 :                         ZCG(key_len) = 0;
    1031           0 :                         return NULL;
    1032             :                 }
    1033        1142 :                 memcpy(ZCG(key), file_handle->filename, key_length + 1);
    1034             :     }
    1035             : 
    1036        1171 :         *key_len = ZCG(key_len) = key_length;
    1037        1171 :         return ZCG(key);
    1038             : }
    1039             : 
    1040         425 : static inline char *accel_make_persistent_key(zend_file_handle *file_handle, int *key_len TSRMLS_DC)
    1041             : {
    1042         425 :         return accel_make_persistent_key_ex(file_handle, strlen(file_handle->filename), key_len TSRMLS_CC);
    1043             : }
    1044             : 
    1045           0 : int zend_accel_invalidate(const char *filename, int filename_len, zend_bool force TSRMLS_DC)
    1046             : {
    1047             :         char *realpath;
    1048             :         zend_persistent_script *persistent_script;
    1049             : 
    1050           0 :         if (!ZCG(enabled) || !accel_startup_ok || !ZCSG(accelerator_enabled) || accelerator_shm_read_lock(TSRMLS_C) != SUCCESS) {
    1051           0 :                 return FAILURE;
    1052             :         }
    1053             : 
    1054           0 :         realpath = accelerator_orig_zend_resolve_path(filename, filename_len TSRMLS_CC);
    1055             : 
    1056           0 :         if (!realpath) {
    1057           0 :                 return FAILURE;
    1058             :         }
    1059             : 
    1060           0 :         persistent_script = zend_accel_hash_find(&ZCSG(hash), realpath, strlen(realpath));
    1061           0 :         if (persistent_script && !persistent_script->corrupted) {
    1062             :                 zend_file_handle file_handle;
    1063             : 
    1064           0 :                 file_handle.type = ZEND_HANDLE_FILENAME;
    1065           0 :                 file_handle.filename = realpath;
    1066           0 :                 file_handle.opened_path = realpath;
    1067             : 
    1068           0 :                 if (force ||
    1069           0 :                         !ZCG(accel_directives).validate_timestamps ||
    1070           0 :                         do_validate_timestamps(persistent_script, &file_handle TSRMLS_CC) == FAILURE) {
    1071           0 :                         SHM_UNPROTECT();
    1072           0 :                         zend_shared_alloc_lock(TSRMLS_C);
    1073           0 :                         if (!persistent_script->corrupted) {
    1074           0 :                                 persistent_script->corrupted = 1;
    1075           0 :                                 persistent_script->timestamp = 0;
    1076           0 :                                 ZSMMG(wasted_shared_memory) += persistent_script->dynamic_members.memory_consumption;
    1077           0 :                                 if (ZSMMG(memory_exhausted)) {
    1078             :                                         zend_accel_restart_reason reason =
    1079           0 :                                                 zend_accel_hash_is_full(&ZCSG(hash)) ? ACCEL_RESTART_HASH : ACCEL_RESTART_OOM;
    1080           0 :                                         zend_accel_schedule_restart_if_necessary(reason TSRMLS_CC);
    1081             :                                 }
    1082             :                         }
    1083           0 :                         zend_shared_alloc_unlock(TSRMLS_C);
    1084           0 :                         SHM_PROTECT();
    1085             :                 }
    1086             :         }
    1087             : 
    1088           0 :         accelerator_shm_read_unlock(TSRMLS_C);
    1089           0 :         efree(realpath);
    1090             :         
    1091           0 :         return SUCCESS;
    1092             : }
    1093             : 
    1094             : /* Adds another key for existing cached script */
    1095           0 : static void zend_accel_add_key(char *key, unsigned int key_length, zend_accel_hash_entry *bucket TSRMLS_DC)
    1096             : {
    1097           0 :         if (!zend_accel_hash_find(&ZCSG(hash), key, key_length)) {
    1098           0 :                 if (zend_accel_hash_is_full(&ZCSG(hash))) {
    1099           0 :                         zend_accel_error(ACCEL_LOG_DEBUG, "No more entries in hash table!");
    1100           0 :                         ZSMMG(memory_exhausted) = 1;
    1101           0 :                         zend_accel_schedule_restart_if_necessary(ACCEL_RESTART_HASH TSRMLS_CC);
    1102             :                 } else {
    1103           0 :                         char *new_key = zend_shared_alloc(key_length + 1);
    1104           0 :                         if (new_key) {
    1105           0 :                                 memcpy(new_key, key, key_length + 1);
    1106           0 :                                 if (zend_accel_hash_update(&ZCSG(hash), new_key, key_length, 1, bucket)) {
    1107           0 :                                         zend_accel_error(ACCEL_LOG_INFO, "Added key '%s'", new_key);
    1108             :                                 }
    1109             :                         } else {
    1110           0 :                                 zend_accel_schedule_restart_if_necessary(ACCEL_RESTART_OOM TSRMLS_CC);
    1111             :                         }
    1112             :                 }
    1113             :         }
    1114           0 : }
    1115             : 
    1116         422 : static zend_persistent_script *cache_script_in_shared_memory(zend_persistent_script *new_persistent_script, char *key, unsigned int key_length, int *from_shared_memory TSRMLS_DC)
    1117             : {
    1118             :         zend_accel_hash_entry *bucket;
    1119             :         uint memory_used;
    1120             : 
    1121             :         /* Check if script may be stored in shared memory */
    1122         422 :         if (!zend_accel_script_persistable(new_persistent_script)) {
    1123           0 :                 return new_persistent_script;
    1124             :         }
    1125             : 
    1126         422 :         if (!zend_accel_script_optimize(new_persistent_script TSRMLS_CC)) {
    1127           0 :                 return new_persistent_script;
    1128             :         }
    1129             : 
    1130             :         /* exclusive lock */
    1131         422 :         zend_shared_alloc_lock(TSRMLS_C);
    1132             : 
    1133         422 :         if (zend_accel_hash_is_full(&ZCSG(hash))) {
    1134           0 :                 zend_accel_error(ACCEL_LOG_DEBUG, "No more entries in hash table!");
    1135           0 :                 ZSMMG(memory_exhausted) = 1;
    1136           0 :                 zend_accel_schedule_restart_if_necessary(ACCEL_RESTART_HASH TSRMLS_CC);
    1137           0 :                 zend_shared_alloc_unlock(TSRMLS_C);
    1138           0 :                 return new_persistent_script;
    1139             :         }
    1140             : 
    1141             :         /* Check if we still need to put the file into the cache (may be it was
    1142             :          * already stored by another process. This final check is done under
    1143             :          * exclusive lock) */
    1144         422 :         bucket = zend_accel_hash_find_entry(&ZCSG(hash), new_persistent_script->full_path->val, new_persistent_script->full_path->len);
    1145         422 :         if (bucket) {
    1146           0 :                 zend_persistent_script *existing_persistent_script = (zend_persistent_script *)bucket->data;
    1147             : 
    1148           0 :                 if (!existing_persistent_script->corrupted) {
    1149           0 :                         if (!ZCG(accel_directives).revalidate_path &&
    1150           0 :                             (!ZCG(accel_directives).validate_timestamps ||
    1151           0 :                              (new_persistent_script->timestamp == existing_persistent_script->timestamp))) {
    1152           0 :                                 zend_accel_add_key(key, key_length, bucket TSRMLS_CC);
    1153             :                         }
    1154           0 :                         zend_shared_alloc_unlock(TSRMLS_C);
    1155           0 :                         return new_persistent_script;
    1156             :                 }
    1157             :         }
    1158             : 
    1159             :         /* Calculate the required memory size */
    1160         422 :         memory_used = zend_accel_script_persist_calc(new_persistent_script, key, key_length TSRMLS_CC);
    1161             : 
    1162             :         /* Allocate shared memory */
    1163         422 :         ZCG(mem) = zend_shared_alloc(memory_used);
    1164         422 :         if (!ZCG(mem)) {
    1165           0 :                 zend_accel_schedule_restart_if_necessary(ACCEL_RESTART_OOM TSRMLS_CC);
    1166           0 :                 zend_shared_alloc_unlock(TSRMLS_C);
    1167           0 :                 return new_persistent_script;
    1168             :         }
    1169             : 
    1170             :         /* Copy into shared memory */
    1171         422 :         new_persistent_script = zend_accel_script_persist(new_persistent_script, &key, key_length TSRMLS_CC);
    1172             : 
    1173             :         /* Consistency check */
    1174         422 :         if ((char*)new_persistent_script->mem + new_persistent_script->size != (char*)ZCG(mem)) {
    1175           0 :                 zend_accel_error(
    1176           0 :                         ((char*)new_persistent_script->mem + new_persistent_script->size < (char*)ZCG(mem)) ? ACCEL_LOG_ERROR : ACCEL_LOG_WARNING,
    1177             :                         "Internal error: wrong size calculation: %s start=0x%08x, end=0x%08x, real=0x%08x\n",
    1178           0 :                         new_persistent_script->full_path->val,
    1179             :                         new_persistent_script->mem,
    1180             :                         (char *)new_persistent_script->mem + new_persistent_script->size,
    1181             :                         ZCG(mem));
    1182             :         }
    1183             : 
    1184         422 :         new_persistent_script->dynamic_members.checksum = zend_accel_script_checksum(new_persistent_script);
    1185             : 
    1186             :         /* store script structure in the hash table */
    1187         422 :         bucket = zend_accel_hash_update(&ZCSG(hash), new_persistent_script->full_path->val, new_persistent_script->full_path->len, 0, new_persistent_script);
    1188         422 :         if (bucket) {
    1189         422 :                 zend_accel_error(ACCEL_LOG_INFO, "Cached script '%s'", new_persistent_script->full_path);
    1190        1614 :                 if (!ZCG(accel_directives).revalidate_path &&
    1191             :                     /* key may contain non-persistent PHAR aliases (see issues #115 and #149) */
    1192         422 :                     memcmp(key, "phar://", sizeof("phar://") - 1) != 0 &&
    1193         395 :                     (new_persistent_script->full_path->len != key_length ||
    1194         375 :                      memcmp(new_persistent_script->full_path->val, key, key_length) != 0)) {
    1195             :                         /* link key to the same persistent script in hash table */
    1196          20 :                         if (zend_accel_hash_update(&ZCSG(hash), key, key_length, 1, bucket)) {
    1197          20 :                                 zend_accel_error(ACCEL_LOG_INFO, "Added key '%s'", key);
    1198             :                         } else {
    1199           0 :                                 zend_accel_error(ACCEL_LOG_DEBUG, "No more entries in hash table!");
    1200           0 :                                 ZSMMG(memory_exhausted) = 1;
    1201           0 :                                 zend_accel_schedule_restart_if_necessary(ACCEL_RESTART_HASH TSRMLS_CC);
    1202             :                         }
    1203             :                 }
    1204             :         }
    1205             : 
