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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: 2015-01-26 Functions: 38 60 63.3 %
Legend: Lines: hit not hit

          Line data    Source code
       1             : /*
       2             :    +----------------------------------------------------------------------+
       3             :    | Zend OPcache                                                         |
       4             :    +----------------------------------------------------------------------+
       5             :    | Copyright (c) 1998-2015 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); \
      78             :                 } \
      79             :         } while (0)
      80             : #define SHM_UNPROTECT() \
      81             :         do { \
      82             :                 if (ZCG(accel_directives).protect_memory) { \
      83             :                         zend_accel_shared_protect(0); \
      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             : #if defined(COMPILE_DL_OPCACHE)
      94             : ZEND_TSRMLS_CACHE_DEFINE;
      95             : #endif
      96             : #endif
      97             : 
      98             : /* Points to the structure shared across all PHP processes */
      99             : zend_accel_shared_globals *accel_shared_globals = NULL;
     100             : 
     101             : /* true globals, no need for thread safety */
     102             : zend_bool accel_startup_ok = 0;
     103             : static char *zps_failure_reason = NULL;
     104             : char *zps_api_failure_reason = NULL;
     105             : 
     106             : static zend_op_array *(*accelerator_orig_compile_file)(zend_file_handle *file_handle, int type);
     107             : static int (*accelerator_orig_zend_stream_open_function)(const char *filename, zend_file_handle *handle );
     108             : static char *(*accelerator_orig_zend_resolve_path)(const char *filename, int filename_len);
     109             : static void (*orig_chdir)(INTERNAL_FUNCTION_PARAMETERS) = NULL;
     110             : static ZEND_INI_MH((*orig_include_path_on_modify)) = NULL;
     111             : 
     112             : #ifdef ZEND_WIN32
     113             : # define INCREMENT(v) InterlockedIncrement64(&ZCSG(v))
     114             : # define DECREMENT(v) InterlockedDecrement64(&ZCSG(v))
     115             : # define LOCKVAL(v)   (ZCSG(v))
     116             : #endif
     117             : 
     118             : #ifdef ZEND_WIN32
     119             : static time_t zend_accel_get_time(void)
     120             : {
     121             :         FILETIME now;
     122             :         GetSystemTimeAsFileTime(&now);
     123             : 
     124             :         return (time_t) ((((((__int64)now.dwHighDateTime) << 32)|now.dwLowDateTime) - 116444736000000000L)/10000000);
     125             : }
     126             : #else
     127             : # define zend_accel_get_time() time(NULL)
     128             : #endif
     129             : 
     130         909 : static inline int is_stream_path(const char *filename)
     131             : {
     132             :         const char *p;
     133             : 
     134         909 :         for (p = filename; isalnum((int)*p) || *p == '+' || *p == '-' || *p == '.'; p++);
     135         909 :         return ((*p == ':') && (p - filename > 1) && (p[1] == '/') && (p[2] == '/'));
     136             : }
     137             : 
     138          28 : static inline int is_cacheable_stream_path(const char *filename)
     139             : {
     140          56 :         return memcmp(filename, "file://", sizeof("file://") - 1) == 0 ||
     141          28 :                memcmp(filename, "phar://", sizeof("phar://") - 1) == 0;
     142             : }
     143             : 
     144             : /* O+ overrides PHP chdir() function and remembers the current working directory
     145             :  * in ZCG(cwd) and ZCG(cwd_len). Later accel_getcwd() can use stored value and
     146             :  * avoid getcwd() call.
     147             :  */
     148           0 : static ZEND_FUNCTION(accel_chdir)
     149             : {
     150             :         char cwd[MAXPATHLEN];
     151             : 
     152           0 :         orig_chdir(INTERNAL_FUNCTION_PARAM_PASSTHRU);
     153           0 :         if (VCWD_GETCWD(cwd, MAXPATHLEN)) {
     154           0 :                 if (ZCG(cwd)) {
     155           0 :                         efree(ZCG(cwd));
     156             :                 }
     157           0 :                 ZCG(cwd_len) = strlen(cwd);
     158           0 :                 ZCG(cwd) = estrndup(cwd, ZCG(cwd_len));
     159             :         } else {
     160           0 :                 if (ZCG(cwd)) {
     161           0 :                         efree(ZCG(cwd));
     162           0 :                         ZCG(cwd) = NULL;
     163             :                 }
     164             :         }
     165           0 : }
     166             : 
     167          29 : static inline char* accel_getcwd(int *cwd_len)
     168             : {
     169          29 :         if (ZCG(cwd)) {
     170           4 :                 *cwd_len = ZCG(cwd_len);
     171           4 :                 return ZCG(cwd);
     172             :         } else {
     173             :                 char cwd[MAXPATHLEN + 1];
     174             : 
     175          25 :                 if (!VCWD_GETCWD(cwd, MAXPATHLEN)) {
     176           0 :                         return NULL;
     177             :                 }
     178          25 :                 *cwd_len = ZCG(cwd_len) = strlen(cwd);
     179          25 :                 ZCG(cwd) = estrndup(cwd, ZCG(cwd_len));
     180          25 :                 return ZCG(cwd);
     181             :         }
     182             : }
     183             : 
     184           0 : void zend_accel_schedule_restart_if_necessary(zend_accel_restart_reason reason)
     185             : {
     186           0 :         if ((((double) ZSMMG(wasted_shared_memory)) / ZCG(accel_directives).memory_consumption) >= ZCG(accel_directives).max_wasted_percentage) {
     187           0 :                 zend_accel_schedule_restart(reason);
     188             :         }
     189           0 : }
     190             : 
     191             : /* O+ tracks changes of "include_path" directive. It stores all the requested
     192             :  * values in ZCG(include_paths) shared hash table, current value in
     193             :  * ZCG(include_path)/ZCG(include_path_len) and one letter "path key" in
     194             :  * ZCG(include_path_key).
     195             :  */
     196           6 : static ZEND_INI_MH(accel_include_path_on_modify)
     197             : {
     198           6 :         int ret = orig_include_path_on_modify(entry, new_value, mh_arg1, mh_arg2, mh_arg3, stage);
     199             : 
     200           6 :         ZCG(include_path_key) = NULL;
     201           6 :         if (ret == SUCCESS) {
     202           6 :                 ZCG(include_path) = new_value->val;
     203          12 :                 if (ZCG(include_path) && *ZCG(include_path)) {
     204           6 :                         ZCG(include_path_len) = new_value->len;
     205             : 
     206          21 :                         if (ZCG(enabled) && accel_startup_ok &&
     207           9 :                             (ZCG(counted) || ZCSG(accelerator_enabled))) {
     208             : 
     209           6 :                                 ZCG(include_path_key) = zend_accel_hash_find(&ZCSG(include_paths), ZCG(include_path), ZCG(include_path_len));
     210           9 :                             if (!ZCG(include_path_key) &&
     211           3 :                                 !zend_accel_hash_is_full(&ZCSG(include_paths))) {
     212           3 :                                         SHM_UNPROTECT();
     213           3 :                                         zend_shared_alloc_lock();
     214             : 
     215           3 :                                         ZCG(include_path_key) = zend_accel_hash_find(&ZCSG(include_paths), ZCG(include_path), ZCG(include_path_len));
     216           6 :                                     if (!ZCG(include_path_key) &&
     217           3 :                                             !zend_accel_hash_is_full(&ZCSG(include_paths))) {
     218             :                                                 char *key;
     219             : 
     220           3 :                                                 key = zend_shared_alloc(ZCG(include_path_len) + 2);
     221           3 :                                                 if (key) {
     222           3 :                                                         memcpy(key, ZCG(include_path), ZCG(include_path_len) + 1);
     223           3 :                                                         key[ZCG(include_path_len) + 1] = 'A' + ZCSG(include_paths).num_entries;
     224           3 :                                                         ZCG(include_path_key) = key + ZCG(include_path_len) + 1;
     225           3 :                                                         zend_accel_hash_update(&ZCSG(include_paths), key, ZCG(include_path_len), 0, ZCG(include_path_key));
     226             :                                                 } else {
     227           0 :                                                         zend_accel_schedule_restart_if_necessary(ACCEL_RESTART_OOM);
     228             :                                                 }
     229             :                                         }
     230             : 
     231           3 :                                         zend_shared_alloc_unlock();
     232           3 :                                         SHM_PROTECT();
     233             :                                 }
     234             :                         } else {
     235           0 :                                 ZCG(include_path_check) = 1;
     236             :                         }
     237             :                 } else {
     238           0 :                         ZCG(include_path) = "";
     239           0 :                         ZCG(include_path_len) = 0;
     240             :                 }
     241             :         }
     242           6 :         return ret;
     243             : }
     244             : 
     245             : /* Interned strings support */
     246             : static zend_string *(*orig_new_interned_string)(zend_string *str);
     247             : static void (*orig_interned_strings_snapshot)(void);
     248             : static void (*orig_interned_strings_restore)(void);
     249             : 
     250             : /* O+ disables creation of interned strings by regular PHP compiler, instead,
     251             :  * it creates interned strings in shared memory when saves a script.
     252             :  * Such interned strings are shared across all PHP processes
     253             :  */
     254        4717 : static zend_string *accel_new_interned_string_for_php(zend_string *str)
     255             : {
     256        4717 :         return str;
     257             : }
     258             : 
     259         368 : static void accel_interned_strings_snapshot_for_php(void)
     260             : {
     261         368 : }
     262             : 
     263         368 : static void accel_interned_strings_restore_for_php(void)
     264             : {
     265         368 : }
     266             : 
     267             : #ifndef ZTS
     268           0 : static void accel_interned_strings_restore_state(void)
     269             : {
     270           0 :     uint idx = ZCSG(interned_strings).nNumUsed;
     271             :     uint nIndex;
     272             :     Bucket *p;
     273             : 
     274           0 :         ZCSG(interned_strings_top) = ZCSG(interned_strings_saved_top);
     275           0 :     while (idx > 0) {
     276           0 :         idx--;
     277           0 :                 p = ZCSG(interned_strings).arData + idx;
     278           0 :                 if ((char*)p->key < ZCSG(interned_strings_top)) break;
     279           0 :                 ZCSG(interned_strings).nNumUsed--;
     280           0 :                 ZCSG(interned_strings).nNumOfElements--;
     281             : 
     282           0 :                 nIndex = p->h & ZCSG(interned_strings).nTableMask;
     283           0 :                 if (ZCSG(interned_strings).arHash[nIndex] == idx) {
     284           0 :                         ZCSG(interned_strings).arHash[nIndex] = Z_NEXT(p->val);
     285             :                 } else {
     286           0 :                         uint prev = ZCSG(interned_strings).arHash[nIndex];
     287           0 :                         while (Z_NEXT(ZCSG(interned_strings).arData[prev].val) != idx) {
     288           0 :                                 prev = Z_NEXT(ZCSG(interned_strings).arData[prev].val);
     289             :                         }
     290           0 :                         Z_NEXT(ZCSG(interned_strings).arData[prev].val) = Z_NEXT(p->val);
     291             :                 }
     292             :         }
     293           0 : }
     294             : 
     295         368 : static void accel_interned_strings_save_state(void)
     296             : {
     297         368 :         ZCSG(interned_strings_saved_top) = ZCSG(interned_strings_top);
     298         368 : }
     299             : #endif
     300             : 
     301     4098216 : zend_string *accel_new_interned_string(zend_string *str)
     302             : {
     303             : /* for now interned strings are supported only for non-ZTS build */
     304             : #ifndef ZTS
     305             :         zend_ulong h;
     306             :         uint nIndex;
     307             :         uint idx;
     308             :         Bucket *p;
     309             : 
     310     4098216 :         if (IS_ACCEL_INTERNED(str)) {
     311             :                 /* this is already an interned string */
     312           0 :                 return str;
     313             :         }
     314             : 
     315     4098216 :         h = zend_string_hash_val(str);
     316     4098216 :         nIndex = h & ZCSG(interned_strings).nTableMask;
     317             : 
     318             :         /* check for existing interned string */
     319     4098216 :         idx = ZCSG(interned_strings).arHash[nIndex];
     320     8250237 :         while (idx != INVALID_IDX) {
     321     2499747 :                 p = ZCSG(interned_strings).arData + idx;
     322     2499747 :                 if ((p->h == h) && (p->key->len == str->len)) {
     323     2445942 :                         if (!memcmp(p->key->val, str->val, str->len)) {
     324             :                                 zend_string_release(str);
     325     2445942 :                                 return p->key;
     326             :                         }
     327             :                 }
     328       53805 :                 idx = Z_NEXT(p->val);
     329             :         }
     330             : 
     331     3304548 :         if (ZCSG(interned_strings_top) + ZEND_MM_ALIGNED_SIZE(_STR_HEADER_SIZE + str->len + 1) >=
     332     1652274 :             ZCSG(interned_strings_end)) {
     333             :             /* no memory, return the same non-interned string */
     334           0 :                 zend_accel_error(ACCEL_LOG_WARNING, "Interned string buffer overflow");
     335           0 :                 return str;
     336             :         }
     337             : 
     338             :         /* create new interning string in shared interned strings buffer */
     339             : 
     340     1652274 :         idx = ZCSG(interned_strings).nNumUsed++;
     341     1652274 :         ZCSG(interned_strings).nNumOfElements++;
     342     1652274 :         p = ZCSG(interned_strings).arData + idx;
     343     1652274 :         p->key = (zend_string*) ZCSG(interned_strings_top);
     344     1652274 :         ZCSG(interned_strings_top) += ZEND_MM_ALIGNED_SIZE(_STR_HEADER_SIZE + str->len + 1);
     345     1652274 :         p->h = h;
     346     1652274 :         GC_REFCOUNT(p->key) = 1;
     347             : #if 1
     348             :         /* optimized single assignment */
     349     1652274 :         GC_TYPE_INFO(p->key) = IS_STRING | ((IS_STR_INTERNED | IS_STR_PERMANENT) << 8);
     350             : #else
     351             :         GC_TYPE(p->key) = IS_STRING;
     352             :         GC_FLAGS(p->key) = IS_STR_INTERNED | IS_STR_PERMANENT;
     353             : #endif
     354     1652274 :         p->key->h = str->h;
     355     1652274 :         p->key->len = str->len;
     356     1652274 :         memcpy(p->key->val, str->val, str->len);
     357     1652274 :         ZVAL_STR(&p->val, p->key);
     358     1652274 :         Z_NEXT(p->val) = ZCSG(interned_strings).arHash[nIndex];
     359     1652274 :         ZCSG(interned_strings).arHash[nIndex] = idx;
     360             :         zend_string_release(str);
     361     1652274 :         return p->key;
     362             : #else
     363             :         return str;
     364             : #endif
     365             : }
     366             : 
     367             : #ifndef ZTS
     368             : /* Copy PHP interned strings from PHP process memory into the shared memory */
     369         368 : static void accel_use_shm_interned_strings(void)
     370             : {
     371             :         uint idx, j;
     372             :         Bucket *p, *q;
     373             : 
     374             :         /* empty string */
     375         368 :         CG(empty_string) = accel_new_interned_string(CG(empty_string));
     376       94576 :         for (j = 0; j < 256; j++) {
     377             :                 char s[2];
     378       94208 :                 s[0] = j;
     379       94208 :                 s[1] = 0;
