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zend_execute_API.c File Reference
#include <stdio.h>
#include <signal.h>
#include "zend.h"
#include "zend_compile.h"
#include "zend_execute.h"
#include "zend_API.h"
#include "zend_ptr_stack.h"
#include "zend_constants.h"
#include "zend_extensions.h"
#include "zend_exceptions.h"
#include "zend_closures.h"
#include "zend_vm.h"
#include "zend_float.h"
#include "../TSRM/tsrm_strtok_r.h"

Go to the source code of this file.

Classes

struct  _zend_abstract_info

Defines

#define IS_VISITED_CONSTANT   IS_CONSTANT_INDEX
#define IS_CONSTANT_VISITED(p)   (Z_TYPE_P(p) & IS_VISITED_CONSTANT)
#define Z_REAL_TYPE_P(p)   (Z_TYPE_P(p) & ~IS_VISITED_CONSTANT)
#define MARK_CONSTANT_VISITED(p)   Z_TYPE_P(p) |= IS_VISITED_CONSTANT
#define SIGPROF   27
#define MAX_ABSTRACT_INFO_CNT   3
#define MAX_ABSTRACT_INFO_FMT   "%s%s%s%s"
#define DISPLAY_ABSTRACT_FN(idx)

Typedefs

typedef struct _zend_abstract_info zend_abstract_info

Functions

static void zend_extension_activator (zend_extension *extension TSRMLS_DC)
static void zend_extension_deactivator (zend_extension *extension TSRMLS_DC)
static int clean_non_persistent_function (zend_function *function TSRMLS_DC)
static int clean_non_persistent_function_full (zend_function *function TSRMLS_DC)
static int clean_non_persistent_class (zend_class_entry **ce TSRMLS_DC)
static int clean_non_persistent_class_full (zend_class_entry **ce TSRMLS_DC)
void init_executor (TSRMLS_D)
static int zval_call_destructor (zval **zv TSRMLS_DC)
void shutdown_destructors (TSRMLS_D)
void shutdown_executor (TSRMLS_D)
ZEND_API char * get_active_class_name (char **space TSRMLS_DC)
ZEND_API char * get_active_function_name (TSRMLS_D)
ZEND_API char * zend_get_executed_filename (TSRMLS_D)
ZEND_API uint zend_get_executed_lineno (TSRMLS_D)
ZEND_API zend_bool zend_is_executing (TSRMLS_D)
ZEND_API void _zval_ptr_dtor (zval **zval_ptr ZEND_FILE_LINE_DC)
ZEND_API void _zval_internal_ptr_dtor (zval **zval_ptr ZEND_FILE_LINE_DC)
ZEND_API int zend_is_true (zval *op)
static void zval_deep_copy (zval **p)
ZEND_API int zval_update_constant_ex (zval **pp, void *arg, zend_class_entry *scope TSRMLS_DC)
ZEND_API int zval_update_constant_inline_change (zval **pp, void *scope TSRMLS_DC)
ZEND_API int zval_update_constant_no_inline_change (zval **pp, void *scope TSRMLS_DC)
ZEND_API int zval_update_constant (zval **pp, void *arg TSRMLS_DC)
int call_user_function (HashTable *function_table, zval **object_pp, zval *function_name, zval *retval_ptr, zend_uint param_count, zval *params[] TSRMLS_DC)
int call_user_function_ex (HashTable *function_table, zval **object_pp, zval *function_name, zval **retval_ptr_ptr, zend_uint param_count, zval **params[], int no_separation, HashTable *symbol_table TSRMLS_DC)
int zend_call_function (zend_fcall_info *fci, zend_fcall_info_cache *fci_cache TSRMLS_DC)
ZEND_API int zend_lookup_class_ex (const char *name, int name_length, int use_autoload, zend_class_entry ***ce TSRMLS_DC)
ZEND_API int zend_lookup_class (const char *name, int name_length, zend_class_entry ***ce TSRMLS_DC)
ZEND_API int zend_eval_stringl (char *str, int str_len, zval *retval_ptr, char *string_name TSRMLS_DC)
ZEND_API int zend_eval_string (char *str, zval *retval_ptr, char *string_name TSRMLS_DC)
ZEND_API int zend_eval_stringl_ex (char *str, int str_len, zval *retval_ptr, char *string_name, int handle_exceptions TSRMLS_DC)
ZEND_API int zend_eval_string_ex (char *str, zval *retval_ptr, char *string_name, int handle_exceptions TSRMLS_DC)
void execute_new_code (TSRMLS_D)
ZEND_API void zend_timeout (int dummy)
void zend_set_timeout (long seconds, int reset_signals)
void zend_unset_timeout (TSRMLS_D)
zend_class_entry * zend_fetch_class (const char *class_name, uint class_name_len, int fetch_type TSRMLS_DC)
static int zend_verify_abstract_class_function (zend_function *fn, zend_abstract_info *ai TSRMLS_DC)
void zend_verify_abstract_class (zend_class_entry *ce TSRMLS_DC)
ZEND_API void zend_reset_all_cv (HashTable *symbol_table TSRMLS_DC)
ZEND_API int zend_delete_global_variable (char *name, int name_len TSRMLS_DC)
ZEND_API void zend_rebuild_symbol_table (TSRMLS_D)