    1206         422 :         new_persistent_script->dynamic_members.memory_consumption = ZEND_ALIGNED_SIZE(new_persistent_script->size);
    1207             : 
    1208         422 :         zend_shared_alloc_unlock(TSRMLS_C);
    1209             : 
    1210         422 :         *from_shared_memory = 1;
    1211         422 :         return new_persistent_script;
    1212             : }
    1213             : 
    1214             : static const struct jit_auto_global_info
    1215             : {
    1216             :     const char *name;
    1217             :     size_t len;
    1218             : } jit_auto_globals_info[] = {
    1219             :     { "_SERVER",  sizeof("_SERVER")-1},
    1220             :     { "_ENV",     sizeof("_ENV")-1},
    1221             :     { "_REQUEST", sizeof("_REQUEST")-1},
    1222             :     { "GLOBALS",  sizeof("GLOBALS")-1},
    1223             : };
    1224             : 
    1225             : static zend_string *jit_auto_globals_str[4];
    1226             : 
    1227         422 : static int zend_accel_get_auto_globals(TSRMLS_D)
    1228             : {
    1229         422 :         int i, ag_size = (sizeof(jit_auto_globals_info) / sizeof(jit_auto_globals_info[0]));
    1230         422 :         int n = 1;
    1231         422 :         int mask = 0;
    1232             : 
    1233        2110 :         for (i = 0; i < ag_size ; i++) {
    1234        1688 :                 if (zend_hash_exists(&EG(symbol_table).ht, jit_auto_globals_str[i])) {
    1235         246 :                         mask |= n;
    1236             :                 }
    1237        1688 :                 n += n;
    1238             :         }
    1239         422 :         return mask;
    1240             : }
    1241             : 
    1242           0 : static int zend_accel_get_auto_globals_no_jit(TSRMLS_D)
    1243             : {
    1244           0 :         if (zend_hash_exists(&EG(symbol_table).ht, jit_auto_globals_str[3])) {
    1245           0 :                 return 8;
    1246             :         }
    1247           0 :         return 0;
    1248             : }
    1249             : 
    1250         130 : static void zend_accel_set_auto_globals(int mask TSRMLS_DC)
    1251             : {
    1252         130 :         int i, ag_size = (sizeof(jit_auto_globals_info) / sizeof(jit_auto_globals_info[0]));
    1253         130 :         int n = 1;
    1254             : 
    1255         650 :         for (i = 0; i < ag_size ; i++) {
    1256         520 :                 if ((mask & n) && !(ZCG(auto_globals_mask) & n)) {
    1257         193 :                         ZCG(auto_globals_mask) |= n;
    1258         193 :                         zend_is_auto_global(jit_auto_globals_str[i] TSRMLS_CC);
    1259             :                 }
    1260         520 :                 n += n;
    1261             :         }
    1262         130 : }
    1263             : 
    1264         368 : static void zend_accel_init_auto_globals(TSRMLS_D)
    1265             : {
    1266         368 :         int i, ag_size = (sizeof(jit_auto_globals_info) / sizeof(jit_auto_globals_info[0]));
    1267             : 
    1268        1840 :         for (i = 0; i < ag_size ; i++) {
    1269        2944 :                 jit_auto_globals_str[i] = zend_string_init(jit_auto_globals_info[i].name, jit_auto_globals_info[i].len, 1);
    1270        1472 :                 zend_string_hash_val(jit_auto_globals_str[i]);
    1271        1472 :                 jit_auto_globals_str[i] = accel_new_interned_string(jit_auto_globals_str[i] TSRMLS_CC);
    1272             :         }
    1273         368 : }
    1274             : 
    1275         423 : static zend_persistent_script *compile_and_cache_file(zend_file_handle *file_handle, int type, char *key, unsigned int key_length, zend_op_array **op_array_p, int *from_shared_memory TSRMLS_DC)
    1276             : {
    1277             :         zend_persistent_script *new_persistent_script;
    1278             :         zend_op_array *orig_active_op_array;
    1279             :         HashTable *orig_function_table, *orig_class_table;
    1280             :         zval orig_user_error_handler;
    1281             :         zend_op_array *op_array;
    1282         423 :         int do_bailout = 0;
    1283         423 :         accel_time_t timestamp = 0;
    1284         423 :         uint32_t orig_compiler_options = 0;
    1285             : 
    1286             :     /* Try to open file */
    1287         423 :     if (file_handle->type == ZEND_HANDLE_FILENAME) {
    1288           0 :         if (accelerator_orig_zend_stream_open_function(file_handle->filename, file_handle TSRMLS_CC) == SUCCESS) {
    1289             :                 /* key may be changed by zend_stream_open_function() */
    1290           0 :                 if (key == ZCG(key)) {
    1291           0 :                         key_length = ZCG(key_len);
    1292             :                 }
    1293             :         } else {
    1294           0 :                         *op_array_p = NULL;
    1295           0 :                         if (type == ZEND_REQUIRE) {
    1296           0 :                                 zend_message_dispatcher(ZMSG_FAILED_REQUIRE_FOPEN, file_handle->filename TSRMLS_CC);
    1297           0 :                                 zend_bailout();
    1298             :                         } else {
    1299           0 :                                 zend_message_dispatcher(ZMSG_FAILED_INCLUDE_FOPEN, file_handle->filename TSRMLS_CC);
    1300             :                         }
    1301           0 :                         return NULL;
    1302             :         }
    1303             :     }
    1304             : 
    1305             :         /* check blacklist right after ensuring that file was opened */
    1306         423 :         if (file_handle->opened_path && zend_accel_blacklist_is_blacklisted(&accel_blacklist, file_handle->opened_path)) {
    1307           0 :                 ZCSG(blacklist_misses)++;
    1308           0 :                 *op_array_p = accelerator_orig_compile_file(file_handle, type TSRMLS_CC);
    1309           0 :                 return NULL;
    1310             :         }
    1311             : 
    1312         466 :         if (file_handle->type == ZEND_HANDLE_STREAM &&
    1313          35 :             (!strstr(file_handle->filename, ".phar") ||
    1314           8 :              strstr(file_handle->filename, "://"))) {
    1315             :                 char *buf;
    1316             :                 size_t size;
    1317             : 
    1318             :                 /* Stream callbacks needs to be called in context of original
    1319             :                  * function and class tables (see: https://bugs.php.net/bug.php?id=64353)
    1320             :                  */
    1321          34 :                 if (zend_stream_fixup(file_handle, &buf, &size TSRMLS_CC) == FAILURE) {
    1322           0 :                         *op_array_p = NULL;
    1323           0 :                         return NULL;
    1324             :                 }
    1325             :         }
    1326             : 
    1327         423 :         if (ZCG(accel_directives).validate_timestamps ||
    1328           0 :             ZCG(accel_directives).file_update_protection ||
    1329           0 :             ZCG(accel_directives).max_file_size > 0) {
    1330         423 :                 size_t size = 0;
    1331             : 
    1332             :                 /* Obtain the file timestamps, *before* actually compiling them,
    1333             :                  * otherwise we have a race-condition.
    1334             :                  */
    1335         423 :                 timestamp = zend_get_file_handle_timestamp(file_handle, ZCG(accel_directives).max_file_size > 0 ? &size : NULL TSRMLS_CC);
    1336             : 
    1337             :                 /* If we can't obtain a timestamp (that means file is possibly socket)
    1338             :                  *  we won't cache it
    1339             :                  */
    1340         423 :                 if (timestamp == 0) {
    1341           0 :                         *op_array_p = accelerator_orig_compile_file(file_handle, type TSRMLS_CC);
    1342           0 :                         return NULL;
    1343             :                 }
    1344             : 
    1345             :                 /* check if file is too new (may be it's not written completely yet) */
    1346         423 :                 if (ZCG(accel_directives).file_update_protection &&
    1347           0 :                     (ZCG(request_time) - ZCG(accel_directives).file_update_protection < timestamp)) {
    1348           0 :                         *op_array_p = accelerator_orig_compile_file(file_handle, type TSRMLS_CC);
    1349           0 :                         return NULL;
    1350             :                 }
    1351             : 
    1352         423 :                 if (ZCG(accel_directives).max_file_size > 0 && size > (size_t)ZCG(accel_directives).max_file_size) {
    1353           0 :                         ZCSG(blacklist_misses)++;
    1354           0 :                         *op_array_p = accelerator_orig_compile_file(file_handle, type TSRMLS_CC);
    1355           0 :                         return NULL;
    1356             :                 }
    1357             :         }
    1358             : 
    1359         423 :         new_persistent_script = create_persistent_script();
    1360             : 
    1361             :         /* Save the original values for the op_array, function table and class table */
    1362         423 :         orig_active_op_array = CG(active_op_array);
    1363         423 :         orig_function_table = CG(function_table);
    1364         423 :         orig_class_table = CG(class_table);
    1365         423 :         ZVAL_COPY_VALUE(&orig_user_error_handler, &EG(user_error_handler));
    1366             : 
    1367             :         /* Override them with ours */
    1368         423 :         CG(function_table) = &ZCG(function_table);
    1369         423 :         EG(class_table) = CG(class_table) = &new_persistent_script->class_table;
    1370         423 :         ZVAL_UNDEF(&EG(user_error_handler));
    1371             : 
    1372         423 :         zend_try {
    1373         423 :                 orig_compiler_options = CG(compiler_options);
    1374         423 :                 CG(compiler_options) |= ZEND_COMPILE_HANDLE_OP_ARRAY;
    1375         423 :                 CG(compiler_options) |= ZEND_COMPILE_IGNORE_INTERNAL_CLASSES;
    1376         423 :                 CG(compiler_options) |= ZEND_COMPILE_DELAYED_BINDING;
    1377         423 :                 CG(compiler_options) |= ZEND_COMPILE_NO_CONSTANT_SUBSTITUTION;
    1378         423 :                 op_array = *op_array_p = accelerator_orig_compile_file(file_handle, type TSRMLS_CC);
    1379         422 :                 CG(compiler_options) = orig_compiler_options;
    1380           1 :         } zend_catch {
    1381           1 :                 op_array = NULL;
    1382           1 :                 do_bailout = 1;
    1383           1 :                 CG(compiler_options) = orig_compiler_options;
    1384         423 :         } zend_end_try();
    1385             : 
    1386             :         /* Restore originals */
    1387         423 :         CG(active_op_array) = orig_active_op_array;
    1388         423 :         CG(function_table) = orig_function_table;
    1389         423 :         EG(class_table) = CG(class_table) = orig_class_table;
    1390         423 :         EG(user_error_handler) = orig_user_error_handler;
    1391             : 
    1392         423 :         if (!op_array) {
    1393             :                 /* compilation failed */
    1394           1 :                 free_persistent_script(new_persistent_script, 1);
    1395           1 :                 zend_accel_free_user_functions(&ZCG(function_table) TSRMLS_CC);
    1396           1 :                 if (do_bailout) {
    1397           1 :                         zend_bailout();
    1398             :                 }
    1399           0 :                 return NULL;
    1400             :         }
    1401             : 
    1402             :         /* Build the persistent_script structure.
    1403             :            Here we aren't sure we would store it, but we will need it
    1404             :            further anyway.