     380      188416 :                 CG(one_char_string)[j] = accel_new_interned_string(zend_string_init(s, 1, 0));
     381             :         }
     382             : 
     383             :         /* function table hash keys */
     384      822840 :         for (idx = 0; idx < CG(function_table)->nNumUsed; idx++) {
     385      822472 :                 p = CG(function_table)->arData + idx;
     386     1644944 :                 if (Z_TYPE(p->val) == IS_UNDEF) continue;
     387      822472 :                 if (p->key) {
     388      822472 :                         p->key = accel_new_interned_string(p->key);
     389             :                 }
     390      822472 :                 if (Z_FUNC(p->val)->common.function_name) {
     391      822472 :                         Z_FUNC(p->val)->common.function_name = accel_new_interned_string(Z_FUNC(p->val)->common.function_name);
     392             :                 }
     393             :         }
     394             : 
     395             :         /* class table hash keys, class names, properties, methods, constants, etc */
     396       66240 :         for (idx = 0; idx < CG(class_table)->nNumUsed; idx++) {
     397             :                 zend_class_entry *ce;
     398             : 
     399       65872 :                 p = CG(class_table)->arData + idx;
     400      131744 :                 if (Z_TYPE(p->val) == IS_UNDEF) continue;
     401       65872 :                 ce = (zend_class_entry*)Z_PTR(p->val);
     402             : 
     403       65872 :                 if (p->key) {
     404       65872 :                         p->key = accel_new_interned_string(p->key);
     405             :                 }
     406             : 
     407       65872 :                 if (ce->name) {
     408       65872 :                         ce->name = accel_new_interned_string(ce->name);
     409             :                 }
     410             : 
     411      149776 :                 for (j = 0; j < ce->properties_info.nNumUsed; j++) {
     412             :                         zend_property_info *info;
     413             : 
     414       83904 :                         q = ce->properties_info.arData + j;
     415      167808 :                         if (Z_TYPE(q->val) == IS_UNDEF) continue;
     416             : 
     417       83536 :                         info = (zend_property_info*)Z_PTR(q->val);
     418             : 
     419       83536 :                         if (q->key) {
     420       83536 :                                 q->key = accel_new_interned_string(q->key);
     421             :                         }
     422             : 
     423       83536 :                         if (info->name) {
     424       83536 :                                 info->name = accel_new_interned_string(info->name);
     425             :                         }
     426             :                 }
     427             : 
     428     1090384 :                 for (j = 0; j < ce->function_table.nNumUsed; j++) {
     429     1024512 :                         q = ce->function_table.arData + j;
     430     2049024 :                         if (Z_TYPE(q->val) == IS_UNDEF) continue;
     431     1024512 :                         if (q->key) {
     432     1024512 :                                 q->key = accel_new_interned_string(q->key);
     433             :                         }
     434     1024512 :                         if (Z_FUNC(q->val)->common.function_name) {
     435     1024512 :                                 Z_FUNC(q->val)->common.function_name = accel_new_interned_string(Z_FUNC(q->val)->common.function_name);
     436             :                         }
     437             :                 }
     438             : 
     439      499008 :                 for (j = 0; j < ce->constants_table.nNumUsed; j++) {
     440      433136 :                         q = ce->constants_table.arData + j;
     441      866272 :                         if (!Z_TYPE(q->val) == IS_UNDEF) continue;
     442           0 :                         if (q->key) {
     443           0 :                                 q->key = accel_new_interned_string(q->key);
     444             :                         }
     445             :                 }
     446             :         }
     447             : 
     448             :         /* constant hash keys */
     449      920368 :         for (idx = 0; idx < EG(zend_constants)->nNumUsed; idx++) {
     450      920000 :                 p = EG(zend_constants)->arData + idx;
     451     1840000 :                 if (!Z_TYPE(p->val) == IS_UNDEF) continue;
     452           0 :                 if (p->key) {
     453           0 :                         p->key = accel_new_interned_string(p->key);
     454             :                 }
     455             :         }
     456             : 
     457             :         /* auto globals hash keys and names */
     458        3680 :         for (idx = 0; idx < CG(auto_globals)->nNumUsed; idx++) {
     459             :                 zend_auto_global *auto_global;
     460             : 
     461        3312 :                 p = CG(auto_globals)->arData + idx;
     462        6624 :                 if (Z_TYPE(p->val) == IS_UNDEF) continue;
     463             : 
     464        3312 :                 auto_global = (zend_auto_global*)Z_PTR(p->val);;
     465             : 
     466        3312 :                 auto_global->name = accel_new_interned_string(auto_global->name);
     467        3312 :                 if (p->key) {
     468        3312 :                         p->key = accel_new_interned_string(p->key);
     469             :                 }
     470             :         }
     471         368 : }
     472             : #endif
     473             : 
     474           0 : static inline void accel_restart_enter(void)
     475             : {
     476             : #ifdef ZEND_WIN32
     477             :         INCREMENT(restart_in);
     478             : #else
     479             :         static const FLOCK_STRUCTURE(restart_in_progress, F_WRLCK, SEEK_SET, 2, 1);
     480             : 
     481           0 :         if (fcntl(lock_file, F_SETLK, &restart_in_progress) == -1) {
     482           0 :                 zend_accel_error(ACCEL_LOG_DEBUG, "RestartC(+1):  %s (%d)", strerror(errno), errno);
     483             :         }
     484             : #endif
     485           0 :         ZCSG(restart_in_progress) = 1;
     486           0 : }
     487             : 
     488           0 : static inline void accel_restart_leave(void)
     489             : {
     490             : #ifdef ZEND_WIN32
     491             :         ZCSG(restart_in_progress) = 0;
     492             :         DECREMENT(restart_in);
     493             : #else
     494             :         static const FLOCK_STRUCTURE(restart_finished, F_UNLCK, SEEK_SET, 2, 1);
     495             : 
     496           0 :         ZCSG(restart_in_progress) = 0;
     497           0 :         if (fcntl(lock_file, F_SETLK, &restart_finished) == -1) {
     498           0 :                 zend_accel_error(ACCEL_LOG_DEBUG, "RestartC(-1):  %s (%d)", strerror(errno), errno);
     499             :         }
     500             : #endif
     501           0 : }
     502             : 
     503           0 : static inline int accel_restart_is_active(void)
     504             : {
     505           0 :         if (ZCSG(restart_in_progress)) {
     506             : #ifndef ZEND_WIN32
     507           0 :                 FLOCK_STRUCTURE(restart_check, F_WRLCK, SEEK_SET, 2, 1);
     508             : 
     509           0 :                 if (fcntl(lock_file, F_GETLK, &restart_check) == -1) {
     510           0 :                         zend_accel_error(ACCEL_LOG_DEBUG, "RestartC:  %s (%d)", strerror(errno), errno);
     511           0 :                         return FAILURE;
     512             :                 }
     513           0 :                 if (restart_check.l_type == F_UNLCK) {
     514           0 :                         ZCSG(restart_in_progress) = 0;
     515           0 :                         return 0;
     516             :                 } else {
     517           0 :                         return 1;
     518             :                 }
     519             : #else
     520             :                 return LOCKVAL(restart_in) != 0;
     521             : #endif
     522             :         }
     523           0 :         return 0;
     524             : }
     525             : 
     526             : /* Creates a read lock for SHM access */
     527         368 : static inline void accel_activate_add(void)
     528             : {
     529             : #ifdef ZEND_WIN32
     530             :         INCREMENT(mem_usage);
     531             : #else
     532             :         static const FLOCK_STRUCTURE(mem_usage_lock, F_RDLCK, SEEK_SET, 1, 1);
     533             : 
     534         368 :         if (fcntl(lock_file, F_SETLK, &mem_usage_lock) == -1) {
     535           0 :                 zend_accel_error(ACCEL_LOG_DEBUG, "UpdateC(+1):  %s (%d)", strerror(errno), errno);
     536             :         }
     537             : #endif
     538         368 : }
     539             : 
     540             : /* Releases a lock for SHM access */
     541           0 : static inline void accel_deactivate_sub(void)
     542             : {
     543             : #ifdef ZEND_WIN32
     544             :         if (ZCG(counted)) {
     545             :                 DECREMENT(mem_usage);
     546             :                 ZCG(counted) = 0;
     547             :         }
     548             : #else
     549             :         static const FLOCK_STRUCTURE(mem_usage_unlock, F_UNLCK, SEEK_SET, 1, 1);
     550             : 
     551           0 :         if (fcntl(lock_file, F_SETLK, &mem_usage_unlock) == -1) {
     552           0 :                 zend_accel_error(ACCEL_LOG_DEBUG, "UpdateC(-1):  %s (%d)", strerror(errno), errno);
     553             :         }
     554             : #endif
     555           0 : }
     556             : 
     557         368 : static inline void accel_unlock_all(void)
     558             : {
     559             : #ifdef ZEND_WIN32
     560             :         accel_deactivate_sub();
     561             : #else
     562             :         static const FLOCK_STRUCTURE(mem_usage_unlock_all, F_UNLCK, SEEK_SET, 0, 0);
     563             : 
     564         368 :         if (fcntl(lock_file, F_SETLK, &mem_usage_unlock_all) == -1) {
     565           0 :                 zend_accel_error(ACCEL_LOG_DEBUG, "UnlockAll:  %s (%d)", strerror(errno), errno);
     566             :         }
     567             : #endif
     568         368 : }
     569             : 
     570             : #ifndef ZEND_WIN32
     571           0 : static inline void kill_all_lockers(struct flock *mem_usage_check)
     572             : {
     573           0 :         int tries = 10;
     574             : 
     575             :         /* so that other process won't try to force while we are busy cleaning up */
     576           0 :         ZCSG(force_restart_time) = 0;
     577           0 :         while (mem_usage_check->l_pid > 0) {
     578           0 :                 while (tries--) {
     579           0 :                         zend_accel_error(ACCEL_LOG_INFO, "Killed locker %d", mem_usage_check->l_pid);
     580           0 :                         if (kill(mem_usage_check->l_pid, SIGKILL)) {
     581           0 :                                 break;
     582             :                         }
     583             :                         /* give it a chance to die */
     584           0 :                         usleep(20000);
     585           0 :                         if (kill(mem_usage_check->l_pid, 0)) {
     586             :                                 /* can't kill it */
     587           0 :                                 break;
     588             :                         }
     589           0 :                         usleep(10000);
     590             :                 }
     591           0 :                 if (!tries) {
     592           0 :                         zend_accel_error(ACCEL_LOG_INFO, "Can't kill %d after 20 tries!", mem_usage_check->l_pid);
     593           0 :                         ZCSG(force_restart_time) = time(NULL); /* restore forced restart request */
     594             :                 }
     595             : 
     596           0 :                 mem_usage_check->l_type = F_WRLCK;
     597           0 :                 mem_usage_check->l_whence = SEEK_SET;
     598           0 :                 mem_usage_check->l_start = 1;
     599           0 :                 mem_usage_check->l_len = 1;
     600           0 :                 mem_usage_check->l_pid = -1;
     601           0 :                 if (fcntl(lock_file, F_GETLK, mem_usage_check) == -1) {
     602           0 :                         zend_accel_error(ACCEL_LOG_DEBUG, "KLockers:  %s (%d)", strerror(errno), errno);
     603           0 :                         break;
     604             :                 }
     605             : 
     606           0 :                 if (mem_usage_check->l_type == F_UNLCK || mem_usage_check->l_pid <= 0) {
     607             :                         break;
     608             :                 }
     609             :         }
     610           0 : }
     611             : #endif
     612             : 
     613           0 : static inline int accel_is_inactive(void)
     614             : {
     615             : #ifdef ZEND_WIN32
     616             :         if (LOCKVAL(mem_usage) == 0) {
     617             :                 return SUCCESS;
     618             :         }
     619             : #else
     620           0 :         FLOCK_STRUCTURE(mem_usage_check, F_WRLCK, SEEK_SET, 1, 1);
     621             : 
     622           0 :         mem_usage_check.l_pid = -1;
     623           0 :         if (fcntl(lock_file, F_GETLK, &mem_usage_check) == -1) {
     624           0 :                 zend_accel_error(ACCEL_LOG_DEBUG, "UpdateC:  %s (%d)", strerror(errno), errno);
     625           0 :                 return FAILURE;
     626             :         }
     627           0 :         if (mem_usage_check.l_type == F_UNLCK) {
     628           0 :                 return SUCCESS;
     629             :         }
     630             : 
     631           0 :         if (ZCG(accel_directives).force_restart_timeout
     632           0 :                 && ZCSG(force_restart_time)
     633           0 :                 && time(NULL) >= ZCSG(force_restart_time)) {
     634           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);
     635           0 :                 kill_all_lockers(&mem_usage_check);
     636             : 
     637           0 :                 return FAILURE; /* next request should be able to restart it */
     638             :         }
     639             : #endif
     640             : 
     641           0 :         return FAILURE;
     642             : }
     643             : 
     644          34 : static int zend_get_stream_timestamp(const char *filename, zend_stat_t *statbuf)
     645             : {
     646             :         php_stream_wrapper *wrapper;
     647             :         php_stream_statbuf stream_statbuf;
     648             :         int ret, er;
     649             : 
     650          34 :         if (!filename) {
     651           0 :                 return FAILURE;
     652             :         }
     653             : 
     654          34 :         wrapper = php_stream_locate_url_wrapper(filename, NULL, STREAM_LOCATE_WRAPPERS_ONLY);
     655          34 :         if (!wrapper) {
     656           0 :                 return FAILURE;
     657             :         }
     658          34 :         if (!wrapper->wops || !wrapper->wops->url_stat) {
     659           0 :                 statbuf->st_mtime = 1;
     660           0 :                 return SUCCESS; /* anything other than 0 is considered to be a valid timestamp */
     661             :         }
     662             : 
     663          34 :         er = EG(error_reporting);
     664          34 :         EG(error_reporting) = 0;
     665          34 :         zend_try {
     666          34 :                 ret = wrapper->wops->url_stat(wrapper, (char*)filename, PHP_STREAM_URL_STAT_QUIET, &stream_statbuf, NULL);
     667           0 :         } zend_catch {
     668           0 :                 ret = -1;
     669          34 :         } zend_end_try();
     670          34 :         EG(error_reporting) = er;
     671             : 
     672          34 :         if (ret != 0) {
     673           0 :                 return FAILURE;
     674             :         }
     675             : 
     676          34 :         *statbuf = stream_statbuf.sb;
     677          34 :         return SUCCESS;
     678             : }
     679             : 
     680             : #if ZEND_WIN32
     681             : static accel_time_t zend_get_file_handle_timestamp_win(zend_file_handle *file_handle, size_t *size)
     682             : {
     683             :         static unsigned __int64 utc_base = 0;
     684             :         static FILETIME utc_base_ft;
     685             :         WIN32_FILE_ATTRIBUTE_DATA fdata;
     686             : 
     687             :         if (!file_handle->opened_path) {
     688             :                 return 0;
     689             :         }
     690             : 
     691             :         if (!utc_base) {
     692             :                 SYSTEMTIME st;
     693             : 
     694             :                 st.wYear = 1970;
     695             :                 st.wMonth = 1;
     696             :                 st.wDay = 1;
     697             :                 st.wHour = 0;
     698             :                 st.wMinute = 0;
     699             :                 st.wSecond = 0;
     700             :                 st.wMilliseconds = 0;
     701             : 
     702             :                 SystemTimeToFileTime (&st, &utc_base_ft);
     703             :                 utc_base = (((unsigned __int64)utc_base_ft.dwHighDateTime) << 32) + utc_base_ft.dwLowDateTime;