Variables

ZEND_API void(* zend_execute )(zend_op_array *op_array TSRMLS_DC)
ZEND_API void(* zend_execute_internal )(zend_execute_data *execute_data_ptr, int return_value_used TSRMLS_DC)
ZEND_API const zend_fcall_info empty_fcall_info = { 0, NULL, NULL, NULL, NULL, 0, NULL, NULL, 0 }
ZEND_API const
zend_fcall_info_cache 
empty_fcall_info_cache = { 0, NULL, NULL, NULL, NULL }

Class Documentation

struct _zend_abstract_info

Definition at line 1592 of file zend_execute_API.c.

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Class Members
zend_function * afn
int cnt
int ctor

Define Documentation

#define DISPLAY_ABSTRACT_FN (   idx)
Value:
ai.afn[idx] ? ZEND_FN_SCOPE_NAME(ai.afn[idx]) : "", \
       ai.afn[idx] ? "::" : "", \
       ai.afn[idx] ? ai.afn[idx]->common.function_name : "", \
       ai.afn[idx] && ai.afn[idx + 1] ? ", " : (ai.afn[idx] && ai.cnt > MAX_ABSTRACT_INFO_CNT ? ", ..." : "")

Definition at line 1586 of file zend_execute_API.c.

#define IS_CONSTANT_VISITED (   p)    (Z_TYPE_P(p) & IS_VISITED_CONSTANT)

Definition at line 486 of file zend_execute_API.c.

Definition at line 485 of file zend_execute_API.c.

#define MARK_CONSTANT_VISITED (   p)    Z_TYPE_P(p) |= IS_VISITED_CONSTANT

Definition at line 488 of file zend_execute_API.c.

#define MAX_ABSTRACT_INFO_CNT   3

Definition at line 1584 of file zend_execute_API.c.

#define MAX_ABSTRACT_INFO_FMT   "%s%s%s%s"

Definition at line 1585 of file zend_execute_API.c.

#define SIGPROF   27

Definition at line 1451 of file zend_execute_API.c.

#define Z_REAL_TYPE_P (   p)    (Z_TYPE_P(p) & ~IS_VISITED_CONSTANT)

Definition at line 487 of file zend_execute_API.c.


Typedef Documentation


Function Documentation

ZEND_API void _zval_internal_ptr_dtor ( zval **zval_ptr  ZEND_FILE_LINE_DC)

Definition at line 462 of file zend_execute_API.c.