    1405             :         */
    1406         422 :         zend_accel_move_user_functions(&ZCG(function_table), &new_persistent_script->function_table TSRMLS_CC);
    1407         422 :         new_persistent_script->main_op_array = *op_array;
    1408             : 
    1409         422 :         efree(op_array); /* we have valid persistent_script, so it's safe to free op_array */
    1410             : 
    1411             :     /* Fill in the ping_auto_globals_mask for the new script. If jit for auto globals is enabled we
    1412             :        will have to ping the used auto global variables before execution */
    1413         422 :         if (PG(auto_globals_jit)) {
    1414         422 :                 new_persistent_script->ping_auto_globals_mask = zend_accel_get_auto_globals(TSRMLS_C);
    1415             :         } else {
    1416           0 :                 new_persistent_script->ping_auto_globals_mask = zend_accel_get_auto_globals_no_jit(TSRMLS_C);
    1417             :         }
    1418             : 
    1419         422 :         if (ZCG(accel_directives).validate_timestamps) {
    1420             :                 /* Obtain the file timestamps, *before* actually compiling them,
    1421             :                  * otherwise we have a race-condition.
    1422             :                  */
    1423         422 :                 new_persistent_script->timestamp = timestamp;
    1424         422 :                 new_persistent_script->dynamic_members.revalidate = ZCG(request_time) + ZCG(accel_directives).revalidate_freq;
    1425             :         }
    1426             : 
    1427         422 :         if (file_handle->opened_path) {
    1428         844 :                 new_persistent_script->full_path = zend_string_init(file_handle->opened_path, strlen(file_handle->opened_path), 0);
    1429             :         } else {
    1430           0 :                 new_persistent_script->full_path = zend_string_init(file_handle->filename, strlen(file_handle->filename), 0);
    1431             :         }
    1432         422 :         zend_string_hash_val(new_persistent_script->full_path);
    1433             : 
    1434             :         /* Now persistent_script structure is ready in process memory */
    1435         422 :         return cache_script_in_shared_memory(new_persistent_script, key, key_length, from_shared_memory TSRMLS_CC);
    1436             : }
    1437             : 
    1438             : /* zend_compile() replacement */
    1439         425 : zend_op_array *persistent_compile_file(zend_file_handle *file_handle, int type TSRMLS_DC)
    1440             : {
    1441         425 :         zend_persistent_script *persistent_script = NULL;
    1442         425 :         char *key = NULL;
    1443             :         int key_length;
    1444             :         int from_shared_memory; /* if the script we've got is stored in SHM */
    1445             : 
    1446        2946 :         if (!file_handle->filename ||
    1447         850 :                 !ZCG(enabled) || !accel_startup_ok ||
    1448         793 :                 (!ZCG(counted) && !ZCSG(accelerator_enabled)) ||
    1449         425 :             (ZCSG(restart_in_progress) && accel_restart_is_active(TSRMLS_C)) ||
    1450         425 :             (is_stream_path(file_handle->filename) && 
    1451          28 :              !is_cacheable_stream_path(file_handle->filename))) {
    1452             :                 /* The Accelerator is disabled, act as if without the Accelerator */
    1453           0 :                 return accelerator_orig_compile_file(file_handle, type TSRMLS_CC);
    1454             :         }
    1455             : 
    1456             :         /* Make sure we only increase the currently running processes semaphore
    1457             :      * once each execution (this function can be called more than once on
    1458             :      * each execution)
    1459             :      */
    1460         425 :         if (!ZCG(counted)) {
    1461         368 :                 ZCG(counted) = 1;
    1462         368 :                 accel_activate_add(TSRMLS_C);
    1463             :         }
    1464             : 
    1465             :         /* In case this callback is called from include_once, require_once or it's
    1466             :          * a main FastCGI request, the key must be already calculated, and cached
    1467             :          * persistent script already found */
    1468        2096 :         if ((EG(current_execute_data) == NULL &&
    1469         368 :              ZCG(cache_opline) == NULL &&
    1470         368 :              file_handle->filename == SG(request_info).path_translated &&
    1471         366 :              ZCG(cache_persistent_script)) ||
    1472         425 :             (EG(current_execute_data) &&
    1473          57 :              EG(current_execute_data)->func &&
    1474          57 :              ZEND_USER_CODE(EG(current_execute_data)->func->common.type) &&
    1475          30 :              EG(current_execute_data)->opline == ZCG(cache_opline) &&
    1476           0 :              EG(current_execute_data)->opline->opcode == ZEND_INCLUDE_OR_EVAL &&
    1477           0 :              (EG(current_execute_data)->opline->extended_value == ZEND_INCLUDE_ONCE ||
    1478           0 :               EG(current_execute_data)->opline->extended_value == ZEND_REQUIRE_ONCE))) {
    1479           0 :                 if (!ZCG(key_len)) {
    1480           0 :                         return accelerator_orig_compile_file(file_handle, type TSRMLS_CC);
    1481             :                 }
    1482             :                 /* persistent script was already found by overridden open() or
    1483             :                  * resolve_path() callbacks */
    1484           0 :                 persistent_script = ZCG(cache_persistent_script);
    1485           0 :                 key = ZCG(key);
    1486           0 :                 key_length = ZCG(key_len);
    1487             :         } else {
    1488             :                 /* try to find cached script by key */
    1489         425 :                 if ((key = accel_make_persistent_key(file_handle, &key_length TSRMLS_CC)) == NULL) {
    1490           0 :                         return accelerator_orig_compile_file(file_handle, type TSRMLS_CC);
    1491             :                 }
    1492         425 :                 persistent_script = zend_accel_hash_find(&ZCSG(hash), key, key_length);
    1493         425 :                 if (!persistent_script) {
    1494             :                         /* try to find cached script by full real path */
    1495             :                         zend_accel_hash_entry *bucket;
    1496             : 
    1497             :                         /* open file to resolve the path */
    1498         475 :                     if (file_handle->type == ZEND_HANDLE_FILENAME &&
    1499          50 :                         accelerator_orig_zend_stream_open_function(file_handle->filename, file_handle TSRMLS_CC) == FAILURE) {
    1500           2 :                                 if (type == ZEND_REQUIRE) {
    1501           0 :                                         zend_message_dispatcher(ZMSG_FAILED_REQUIRE_FOPEN, file_handle->filename TSRMLS_CC);
    1502           0 :                                         zend_bailout();
    1503             :                                 } else {
    1504           2 :                                         zend_message_dispatcher(ZMSG_FAILED_INCLUDE_FOPEN, file_handle->filename TSRMLS_CC);
    1505             :                                 }
    1506           2 :                                 return NULL;
    1507             :                     }
    1508             : 
    1509         846 :                         if (file_handle->opened_path &&
    1510         423 :                             (bucket = zend_accel_hash_find_entry(&ZCSG(hash), file_handle->opened_path, strlen(file_handle->opened_path))) != NULL) {
    1511             : 
    1512           0 :                                 persistent_script = (zend_persistent_script *)bucket->data;
    1513           0 :                                 if (!ZCG(accel_directives).revalidate_path &&
    1514           0 :                                     !persistent_script->corrupted) {
    1515           0 :                                 SHM_UNPROTECT();
    1516           0 :                                         zend_shared_alloc_lock(TSRMLS_C);
    1517           0 :                                         zend_accel_add_key(key, key_length, bucket TSRMLS_CC);
    1518           0 :                                         zend_shared_alloc_unlock(TSRMLS_C);
    1519           0 :                                 SHM_PROTECT();
    1520             :                                 }
    1521             :                         }
    1522             :                 }
    1523             :         }
    1524             : 
    1525             :         /* clear cache */
    1526         423 :         ZCG(cache_opline) = NULL;
    1527         423 :         ZCG(cache_persistent_script) = NULL;
    1528             : 
    1529         423 :         if (persistent_script && persistent_script->corrupted) {
    1530           0 :                 persistent_script = NULL;
    1531             :         }
    1532             : 
    1533         423 :         SHM_UNPROTECT();
    1534             : 
    1535             :         /* If script is found then validate_timestamps if option is enabled */
    1536         423 :         if (persistent_script && ZCG(accel_directives).validate_timestamps) {
    1537           0 :                 if (validate_timestamp_and_record(persistent_script, file_handle TSRMLS_CC) == FAILURE) {
    1538           0 :                         zend_shared_alloc_lock(TSRMLS_C);
    1539           0 :                         if (!persistent_script->corrupted) {
    1540           0 :                                 persistent_script->corrupted = 1;
    1541           0 :                                 persistent_script->timestamp = 0;
    1542           0 :                                 ZSMMG(wasted_shared_memory) += persistent_script->dynamic_members.memory_consumption;
    1543           0 :                                 if (ZSMMG(memory_exhausted)) {
    1544             :                                         zend_accel_restart_reason reason =
    1545           0 :                                                 zend_accel_hash_is_full(&ZCSG(hash)) ? ACCEL_RESTART_HASH : ACCEL_RESTART_OOM;
    1546           0 :                                         zend_accel_schedule_restart_if_necessary(reason TSRMLS_CC);
    1547             :                                 }
    1548             :                         }
    1549           0 :                         zend_shared_alloc_unlock(TSRMLS_C);
    1550           0 :                         persistent_script = NULL;
    1551             :                 }
    1552             :         }
    1553             : 
    1554             :         /* if turned on - check the compiled script ADLER32 checksum */
    1555         423 :         if (persistent_script && ZCG(accel_directives).consistency_checks
    1556           0 :                 && persistent_script->dynamic_members.hits % ZCG(accel_directives).consistency_checks == 0) {
    1557             : 
    1558           0 :                 unsigned int checksum = zend_accel_script_checksum(persistent_script);
    1559           0 :                 if (checksum != persistent_script->dynamic_members.checksum ) {
    1560             :                         /* The checksum is wrong */
    1561           0 :                         zend_accel_error(ACCEL_LOG_INFO, "Checksum failed for '%s':  expected=0x%0.8X, found=0x%0.8X",
    1562             :                                                          persistent_script->full_path, persistent_script->dynamic_members.checksum, checksum);
    1563           0 :                         zend_shared_alloc_lock(TSRMLS_C);
    1564           0 :                         if (!persistent_script->corrupted) {
    1565           0 :                                 persistent_script->corrupted = 1;
    1566           0 :                                 persistent_script->timestamp = 0;
    1567           0 :                                 ZSMMG(wasted_shared_memory) += persistent_script->dynamic_members.memory_consumption;
    1568           0 :                                 if (ZSMMG(memory_exhausted)) {
    1569             :                                         zend_accel_restart_reason reason =
    1570           0 :                                                 zend_accel_hash_is_full(&ZCSG(hash)) ? ACCEL_RESTART_HASH : ACCEL_RESTART_OOM;
    1571           0 :                                         zend_accel_schedule_restart_if_necessary(reason TSRMLS_CC);
    1572             :                                 }
    1573             :                         }
    1574           0 :                         zend_shared_alloc_unlock(TSRMLS_C);
    1575           0 :                         persistent_script = NULL;
    1576             :                 }
    1577             :         }
    1578             : 
    1579             :         /* If script was not found or invalidated by validate_timestamps */
    1580         423 :         if (!persistent_script) {
    1581         423 :                 uint32_t old_const_num = zend_hash_next_free_element(EG(zend_constants));
    1582             :                 zend_op_array *op_array;
    1583             : 
    1584             :                 /* Cache miss.. */
    1585         423 :                 ZCSG(misses)++;
    1586             : 
    1587             :                 /* No memory left. Behave like without the Accelerator */
    1588         423 :                 if (ZSMMG(memory_exhausted) || ZCSG(restart_pending)) {
    1589           0 :                         SHM_PROTECT();
    1590           0 :                         return accelerator_orig_compile_file(file_handle, type TSRMLS_CC);
    1591             :                 }
    1592             : 
    1593             :                 /* Try and cache the script and assume that it is returned from_shared_memory.