     704             :     }
     705             : 
     706             :         if (GetFileAttributesEx(file_handle->opened_path, GetFileExInfoStandard, &fdata) != 0) {
     707             :                 unsigned __int64 ftime;
     708             : 
     709             :                 if (CompareFileTime (&fdata.ftLastWriteTime, &utc_base_ft) < 0) {
     710             :                         return 0;
     711             :                 }
     712             : 
     713             :                 ftime = (((unsigned __int64)fdata.ftLastWriteTime.dwHighDateTime) << 32) + fdata.ftLastWriteTime.dwLowDateTime - utc_base;
     714             :                 ftime /= 10000000L;
     715             : 
     716             :                 if (size) {
     717             :                         *size = (size_t)((((unsigned __int64)fdata.nFileSizeHigh) << 32) + (unsigned __int64)fdata.nFileSizeLow);
     718             :                 }
     719             :                 return (accel_time_t)ftime;
     720             :         }
     721             :         return 0;
     722             : }
     723             : #endif
     724             : 
     725         423 : static accel_time_t zend_get_file_handle_timestamp(zend_file_handle *file_handle, size_t *size)
     726             : {
     727             :         zend_stat_t statbuf;
     728             : #ifdef ZEND_WIN32
     729             :         accel_time_t res;
     730             : #endif
     731             : 
     732         423 :         if (sapi_module.get_stat &&
     733           0 :             !EG(current_execute_data) &&
     734           0 :             file_handle->filename == SG(request_info).path_translated) {
     735             : 
     736           0 :                 zend_stat_t *tmpbuf = sapi_module.get_stat();
     737             : 
     738           0 :                 if (tmpbuf) {
     739           0 :                         if (size) {
     740           0 :                                 *size = tmpbuf->st_size;
     741             :                         }
     742           0 :                         return tmpbuf->st_mtime;
     743             :                 }
     744             :         }
     745             : 
     746             : #ifdef ZEND_WIN32
     747             :         res = zend_get_file_handle_timestamp_win(file_handle, size);
     748             :         if (res) {
     749             :                 return res;
     750             :         }
     751             : #endif
     752             : 
     753         423 :         switch (file_handle->type) {
     754             :                 case ZEND_HANDLE_FD:
     755           0 :                         if (zend_fstat(file_handle->handle.fd, &statbuf) == -1) {
     756           0 :                                 return 0;
     757             :                         }
     758           0 :                         break;
     759             :                 case ZEND_HANDLE_FP:
     760           2 :                         if (zend_fstat(fileno(file_handle->handle.fp), &statbuf) == -1) {
     761           0 :                                 if (zend_get_stream_timestamp(file_handle->filename, &statbuf) != SUCCESS) {
     762           0 :                                         return 0;
     763             :                                 }
     764             :                         }
     765           2 :                         break;
     766             :                 case ZEND_HANDLE_FILENAME:
     767             :                 case ZEND_HANDLE_MAPPED:
     768             :                         {
     769         420 :                                 char *file_path = file_handle->opened_path;
     770             : 
     771         420 :                                 if (file_path) {
     772         420 :                                         if (is_stream_path(file_path)) {
     773          34 :                                                 if (zend_get_stream_timestamp(file_path, &statbuf) == SUCCESS) {
     774          34 :                                                         break;
     775             :                                                 }
     776             :                                         }
     777         386 :                                         if (VCWD_STAT(file_path, &statbuf) != -1) {
     778         386 :                                                 break;
     779             :                                         }
     780             :                                 }
     781             : 
     782           0 :                                 if (zend_get_stream_timestamp(file_handle->filename, &statbuf) != SUCCESS) {
     783           0 :                                         return 0;
     784             :                                 }
     785           0 :                                 break;
     786             :                         }
     787             :                 case ZEND_HANDLE_STREAM:
     788             :                         {
     789           1 :                                 php_stream *stream = (php_stream *)file_handle->handle.stream.handle;
     790             :                                 php_stream_statbuf sb;
     791             :                                 int ret, er;
     792             : 
     793           3 :                                 if (!stream ||
     794           1 :                                     !stream->ops ||
     795           1 :                                     !stream->ops->stat) {
     796           0 :                                         return 0;
     797             :                                 }
     798             : 
     799           1 :                                 er = EG(error_reporting);
     800           1 :                                 EG(error_reporting) = 0;
     801           1 :                                 zend_try {
     802           1 :                                         ret = stream->ops->stat(stream, &sb);
     803           0 :                                 } zend_catch {
     804           0 :                                         ret = -1;
     805           1 :                                 } zend_end_try();
     806           1 :                                 EG(error_reporting) = er;
     807           1 :                                 if (ret != 0) {
     808           0 :                                         return 0;
     809             :                                 }
     810             : 
     811           1 :                                 statbuf = sb.sb;
     812             :                         }
     813           1 :                         break;
     814             : 
     815             :                 default:
     816           0 :                         return 0;
     817             :         }
     818             : 
     819         423 :         if (size) {
     820           0 :                 *size = statbuf.st_size;
     821             :         }
     822         423 :         return statbuf.st_mtime;
     823             : }
     824             : 
     825           0 : static inline int do_validate_timestamps(zend_persistent_script *persistent_script, zend_file_handle *file_handle)
     826             : {
     827             :         zend_file_handle ps_handle;
     828           0 :         char *full_path_ptr = NULL;
     829             : 
     830             :         /** check that the persistent script is indeed the same file we cached
     831             :          * (if part of the path is a symlink than it possible that the user will change it)
     832             :          * See bug #15140
     833             :          */
     834           0 :         if (file_handle->opened_path) {
     835           0 :                 if (strcmp(persistent_script->full_path->val, file_handle->opened_path) != 0) {
     836           0 :                         return FAILURE;
     837             :                 }
     838             :         } else {
     839           0 :                 full_path_ptr = accelerator_orig_zend_resolve_path(file_handle->filename, strlen(file_handle->filename));
     840           0 :                 if (full_path_ptr && strcmp(persistent_script->full_path->val, full_path_ptr) != 0) {
     841           0 :                         efree(full_path_ptr);
     842           0 :                         return FAILURE;
     843             :                 }
     844           0 :                 file_handle->opened_path = full_path_ptr;
     845             :         }
     846             : 
     847           0 :         if (persistent_script->timestamp == 0) {
     848           0 :                 if (full_path_ptr) {
     849           0 :                         efree(full_path_ptr);
     850           0 :                         file_handle->opened_path = NULL;
     851             :                 }
     852           0 :                 return FAILURE;
     853             :         }
     854             : 
     855           0 :         if (zend_get_file_handle_timestamp(file_handle, NULL) == persistent_script->timestamp) {
     856           0 :                 if (full_path_ptr) {
     857           0 :                         efree(full_path_ptr);
     858           0 :                         file_handle->opened_path = NULL;
     859             :                 }
     860           0 :                 return SUCCESS;
     861             :         }
     862           0 :         if (full_path_ptr) {
     863           0 :                 efree(full_path_ptr);
     864           0 :                 file_handle->opened_path = NULL;
     865             :         }
     866             : 
     867           0 :         ps_handle.type = ZEND_HANDLE_FILENAME;
     868           0 :         ps_handle.filename = persistent_script->full_path->val;
     869           0 :         ps_handle.opened_path = persistent_script->full_path->val;
     870             : 
     871           0 :         if (zend_get_file_handle_timestamp(&ps_handle, NULL) == persistent_script->timestamp) {
     872           0 :                 return SUCCESS;
     873             :         }
     874             : 
     875           0 :         return FAILURE;
     876             : }
     877             : 
     878           0 : int validate_timestamp_and_record(zend_persistent_script *persistent_script, zend_file_handle *file_handle)
     879             : {
     880           0 :         if (ZCG(accel_directives).revalidate_freq &&
     881           0 :             persistent_script->dynamic_members.revalidate >= ZCG(request_time)) {
     882           0 :                 return SUCCESS;
     883           0 :         } else if (do_validate_timestamps(persistent_script, file_handle) == FAILURE) {
     884           0 :                 return FAILURE;
     885             :         } else {
     886           0 :                 persistent_script->dynamic_members.revalidate = ZCG(request_time) + ZCG(accel_directives).revalidate_freq;
     887           0 :                 return SUCCESS;
     888             :         }
     889             : }
     890             : 
     891         422 : static unsigned int zend_accel_script_checksum(zend_persistent_script *persistent_script)
     892             : {
     893         422 :         signed char *mem = (signed char*)persistent_script->mem;
     894         422 :         size_t size = persistent_script->size;
     895         422 :         size_t persistent_script_check_block_size = ((char *)&(persistent_script->dynamic_members)) - (char *)persistent_script;
     896         422 :         unsigned int checksum = ADLER32_INIT;
     897             : 
     898         422 :         if (mem < (signed char*)persistent_script) {
     899           0 :                 checksum = zend_adler32(checksum, mem, (signed char*)persistent_script - mem);
     900           0 :                 size -= (signed char*)persistent_script - mem;
     901           0 :                 mem  += (signed char*)persistent_script - mem;
     902             :         }
     903             : 
     904         422 :         zend_adler32(checksum, mem, persistent_script_check_block_size);
     905         422 :         mem  += sizeof(*persistent_script);
     906         422 :         size -= sizeof(*persistent_script);
     907             : 
     908         422 :         if (size > 0) {
     909         422 :                 checksum = zend_adler32(checksum, mem, size);
     910             :         }
     911         422 :         return checksum;
     912             : }
     913             : 
     914             : /* Instead of resolving full real path name each time we need to identify file,
     915             :  * we create a key that consist from requested file name, current working
     916             :  * directory, current include_path, etc */
     917        1171 : char *accel_make_persistent_key_ex(zend_file_handle *file_handle, int path_length, int *key_len)
     918             : {
     919             :     int key_length;
     920             : 
     921             :     /* CWD and include_path don't matter for absolute file names and streams */
     922        2428 :     if (ZCG(accel_directives).use_cwd &&
     923        1171 :         !IS_ABSOLUTE_PATH(file_handle->filename, path_length) &&
     924          57 :         !is_stream_path(file_handle->filename)) {
     925          29 :         char *include_path = NULL;
     926          29 :         int include_path_len = 0;
     927          29 :         const char *parent_script = NULL;
     928          29 :         int parent_script_len = 0;
     929          29 :         int cur_len = 0;
     930             :         int cwd_len;
     931             :         char *cwd;
     932             : 
     933          29 :         if ((cwd = accel_getcwd(&cwd_len)) == NULL) {
     934             :             /* we don't handle this well for now. */
     935           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);
     936           0 :             if (file_handle->opened_path) {
     937           0 :                 cwd = file_handle->opened_path;
     938           0 :                         cwd_len = strlen(cwd);
     939             :             } else {
     940           0 :                                 ZCG(key_len) = 0;
     941           0 :                 return NULL;
     942             :             }
     943             :         }
     944             : 
     945          29 :                 if (ZCG(include_path_key)) {
     946          29 :                         include_path = ZCG(include_path_key);
     947          29 :                         include_path_len = 1;
     948             :                 } else {
     949           0 :                 include_path = ZCG(include_path);
     950           0 :             include_path_len = ZCG(include_path_len);
     951           0 :                         if (ZCG(include_path_check) &&
     952           0 :                             ZCG(enabled) && accel_startup_ok &&
     953           0 :                             (ZCG(counted) || ZCSG(accelerator_enabled)) &&
     954           0 :                             !zend_accel_hash_find(&ZCSG(include_paths), ZCG(include_path), ZCG(include_path_len)) &&
     955           0 :                             !zend_accel_hash_is_full(&ZCSG(include_paths))) {
     956             : 
     957           0 :                                 SHM_UNPROTECT();
     958           0 :                                 zend_shared_alloc_lock();
     959             : 
     960           0 :                                 ZCG(include_path_key) = zend_accel_hash_find(&ZCSG(include_paths), ZCG(include_path), ZCG(include_path_len));
     961           0 :                                 if (ZCG(include_path_key)) {
     962           0 :                                         include_path = ZCG(include_path_key);
     963           0 :                                         include_path_len = 1;
     964           0 :                                 } else if (!zend_accel_hash_is_full(&ZCSG(include_paths))) {
     965             :                                         char *key;
     966             : 
     967           0 :                                         key = zend_shared_alloc(ZCG(include_path_len) + 2);
     968           0 :                                         if (key) {
     969           0 :                                                 memcpy(key, ZCG(include_path), ZCG(include_path_len) + 1);
     970           0 :                                                 key[ZCG(include_path_len) + 1] = 'A' + ZCSG(include_paths).num_entries;
     971           0 :                                                 ZCG(include_path_key) = key + ZCG(include_path_len) + 1;
     972           0 :                                                 zend_accel_hash_update(&ZCSG(include_paths), key, ZCG(include_path_len), 0, ZCG(include_path_key));
     973           0 :                                                 include_path = ZCG(include_path_key);
     974           0 :                                                 include_path_len = 1;
     975             :                                         } else {
     976           0 :                                                 zend_accel_schedule_restart_if_necessary(ACCEL_RESTART_OOM);
     977             :                                         }
     978             :                 }
     979             : 
     980           0 :                                 zend_shared_alloc_unlock();
     981           0 :                                 SHM_PROTECT();
     982             :                         }
     983             :                 }
     984             : 
     985             :         /* Here we add to the key the parent script directory,
     986             :            since fopen_wrappers from version 4.0.7 use current script's path
     987             :            in include path too.