    1594             :          * If it isn't compile_and_cache_file() changes the flag to 0
    1595             :          */
    1596         423 :         from_shared_memory = 0;
    1597         423 :                 persistent_script = compile_and_cache_file(file_handle, type, key, key_length, &op_array, &from_shared_memory TSRMLS_CC);
    1598             : 
    1599             :                 /* Caching is disabled, returning op_array;
    1600             :                  * or something went wrong during compilation, returning NULL
    1601             :                  */
    1602         422 :                 if (!persistent_script) {
    1603           0 :                         SHM_PROTECT();
    1604           0 :                         return op_array;
    1605             :                 }
    1606         422 :                 if (from_shared_memory) {
    1607             :                         /* Delete immutable arrays moved into SHM */
    1608         422 :                         uint32_t new_const_num = zend_hash_next_free_element(EG(zend_constants));
    1609         844 :                         while (new_const_num > old_const_num) {
    1610           0 :                                 new_const_num--;
    1611           0 :                                 zend_hash_index_del(EG(zend_constants), new_const_num);
    1612             :                         }
    1613             :                 }
    1614             :         } else {
    1615             : 
    1616             : #if !ZEND_WIN32
    1617           0 :                 ZCSG(hits)++; /* TBFixed: may lose one hit */
    1618           0 :                 persistent_script->dynamic_members.hits++; /* see above */
    1619             : #else
    1620             :                 INCREMENT(hits);
    1621             :                 InterlockedIncrement64(&persistent_script->dynamic_members.hits);
    1622             : #endif
    1623             : 
    1624             :                 /* see bug #15471 (old BTS) */
    1625           0 :                 if (persistent_script->full_path) {
    1626           0 :                         if (!EG(current_execute_data) || !EG(current_execute_data)->opline ||
    1627           0 :                             !EG(current_execute_data)->func ||
    1628           0 :                             !ZEND_USER_CODE(EG(current_execute_data)->func->common.type) ||
    1629           0 :                             EG(current_execute_data)->opline->opcode != ZEND_INCLUDE_OR_EVAL ||
    1630           0 :                             (EG(current_execute_data)->opline->extended_value != ZEND_INCLUDE_ONCE &&
    1631           0 :                              EG(current_execute_data)->opline->extended_value != ZEND_REQUIRE_ONCE)) {
    1632           0 :                                 if (zend_hash_add_empty_element(&EG(included_files), persistent_script->full_path) != NULL) {
    1633             :                                         /* ext/phar has to load phar's metadata into memory */
    1634           0 :                                         if (strstr(persistent_script->full_path->val, ".phar") && !strstr(persistent_script->full_path->val, "://")) {
    1635             :                                                 php_stream_statbuf ssb;
    1636           0 :                                                 char *fname = emalloc(sizeof("phar://") + persistent_script->full_path->len);
    1637             : 
    1638           0 :                                                 memcpy(fname, "phar://", sizeof("phar://") - 1);
    1639           0 :                                                 memcpy(fname + sizeof("phar://") - 1, persistent_script->full_path->val, persistent_script->full_path->len + 1);
    1640           0 :                                                 php_stream_stat_path(fname, &ssb);
    1641           0 :                                                 efree(fname);
    1642             :                                         }
    1643             :                                 }
    1644             :                         }
    1645             :                 }
    1646           0 :                 zend_file_handle_dtor(file_handle TSRMLS_CC);
    1647           0 :                 from_shared_memory = 1;
    1648             :         }
    1649             : 
    1650         422 :         persistent_script->dynamic_members.last_used = ZCG(request_time);
    1651             : 
    1652         422 :         SHM_PROTECT();
    1653             : 
    1654             :     /* Fetch jit auto globals used in the script before execution */
    1655         422 :     if (persistent_script->ping_auto_globals_mask) {
    1656         130 :                 zend_accel_set_auto_globals(persistent_script->ping_auto_globals_mask TSRMLS_CC);
    1657             :         }
    1658             : 
    1659         422 :         return zend_accel_load_script(persistent_script, from_shared_memory TSRMLS_CC);
    1660             : }
    1661             : 
    1662             : /* zend_stream_open_function() replacement for PHP 5.3 and above */
    1663         419 : static int persistent_stream_open_function(const char *filename, zend_file_handle *handle TSRMLS_DC)
    1664             : {
    1665        1623 :         if (ZCG(enabled) && accel_startup_ok &&
    1666         785 :             (ZCG(counted) || ZCSG(accelerator_enabled)) &&
    1667         419 :             !ZCSG(restart_in_progress)) {
    1668             : 
    1669             :                 /* check if callback is called from include_once or it's a main request */
    1670         931 :                 if ((!EG(current_execute_data) &&
    1671         400 :                      filename == SG(request_info).path_translated) ||
    1672          53 :                     (EG(current_execute_data) &&
    1673          19 :                      EG(current_execute_data)->func &&
    1674          19 :                      ZEND_USER_CODE(EG(current_execute_data)->func->common.type) &&
    1675           7 :              EG(current_execute_data)->opline->opcode == ZEND_INCLUDE_OR_EVAL &&
    1676           7 :              (EG(current_execute_data)->opline->extended_value == ZEND_INCLUDE_ONCE ||
    1677           7 :               EG(current_execute_data)->opline->extended_value == ZEND_REQUIRE_ONCE))) {
    1678             :                         /* we are in include_once or FastCGI request */
    1679             :                         zend_persistent_script *persistent_script;
    1680             : 
    1681         373 :                         handle->filename = (char*)filename;
    1682         373 :                         handle->free_filename = 0;
    1683             : 
    1684             :                         /* check if cached script was already found by resolve_path() */
    1685        1485 :                         if ((EG(current_execute_data) == NULL &&
    1686         366 :                              ZCG(cache_opline) == NULL &&
    1687         366 :                              ZCG(cache_persistent_script) != NULL) ||
    1688         373 :                             (EG(current_execute_data) &&
    1689           7 :                              (ZCG(cache_opline) == EG(current_execute_data)->opline))) {
    1690           0 :                                 persistent_script = ZCG(cache_persistent_script);
    1691           0 :                                 handle->opened_path = estrndup(persistent_script->full_path->val, persistent_script->full_path->len);
    1692           0 :                                 handle->type = ZEND_HANDLE_FILENAME;
    1693           0 :                                 return SUCCESS;
    1694             : #if 0
    1695             :                         } else {
    1696             :                                 /* FIXME: It looks like this part is not needed any more */
    1697             :                                 int filename_len = strlen(filename);
    1698             : 
    1699             :                             if ((IS_ABSOLUTE_PATH(filename, filename_len) ||
    1700             :                                  is_stream_path(filename)) &&
    1701             :                                     (persistent_script = zend_accel_hash_find(&ZCSG(hash), (char*)filename, filename_len)) != NULL &&
    1702             :                                     !persistent_script->corrupted) {
    1703             : 
    1704             :                                         handle->opened_path = estrndup(persistent_script->full_path, persistent_script->full_path_len);
    1705             :                                         handle->type = ZEND_HANDLE_FILENAME;
    1706             :                                         memcpy(ZCG(key), persistent_script->full_path, persistent_script->full_path_len + 1);
    1707             :                                         ZCG(key_len) = persistent_script->full_path_len;
    1708             :                                         ZCG(cache_opline) = EG(current_execute_data) ? EG(current_execute_data)->opline : NULL;
    1709             :                                         ZCG(cache_persistent_script) = EG(current_execute_data) ? persistent_script : NULL;
    1710             :                                         return SUCCESS;
    1711             :                             }
    1712             : #endif
    1713             :                         }
    1714             :                 }
    1715             :         }
    1716         419 :         ZCG(cache_opline) = NULL;
    1717         419 :         ZCG(cache_persistent_script) = NULL;
    1718         419 :         return accelerator_orig_zend_stream_open_function(filename, handle TSRMLS_CC);
    1719             : }
    1720             : 
    1721             : /* zend_resolve_path() replacement for PHP 5.3 and above */
    1722         842 : static char* persistent_zend_resolve_path(const char *filename, int filename_len TSRMLS_DC)
    1723             : {
    1724        3258 :         if (ZCG(enabled) && accel_startup_ok &&
    1725        1574 :             (ZCG(counted) || ZCSG(accelerator_enabled)) &&
    1726         842 :             !ZCSG(restart_in_progress)) {
    1727             : 
    1728             :                 /* check if callback is called from include_once or it's a main request */
    1729        1981 :                 if ((!EG(current_execute_data) &&
    1730         766 :                      filename == SG(request_info).path_translated) ||
    1731         110 :                     (EG(current_execute_data) &&
    1732          76 :                      EG(current_execute_data)->func &&
    1733          76 :                      ZEND_USER_CODE(EG(current_execute_data)->func->common.type) &&
    1734          37 :              EG(current_execute_data)->opline->opcode == ZEND_INCLUDE_OR_EVAL &&
    1735          37 :              (EG(current_execute_data)->opline->extended_value == ZEND_INCLUDE_ONCE ||
    1736          37 :               EG(current_execute_data)->opline->extended_value == ZEND_REQUIRE_ONCE))) {
    1737             :                         /* we are in include_once or FastCGI request */
    1738             :                         zend_file_handle handle;
    1739         746 :                         char *key = NULL;
    1740             :                         int key_length;
    1741             :                         char *resolved_path;
    1742             :                         zend_accel_hash_entry *bucket;
    1743             :                         zend_persistent_script *persistent_script;
    1744             : 
    1745             :                     /* Check if requested file already cached (by full name) */
    1746        1492 :                     if ((IS_ABSOLUTE_PATH(filename, filename_len) ||