     988             :         */
     989          87 :         if (EG(current_execute_data) &&
     990          29 :             (parent_script = zend_get_executed_filename()) != NULL &&
     991          29 :                 parent_script[0] != '[') {
     992             : 
     993          29 :             parent_script_len = strlen(parent_script);
     994         578 :             while ((--parent_script_len > 0) && !IS_SLASH(parent_script[parent_script_len]));
     995             :         }
     996             : 
     997             :         /* Calculate key length */
     998          29 :         key_length = cwd_len + path_length + include_path_len + 2;
     999          29 :         if (parent_script_len) {
    1000          29 :             key_length += parent_script_len + 1;
    1001             :         }
    1002             : 
    1003             :         /* Generate key
    1004             :          * Note - the include_path must be the last element in the key,
    1005             :          * since in itself, it may include colons (which we use to separate
    1006             :          * different components of the key)
    1007             :          */
    1008          29 :                 if ((size_t)key_length >= sizeof(ZCG(key))) {
    1009           0 :                         ZCG(key_len) = 0;
    1010           0 :                         return NULL;
    1011             :                 }
    1012          29 :                 memcpy(ZCG(key), cwd, cwd_len);
    1013          29 :                 ZCG(key)[cwd_len] = ':';
    1014             : 
    1015          29 :                 memcpy(ZCG(key) + cwd_len + 1, file_handle->filename, path_length);
    1016             : 
    1017          29 :                 ZCG(key)[cwd_len + 1 + path_length] = ':';
    1018             : 
    1019          29 :         cur_len = cwd_len + 1 + path_length + 1;
    1020             : 
    1021          29 :         if (parent_script_len) {
    1022          29 :                         memcpy(ZCG(key) + cur_len, parent_script, parent_script_len);
    1023          29 :             cur_len += parent_script_len;
    1024          29 :                         ZCG(key)[cur_len] = ':';
    1025          29 :             cur_len++;
    1026             :         }
    1027          29 :                 memcpy(ZCG(key) + cur_len, include_path, include_path_len);
    1028          29 :                 ZCG(key)[key_length] = '\0';
    1029             :     } else {
    1030             :         /* not use_cwd */
    1031        1142 :         key_length = path_length;
    1032        1142 :                 if ((size_t)key_length >= sizeof(ZCG(key))) {
    1033           0 :                         ZCG(key_len) = 0;
    1034           0 :                         return NULL;
    1035             :                 }
    1036        1142 :                 memcpy(ZCG(key), file_handle->filename, key_length + 1);
    1037             :     }
    1038             : 
    1039        1171 :         *key_len = ZCG(key_len) = key_length;
    1040        1171 :         return ZCG(key);
    1041             : }
    1042             : 
    1043         425 : static inline char *accel_make_persistent_key(zend_file_handle *file_handle, int *key_len)
    1044             : {
    1045         425 :         return accel_make_persistent_key_ex(file_handle, strlen(file_handle->filename), key_len);
    1046             : }
    1047             : 
    1048           0 : int zend_accel_invalidate(const char *filename, int filename_len, zend_bool force)
    1049             : {
    1050             :         char *realpath;
    1051             :         zend_persistent_script *persistent_script;
    1052             : 
    1053           0 :         if (!ZCG(enabled) || !accel_startup_ok || !ZCSG(accelerator_enabled) || accelerator_shm_read_lock() != SUCCESS) {
    1054           0 :                 return FAILURE;
    1055             :         }
    1056             : 
    1057           0 :         realpath = accelerator_orig_zend_resolve_path(filename, filename_len);
    1058             : 
    1059           0 :         if (!realpath) {
    1060           0 :                 return FAILURE;
    1061             :         }
    1062             : 
    1063           0 :         persistent_script = zend_accel_hash_find(&ZCSG(hash), realpath, strlen(realpath));
    1064           0 :         if (persistent_script && !persistent_script->corrupted) {
    1065             :                 zend_file_handle file_handle;
    1066             : 
    1067           0 :                 file_handle.type = ZEND_HANDLE_FILENAME;
    1068           0 :                 file_handle.filename = realpath;
    1069           0 :                 file_handle.opened_path = realpath;
    1070             : 
    1071           0 :                 if (force ||
    1072           0 :                         !ZCG(accel_directives).validate_timestamps ||
    1073           0 :                         do_validate_timestamps(persistent_script, &file_handle) == FAILURE) {
    1074           0 :                         SHM_UNPROTECT();
    1075           0 :                         zend_shared_alloc_lock();
    1076           0 :                         if (!persistent_script->corrupted) {
    1077           0 :                                 persistent_script->corrupted = 1;
    1078           0 :                                 persistent_script->timestamp = 0;
    1079           0 :                                 ZSMMG(wasted_shared_memory) += persistent_script->dynamic_members.memory_consumption;
    1080           0 :                                 if (ZSMMG(memory_exhausted)) {
    1081             :                                         zend_accel_restart_reason reason =
    1082           0 :                                                 zend_accel_hash_is_full(&ZCSG(hash)) ? ACCEL_RESTART_HASH : ACCEL_RESTART_OOM;
    1083           0 :                                         zend_accel_schedule_restart_if_necessary(reason);
    1084             :                                 }
    1085             :                         }
    1086           0 :                         zend_shared_alloc_unlock();
    1087           0 :                         SHM_PROTECT();
    1088             :                 }
    1089             :         }
    1090             : 
    1091           0 :         accelerator_shm_read_unlock();
    1092           0 :         efree(realpath);
    1093             : 
    1094           0 :         return SUCCESS;
    1095             : }
    1096             : 
    1097             : /* Adds another key for existing cached script */
    1098           0 : static void zend_accel_add_key(char *key, unsigned int key_length, zend_accel_hash_entry *bucket)
    1099             : {
    1100           0 :         if (!zend_accel_hash_find(&ZCSG(hash), key, key_length)) {
    1101           0 :                 if (zend_accel_hash_is_full(&ZCSG(hash))) {
    1102           0 :                         zend_accel_error(ACCEL_LOG_DEBUG, "No more entries in hash table!");
    1103           0 :                         ZSMMG(memory_exhausted) = 1;
    1104           0 :                         zend_accel_schedule_restart_if_necessary(ACCEL_RESTART_HASH);
    1105             :                 } else {
    1106           0 :                         char *new_key = zend_shared_alloc(key_length + 1);
    1107           0 :                         if (new_key) {
    1108           0 :                                 memcpy(new_key, key, key_length + 1);
    1109           0 :                                 if (zend_accel_hash_update(&ZCSG(hash), new_key, key_length, 1, bucket)) {
    1110           0 :                                         zend_accel_error(ACCEL_LOG_INFO, "Added key '%s'", new_key);
    1111             :                                 }
    1112             :                         } else {
    1113           0 :                                 zend_accel_schedule_restart_if_necessary(ACCEL_RESTART_OOM);
    1114             :                         }
    1115             :                 }
    1116             :         }
    1117           0 : }
    1118             : 
    1119         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)
    1120             : {
    1121             :         zend_accel_hash_entry *bucket;
    1122             :         uint memory_used;
    1123             : 
    1124             :         /* Check if script may be stored in shared memory */
    1125         422 :         if (!zend_accel_script_persistable(new_persistent_script)) {
    1126           0 :                 return new_persistent_script;
    1127             :         }
    1128             : 
    1129         422 :         if (!zend_accel_script_optimize(new_persistent_script)) {
    1130           0 :                 return new_persistent_script;
    1131             :         }
    1132             : 
    1133             :         /* exclusive lock */
    1134         422 :         zend_shared_alloc_lock();
    1135             : 
    1136         422 :         if (zend_accel_hash_is_full(&ZCSG(hash))) {
    1137           0 :                 zend_accel_error(ACCEL_LOG_DEBUG, "No more entries in hash table!");
    1138           0 :                 ZSMMG(memory_exhausted) = 1;
    1139           0 :                 zend_accel_schedule_restart_if_necessary(ACCEL_RESTART_HASH);
    1140           0 :                 zend_shared_alloc_unlock();
    1141           0 :                 return new_persistent_script;
    1142             :         }
    1143             : 
    1144             :         /* Check if we still need to put the file into the cache (may be it was
    1145             :          * already stored by another process. This final check is done under
    1146             :          * exclusive lock) */
    1147         422 :         bucket = zend_accel_hash_find_entry(&ZCSG(hash), new_persistent_script->full_path->val, new_persistent_script->full_path->len);
    1148         422 :         if (bucket) {
    1149           0 :                 zend_persistent_script *existing_persistent_script = (zend_persistent_script *)bucket->data;
    1150             : 
    1151           0 :                 if (!existing_persistent_script->corrupted) {
    1152           0 :                         if (!ZCG(accel_directives).revalidate_path &&
    1153           0 :                             (!ZCG(accel_directives).validate_timestamps ||
    1154           0 :                              (new_persistent_script->timestamp == existing_persistent_script->timestamp))) {
    1155           0 :                                 zend_accel_add_key(key, key_length, bucket);
    1156             :                         }
    1157           0 :                         zend_shared_alloc_unlock();
    1158           0 :                         return new_persistent_script;
    1159             :                 }
    1160             :         }
    1161             : 
    1162             :         /* Calculate the required memory size */
    1163         422 :         memory_used = zend_accel_script_persist_calc(new_persistent_script, key, key_length);
    1164             : 
    1165             :         /* Allocate shared memory */
    1166         422 :         ZCG(mem) = zend_shared_alloc(memory_used);
    1167         422 :         if (!ZCG(mem)) {
    1168           0 :                 zend_accel_schedule_restart_if_necessary(ACCEL_RESTART_OOM);
    1169           0 :                 zend_shared_alloc_unlock();
    1170           0 :                 return new_persistent_script;
    1171             :         }
    1172             : 
    1173             :         /* Copy into shared memory */
    1174         422 :         new_persistent_script = zend_accel_script_persist(new_persistent_script, &key, key_length);
    1175             : 
    1176             :         /* Consistency check */
    1177         422 :         if ((char*)new_persistent_script->mem + new_persistent_script->size != (char*)ZCG(mem)) {
    1178           0 :                 zend_accel_error(
    1179           0 :                         ((char*)new_persistent_script->mem + new_persistent_script->size < (char*)ZCG(mem)) ? ACCEL_LOG_ERROR : ACCEL_LOG_WARNING,
    1180             :                         "Internal error: wrong size calculation: %s start=0x%08x, end=0x%08x, real=0x%08x\n",
    1181           0 :                         new_persistent_script->full_path->val,
    1182             :                         new_persistent_script->mem,
    1183             :                         (char *)new_persistent_script->mem + new_persistent_script->size,
    1184             :                         ZCG(mem));
    1185             :         }
    1186             : 
    1187         422 :         new_persistent_script->dynamic_members.checksum = zend_accel_script_checksum(new_persistent_script);
    1188             : 
    1189             :         /* store script structure in the hash table */
    1190         422 :         bucket = zend_accel_hash_update(&ZCSG(hash), new_persistent_script->full_path->val, new_persistent_script->full_path->len, 0, new_persistent_script);
    1191         422 :         if (bucket) {
    1192         422 :                 zend_accel_error(ACCEL_LOG_INFO, "Cached script '%s'", new_persistent_script->full_path);
    1193        1614 :                 if (!ZCG(accel_directives).revalidate_path &&
    1194             :                     /* key may contain non-persistent PHAR aliases (see issues #115 and #149) */
    1195         422 :                     memcmp(key, "phar://", sizeof("phar://") - 1) != 0 &&
    1196         395 :                     (new_persistent_script->full_path->len != key_length ||
    1197         375 :                      memcmp(new_persistent_script->full_path->val, key, key_length) != 0)) {
    1198             :                         /* link key to the same persistent script in hash table */
    1199          20 :                         if (zend_accel_hash_update(&ZCSG(hash), key, key_length, 1, bucket)) {
    1200          20 :                                 zend_accel_error(ACCEL_LOG_INFO, "Added key '%s'", key);
    1201             :                         } else {
    1202           0 :                                 zend_accel_error(ACCEL_LOG_DEBUG, "No more entries in hash table!");
    1203           0 :                                 ZSMMG(memory_exhausted) = 1;
    1204           0 :                                 zend_accel_schedule_restart_if_necessary(ACCEL_RESTART_HASH);
    1205             :                         }
    1206             :                 }
    1207             :         }
    1208             : 
    1209         422 :         new_persistent_script->dynamic_members.memory_consumption = ZEND_ALIGNED_SIZE(new_persistent_script->size);
    1210             : 
    1211         422 :         zend_shared_alloc_unlock();
    1212             : 
    1213         422 :         *from_shared_memory = 1;
    1214         422 :         return new_persistent_script;
    1215             : }
    1216             : 
    1217             : static const struct jit_auto_global_info
    1218             : {
    1219             :     const char *name;
    1220             :     size_t len;
    1221             : } jit_auto_globals_info[] = {
    1222             :     { "_SERVER",  sizeof("_SERVER")-1},
    1223             :     { "_ENV",     sizeof("_ENV")-1},
    1224             :     { "_REQUEST", sizeof("_REQUEST")-1},
    1225             :     { "GLOBALS",  sizeof("GLOBALS")-1},
    1226             : };
    1227             : 
    1228             : static zend_string *jit_auto_globals_str[4];
    1229             : 
    1230         422 : static int zend_accel_get_auto_globals(void)
    1231             : {
    1232         422 :         int i, ag_size = (sizeof(jit_auto_globals_info) / sizeof(jit_auto_globals_info[0]));
    1233         422 :         int n = 1;
    1234         422 :         int mask = 0;
    1235             : 
    1236        2110 :         for (i = 0; i < ag_size ; i++) {
    1237        1688 :                 if (zend_hash_exists(&EG(symbol_table).ht, jit_auto_globals_str[i])) {
    1238         246 :                         mask |= n;
    1239             :                 }
    1240        1688 :                 n += n;
    1241             :         }
    1242         422 :         return mask;
    1243             : }
    1244             : 
    1245           0 : static int zend_accel_get_auto_globals_no_jit(void)
    1246             : {
    1247           0 :         if (zend_hash_exists(&EG(symbol_table).ht, jit_auto_globals_str[3])) {
    1248           0 :                 return 8;
    1249             :         }
    1250           0 :         return 0;
    1251             : }
    1252             : 
    1253         130 : static void zend_accel_set_auto_globals(int mask)
    1254             : {
    1255         130 :         int i, ag_size = (sizeof(jit_auto_globals_info) / sizeof(jit_auto_globals_info[0]));
    1256         130 :         int n = 1;
    1257             : 
    1258         650 :         for (i = 0; i < ag_size ; i++) {
    1259         520 :                 if ((mask & n) && !(ZCG(auto_globals_mask) & n)) {
    1260         193 :                         ZCG(auto_globals_mask) |= n;
    1261         193 :                         zend_is_auto_global(jit_auto_globals_str[i]);
    1262             :                 }
    1263         520 :                 n += n;
    1264             :         }
    1265         130 : }
    1266             : 
    1267         368 : static void zend_accel_init_auto_globals(void)
    1268             : {
    1269         368 :         int i, ag_size = (sizeof(jit_auto_globals_info) / sizeof(jit_auto_globals_info[0]));
    1270             : 
    1271        1840 :         for (i = 0; i < ag_size ; i++) {
    1272        2944 :                 jit_auto_globals_str[i] = zend_string_init(jit_auto_globals_info[i].name, jit_auto_globals_info[i].len, 1);
    1273        1472 :                 zend_string_hash_val(jit_auto_globals_str[i]);
    1274        1472 :                 jit_auto_globals_str[i] = accel_new_interned_string(jit_auto_globals_str[i]);
    1275             :         }
    1276         368 : }
    1277             : 
    1278         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)
    1279             : {
    1280             :         zend_persistent_script *new_persistent_script;
    1281             :         zend_op_array *orig_active_op_array;
    1282             :         HashTable *orig_function_table, *orig_class_table;
    1283             :         zval orig_user_error_handler;
    1284             :         zend_op_array *op_array;