    1747           7 :                          is_stream_path(filename)) &&
    1748         739 :                             (bucket = zend_accel_hash_find_entry(&ZCSG(hash), (char*)filename, filename_len)) != NULL) {
    1749           0 :                                 persistent_script = (zend_persistent_script *)bucket->data;
    1750           0 :                                 if (persistent_script && !persistent_script->corrupted) {
    1751           0 :                                         memcpy(ZCG(key), persistent_script->full_path->val, persistent_script->full_path->len + 1);
    1752           0 :                                         ZCG(key_len) = persistent_script->full_path->len;
    1753           0 :                                         ZCG(cache_opline) = EG(current_execute_data) ? EG(current_execute_data)->opline : NULL;
    1754           0 :                                         ZCG(cache_persistent_script) = persistent_script;
    1755           0 :                                         return estrndup(persistent_script->full_path->val, persistent_script->full_path->len);
    1756             :                                 }
    1757             :                     }
    1758             : 
    1759             :                     /* Check if requested file already cached (by key) */
    1760         746 :                         handle.filename = (char*)filename;
    1761         746 :                         handle.free_filename = 0;
    1762         746 :                         handle.opened_path = NULL;
    1763         746 :                         key = accel_make_persistent_key_ex(&handle, filename_len, &key_length TSRMLS_CC);
    1764        1492 :                         if (!ZCG(accel_directives).revalidate_path &&
    1765             :                             key &&
    1766         746 :                                 (persistent_script = zend_accel_hash_find(&ZCSG(hash), key, key_length)) != NULL &&
    1767           0 :                             !persistent_script->corrupted) {
    1768             : 
    1769             :                                 /* we have persistent script */
    1770           0 :                                 ZCG(cache_opline) = EG(current_execute_data) ? EG(current_execute_data)->opline : NULL;
    1771           0 :                                 ZCG(cache_persistent_script) = persistent_script;
    1772           0 :                                 return estrndup(persistent_script->full_path->val, persistent_script->full_path->len);
    1773             :                         }
    1774             : 
    1775             :                         /* find the full real path */
    1776         746 :                         resolved_path = accelerator_orig_zend_resolve_path(filename, filename_len TSRMLS_CC);
    1777             : 
    1778             :                     /* Check if requested file already cached (by real path) */
    1779        1492 :                         if (resolved_path &&
    1780         746 :                             (bucket = zend_accel_hash_find_entry(&ZCSG(hash), resolved_path, strlen(resolved_path))) != NULL) {
    1781           0 :                                 persistent_script = (zend_persistent_script *)bucket->data;
    1782             : 
    1783           0 :                                 if (persistent_script && !persistent_script->corrupted) {
    1784           0 :                                         if (key && !ZCG(accel_directives).revalidate_path) {
    1785             :                                                 /* add another "key" for the same bucket */
    1786           0 :                                         SHM_UNPROTECT();
    1787           0 :                                                 zend_shared_alloc_lock(TSRMLS_C);
    1788           0 :                                                 zend_accel_add_key(key, key_length, bucket TSRMLS_CC);
    1789           0 :                                                 zend_shared_alloc_unlock(TSRMLS_C);
    1790           0 :                                         SHM_PROTECT();
    1791             :                                         }
    1792           0 :                                         ZCG(cache_opline) = (EG(current_execute_data) && key) ? EG(current_execute_data)->opline : NULL;
    1793           0 :                                         ZCG(cache_persistent_script) = key ? persistent_script : NULL;
    1794           0 :                                         return resolved_path;
    1795             :                                 }
    1796             :                         }
    1797         746 :                         ZCG(cache_opline) = NULL;
    1798         746 :                         ZCG(cache_persistent_script) = NULL;
    1799         746 :                         return resolved_path;
    1800             :                 }
    1801             :         }
    1802          96 :         ZCG(cache_opline) = NULL;
    1803          96 :         ZCG(cache_persistent_script) = NULL;
    1804          96 :         return accelerator_orig_zend_resolve_path(filename, filename_len TSRMLS_CC);
    1805             : }
    1806             : 
    1807         368 : static void zend_reset_cache_vars(TSRMLS_D)
    1808             : {
    1809         368 :         ZSMMG(memory_exhausted) = 0;
    1810         368 :         ZCSG(hits) = 0;
    1811         368 :         ZCSG(misses) = 0;
    1812         368 :         ZCSG(blacklist_misses) = 0;
    1813         368 :         ZSMMG(wasted_shared_memory) = 0;
    1814         368 :         ZCSG(restart_pending) = 0;
    1815         368 :         ZCSG(force_restart_time) = 0;
    1816         368 : }
    1817             : 
    1818         368 : static void accel_activate(void)
    1819             : {
    1820             :         TSRMLS_FETCH();
    1821             : 
    1822         368 :         if (!ZCG(enabled) || !accel_startup_ok) {
    1823           0 :                 return;
    1824             :         }
    1825             : 
    1826         368 :         SHM_UNPROTECT();
    1827             :         /* PHP-5.4 and above return "double", but we use 1 sec precision */
    1828         368 :         ZCG(auto_globals_mask) = 0;
    1829         368 :         ZCG(request_time) = (time_t)sapi_get_request_time(TSRMLS_C);
    1830         368 :         ZCG(cache_opline) = NULL;
    1831         368 :         ZCG(cache_persistent_script) = NULL;
    1832         368 :         ZCG(include_path_check) = !ZCG(include_path_key);
    1833             : 
    1834         368 :         if (ZCG(counted)) {
    1835             : #ifdef ZTS
    1836             :                 zend_accel_error(ACCEL_LOG_WARNING, "Stuck count for thread id %d", tsrm_thread_id());
    1837             : #else
    1838           0 :                 zend_accel_error(ACCEL_LOG_WARNING, "Stuck count for pid %d", getpid());
    1839             : #endif
    1840           0 :                 accel_unlock_all(TSRMLS_C);
    1841           0 :                 ZCG(counted) = 0;
    1842             :         }
    1843             : 
    1844         368 :         if (ZCSG(restart_pending)) {
    1845           0 :                 zend_shared_alloc_lock(TSRMLS_C);
    1846           0 :                 if (ZCSG(restart_pending) != 0) { /* check again, to ensure that the cache wasn't already cleaned by another process */
    1847           0 :                         if (accel_is_inactive(TSRMLS_C) == SUCCESS) {
    1848           0 :                                 zend_accel_error(ACCEL_LOG_DEBUG, "Restarting!");
    1849           0 :                                 ZCSG(restart_pending) = 0;
    1850           0 :                                 switch ZCSG(restart_reason) {
    1851             :                                         case ACCEL_RESTART_OOM:
    1852           0 :                                                 ZCSG(oom_restarts)++;
    1853           0 :                                                 break;
    1854             :                                         case ACCEL_RESTART_HASH:
    1855           0 :                                                 ZCSG(hash_restarts)++;
    1856           0 :                                                 break;
    1857             :                                         case ACCEL_RESTART_USER:
    1858           0 :                                                 ZCSG(manual_restarts)++;
    1859             :                                                 break;
    1860             :                                 }
    1861           0 :                                 accel_restart_enter(TSRMLS_C);
    1862             : 
    1863           0 :                                 zend_reset_cache_vars(TSRMLS_C);
    1864           0 :                                 zend_accel_hash_clean(&ZCSG(hash));
    1865             : 
    1866             :                                 /* include_paths keeps only the first path */
    1867           0 :                                 if (ZCSG(include_paths).num_entries > 1) {
    1868           0 :                                         ZCSG(include_paths).num_entries = 1;
    1869           0 :                                         ZCSG(include_paths).num_direct_entries = 1;
    1870           0 :                                         memset(ZCSG(include_paths).hash_table, 0, sizeof(zend_accel_hash_entry*) * ZCSG(include_paths).max_num_entries);
    1871           0 :                                         ZCSG(include_paths).hash_table[zend_inline_hash_func(ZCSG(include_paths).hash_entries[0].key, ZCSG(include_paths).hash_entries[0].key_length) % ZCSG(include_paths).max_num_entries] = &ZCSG(include_paths).hash_entries[0];
    1872             :                                 }
    1873             : 
    1874             : #if !defined(ZTS)
    1875           0 :                                 if (ZCG(accel_directives).interned_strings_buffer) {
    1876           0 :                                         accel_interned_strings_restore_state(TSRMLS_C);
    1877             :                                 }
    1878             : #endif
    1879             : 
    1880           0 :                                 zend_shared_alloc_restore_state();
    1881           0 :                                 ZCSG(accelerator_enabled) = ZCSG(cache_status_before_restart);
    1882           0 :                                 ZCSG(last_restart_time) = ZCG(request_time);
    1883           0 :                                 accel_restart_leave(TSRMLS_C);
    1884             :                         }
    1885             :                 }
    1886           0 :                 zend_shared_alloc_unlock(TSRMLS_C);
    1887             :         }
    1888             : 
    1889             :         /* check if ZCG(function_table) wasn't somehow polluted on the way */
    1890         368 :         if (ZCG(internal_functions_count) != zend_hash_num_elements(&ZCG(function_table))) {
    1891           0 :                 zend_accel_error(ACCEL_LOG_WARNING, "Internal functions count changed - was %d, now %d", ZCG(internal_functions_count), zend_hash_num_elements(&ZCG(function_table)));
    1892             :         }
    1893             : 
    1894         368 :         ZCG(cwd) = NULL;
    1895             : 
    1896         368 :         SHM_PROTECT();
    1897             : }
    1898             : 
    1899             : #if !ZEND_DEBUG
    1900             : 
    1901             : /* Fast Request Shutdown
    1902             :  * =====================
    1903             :  * Zend Memory Manager frees memory by its own. We don't have to free each
    1904             :  * allocated block separately, but we like to call all the destructors and
    1905             :  * callbacks in exactly the same order.