    1285         423 :         int do_bailout = 0;
    1286         423 :         accel_time_t timestamp = 0;
    1287         423 :         uint32_t orig_compiler_options = 0;
    1288             : 
    1289             :     /* Try to open file */
    1290         423 :     if (file_handle->type == ZEND_HANDLE_FILENAME) {
    1291           0 :         if (accelerator_orig_zend_stream_open_function(file_handle->filename, file_handle) == SUCCESS) {
    1292             :                 /* key may be changed by zend_stream_open_function() */
    1293           0 :                 if (key == ZCG(key)) {
    1294           0 :                         key_length = ZCG(key_len);
    1295             :                 }
    1296             :         } else {
    1297           0 :                         *op_array_p = NULL;
    1298           0 :                         if (type == ZEND_REQUIRE) {
    1299           0 :                                 zend_message_dispatcher(ZMSG_FAILED_REQUIRE_FOPEN, file_handle->filename);
    1300           0 :                                 zend_bailout();
    1301             :                         } else {
    1302           0 :                                 zend_message_dispatcher(ZMSG_FAILED_INCLUDE_FOPEN, file_handle->filename);
    1303             :                         }
    1304           0 :                         return NULL;
    1305             :         }
    1306             :     }
    1307             : 
    1308             :         /* check blacklist right after ensuring that file was opened */
    1309         423 :         if (file_handle->opened_path && zend_accel_blacklist_is_blacklisted(&accel_blacklist, file_handle->opened_path)) {
    1310           0 :                 ZCSG(blacklist_misses)++;
    1311           0 :                 *op_array_p = accelerator_orig_compile_file(file_handle, type);
    1312           0 :                 return NULL;
    1313             :         }
    1314             : 
    1315         466 :         if (file_handle->type == ZEND_HANDLE_STREAM &&
    1316          35 :             (!strstr(file_handle->filename, ".phar") ||
    1317           8 :              strstr(file_handle->filename, "://"))) {
    1318             :                 char *buf;
    1319             :                 size_t size;
    1320             : 
    1321             :                 /* Stream callbacks needs to be called in context of original
    1322             :                  * function and class tables (see: https://bugs.php.net/bug.php?id=64353)
    1323             :                  */
    1324          34 :                 if (zend_stream_fixup(file_handle, &buf, &size) == FAILURE) {
    1325           0 :                         *op_array_p = NULL;
    1326           0 :                         return NULL;
    1327             :                 }
    1328             :         }
    1329             : 
    1330         423 :         if (ZCG(accel_directives).validate_timestamps ||
    1331           0 :             ZCG(accel_directives).file_update_protection ||
    1332           0 :             ZCG(accel_directives).max_file_size > 0) {
    1333         423 :                 size_t size = 0;
    1334             : 
    1335             :                 /* Obtain the file timestamps, *before* actually compiling them,
    1336             :                  * otherwise we have a race-condition.
    1337             :                  */
    1338         423 :                 timestamp = zend_get_file_handle_timestamp(file_handle, ZCG(accel_directives).max_file_size > 0 ? &size : NULL);
    1339             : 
    1340             :                 /* If we can't obtain a timestamp (that means file is possibly socket)
    1341             :                  *  we won't cache it
    1342             :                  */
    1343         423 :                 if (timestamp == 0) {
    1344           0 :                         *op_array_p = accelerator_orig_compile_file(file_handle, type);
    1345           0 :                         return NULL;
    1346             :                 }
    1347             : 
    1348             :                 /* check if file is too new (may be it's not written completely yet) */
    1349         423 :                 if (ZCG(accel_directives).file_update_protection &&
    1350           0 :                     (ZCG(request_time) - ZCG(accel_directives).file_update_protection < timestamp)) {
    1351           0 :                         *op_array_p = accelerator_orig_compile_file(file_handle, type);
    1352           0 :                         return NULL;
    1353             :                 }
    1354             : 
    1355         423 :                 if (ZCG(accel_directives).max_file_size > 0 && size > (size_t)ZCG(accel_directives).max_file_size) {
    1356           0 :                         ZCSG(blacklist_misses)++;
    1357           0 :                         *op_array_p = accelerator_orig_compile_file(file_handle, type);
    1358           0 :                         return NULL;
    1359             :                 }
    1360             :         }
    1361             : 
    1362         423 :         new_persistent_script = create_persistent_script();
    1363             : 
    1364             :         /* Save the original values for the op_array, function table and class table */
    1365         423 :         orig_active_op_array = CG(active_op_array);
    1366         423 :         orig_function_table = CG(function_table);
    1367         423 :         orig_class_table = CG(class_table);
    1368         423 :         ZVAL_COPY_VALUE(&orig_user_error_handler, &EG(user_error_handler));
    1369             : 
    1370             :         /* Override them with ours */
    1371         423 :         CG(function_table) = &ZCG(function_table);
    1372         423 :         EG(class_table) = CG(class_table) = &new_persistent_script->class_table;
    1373         423 :         ZVAL_UNDEF(&EG(user_error_handler));
    1374             : 
    1375         423 :         zend_try {
    1376         423 :                 orig_compiler_options = CG(compiler_options);
    1377         423 :                 CG(compiler_options) |= ZEND_COMPILE_HANDLE_OP_ARRAY;
    1378         423 :                 CG(compiler_options) |= ZEND_COMPILE_IGNORE_INTERNAL_CLASSES;
    1379         423 :                 CG(compiler_options) |= ZEND_COMPILE_DELAYED_BINDING;
    1380         423 :                 CG(compiler_options) |= ZEND_COMPILE_NO_CONSTANT_SUBSTITUTION;
    1381         423 :                 op_array = *op_array_p = accelerator_orig_compile_file(file_handle, type);
    1382         422 :                 CG(compiler_options) = orig_compiler_options;
    1383           1 :         } zend_catch {
    1384           1 :                 op_array = NULL;
    1385           1 :                 do_bailout = 1;
    1386           1 :                 CG(compiler_options) = orig_compiler_options;
    1387         423 :         } zend_end_try();
    1388             : 
    1389             :         /* Restore originals */
    1390         423 :         CG(active_op_array) = orig_active_op_array;
    1391         423 :         CG(function_table) = orig_function_table;
    1392         423 :         EG(class_table) = CG(class_table) = orig_class_table;
    1393         423 :         EG(user_error_handler) = orig_user_error_handler;
    1394             : 
    1395         423 :         if (!op_array) {
    1396             :                 /* compilation failed */
    1397           1 :                 free_persistent_script(new_persistent_script, 1);
    1398           1 :                 zend_accel_free_user_functions(&ZCG(function_table));
    1399           1 :                 if (do_bailout) {
    1400           1 :                         zend_bailout();
    1401             :                 }
    1402           0 :                 return NULL;
    1403             :         }
    1404             : 
    1405             :         /* Build the persistent_script structure.
    1406             :            Here we aren't sure we would store it, but we will need it
    1407             :            further anyway.
    1408             :         */
    1409         422 :         zend_accel_move_user_functions(&ZCG(function_table), &new_persistent_script->function_table);
    1410         422 :         new_persistent_script->main_op_array = *op_array;
    1411             : 
    1412         422 :         efree(op_array); /* we have valid persistent_script, so it's safe to free op_array */
    1413             : 
    1414             :     /* Fill in the ping_auto_globals_mask for the new script. If jit for auto globals is enabled we
    1415             :        will have to ping the used auto global variables before execution */
    1416         422 :         if (PG(auto_globals_jit)) {
    1417         422 :                 new_persistent_script->ping_auto_globals_mask = zend_accel_get_auto_globals();
    1418             :         } else {
    1419           0 :                 new_persistent_script->ping_auto_globals_mask = zend_accel_get_auto_globals_no_jit();
    1420             :         }
    1421             : 
    1422         422 :         if (ZCG(accel_directives).validate_timestamps) {
    1423             :                 /* Obtain the file timestamps, *before* actually compiling them,
    1424             :                  * otherwise we have a race-condition.
    1425             :                  */
    1426         422 :                 new_persistent_script->timestamp = timestamp;
    1427         422 :                 new_persistent_script->dynamic_members.revalidate = ZCG(request_time) + ZCG(accel_directives).revalidate_freq;
    1428             :         }
    1429             : 
    1430         422 :         if (file_handle->opened_path) {
    1431         844 :                 new_persistent_script->full_path = zend_string_init(file_handle->opened_path, strlen(file_handle->opened_path), 0);
    1432             :         } else {
    1433           0 :                 new_persistent_script->full_path = zend_string_init(file_handle->filename, strlen(file_handle->filename), 0);
    1434             :         }
    1435         422 :         zend_string_hash_val(new_persistent_script->full_path);
    1436             : 
    1437             :         /* Now persistent_script structure is ready in process memory */
    1438         422 :         return cache_script_in_shared_memory(new_persistent_script, key, key_length, from_shared_memory);
    1439             : }
    1440             : 
    1441             : /* zend_compile() replacement */
    1442         425 : zend_op_array *persistent_compile_file(zend_file_handle *file_handle, int type)
    1443             : {
    1444         425 :         zend_persistent_script *persistent_script = NULL;
    1445         425 :         char *key = NULL;
    1446             :         int key_length;
    1447             :         int from_shared_memory; /* if the script we've got is stored in SHM */
    1448             : 
    1449        2946 :         if (!file_handle->filename ||
    1450         850 :                 !ZCG(enabled) || !accel_startup_ok ||
    1451         793 :                 (!ZCG(counted) && !ZCSG(accelerator_enabled)) ||
    1452         425 :             (ZCSG(restart_in_progress) && accel_restart_is_active()) ||
    1453         425 :             (is_stream_path(file_handle->filename) &&
    1454          28 :              !is_cacheable_stream_path(file_handle->filename))) {
    1455             :                 /* The Accelerator is disabled, act as if without the Accelerator */
    1456           0 :                 return accelerator_orig_compile_file(file_handle, type);
    1457             :         }
    1458             : 
    1459             :         /* Make sure we only increase the currently running processes semaphore
    1460             :      * once each execution (this function can be called more than once on
    1461             :      * each execution)
    1462             :      */
    1463         425 :         if (!ZCG(counted)) {
    1464         368 :                 ZCG(counted) = 1;
    1465         368 :                 accel_activate_add();
    1466             :         }
    1467             : 
    1468             :         /* In case this callback is called from include_once, require_once or it's
    1469             :          * a main FastCGI request, the key must be already calculated, and cached
    1470             :          * persistent script already found */
    1471        2096 :         if ((EG(current_execute_data) == NULL &&
    1472         368 :              ZCG(cache_opline) == NULL &&
    1473         368 :              file_handle->filename == SG(request_info).path_translated &&
    1474         366 :              ZCG(cache_persistent_script)) ||
    1475         425 :             (EG(current_execute_data) &&
    1476          57 :              EG(current_execute_data)->func &&
    1477          57 :              ZEND_USER_CODE(EG(current_execute_data)->func->common.type) &&
    1478          30 :              EG(current_execute_data)->opline == ZCG(cache_opline) &&
    1479           0 :              EG(current_execute_data)->opline->opcode == ZEND_INCLUDE_OR_EVAL &&
    1480           0 :              (EG(current_execute_data)->opline->extended_value == ZEND_INCLUDE_ONCE ||
    1481           0 :               EG(current_execute_data)->opline->extended_value == ZEND_REQUIRE_ONCE))) {
    1482           0 :                 if (!ZCG(key_len)) {
    1483           0 :                         return accelerator_orig_compile_file(file_handle, type);
    1484             :                 }
    1485             :                 /* persistent script was already found by overridden open() or
    1486             :                  * resolve_path() callbacks */
    1487           0 :                 persistent_script = ZCG(cache_persistent_script);
    1488           0 :                 key = ZCG(key);
    1489           0 :                 key_length = ZCG(key_len);
    1490             :         } else {
    1491             :                 /* try to find cached script by key */
    1492         425 :                 if ((key = accel_make_persistent_key(file_handle, &key_length)) == NULL) {
    1493           0 :                         return accelerator_orig_compile_file(file_handle, type);
    1494             :                 }
    1495         425 :                 persistent_script = zend_accel_hash_find(&ZCSG(hash), key, key_length);
    1496         425 :                 if (!persistent_script) {
    1497             :                         /* try to find cached script by full real path */
    1498             :                         zend_accel_hash_entry *bucket;
    1499             : 
    1500             :                         /* open file to resolve the path */
    1501         475 :                     if (file_handle->type == ZEND_HANDLE_FILENAME &&
    1502          50 :                         accelerator_orig_zend_stream_open_function(file_handle->filename, file_handle) == FAILURE) {
    1503           2 :                                 if (type == ZEND_REQUIRE) {
    1504           0 :                                         zend_message_dispatcher(ZMSG_FAILED_REQUIRE_FOPEN, file_handle->filename);
    1505           0 :                                         zend_bailout();
    1506             :                                 } else {
    1507           2 :                                         zend_message_dispatcher(ZMSG_FAILED_INCLUDE_FOPEN, file_handle->filename);
    1508             :                                 }
    1509           2 :                                 return NULL;
    1510             :                     }
    1511             : 
    1512         846 :                         if (file_handle->opened_path &&
    1513         423 :                             (bucket = zend_accel_hash_find_entry(&ZCSG(hash), file_handle->opened_path, strlen(file_handle->opened_path))) != NULL) {
    1514             : 
    1515           0 :                                 persistent_script = (zend_persistent_script *)bucket->data;
    1516           0 :                                 if (!ZCG(accel_directives).revalidate_path &&
    1517           0 :                                     !persistent_script->corrupted) {
    1518           0 :                                 SHM_UNPROTECT();
    1519           0 :                                         zend_shared_alloc_lock();
    1520           0 :                                         zend_accel_add_key(key, key_length, bucket);
    1521           0 :                                         zend_shared_alloc_unlock();
    1522           0 :                                 SHM_PROTECT();
    1523             :                                 }
    1524             :                         }
    1525             :                 }
    1526             :         }
    1527             : 
    1528             :         /* clear cache */
    1529         423 :         ZCG(cache_opline) = NULL;
    1530         423 :         ZCG(cache_persistent_script) = NULL;
    1531             : 
    1532         423 :         if (persistent_script && persistent_script->corrupted) {
    1533           0 :                 persistent_script = NULL;
    1534             :         }
    1535             : 
    1536         423 :         SHM_UNPROTECT();
    1537             : 
    1538             :         /* If script is found then validate_timestamps if option is enabled */
    1539         423 :         if (persistent_script && ZCG(accel_directives).validate_timestamps) {
    1540           0 :                 if (validate_timestamp_and_record(persistent_script, file_handle) == FAILURE) {
    1541           0 :                         zend_shared_alloc_lock();
    1542           0 :                         if (!persistent_script->corrupted) {
    1543           0 :                                 persistent_script->corrupted = 1;
    1544           0 :                                 persistent_script->timestamp = 0;
    1545           0 :                                 ZSMMG(wasted_shared_memory) += persistent_script->dynamic_members.memory_consumption;
    1546           0 :                                 if (ZSMMG(memory_exhausted)) {
    1547             :                                         zend_accel_restart_reason reason =
    1548           0 :                                                 zend_accel_hash_is_full(&ZCSG(hash)) ? ACCEL_RESTART_HASH : ACCEL_RESTART_OOM;
    1549           0 :                                         zend_accel_schedule_restart_if_necessary(reason);
    1550             :                                 }
    1551             :                         }
    1552           0 :                         zend_shared_alloc_unlock();
    1553           0 :                         persistent_script = NULL;
    1554             :                 }
    1555             :         }
    1556             : 
    1557             :         /* if turned on - check the compiled script ADLER32 checksum */
    1558         423 :         if (persistent_script && ZCG(accel_directives).consistency_checks
    1559           0 :                 && persistent_script->dynamic_members.hits % ZCG(accel_directives).consistency_checks == 0) {
    1560             : 
    1561           0 :                 unsigned int checksum = zend_accel_script_checksum(persistent_script);
    1562           0 :                 if (checksum != persistent_script->dynamic_members.checksum ) {
    1563             :                         /* The checksum is wrong */
    1564           0 :                         zend_accel_error(ACCEL_LOG_INFO, "Checksum failed for '%s':  expected=0x%0.8X, found=0x%0.8X",
    1565             :                                                          persistent_script->full_path, persistent_script->dynamic_members.checksum, checksum);
    1566           0 :                         zend_shared_alloc_lock();
    1567           0 :                         if (!persistent_script->corrupted) {
    1568           0 :                                 persistent_script->corrupted = 1;
    1569           0 :                                 persistent_script->timestamp = 0;
    1570           0 :                                 ZSMMG(wasted_shared_memory) += persistent_script->dynamic_members.memory_consumption;
    1571           0 :                                 if (ZSMMG(memory_exhausted)) {
    1572             :                                         zend_accel_restart_reason reason =
    1573           0 :                                                 zend_accel_hash_is_full(&ZCSG(hash)) ? ACCEL_RESTART_HASH : ACCEL_RESTART_OOM;
    1574           0 :                                         zend_accel_schedule_restart_if_necessary(reason);
    1575             :                                 }
    1576             :                         }
    1577           0 :                         zend_shared_alloc_unlock();
    1578           0 :                         persistent_script = NULL;
    1579             :                 }
    1580             :         }
    1581             : 
    1582             :         /* If script was not found or invalidated by validate_timestamps */
    1583         423 :         if (!persistent_script) {
    1584         423 :                 uint32_t old_const_num = zend_hash_next_free_element(EG(zend_constants));
    1585             :                 zend_op_array *op_array;
    1586             : 
    1587             :                 /* Cache miss.. */
    1588         423 :                 ZCSG(misses)++;
    1589             : 
    1590             :                 /* No memory left. Behave like without the Accelerator */
    1591         423 :                 if (ZSMMG(memory_exhausted) || ZCSG(restart_pending)) {
    1592           0 :                         SHM_PROTECT();
    1593           0 :                         return accelerator_orig_compile_file(file_handle, type);
    1594             :                 }
    1595             : 
    1596             :                 /* Try and cache the script and assume that it is returned from_shared_memory.
    1597             :          * If it isn't compile_and_cache_file() changes the flag to 0
    1598             :          */
    1599         423 :         from_shared_memory = 0;
    1600         423 :                 persistent_script = compile_and_cache_file(file_handle, type, key, key_length, &op_array, &from_shared_memory);
    1601             : 
    1602             :                 /* Caching is disabled, returning op_array;
    1603             :                  * or something went wrong during compilation, returning NULL
    1604             :                  */
    1605         422 :                 if (!persistent_script) {
    1606           0 :                         SHM_PROTECT();
    1607           0 :                         return op_array;
    1608             :                 }
    1609         422 :                 if (from_shared_memory) {
    1610             :                         /* Delete immutable arrays moved into SHM */
    1611         422 :                         uint32_t new_const_num = zend_hash_next_free_element(EG(zend_constants));
    1612         844 :                         while (new_const_num > old_const_num) {
    1613           0 :                                 new_const_num--;
    1614           0 :                                 zend_hash_index_del(EG(zend_constants), new_const_num);
    1615             :                         }
    1616             :                 }
    1617             :         } else {
    1618             : 
    1619             : #if !ZEND_WIN32
    1620           0 :                 ZCSG(hits)++; /* TBFixed: may lose one hit */
    1621           0 :                 persistent_script->dynamic_members.hits++; /* see above */
    1622             : #else
    1623             :                 INCREMENT(hits);
    1624             :                 InterlockedIncrement64(&persistent_script->dynamic_members.hits);
    1625             : #endif
    1626             : 
    1627             :                 /* see bug #15471 (old BTS) */
    1628           0 :                 if (persistent_script->full_path) {
    1629           0 :                         if (!EG(current_execute_data) || !EG(current_execute_data)->opline ||
    1630           0 :                             !EG(current_execute_data)->func ||
    1631           0 :                             !ZEND_USER_CODE(EG(current_execute_data)->func->common.type) ||
    1632           0 :                             EG(current_execute_data)->opline->opcode != ZEND_INCLUDE_OR_EVAL ||
    1633           0 :                             (EG(current_execute_data)->opline->extended_value != ZEND_INCLUDE_ONCE &&
    1634           0 :                              EG(current_execute_data)->opline->extended_value != ZEND_REQUIRE_ONCE)) {
    1635           0 :                                 if (zend_hash_add_empty_element(&EG(included_files), persistent_script->full_path) != NULL) {
    1636             :                                         /* ext/phar has to load phar's metadata into memory */
    1637           0 :                                         if (strstr(persistent_script->full_path->val, ".phar") && !strstr(persistent_script->full_path->val, "://")) {
    1638             :                                                 php_stream_statbuf ssb;
    1639           0 :                                                 char *fname = emalloc(sizeof("phar://") + persistent_script->full_path->len);
    1640             : 
    1641           0 :                                                 memcpy(fname, "phar://", sizeof("phar://") - 1);
    1642           0 :                                                 memcpy(fname + sizeof("phar://") - 1, persistent_script->full_path->val, persistent_script->full_path->len + 1);
    1643           0 :                                                 php_stream_stat_path(fname, &ssb);
    1644           0 :                                                 efree(fname);
    1645             :                                         }
    1646             :                                 }
    1647             :                         }
    1648             :                 }
    1649           0 :                 zend_file_handle_dtor(file_handle);
    1650           0 :                 from_shared_memory = 1;
    1651             :         }
    1652             : 
    1653         422 :         persistent_script->dynamic_members.last_used = ZCG(request_time);
    1654             : 
    1655         422 :         SHM_PROTECT();
    1656             : 
    1657             :     /* Fetch jit auto globals used in the script before execution */
    1658         422 :     if (persistent_script->ping_auto_globals_mask) {
    1659         130 :                 zend_accel_set_auto_globals(persistent_script->ping_auto_globals_mask);
    1660             :         }
    1661             : 
    1662         422 :         return zend_accel_load_script(persistent_script, from_shared_memory);
    1663             : }
    1664             : 
    1665             : /* zend_stream_open_function() replacement for PHP 5.3 and above */
    1666         419 : static int persistent_stream_open_function(const char *filename, zend_file_handle *handle)
    1667             : {
    1668        1623 :         if (ZCG(enabled) && accel_startup_ok &&
    1669         785 :             (ZCG(counted) || ZCSG(accelerator_enabled)) &&
    1670         419 :             !ZCSG(restart_in_progress)) {
    1671             : 
    1672             :                 /* check if callback is called from include_once or it's a main request */
    1673         931 :                 if ((!EG(current_execute_data) &&
    1674         400 :                      filename == SG(request_info).path_translated) ||
    1675          53 :                     (EG(current_execute_data) &&
    1676          19 :                      EG(current_execute_data)->func &&
    1677          19 :                      ZEND_USER_CODE(EG(current_execute_data)->func->common.type) &&
    1678           7 :              EG(current_execute_data)->opline->opcode == ZEND_INCLUDE_OR_EVAL &&
    1679           7 :              (EG(current_execute_data)->opline->extended_value == ZEND_INCLUDE_ONCE ||
    1680           7 :               EG(current_execute_data)->opline->extended_value == ZEND_REQUIRE_ONCE))) {
    1681             :                         /* we are in include_once or FastCGI request */
    1682             :                         zend_persistent_script *persistent_script;
    1683             : 
    1684         373 :                         handle->filename = (char*)filename;
    1685         373 :                         handle->free_filename = 0;
    1686             : 
    1687             :                         /* check if cached script was already found by resolve_path() */
    1688        1485 :                         if ((EG(current_execute_data) == NULL &&
    1689         366 :                              ZCG(cache_opline) == NULL &&
    1690         366 :                              ZCG(cache_persistent_script) != NULL) ||
    1691         373 :                             (EG(current_execute_data) &&
    1692           7 :                              (ZCG(cache_opline) == EG(current_execute_data)->opline))) {
    1693           0 :                                 persistent_script = ZCG(cache_persistent_script);
    1694           0 :                                 handle->opened_path = estrndup(persistent_script->full_path->val, persistent_script->full_path->len);
    1695           0 :                                 handle->type = ZEND_HANDLE_FILENAME;
    1696           0 :                                 return SUCCESS;
    1697             : #if 0
    1698             :                         } else {
    1699             :                                 /* FIXME: It looks like this part is not needed any more */
    1700             :                                 int filename_len = strlen(filename);
    1701             : 
    1702             :                             if ((IS_ABSOLUTE_PATH(filename, filename_len) ||
    1703             :                                  is_stream_path(filename)) &&
    1704             :                                     (persistent_script = zend_accel_hash_find(&ZCSG(hash), (char*)filename, filename_len)) != NULL &&
    1705             :                                     !persistent_script->corrupted) {
    1706             : 
    1707             :                                         handle->opened_path = estrndup(persistent_script->full_path, persistent_script->full_path_len);
    1708             :                                         handle->type = ZEND_HANDLE_FILENAME;
    1709             :                                         memcpy(ZCG(key), persistent_script->full_path, persistent_script->full_path_len + 1);
    1710             :                                         ZCG(key_len) = persistent_script->full_path_len;
    1711             :                                         ZCG(cache_opline) = EG(current_execute_data) ? EG(current_execute_data)->opline : NULL;
    1712             :                                         ZCG(cache_persistent_script) = EG(current_execute_data) ? persistent_script : NULL;
    1713             :                                         return SUCCESS;
    1714             :                             }
    1715             : #endif
    1716             :                         }
    1717             :                 }
    1718             :         }
    1719         419 :         ZCG(cache_opline) = NULL;
    1720         419 :         ZCG(cache_persistent_script) = NULL;
    1721         419 :         return accelerator_orig_zend_stream_open_function(filename, handle);
    1722             : }
    1723             : 
    1724             : /* zend_resolve_path() replacement for PHP 5.3 and above */
    1725         842 : static char* persistent_zend_resolve_path(const char *filename, int filename_len)
    1726             : {
    1727        3258 :         if (ZCG(enabled) && accel_startup_ok &&
    1728        1574 :             (ZCG(counted) || ZCSG(accelerator_enabled)) &&
    1729         842 :             !ZCSG(restart_in_progress)) {
    1730             : 
    1731             :                 /* check if callback is called from include_once or it's a main request */
    1732        1981 :                 if ((!EG(current_execute_data) &&
    1733         766 :                      filename == SG(request_info).path_translated) ||
    1734         110 :                     (EG(current_execute_data) &&
    1735          76 :                      EG(current_execute_data)->func &&
    1736          76 :                      ZEND_USER_CODE(EG(current_execute_data)->func->common.type) &&
    1737          37 :              EG(current_execute_data)->opline->opcode == ZEND_INCLUDE_OR_EVAL &&
    1738          37 :              (EG(current_execute_data)->opline->extended_value == ZEND_INCLUDE_ONCE ||
    1739          37 :               EG(current_execute_data)->opline->extended_value == ZEND_REQUIRE_ONCE))) {
    1740             :                         /* we are in include_once or FastCGI request */
    1741             :                         zend_file_handle handle;
    1742         746 :                         char *key = NULL;
    1743             :                         int key_length;
    1744             :                         char *resolved_path;
    1745             :                         zend_accel_hash_entry *bucket;
    1746             :                         zend_persistent_script *persistent_script;
    1747             : 
    1748             :                     /* Check if requested file already cached (by full name) */
    1749        1492 :                     if ((IS_ABSOLUTE_PATH(filename, filename_len) ||
    1750           7 :                          is_stream_path(filename)) &&
    1751         739 :                             (bucket = zend_accel_hash_find_entry(&ZCSG(hash), (char*)filename, filename_len)) != NULL) {
    1752           0 :                                 persistent_script = (zend_persistent_script *)bucket->data;
    1753           0 :                                 if (persistent_script && !persistent_script->corrupted) {
    1754           0 :                                         memcpy(ZCG(key), persistent_script->full_path->val, persistent_script->full_path->len + 1);
    1755           0 :                                         ZCG(key_len) = persistent_script->full_path->len;
    1756           0 :                                         ZCG(cache_opline) = EG(current_execute_data) ? EG(current_execute_data)->opline : NULL;
    1757           0 :                                         ZCG(cache_persistent_script) = persistent_script;
    1758           0 :                                         return estrndup(persistent_script->full_path->val, persistent_script->full_path->len);
    1759             :                                 }
    1760             :                     }
    1761             : 
    1762             :                     /* Check if requested file already cached (by key) */
    1763         746 :                         handle.filename = (char*)filename;
    1764         746 :                         handle.free_filename = 0;
    1765         746 :                         handle.opened_path = NULL;
    1766         746 :                         key = accel_make_persistent_key_ex(&handle, filename_len, &key_length);
    1767        1492 :                         if (!ZCG(accel_directives).revalidate_path &&
    1768             :                             key &&
    1769         746 :                                 (persistent_script = zend_accel_hash_find(&ZCSG(hash), key, key_length)) != NULL &&
    1770           0 :                             !persistent_script->corrupted) {
    1771             : 
    1772             :                                 /* we have persistent script */
    1773           0 :                                 ZCG(cache_opline) = EG(current_execute_data) ? EG(current_execute_data)->opline : NULL;
    1774           0 :                                 ZCG(cache_persistent_script) = persistent_script;
    1775           0 :                                 return estrndup(persistent_script->full_path->val, persistent_script->full_path->len);
    1776             :                         }
    1777             : 
    1778             :                         /* find the full real path */
    1779         746 :                         resolved_path = accelerator_orig_zend_resolve_path(filename, filename_len);
    1780             : 
    1781             :                     /* Check if requested file already cached (by real path) */
    1782        1492 :                         if (resolved_path &&
    1783         746 :                             (bucket = zend_accel_hash_find_entry(&ZCSG(hash), resolved_path, strlen(resolved_path))) != NULL) {
    1784           0 :                                 persistent_script = (zend_persistent_script *)bucket->data;
    1785             : 
    1786           0 :                                 if (persistent_script && !persistent_script->corrupted) {
    1787           0 :                                         if (key && !ZCG(accel_directives).revalidate_path) {