    1906             :  */
    1907             : static void accel_fast_zval_dtor(zval *zvalue);
    1908             : 
    1909           0 : static void accel_fast_hash_destroy(HashTable *ht)
    1910             : {
    1911             :         uint idx;
    1912             :         Bucket *p;
    1913             :         
    1914           0 :         for (idx = 0; idx < ht->nNumUsed; idx++) {        
    1915           0 :                 p = ht->arData + idx;
    1916           0 :                 if (Z_TYPE(p->val) == IS_UNDEF) continue;
    1917           0 :                 accel_fast_zval_dtor(&p->val);
    1918             :         }
    1919           0 : }
    1920             : 
    1921           0 : static void accel_fast_zval_dtor(zval *zvalue)
    1922             : {
    1923           0 :         if (Z_REFCOUNTED_P(zvalue) && Z_DELREF_P(zvalue) == 0) {
    1924           0 :                 switch (Z_TYPE_P(zvalue)) {
    1925             :                         case IS_ARRAY: {
    1926             :                                         TSRMLS_FETCH();
    1927           0 :                                         GC_REMOVE_FROM_BUFFER(Z_ARR_P(zvalue));
    1928           0 :                                         if (Z_ARR_P(zvalue) != &EG(symbol_table)) {
    1929             :                                                 /* break possible cycles */
    1930           0 :                                                 ZVAL_NULL(zvalue);
    1931           0 :                                                 accel_fast_hash_destroy(Z_ARRVAL_P(zvalue));
    1932             :                                         }
    1933             :                                 }
    1934           0 :                                 break;
    1935             :                         case IS_OBJECT:
    1936             :                                 {
    1937             :                                         TSRMLS_FETCH();
    1938             : 
    1939           0 :                                         OBJ_RELEASE(Z_OBJ_P(zvalue));
    1940             :                                 }
    1941           0 :                                 break;
    1942             :                         case IS_RESOURCE:
    1943             :                                 {
    1944             :                                         TSRMLS_FETCH();
    1945             : 
    1946             :                                         /* destroy resource */
    1947           0 :                                         zend_list_delete(Z_RES_P(zvalue));
    1948             :                                 }
    1949           0 :                                 break;
    1950             :                         case IS_LONG:
    1951             :                         case IS_DOUBLE:
    1952             :                         case IS_FALSE:
    1953             :                         case IS_TRUE:
    1954             :                         case IS_NULL:
    1955             :                         case IS_STRING:
    1956             :                         case IS_CONSTANT:
    1957             :                         default:
    1958           0 :                                 return;
    1959             :                                 break;
    1960             :                 }
    1961             :         }
    1962             : }
    1963             : 
    1964           0 : static int accel_clean_non_persistent_function(zval *zv TSRMLS_DC)
    1965             : {
    1966           0 :         zend_function *function = Z_PTR_P(zv);
    1967             : 
    1968           0 :         if (function->type == ZEND_INTERNAL_FUNCTION) {
    1969           0 :                 return ZEND_HASH_APPLY_STOP;
    1970             :         } else {
    1971           0 :                 if (function->op_array.static_variables) {
    1972           0 :                         accel_fast_hash_destroy(function->op_array.static_variables);
    1973           0 :                         function->op_array.static_variables = NULL;
    1974             :                 }
    1975           0 :                 return ZEND_HASH_APPLY_REMOVE;
    1976             :         }
    1977             : }
    1978             : 
    1979           0 : static inline void zend_accel_fast_del_bucket(HashTable *ht, uint32_t idx, Bucket *p)
    1980             : {
    1981           0 :         uint32_t nIndex = p->h & ht->nTableMask;
    1982           0 :         uint32_t i = ht->arHash[nIndex];
    1983             : 
    1984           0 :         ht->nNumUsed--;
    1985           0 :         ht->nNumOfElements--;
    1986           0 :         if (idx != i) {
    1987           0 :                 Bucket *prev = ht->arData + i;
    1988           0 :                 while (Z_NEXT(prev->val) != idx) {
    1989           0 :                         i = Z_NEXT(prev->val);
    1990           0 :                         prev = ht->arData + i;
    1991             :                 }
    1992           0 :                 Z_NEXT(prev->val) = Z_NEXT(p->val);
    1993             :         } else {
    1994           0 :                 ht->arHash[p->h & ht->nTableMask] = Z_NEXT(p->val);
    1995             :         }
    1996           0 : }
    1997             : 
    1998           0 : static void zend_accel_fast_shutdown(TSRMLS_D)
    1999             : {
    2000           0 :         if (EG(full_tables_cleanup)) {
    2001           0 :                 EG(symbol_table).ht.pDestructor = accel_fast_zval_dtor;
    2002             :         } else {
    2003             :                 dtor_func_t old_destructor;
    2004             : 
    2005           0 :                 if (EG(objects_store).top > 1 || zend_hash_num_elements(&EG(regular_list)) > 0) {
    2006             :                         /* We don't have to destroy all zvals if they cannot call any destructors */
    2007             : 
    2008           0 :                     old_destructor = EG(symbol_table).ht.pDestructor;
    2009           0 :                         EG(symbol_table).ht.pDestructor = accel_fast_zval_dtor;
    2010           0 :                         zend_try {
    2011           0 :                                 zend_hash_graceful_reverse_destroy(&EG(symbol_table).ht);
    2012           0 :                         } zend_end_try();
    2013           0 :                         EG(symbol_table).ht.pDestructor = old_destructor;
    2014             :                 }
    2015           0 :                 zend_hash_init(&EG(symbol_table).ht, 8, NULL, NULL, 0);
    2016             : 
    2017           0 :                 ZEND_HASH_REVERSE_FOREACH(EG(function_table), 0) {
    2018           0 :                         zend_function *func = Z_PTR(_p->val);
    2019             :                 
    2020           0 :                         if (func->type == ZEND_INTERNAL_FUNCTION) {
    2021           0 :                                 break;
    2022             :                         } else {
    2023           0 :                                 if (func->op_array.static_variables) {
    2024           0 :                                         accel_fast_hash_destroy(func->op_array.static_variables);
    2025             :                                 }
    2026           0 :                                 zend_accel_fast_del_bucket(EG(function_table), _idx-1, _p);
    2027             :                         }
    2028             :                 } ZEND_HASH_FOREACH_END();
    2029             : 
    2030           0 :                 ZEND_HASH_REVERSE_FOREACH(EG(class_table), 0) {
    2031           0 :                         zend_class_entry *ce = Z_PTR(_p->val);
    2032             : 
    2033           0 :                         if (ce->type == ZEND_INTERNAL_CLASS) {
    2034           0 :                                 break;
    2035             :                         } else {
    2036           0 :                                 if (ce->ce_flags & ZEND_HAS_STATIC_IN_METHODS) {
    2037             :                                         zend_function *func;
    2038             : 
    2039           0 :                                         ZEND_HASH_FOREACH_PTR(&ce->function_table, func) {
    2040           0 :                                                 if (func->type == ZEND_USER_FUNCTION) {
    2041           0 :                                                         if (func->op_array.static_variables) {
    2042           0 :                                                                 accel_fast_hash_destroy(func->op_array.static_variables);
    2043           0 :                                                                 func->op_array.static_variables = NULL;
    2044             :                                                         }
    2045             :                                                 }
    2046             :                                         } ZEND_HASH_FOREACH_END();
    2047             :                                 }
    2048           0 :                                 if (ce->static_members_table) {
    2049             :                                         int i;
    2050             : 
    2051           0 :                                         for (i = 0; i < ce->default_static_members_count; i++) {
    2052           0 :                                                 accel_fast_zval_dtor(&ce->static_members_table[i]);
    2053           0 :                                                 ZVAL_UNDEF(&ce->static_members_table[i]);
    2054             :                                         }
    2055           0 :                                         ce->static_members_table = NULL;
    2056             :                                 }
    2057           0 :                                 zend_accel_fast_del_bucket(EG(class_table), _idx-1, _p);
    2058             :                         }
    2059             :                 } ZEND_HASH_FOREACH_END();
    2060             : 
    2061           0 :                 ZEND_HASH_REVERSE_FOREACH(EG(zend_constants), 0) {
    2062           0 :                         zend_constant *c = Z_PTR(_p->val);
    2063             : 
    2064           0 :                         if (c->flags & CONST_PERSISTENT) {
    2065           0 :                                 break;
    2066             :                         } else {
    2067           0 :                                 zend_accel_fast_del_bucket(EG(zend_constants), _idx-1, _p);
    2068             :                         }
    2069             :                 } ZEND_HASH_FOREACH_END();
    2070             :         }
    2071           0 :         CG(unclean_shutdown) = 1;
    2072           0 : }
    2073             : #endif
    2074             : 
    2075         368 : static void accel_deactivate(void)
    2076             : {
    2077             :         /* ensure that we restore function_table and class_table
    2078             :          * In general, they're restored by persistent_compile_file(), but in case
    2079             :          * the script is aborted abnormally, they may become messed up.
    2080             :          */
    2081             :         TSRMLS_FETCH();
    2082             : 
    2083         368 :         if (!ZCG(enabled) || !accel_startup_ok) {
    2084           0 :                 return;
    2085             :         }
    2086             : 
    2087         368 :         zend_shared_alloc_safe_unlock(TSRMLS_C); /* be sure we didn't leave cache locked */
    2088         368 :         accel_unlock_all(TSRMLS_C);
    2089         368 :         ZCG(counted) = 0;
    2090             : 
    2091             : #if !ZEND_DEBUG
    2092         368 :         if (ZCG(accel_directives).fast_shutdown) {
    2093           0 :                 zend_accel_fast_shutdown(TSRMLS_C);
    2094             :         }
    2095             : #endif
    2096             : 
    2097         368 :         if (ZCG(cwd)) {
    2098          25 :                 efree(ZCG(cwd));
    2099          25 :                 ZCG(cwd) = NULL;
    2100             :         }
    2101             : 
    2102             : }
    2103             : 
    2104       20019 : static int accelerator_remove_cb(zend_extension *element1, zend_extension *element2)
    2105             : {
    2106             :         (void)element2; /* keep the compiler happy */
    2107             : 
    2108       20019 :         if (!strcmp(element1->name, ACCELERATOR_PRODUCT_NAME )) {
    2109       20019 :                 element1->startup = NULL;
    2110             : #if 0
    2111             :                 /* We have to call shutdown callback it to free TS resources */
    2112             :                 element1->shutdown = NULL;
    2113             : #endif
    2114       20019 :                 element1->activate = NULL;
    2115       20019 :                 element1->deactivate = NULL;
    2116       20019 :                 element1->op_array_handler = NULL;
    2117             : 
    2118             : #ifdef __DEBUG_MESSAGES__
    2119             :         fprintf(stderr, ACCELERATOR_PRODUCT_NAME " is disabled: %s\n", (zps_failure_reason ? zps_failure_reason : "unknown error"));
    2120             :         fflush(stderr);
    2121             : #endif
    2122             :         }
    2123             : 