    1788             :                                                 /* add another "key" for the same bucket */
    1789           0 :                                         SHM_UNPROTECT();
    1790           0 :                                                 zend_shared_alloc_lock();
    1791           0 :                                                 zend_accel_add_key(key, key_length, bucket);
    1792           0 :                                                 zend_shared_alloc_unlock();
    1793           0 :                                         SHM_PROTECT();
    1794             :                                         }
    1795           0 :                                         ZCG(cache_opline) = (EG(current_execute_data) && key) ? EG(current_execute_data)->opline : NULL;
    1796           0 :                                         ZCG(cache_persistent_script) = key ? persistent_script : NULL;
    1797           0 :                                         return resolved_path;
    1798             :                                 }
    1799             :                         }
    1800         746 :                         ZCG(cache_opline) = NULL;
    1801         746 :                         ZCG(cache_persistent_script) = NULL;
    1802         746 :                         return resolved_path;
    1803             :                 }
    1804             :         }
    1805          96 :         ZCG(cache_opline) = NULL;
    1806          96 :         ZCG(cache_persistent_script) = NULL;
    1807          96 :         return accelerator_orig_zend_resolve_path(filename, filename_len);
    1808             : }
    1809             : 
    1810         368 : static void zend_reset_cache_vars(void)
    1811             : {
    1812         368 :         ZSMMG(memory_exhausted) = 0;
    1813         368 :         ZCSG(hits) = 0;
    1814         368 :         ZCSG(misses) = 0;
    1815         368 :         ZCSG(blacklist_misses) = 0;
    1816         368 :         ZSMMG(wasted_shared_memory) = 0;
    1817         368 :         ZCSG(restart_pending) = 0;
    1818         368 :         ZCSG(force_restart_time) = 0;
    1819         368 : }
    1820             : 
    1821         368 : static void accel_activate(void)
    1822             : {
    1823             : 
    1824         368 :         if (!ZCG(enabled) || !accel_startup_ok) {
    1825           0 :                 return;
    1826             :         }
    1827             : 
    1828         368 :         SHM_UNPROTECT();
    1829             :         /* PHP-5.4 and above return "double", but we use 1 sec precision */
    1830         368 :         ZCG(auto_globals_mask) = 0;
    1831         368 :         ZCG(request_time) = (time_t)sapi_get_request_time();
    1832         368 :         ZCG(cache_opline) = NULL;
    1833         368 :         ZCG(cache_persistent_script) = NULL;
    1834         368 :         ZCG(include_path_check) = !ZCG(include_path_key);
    1835             : 
    1836         368 :         if (ZCG(counted)) {
    1837             : #ifdef ZTS
    1838             :                 zend_accel_error(ACCEL_LOG_WARNING, "Stuck count for thread id %d", tsrm_thread_id());
    1839             : #else
    1840           0 :                 zend_accel_error(ACCEL_LOG_WARNING, "Stuck count for pid %d", getpid());
    1841             : #endif
    1842           0 :                 accel_unlock_all();
    1843           0 :                 ZCG(counted) = 0;
    1844             :         }
    1845             : 
    1846         368 :         if (ZCSG(restart_pending)) {
    1847           0 :                 zend_shared_alloc_lock();
    1848           0 :                 if (ZCSG(restart_pending) != 0) { /* check again, to ensure that the cache wasn't already cleaned by another process */
    1849           0 :                         if (accel_is_inactive() == SUCCESS) {
    1850           0 :                                 zend_accel_error(ACCEL_LOG_DEBUG, "Restarting!");
    1851           0 :                                 ZCSG(restart_pending) = 0;
    1852           0 :                                 switch ZCSG(restart_reason) {
    1853             :                                         case ACCEL_RESTART_OOM:
    1854           0 :                                                 ZCSG(oom_restarts)++;
    1855           0 :                                                 break;
    1856             :                                         case ACCEL_RESTART_HASH:
    1857           0 :                                                 ZCSG(hash_restarts)++;
    1858           0 :                                                 break;
    1859             :                                         case ACCEL_RESTART_USER:
    1860           0 :                                                 ZCSG(manual_restarts)++;
    1861             :                                                 break;
    1862             :                                 }
    1863           0 :                                 accel_restart_enter();
    1864             : 
    1865           0 :                                 zend_reset_cache_vars();
    1866           0 :                                 zend_accel_hash_clean(&ZCSG(hash));
    1867             : 
    1868             :                                 /* include_paths keeps only the first path */
    1869           0 :                                 if (ZCSG(include_paths).num_entries > 1) {
    1870           0 :                                         ZCSG(include_paths).num_entries = 1;
    1871           0 :                                         ZCSG(include_paths).num_direct_entries = 1;
    1872           0 :                                         memset(ZCSG(include_paths).hash_table, 0, sizeof(zend_accel_hash_entry*) * ZCSG(include_paths).max_num_entries);
    1873           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];
    1874             :                                 }
    1875             : 
    1876             : #if !defined(ZTS)
    1877           0 :                                 if (ZCG(accel_directives).interned_strings_buffer) {
    1878           0 :                                         accel_interned_strings_restore_state();
    1879             :                                 }
    1880             : #endif
    1881             : 
    1882           0 :                                 zend_shared_alloc_restore_state();
    1883           0 :                                 ZCSG(accelerator_enabled) = ZCSG(cache_status_before_restart);
    1884           0 :                                 ZCSG(last_restart_time) = ZCG(request_time);
    1885           0 :                                 accel_restart_leave();
    1886             :                         }
    1887             :                 }
    1888           0 :                 zend_shared_alloc_unlock();
    1889             :         }
    1890             : 
    1891             :         /* check if ZCG(function_table) wasn't somehow polluted on the way */
    1892         368 :         if (ZCG(internal_functions_count) != zend_hash_num_elements(&ZCG(function_table))) {
    1893           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)));
    1894             :         }
    1895             : 
    1896         368 :         ZCG(cwd) = NULL;
    1897             : 
    1898         368 :         SHM_PROTECT();
    1899             : }
    1900             : 
    1901             : #if !ZEND_DEBUG
    1902             : 
    1903             : /* Fast Request Shutdown
    1904             :  * =====================
    1905             :  * Zend Memory Manager frees memory by its own. We don't have to free each
    1906             :  * allocated block separately, but we like to call all the destructors and
    1907             :  * callbacks in exactly the same order.
    1908             :  */
    1909             : static void accel_fast_zval_dtor(zval *zvalue);
    1910             : 
    1911           0 : static void accel_fast_hash_destroy(HashTable *ht)
    1912             : {
    1913             :         uint idx;
    1914             :         Bucket *p;
    1915             : 
    1916           0 :         for (idx = 0; idx < ht->nNumUsed; idx++) {
    1917           0 :                 p = ht->arData + idx;
    1918           0 :                 if (Z_TYPE(p->val) == IS_UNDEF) continue;
    1919           0 :                 accel_fast_zval_dtor(&p->val);
    1920             :         }
    1921           0 : }
    1922             : 
    1923           0 : static void accel_fast_zval_dtor(zval *zvalue)
    1924             : {
    1925           0 :         if (Z_REFCOUNTED_P(zvalue) && Z_DELREF_P(zvalue) == 0) {
    1926           0 :                 switch (Z_TYPE_P(zvalue)) {
    1927             :                         case IS_ARRAY: {
    1928           0 :                                                                         GC_REMOVE_FROM_BUFFER(Z_ARR_P(zvalue));
    1929           0 :                                         if (Z_ARR_P(zvalue) != &EG(symbol_table)) {
    1930             :                                                 /* break possible cycles */
    1931           0 :                                                 ZVAL_NULL(zvalue);
    1932           0 :                                                 accel_fast_hash_destroy(Z_ARRVAL_P(zvalue));
    1933             :                                         }
    1934             :                                 }
    1935           0 :                                 break;
    1936             :                         case IS_OBJECT:
    1937             :                                 {
    1938             : 
    1939           0 :                                         OBJ_RELEASE(Z_OBJ_P(zvalue));
    1940             :                                 }
    1941           0 :                                 break;
    1942             :                         case IS_RESOURCE:
    1943             :                                 {
    1944             : 
    1945             :                                         /* destroy resource */
    1946           0 :                                         zend_list_delete(Z_RES_P(zvalue));
    1947             :                                 }
    1948           0 :                                 break;
    1949             :                         case IS_LONG:
    1950             :                         case IS_DOUBLE:
    1951             :                         case IS_FALSE:
    1952             :                         case IS_TRUE:
    1953             :                         case IS_NULL:
    1954             :                         case IS_STRING:
    1955             :                         case IS_CONSTANT:
    1956             :                         default:
    1957           0 :                                 return;
    1958             :                                 break;
    1959             :                 }
    1960             :         }
    1961             : }
    1962             : 
    1963           0 : static int accel_clean_non_persistent_function(zval *zv)
    1964             : {
    1965           0 :         zend_function *function = Z_PTR_P(zv);
    1966             : 
    1967           0 :         if (function->type == ZEND_INTERNAL_FUNCTION) {
    1968           0 :                 return ZEND_HASH_APPLY_STOP;
    1969             :         } else {
    1970           0 :                 if (function->op_array.static_variables) {
    1971           0 :                         accel_fast_hash_destroy(function->op_array.static_variables);
    1972           0 :                         function->op_array.static_variables = NULL;
    1973             :                 }
    1974           0 :                 return ZEND_HASH_APPLY_REMOVE;
    1975             :         }
    1976             : }
    1977             : 
    1978           0 : static inline void zend_accel_fast_del_bucket(HashTable *ht, uint32_t idx, Bucket *p)
    1979             : {
    1980           0 :         uint32_t nIndex = p->h & ht->nTableMask;
    1981           0 :         uint32_t i = ht->arHash[nIndex];
    1982             : 
    1983           0 :         ht->nNumUsed--;
    1984           0 :         ht->nNumOfElements--;
    1985           0 :         if (idx != i) {
    1986           0 :                 Bucket *prev = ht->arData + i;
    1987           0 :                 while (Z_NEXT(prev->val) != idx) {
    1988           0 :                         i = Z_NEXT(prev->val);
    1989           0 :                         prev = ht->arData + i;
    1990             :                 }
    1991           0 :                 Z_NEXT(prev->val) = Z_NEXT(p->val);
    1992             :         } else {
    1993           0 :                 ht->arHash[p->h & ht->nTableMask] = Z_NEXT(p->val);
    1994             :         }
    1995           0 : }
    1996             : 
    1997           0 : static void zend_accel_fast_shutdown(void)
    1998             : {
    1999           0 :         if (EG(full_tables_cleanup)) {
    2000           0 :                 EG(symbol_table).ht.pDestructor = accel_fast_zval_dtor;
    2001             :         } else {
    2002             :                 dtor_func_t old_destructor;
    2003             : 
    2004           0 :                 if (EG(objects_store).top > 1 || zend_hash_num_elements(&EG(regular_list)) > 0) {
    2005             :                         /* We don't have to destroy all zvals if they cannot call any destructors */
    2006             : 
    2007           0 :                     old_destructor = EG(symbol_table).ht.pDestructor;
    2008           0 :                         EG(symbol_table).ht.pDestructor = accel_fast_zval_dtor;
    2009           0 :                         zend_try {
    2010           0 :                                 zend_hash_graceful_reverse_destroy(&EG(symbol_table).ht);
    2011           0 :                         } zend_end_try();
    2012           0 :                         EG(symbol_table).ht.pDestructor = old_destructor;
    2013             :                 }
    2014           0 :                 zend_hash_init(&EG(symbol_table).ht, 8, NULL, NULL, 0);
    2015             : 
    2016           0 :                 ZEND_HASH_REVERSE_FOREACH(EG(function_table), 0) {
    2017           0 :                         zend_function *func = Z_PTR(_p->val);
    2018             : 
    2019           0 :                         if (func->type == ZEND_INTERNAL_FUNCTION) {
    2020           0 :                                 break;
    2021             :                         } else {
    2022           0 :                                 if (func->op_array.static_variables) {
    2023           0 :                                         accel_fast_hash_destroy(func->op_array.static_variables);
    2024             :                                 }
    2025           0 :                                 zend_accel_fast_del_bucket(EG(function_table), _idx-1, _p);
    2026             :                         }
    2027             :                 } ZEND_HASH_FOREACH_END();
    2028             : 
    2029           0 :                 ZEND_HASH_REVERSE_FOREACH(EG(class_table), 0) {
    2030           0 :                         zend_class_entry *ce = Z_PTR(_p->val);
    2031             : 
    2032           0 :                         if (ce->type == ZEND_INTERNAL_CLASS) {
    2033           0 :                                 break;
    2034             :                         } else {
    2035           0 :                                 if (ce->ce_flags & ZEND_HAS_STATIC_IN_METHODS) {
    2036             :                                         zend_function *func;
    2037             : 
    2038           0 :                                         ZEND_HASH_FOREACH_PTR(&ce->function_table, func) {
    2039           0 :                                                 if (func->type == ZEND_USER_FUNCTION) {
    2040           0 :                                                         if (func->op_array.static_variables) {
    2041           0 :                                                                 accel_fast_hash_destroy(func->op_array.static_variables);
    2042           0 :                                                                 func->op_array.static_variables = NULL;
    2043             :                                                         }
    2044             :                                                 }
    2045             :                                         } ZEND_HASH_FOREACH_END();
    2046             :                                 }
    2047           0 :                                 if (ce->static_members_table) {
    2048             :                                         int i;
    2049             : 
    2050           0 :                                         for (i = 0; i < ce->default_static_members_count; i++) {
    2051           0 :                                                 accel_fast_zval_dtor(&ce->static_members_table[i]);
    2052           0 :                                                 ZVAL_UNDEF(&ce->static_members_table[i]);
    2053             :                                         }
    2054           0 :                                         ce->static_members_table = NULL;
    2055             :                                 }
    2056           0 :                                 zend_accel_fast_del_bucket(EG(class_table), _idx-1, _p);
    2057             :                         }
    2058             :                 } ZEND_HASH_FOREACH_END();
    2059             : 
    2060           0 :                 ZEND_HASH_REVERSE_FOREACH(EG(zend_constants), 0) {
    2061           0 :                         zend_constant *c = Z_PTR(_p->val);
    2062             : 
    2063           0 :                         if (c->flags & CONST_PERSISTENT) {
    2064           0 :                                 break;
    2065             :                         } else {
    2066           0 :                                 zend_accel_fast_del_bucket(EG(zend_constants), _idx-1, _p);
    2067             :                         }
    2068             :                 } ZEND_HASH_FOREACH_END();
    2069             :         }
    2070           0 :         CG(unclean_shutdown) = 1;
    2071           0 : }
    2072             : #endif
    2073             : 
    2074         368 : static void accel_deactivate(void)
    2075             : {
    2076             :         /* ensure that we restore function_table and class_table
    2077             :          * In general, they're restored by persistent_compile_file(), but in case
    2078             :          * the script is aborted abnormally, they may become messed up.