    2124       20019 :         return 0;
    2125             : }
    2126             : 
    2127       20019 : static void zps_startup_failure(char *reason, char *api_reason, int (*cb)(zend_extension *, zend_extension *) TSRMLS_DC)
    2128             : {
    2129       20019 :         accel_startup_ok = 0;
    2130       20019 :         zps_failure_reason = reason;
    2131       20019 :         zps_api_failure_reason = api_reason?api_reason:reason;
    2132       20019 :         zend_llist_del_element(&zend_extensions, NULL, (int (*)(void *, void *))cb);
    2133       20019 : }
    2134             : 
    2135       20387 : static inline int accel_find_sapi(TSRMLS_D)
    2136             : {
    2137             :         static const char *supported_sapis[] = {
    2138             :                 "apache",
    2139             :                 "fastcgi",
    2140             :                 "cli-server",
    2141             :                 "cgi-fcgi",
    2142             :                 "fpm-fcgi",
    2143             :                 "isapi",
    2144             :                 "apache2filter",
    2145             :                 "apache2handler",
    2146             :                 "litespeed",
    2147             :                 NULL
    2148             :         };
    2149             :         const char **sapi_name;
    2150             : 
    2151       20387 :         if (sapi_module.name) {
    2152      201674 :                 for (sapi_name = supported_sapis; *sapi_name; sapi_name++) {
    2153      181653 :                         if (strcmp(sapi_module.name, *sapi_name) == 0) {
    2154         366 :                                 return SUCCESS;
    2155             :                         }
    2156             :                 }
    2157       20023 :                 if (ZCG(accel_directives).enable_cli &&
    2158           2 :                     strcmp(sapi_module.name, "cli") == 0) {
    2159           2 :                         return SUCCESS;
    2160             :                 }
    2161             :         }
    2162             : 
    2163       20019 :         return FAILURE;
    2164             : }
    2165             : 
    2166         368 : static int zend_accel_init_shm(TSRMLS_D)
    2167             : {
    2168         368 :         zend_shared_alloc_lock(TSRMLS_C);
    2169             : 
    2170         368 :         accel_shared_globals = zend_shared_alloc(sizeof(zend_accel_shared_globals));
    2171         368 :         if (!accel_shared_globals) {
    2172           0 :                 zend_accel_error(ACCEL_LOG_FATAL, "Insufficient shared memory!");
    2173           0 :                 return FAILURE;
    2174             :         }
    2175         368 :         ZSMMG(app_shared_globals) = accel_shared_globals;
    2176             : 
    2177         368 :         zend_accel_hash_init(&ZCSG(hash), ZCG(accel_directives).max_accelerated_files);
    2178         368 :         zend_accel_hash_init(&ZCSG(include_paths), 32);
    2179             : 
    2180         368 :         ZCSG(interned_strings_start) = ZCSG(interned_strings_end) = NULL;
    2181             : # ifndef ZTS
    2182         368 :         zend_hash_init(&ZCSG(interned_strings), (ZCG(accel_directives).interned_strings_buffer * 1024 * 1024) / (sizeof(Bucket) + sizeof(Bucket*) + 8 /* average string length */), NULL, NULL, 1);
    2183         368 :         if (ZCG(accel_directives).interned_strings_buffer) {
    2184         368 :                 ZCSG(interned_strings).nTableMask = ZCSG(interned_strings).nTableSize - 1;
    2185         368 :                 ZCSG(interned_strings).arData = zend_shared_alloc(ZCSG(interned_strings).nTableSize * sizeof(Bucket));
    2186         368 :                 ZCSG(interned_strings).arHash = (uint32_t*)zend_shared_alloc(ZCSG(interned_strings).nTableSize * sizeof(uint32_t));
    2187         368 :                 ZCSG(interned_strings_start) = zend_shared_alloc((ZCG(accel_directives).interned_strings_buffer * 1024 * 1024));
    2188         368 :                 if (!ZCSG(interned_strings).arData || !ZCSG(interned_strings_start)) {
    2189           0 :                         zend_accel_error(ACCEL_LOG_FATAL, ACCELERATOR_PRODUCT_NAME " cannot allocate buffer for interned strings");
    2190           0 :                         return FAILURE;
    2191             :                 }
    2192         368 :                 memset(ZCSG(interned_strings).arHash, INVALID_IDX, ZCSG(interned_strings).nTableSize * sizeof(uint32_t));
    2193         368 :                 ZCSG(interned_strings_end)   = ZCSG(interned_strings_start) + (ZCG(accel_directives).interned_strings_buffer * 1024 * 1024);
    2194         368 :                 ZCSG(interned_strings_top)   = ZCSG(interned_strings_start);
    2195             : 
    2196             : //              orig_interned_strings_start = CG(interned_strings_start);
    2197             : //              orig_interned_strings_end = CG(interned_strings_end);
    2198             : //              CG(interned_strings_start) = ZCSG(interned_strings_start);
    2199             : //              CG(interned_strings_end) = ZCSG(interned_strings_end);
    2200             :         }
    2201             : # endif
    2202             : 
    2203         368 :         orig_new_interned_string = zend_new_interned_string;
    2204         368 :         orig_interned_strings_snapshot = zend_interned_strings_snapshot;
    2205         368 :         orig_interned_strings_restore = zend_interned_strings_restore;
    2206         368 :         zend_new_interned_string = accel_new_interned_string_for_php;
    2207         368 :         zend_interned_strings_snapshot = accel_interned_strings_snapshot_for_php;
    2208         368 :         zend_interned_strings_restore = accel_interned_strings_restore_for_php;
    2209             : 
    2210             : # ifndef ZTS
    2211         368 :         if (ZCG(accel_directives).interned_strings_buffer) {
    2212         368 :                 accel_use_shm_interned_strings(TSRMLS_C);
    2213         368 :                 accel_interned_strings_save_state(TSRMLS_C);
    2214             :         }
    2215             : # endif
    2216             : 
    2217         368 :         zend_reset_cache_vars(TSRMLS_C);
    2218             : 
    2219         368 :         ZCSG(oom_restarts) = 0;
    2220         368 :         ZCSG(hash_restarts) = 0;
    2221         368 :         ZCSG(manual_restarts) = 0;
    2222             : 
    2223         368 :         ZCSG(accelerator_enabled) = 1;
    2224         368 :         ZCSG(start_time) = zend_accel_get_time();
    2225         368 :         ZCSG(last_restart_time) = 0;
    2226         368 :         ZCSG(restart_in_progress) = 0;
    2227             : 
    2228         368 :         zend_shared_alloc_unlock(TSRMLS_C);
    2229             : 
    2230         368 :         return SUCCESS;
    2231             : }
    2232             : 
    2233       20387 : static void accel_globals_ctor(zend_accel_globals *accel_globals TSRMLS_DC)
    2234             : {
    2235       20387 :         memset(accel_globals, 0, sizeof(zend_accel_globals));
    2236       20387 :         zend_hash_init(&accel_globals->function_table, zend_hash_num_elements(CG(function_table)), NULL, ZEND_FUNCTION_DTOR, 1);
    2237       20387 :         zend_accel_copy_internal_functions(TSRMLS_C);
    2238       20387 : }
    2239             : 
    2240    45398859 : static void accel_globals_internal_func_dtor(zval *zv)
    2241             : {
    2242    45398859 :         free(Z_PTR_P(zv));
    2243    45398859 : }
    2244             : 
    2245       20385 : static void accel_globals_dtor(zend_accel_globals *accel_globals TSRMLS_DC)
    2246             : {
    2247       20385 :         accel_globals->function_table.pDestructor = accel_globals_internal_func_dtor;
    2248       20385 :         zend_hash_destroy(&accel_globals->function_table);
    2249       20385 : }
    2250             : 
    2251       20387 : static int accel_startup(zend_extension *extension)
    2252             : {
    2253             :         zend_function *func;
    2254             :         zend_ini_entry *ini_entry;
    2255             :         TSRMLS_FETCH();
    2256             : 
    2257             : #ifdef ZTS
    2258             :         accel_globals_id = ts_allocate_id(&accel_globals_id, sizeof(zend_accel_globals), (ts_allocate_ctor) accel_globals_ctor, (ts_allocate_dtor) accel_globals_dtor);
    2259             : #else
    2260       20387 :         accel_globals_ctor(&accel_globals);
    2261             : #endif
    2262             : 
    2263             : #ifdef ZEND_WIN32
    2264             :         _setmaxstdio(2048); /* The default configuration is limited to 512 stdio files */
    2265             : #endif
    2266             : 
    2267       20387 :         if (start_accel_module(TSRMLS_C) == FAILURE) {
    2268           0 :                 accel_startup_ok = 0;
    2269           0 :                 zend_error(E_WARNING, ACCELERATOR_PRODUCT_NAME ": module registration failed!");
    2270           0 :                 return FAILURE;
    2271             :         }
    2272             : 
    2273             :         /* no supported SAPI found - disable acceleration and stop initialization */
    2274       20387 :         if (accel_find_sapi(TSRMLS_C) == FAILURE) {
    2275       20019 :                 accel_startup_ok = 0;
    2276       60057 :                 if (!ZCG(accel_directives).enable_cli &&
    2277       20019 :                     strcmp(sapi_module.name, "cli") == 0) {
    2278       20019 :                         zps_startup_failure("Opcode Caching is disabled for CLI", NULL, accelerator_remove_cb TSRMLS_CC);
    2279             :                 } else {
    2280           0 :                         zps_startup_failure("Opcode Caching is only supported in Apache, ISAPI, FPM, FastCGI and LiteSpeed SAPIs", NULL, accelerator_remove_cb TSRMLS_CC);
    2281             :                 }
    2282       20019 :                 return SUCCESS;
    2283             :         }
    2284             : 
    2285         368 :         if (ZCG(enabled) == 0) {
    2286           0 :                 return SUCCESS ;
    2287             :         }
    2288             : /********************************************/
    2289             : /* End of non-SHM dependent initializations */
    2290             : /********************************************/
    2291         368 :         switch (zend_shared_alloc_startup(ZCG(accel_directives).memory_consumption)) {
    2292             :                 case ALLOC_SUCCESS:
    2293         368 :                         if (zend_accel_init_shm(TSRMLS_C) == FAILURE) {
    2294           0 :                                 accel_startup_ok = 0;
    2295           0 :                                 return FAILURE;
    2296             :                         }
    2297         368 :                         break;
    2298             :                 case ALLOC_FAILURE:
    2299           0 :                         accel_startup_ok = 0;
    2300           0 :                         zend_accel_error(ACCEL_LOG_FATAL, "Failure to initialize shared memory structures - probably not enough shared memory.");
    2301           0 :                         return SUCCESS;
    2302             :                 case SUCCESSFULLY_REATTACHED:
    2303           0 :                         accel_shared_globals = (zend_accel_shared_globals *) ZSMMG(app_shared_globals);
    2304           0 :                         zend_shared_alloc_lock(TSRMLS_C);
    2305           0 :                         orig_new_interned_string = zend_new_interned_string;
    2306           0 :                         orig_interned_strings_snapshot = zend_interned_strings_snapshot;
    2307           0 :                         orig_interned_strings_restore = zend_interned_strings_restore;
    2308             : 
    2309           0 :                         zend_new_interned_string = accel_new_interned_string_for_php;
    2310           0 :                         zend_interned_strings_snapshot = accel_interned_strings_snapshot_for_php;
    2311           0 :                         zend_interned_strings_restore = accel_interned_strings_restore_for_php;
    2312             : #ifndef ZTS
    2313           0 :                         accel_use_shm_interned_strings(TSRMLS_C);
    2314             : #endif
    2315           0 :                         zend_shared_alloc_unlock(TSRMLS_C);
    2316           0 :                         break;
    2317             :                 case FAILED_REATTACHED:
    2318           0 :                         accel_startup_ok = 0;
    2319           0 :                         zend_accel_error(ACCEL_LOG_FATAL, "Failure to initialize shared memory structures - can not reattach to exiting shared memory.");
    2320           0 :                         return SUCCESS;
    2321             :                         break;
    2322             :         }
    2323             : 
    2324             :         /* from this point further, shared memory is supposed to be OK */
    2325             : 
    2326             :         /* Init auto-global strings */
    2327         368 :         zend_accel_init_auto_globals(TSRMLS_C);
    2328             : 
    2329             :         /* Override compiler */
    2330         368 :         accelerator_orig_compile_file = zend_compile_file;
    2331         368 :         zend_compile_file = persistent_compile_file;
    2332             : 
    2333             :         /* Override stream opener function (to eliminate open() call caused by
    2334             :          * include/require statements ) */
    2335         368 :         accelerator_orig_zend_stream_open_function = zend_stream_open_function;
    2336         368 :         zend_stream_open_function = persistent_stream_open_function;
    2337             : 
    2338             :         /* Override path resolver function (to eliminate stat() calls caused by
    2339             :          * include_once/require_once statements */
    2340         368 :         accelerator_orig_zend_resolve_path = zend_resolve_path;
    2341         368 :         zend_resolve_path = persistent_zend_resolve_path;
    2342             : 
    2343             :         /* Override chdir() function */
    2344        1104 :         if ((func = zend_hash_str_find_ptr(CG(function_table), "chdir", sizeof("chdir")-1)) != NULL &&
    2345         368 :             func->type == ZEND_INTERNAL_FUNCTION) {
    2346         368 :                 orig_chdir = func->internal_function.handler;
    2347         368 :                 func->internal_function.handler = ZEND_FN(accel_chdir);
    2348             :         }
    2349         368 :         ZCG(cwd) = NULL;
    2350             : 
    2351             :         /* Override "include_path" modifier callback */
    2352         736 :         if ((ini_entry = zend_hash_str_find_ptr(EG(ini_directives), "include_path", sizeof("include_path")-1)) != NULL) {
    2353         368 :                 ZCG(include_path) = INI_STR("include_path");
    2354         368 :                 ZCG(include_path_key) = NULL;
    2355         736 :                 if (ZCG(include_path) && *ZCG(include_path)) {
    2356         368 :                         ZCG(include_path_len) = strlen(ZCG(include_path));
    2357         368 :                         ZCG(include_path_key) = zend_accel_hash_find(&ZCSG(include_paths), ZCG(include_path), ZCG(include_path_len));
    2358         736 :                         if (!ZCG(include_path_key) &&
    2359         368 :                             !zend_accel_hash_is_full(&ZCSG(include_paths))) {
    2360             :                                 char *key;
    2361             : 
    2362         368 :                                 zend_shared_alloc_lock(TSRMLS_C);
    2363         368 :                                 key = zend_shared_alloc(ZCG(include_path_len) + 2);
    2364         368 :                                 if (key) {
    2365         368 :                                         memcpy(key, ZCG(include_path), ZCG(include_path_len) + 1);
    2366         368 :                                         key[ZCG(include_path_len) + 1] = 'A' + ZCSG(include_paths).num_entries;
    2367         368 :                                         ZCG(include_path_key) = key + ZCG(include_path_len) + 1;
    2368         368 :                                         zend_accel_hash_update(&ZCSG(include_paths), key, ZCG(include_path_len), 0, ZCG(include_path_key));
    2369             :                                 } else {
    2370           0 :                                         zend_accel_schedule_restart_if_necessary(ACCEL_RESTART_OOM TSRMLS_CC);
    2371             :                                 }
    2372         368 :                                 zend_shared_alloc_unlock(TSRMLS_C);
    2373             :                         }
    2374             :                 } else {
    2375           0 :                         ZCG(include_path) = "";
    2376           0 :                         ZCG(include_path_len) = 0;
    2377             :                 }
    2378         368 :                 orig_include_path_on_modify = ini_entry->on_modify;
    2379         368 :                 ini_entry->on_modify = accel_include_path_on_modify;
    2380             :         }
    2381             : 
    2382         368 :         zend_shared_alloc_lock(TSRMLS_C);
    2383         368 :         zend_shared_alloc_save_state();
    2384         368 :         zend_shared_alloc_unlock(TSRMLS_C);
    2385             : 
    2386         368 :         SHM_PROTECT();
    2387             : 
    2388         368 :         accel_startup_ok = 1;
    2389             : 
    2390             :         /* Override file_exists(), is_file() and is_readable() */
    2391         368 :         zend_accel_override_file_functions(TSRMLS_C);
    2392             : 
    2393             :         /* Load black list */
    2394         368 :         accel_blacklist.entries = NULL;
    2395        1104 :         if (ZCG(enabled) && accel_startup_ok &&
    2396         368 :             ZCG(accel_directives).user_blacklist_filename && 
    2397         368 :             *ZCG(accel_directives.user_blacklist_filename)) {
    2398           0 :                 zend_accel_blacklist_init(&accel_blacklist);
    2399           0 :                 zend_accel_blacklist_load(&accel_blacklist, ZCG(accel_directives.user_blacklist_filename));
    2400             :         }
    2401             :         
    2402             : #if 0
    2403             :         /* FIXME: We probably don't need it here */
    2404             :         zend_accel_copy_internal_functions(TSRMLS_C);
    2405             : #endif
    2406             : 
    2407         368 :         return SUCCESS;
    2408             : }
    2409             : 
    2410       20385 : static void accel_free_ts_resources()
    2411             : {
    2412             : #ifndef ZTS
    2413       20385 :         accel_globals_dtor(&accel_globals);
    2414             : #else
    2415             :         ts_free_id(accel_globals_id);
    2416             : #endif
    2417       20385 : }
    2418             : 
    2419       20385 : void accel_shutdown(TSRMLS_D)
    2420             : {
    2421             :         zend_ini_entry *ini_entry;
    2422             : 
    2423       20385 :         zend_accel_blacklist_shutdown(&accel_blacklist);
    2424             : 
    2425       20385 :         if (!ZCG(enabled) || !accel_startup_ok) {
    2426       20017 :                 accel_free_ts_resources();
    2427       20017 :                 return;
    2428             :         }
    2429             : 
    2430         368 :         if (ZCG(accel_directives).interned_strings_buffer) {
    2431             : #ifndef ZTS
    2432         368 :                 zend_hash_clean(CG(auto_globals));
    2433         368 :                 zend_hash_clean(CG(function_table));
    2434         368 :                 zend_hash_clean(CG(class_table));
    2435         368 :                 zend_hash_clean(EG(zend_constants));
    2436             : #endif
    2437             :         }
    2438             : 
    2439         368 :         zend_new_interned_string = orig_new_interned_string;
    2440         368 :         zend_interned_strings_snapshot = orig_interned_strings_snapshot;
    2441         368 :         zend_interned_strings_restore = orig_interned_strings_restore;
    2442             : 
    2443         368 :         accel_free_ts_resources();
    2444         368 :         zend_shared_alloc_shutdown();
    2445         368 :         zend_compile_file = accelerator_orig_compile_file;
    2446             : 
    2447         736 :         if ((ini_entry = zend_hash_str_find_ptr(EG(ini_directives), "include_path", sizeof("include_path")-1)) != NULL) {
    2448         368 :                 ini_entry->on_modify = orig_include_path_on_modify;
    2449             :         }
    2450             : }
    2451             : 
    2452           0 : void zend_accel_schedule_restart(zend_accel_restart_reason reason TSRMLS_DC)
    2453             : {
    2454           0 :         if (ZCSG(restart_pending)) {
    2455             :                 /* don't schedule twice */
    2456           0 :                 return;
    2457             :         }
    2458           0 :         zend_accel_error(ACCEL_LOG_DEBUG, "Restart Scheduled!");
    2459             : 
    2460           0 :         SHM_UNPROTECT();
    2461           0 :         ZCSG(restart_pending) = 1;
    2462           0 :         ZCSG(restart_reason) = reason;
    2463           0 :         ZCSG(cache_status_before_restart) = ZCSG(accelerator_enabled);
    2464           0 :         ZCSG(accelerator_enabled) = 0;
    2465             : 
    2466           0 :         if (ZCG(accel_directives).force_restart_timeout) {
    2467           0 :                 ZCSG(force_restart_time) = zend_accel_get_time() + ZCG(accel_directives).force_restart_timeout;
    2468             :         } else {
    2469           0 :                 ZCSG(force_restart_time) = 0;
    2470             :         }
    2471           0 :         SHM_PROTECT();
    2472             : }
    2473             : 
    2474             : /* this is needed because on WIN32 lock is not decreased unless ZCG(counted) is set */
    2475             : #ifdef ZEND_WIN32
    2476             : #define accel_deactivate_now() ZCG(counted) = 1; accel_deactivate_sub(TSRMLS_C)
    2477             : #else
    2478             : #define accel_deactivate_now() accel_deactivate_sub(TSRMLS_C)
    2479             : #endif
    2480             : 
    2481             : /* ensures it is OK to read SHM
    2482             :         if it's not OK (restart in progress) returns FAILURE
    2483             :         if OK returns SUCCESS
    2484             :         MUST call accelerator_shm_read_unlock after done lock operations
    2485             : */
    2486           0 : int accelerator_shm_read_lock(TSRMLS_D)
    2487             : {
    2488           0 :         if (ZCG(counted)) {
    2489             :                 /* counted means we are holding read lock for SHM, so that nothing bad can happen */
    2490           0 :                 return SUCCESS;
    2491             :         } else {
    2492             :                 /* here accelerator is active but we do not hold SHM lock. This means restart was scheduled
    2493             :                         or is in progress now */
    2494           0 :                 accel_activate_add(TSRMLS_C); /* acquire usage lock */
    2495             :                 /* Now if we weren't inside restart, restart would not begin until we remove usage lock */
    2496           0 :                 if (ZCSG(restart_in_progress)) {
    2497             :                         /* we already were inside restart this means it's not safe to touch shm */
    2498           0 :                         accel_deactivate_now(); /* drop usage lock */
    2499           0 :                         return FAILURE;
    2500             :                 }
    2501             :         }
    2502           0 :         return SUCCESS;
    2503             : }
    2504             : 
    2505             : /* must be called ONLY after SUCCESSFUL accelerator_shm_read_lock */
    2506           0 : void accelerator_shm_read_unlock(TSRMLS_D)
    2507             : {
    2508           0 :         if (!ZCG(counted)) {
    2509             :                 /* counted is 0 - meaning we had to readlock manually, release readlock now */
    2510           0 :                 accel_deactivate_now();
    2511             :         }
    2512           0 : }
    2513             : 
    2514             : ZEND_EXT_API zend_extension zend_extension_entry = {
    2515             :         ACCELERATOR_PRODUCT_NAME,               /* name */
    2516             :         ACCELERATOR_VERSION,                                    /* version */
    2517             :         "Zend Technologies",                                  /* author */
    2518             :         "http://www.zend.com/",                                       /* URL */
    2519             :         "Copyright (c) 1999-2014",                            /* copyright */
    2520             :         accel_startup,                                                  /* startup */
    2521             :         NULL,                                                                   /* shutdown */
    2522             :         accel_activate,                                                 /* per-script activation */
    2523             :         accel_deactivate,                                               /* per-script deactivation */
    2524             :         NULL,                                                                   /* message handler */
    2525             :         NULL,                                                                   /* op_array handler */
    2526             :         NULL,                                                                   /* extended statement handler */
    2527             :         NULL,                                                                   /* extended fcall begin handler */
    2528             :         NULL,                                                                   /* extended fcall end handler */
    2529             :         NULL,                                                                   /* op_array ctor */
    2530             :         NULL,                                                                   /* op_array dtor */
    2531             :         STANDARD_ZEND_EXTENSION_PROPERTIES
    2532             : };

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