    2079             :          */
    2080             : 
    2081         368 :         if (!ZCG(enabled) || !accel_startup_ok) {
    2082           0 :                 return;
    2083             :         }
    2084             : 
    2085         368 :         zend_shared_alloc_safe_unlock(); /* be sure we didn't leave cache locked */
    2086         368 :         accel_unlock_all();
    2087         368 :         ZCG(counted) = 0;
    2088             : 
    2089             : #if !ZEND_DEBUG
    2090         368 :         if (ZCG(accel_directives).fast_shutdown) {
    2091           0 :                 zend_accel_fast_shutdown();
    2092             :         }
    2093             : #endif
    2094             : 
    2095         368 :         if (ZCG(cwd)) {
    2096          25 :                 efree(ZCG(cwd));
    2097          25 :                 ZCG(cwd) = NULL;
    2098             :         }
    2099             : 
    2100             : }
    2101             : 
    2102       20298 : static int accelerator_remove_cb(zend_extension *element1, zend_extension *element2)
    2103             : {
    2104             :         (void)element2; /* keep the compiler happy */
    2105             : 
    2106       20298 :         if (!strcmp(element1->name, ACCELERATOR_PRODUCT_NAME )) {
    2107       20298 :                 element1->startup = NULL;
    2108             : #if 0
    2109             :                 /* We have to call shutdown callback it to free TS resources */
    2110             :                 element1->shutdown = NULL;
    2111             : #endif
    2112       20298 :                 element1->activate = NULL;
    2113       20298 :                 element1->deactivate = NULL;
    2114       20298 :                 element1->op_array_handler = NULL;
    2115             : 
    2116             : #ifdef __DEBUG_MESSAGES__
    2117             :         fprintf(stderr, ACCELERATOR_PRODUCT_NAME " is disabled: %s\n", (zps_failure_reason ? zps_failure_reason : "unknown error"));
    2118             :         fflush(stderr);
    2119             : #endif
    2120             :         }
    2121             : 
    2122       20298 :         return 0;
    2123             : }
    2124             : 
    2125       20298 : static void zps_startup_failure(char *reason, char *api_reason, int (*cb)(zend_extension *, zend_extension *))
    2126             : {
    2127       20298 :         accel_startup_ok = 0;
    2128       20298 :         zps_failure_reason = reason;
    2129       20298 :         zps_api_failure_reason = api_reason?api_reason:reason;
    2130       20298 :         zend_llist_del_element(&zend_extensions, NULL, (int (*)(void *, void *))cb);
    2131       20298 : }
    2132             : 
    2133       20666 : static inline int accel_find_sapi(void)
    2134             : {
    2135             :         static const char *supported_sapis[] = {
    2136             :                 "apache",
    2137             :                 "fastcgi",
    2138             :                 "cli-server",
    2139             :                 "cgi-fcgi",
    2140             :                 "fpm-fcgi",
    2141             :                 "isapi",
    2142             :                 "apache2filter",
    2143             :                 "apache2handler",
    2144             :                 "litespeed",
    2145             :                 NULL
    2146             :         };
    2147             :         const char **sapi_name;
    2148             : 
    2149       20666 :         if (sapi_module.name) {
    2150      204464 :                 for (sapi_name = supported_sapis; *sapi_name; sapi_name++) {
    2151      184164 :                         if (strcmp(sapi_module.name, *sapi_name) == 0) {
    2152         366 :                                 return SUCCESS;
    2153             :                         }
    2154             :                 }
    2155       20302 :                 if (ZCG(accel_directives).enable_cli &&
    2156           2 :                     strcmp(sapi_module.name, "cli") == 0) {
    2157           2 :                         return SUCCESS;
    2158             :                 }
    2159             :         }
    2160             : 
    2161       20298 :         return FAILURE;
    2162             : }
    2163             : 
    2164         368 : static int zend_accel_init_shm(void)
    2165             : {
    2166         368 :         zend_shared_alloc_lock();
    2167             : 
    2168         368 :         accel_shared_globals = zend_shared_alloc(sizeof(zend_accel_shared_globals));
    2169         368 :         if (!accel_shared_globals) {
    2170           0 :                 zend_accel_error(ACCEL_LOG_FATAL, "Insufficient shared memory!");
    2171           0 :                 return FAILURE;
    2172             :         }
    2173         368 :         ZSMMG(app_shared_globals) = accel_shared_globals;
    2174             : 
    2175         368 :         zend_accel_hash_init(&ZCSG(hash), ZCG(accel_directives).max_accelerated_files);
    2176         368 :         zend_accel_hash_init(&ZCSG(include_paths), 32);
    2177             : 
    2178         368 :         ZCSG(interned_strings_start) = ZCSG(interned_strings_end) = NULL;
    2179             : # ifndef ZTS
    2180         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);
    2181         368 :         if (ZCG(accel_directives).interned_strings_buffer) {
    2182         368 :                 ZCSG(interned_strings).nTableMask = ZCSG(interned_strings).nTableSize - 1;
    2183         368 :                 ZCSG(interned_strings).arData = zend_shared_alloc(ZCSG(interned_strings).nTableSize * sizeof(Bucket));
    2184         368 :                 ZCSG(interned_strings).arHash = (uint32_t*)zend_shared_alloc(ZCSG(interned_strings).nTableSize * sizeof(uint32_t));
    2185         368 :                 ZCSG(interned_strings_start) = zend_shared_alloc((ZCG(accel_directives).interned_strings_buffer * 1024 * 1024));
    2186         368 :                 if (!ZCSG(interned_strings).arData || !ZCSG(interned_strings_start)) {
    2187           0 :                         zend_accel_error(ACCEL_LOG_FATAL, ACCELERATOR_PRODUCT_NAME " cannot allocate buffer for interned strings");
    2188           0 :                         return FAILURE;
    2189             :                 }
    2190         368 :                 memset(ZCSG(interned_strings).arHash, INVALID_IDX, ZCSG(interned_strings).nTableSize * sizeof(uint32_t));
    2191         368 :                 ZCSG(interned_strings_end)   = ZCSG(interned_strings_start) + (ZCG(accel_directives).interned_strings_buffer * 1024 * 1024);
    2192         368 :                 ZCSG(interned_strings_top)   = ZCSG(interned_strings_start);
    2193             : 
    2194             : //              orig_interned_strings_start = CG(interned_strings_start);
    2195             : //              orig_interned_strings_end = CG(interned_strings_end);
    2196             : //              CG(interned_strings_start) = ZCSG(interned_strings_start);
    2197             : //              CG(interned_strings_end) = ZCSG(interned_strings_end);
    2198             :         }
    2199             : # endif
    2200             : 
    2201         368 :         orig_new_interned_string = zend_new_interned_string;
    2202         368 :         orig_interned_strings_snapshot = zend_interned_strings_snapshot;
    2203         368 :         orig_interned_strings_restore = zend_interned_strings_restore;
    2204         368 :         zend_new_interned_string = accel_new_interned_string_for_php;
    2205         368 :         zend_interned_strings_snapshot = accel_interned_strings_snapshot_for_php;
    2206         368 :         zend_interned_strings_restore = accel_interned_strings_restore_for_php;
    2207             : 
    2208             : # ifndef ZTS
    2209         368 :         if (ZCG(accel_directives).interned_strings_buffer) {
    2210         368 :                 accel_use_shm_interned_strings();
    2211         368 :                 accel_interned_strings_save_state();
    2212             :         }
    2213             : # endif
    2214             : 
    2215         368 :         zend_reset_cache_vars();
    2216             : 
    2217         368 :         ZCSG(oom_restarts) = 0;
    2218         368 :         ZCSG(hash_restarts) = 0;
    2219         368 :         ZCSG(manual_restarts) = 0;
    2220             : 
    2221         368 :         ZCSG(accelerator_enabled) = 1;
    2222         368 :         ZCSG(start_time) = zend_accel_get_time();
    2223         368 :         ZCSG(last_restart_time) = 0;
    2224         368 :         ZCSG(restart_in_progress) = 0;
    2225             : 
    2226         368 :         zend_shared_alloc_unlock();
    2227             : 
    2228         368 :         return SUCCESS;
    2229             : }
    2230             : 
    2231       20666 : static void accel_globals_ctor(zend_accel_globals *accel_globals)
    2232             : {
    2233             : #if defined(COMPILE_DL_OPCACHE) && defined(ZTS)
    2234             :         ZEND_TSRMLS_CACHE_UPDATE;
    2235             : #endif
    2236       20666 :         memset(accel_globals, 0, sizeof(zend_accel_globals));
    2237       20666 :         zend_hash_init(&accel_globals->function_table, zend_hash_num_elements(CG(function_table)), NULL, ZEND_FUNCTION_DTOR, 1);
    2238       20666 :         zend_accel_copy_internal_functions();
    2239       20666 : }
    2240             : 
    2241    45978864 : static void accel_globals_internal_func_dtor(zval *zv)
    2242             : {
    2243    45978864 :         free(Z_PTR_P(zv));
    2244    45978864 : }
    2245             : 
    2246       20664 : static void accel_globals_dtor(zend_accel_globals *accel_globals)
    2247             : {
    2248       20664 :         accel_globals->function_table.pDestructor = accel_globals_internal_func_dtor;
    2249       20664 :         zend_hash_destroy(&accel_globals->function_table);
    2250       20664 : }
    2251             : 
    2252       20666 : static int accel_startup(zend_extension *extension)
    2253             : {
    2254             :         zend_function *func;
    2255             :         zend_ini_entry *ini_entry;
    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       20666 :         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       20666 :         if (start_accel_module() == 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       20666 :         if (accel_find_sapi() == FAILURE) {
    2275       20298 :                 accel_startup_ok = 0;
    2276       60894 :                 if (!ZCG(accel_directives).enable_cli &&
    2277       20298 :                     strcmp(sapi_module.name, "cli") == 0) {
    2278       20298 :                         zps_startup_failure("Opcode Caching is disabled for CLI", NULL, accelerator_remove_cb);
    2279             :                 } else {
    2280           0 :                         zps_startup_failure("Opcode Caching is only supported in Apache, ISAPI, FPM, FastCGI and LiteSpeed SAPIs", NULL, accelerator_remove_cb);
    2281             :                 }
    2282       20298 :                 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() == 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();
    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();
    2314             : #endif
    2315           0 :                         zend_shared_alloc_unlock();
    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();
    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();
    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);
    2371             :                                 }
    2372         368 :                                 zend_shared_alloc_unlock();
    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();
    2383         368 :         zend_shared_alloc_save_state();
    2384         368 :         zend_shared_alloc_unlock();
    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();
    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();
    2405             : #endif
    2406             : 
    2407         368 :         return SUCCESS;
    2408             : }
    2409             : 
    2410       20664 : static void accel_free_ts_resources()
    2411             : {
    2412             : #ifndef ZTS
    2413       20664 :         accel_globals_dtor(&accel_globals);
    2414             : #else
    2415             :         ts_free_id(accel_globals_id);
    2416             : #endif
    2417       20664 : }
    2418             : 
    2419       20664 : void accel_shutdown(void)
    2420             : {
    2421             :         zend_ini_entry *ini_entry;
    2422             : 
    2423       20664 :         zend_accel_blacklist_shutdown(&accel_blacklist);
    2424             : 
    2425       20664 :         if (!ZCG(enabled) || !accel_startup_ok) {
    2426       20296 :                 accel_free_ts_resources();
    2427       20296 :                 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)
    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()
    2477             : #else
    2478             : #define accel_deactivate_now() accel_deactivate_sub()
    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(void)
    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(); /* 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(void)
    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) 1999-2015",                            /* 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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