{
#if DEBUG_ZEND>=2
       printf("Reducing refcount for %x (%x): %d->%d\n", *zval_ptr, zval_ptr, Z_REFCOUNT_PP(zval_ptr), Z_REFCOUNT_PP(zval_ptr) - 1);
#endif
       Z_DELREF_PP(zval_ptr);
       if (Z_REFCOUNT_PP(zval_ptr) == 0) {
              zval_internal_dtor(*zval_ptr);
              free(*zval_ptr);
       } else if (Z_REFCOUNT_PP(zval_ptr) == 1) {
              Z_UNSET_ISREF_PP(zval_ptr);
       }
}
ZEND_API void _zval_ptr_dtor ( zval **zval_ptr  ZEND_FILE_LINE_DC)

Definition at line 434 of file zend_execute_API.c.

{
       zval *zv = *zval_ptr;

#if DEBUG_ZEND>=2
       printf("Reducing refcount for %x (%x): %d->%d\n", *zval_ptr, zval_ptr, Z_REFCOUNT_PP(zval_ptr), Z_REFCOUNT_PP(zval_ptr) - 1);
#endif
       Z_DELREF_P(zv);
       if (Z_REFCOUNT_P(zv) == 0) {
              TSRMLS_FETCH();

              if (zv != &EG(uninitialized_zval)) {
                     GC_REMOVE_ZVAL_FROM_BUFFER(zv);
                     zval_dtor(zv);
                     efree_rel(zv);
              }
       } else {
              TSRMLS_FETCH();

              if (Z_REFCOUNT_P(zv) == 1) {
                     Z_UNSET_ISREF_P(zv);
              }

              GC_ZVAL_CHECK_POSSIBLE_ROOT(zv);
       }
}
int call_user_function ( HashTable function_table,
zval **  object_pp,
zval *  function_name,
zval *  retval_ptr,
zend_uint  param_count,
zval *params[]  TSRMLS_DC 
)

Definition at line 716 of file zend_execute_API.c.

{
       zval ***params_array;
       zend_uint i;
       int ex_retval;
       zval *local_retval_ptr = NULL;

       if (param_count) {
              params_array = (zval ***) emalloc(sizeof(zval **)*param_count);
              for (i=0; i<param_count; i++) {
                     params_array[i] = &params[i];
              }
       } else {
              params_array = NULL;
       }
       ex_retval = call_user_function_ex(function_table, object_pp, function_name, &local_retval_ptr, param_count, params_array, 1, NULL TSRMLS_CC);
       if (local_retval_ptr) {
              COPY_PZVAL_TO_ZVAL(*retval_ptr, local_retval_ptr);
       } else {
              INIT_ZVAL(*retval_ptr);
       }
       if (params_array) {
              efree(params_array);
       }
       return ex_retval;
}

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int call_user_function_ex ( HashTable function_table,
zval **  object_pp,
zval *  function_name,
zval **  retval_ptr_ptr,
zend_uint  param_count,
zval **  params[],
int  no_separation,
HashTable *symbol_table  TSRMLS_DC 
)

Definition at line 744 of file zend_execute_API.c.

{
       zend_fcall_info fci;

       fci.size = sizeof(fci);
       fci.function_table = function_table;
       fci.object_ptr = object_pp ? *object_pp : NULL;
       fci.function_name = function_name;
       fci.retval_ptr_ptr = retval_ptr_ptr;
       fci.param_count = param_count;
       fci.params = params;
       fci.no_separation = (zend_bool) no_separation;
       fci.symbol_table = symbol_table;

       return zend_call_function(&fci, NULL TSRMLS_CC);
}

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static int clean_non_persistent_class ( zend_class_entry **ce  TSRMLS_DC) [static]

Definition at line 117 of file zend_execute_API.c.

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static int clean_non_persistent_class_full ( zend_class_entry **ce  TSRMLS_DC) [static]

Definition at line 123 of file zend_execute_API.c.

{
       return ((*ce)->type != ZEND_INTERNAL_CLASS);
}

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static int clean_non_persistent_function ( zend_function *function  TSRMLS_DC) [static]

Definition at line 105 of file zend_execute_API.c.

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static int clean_non_persistent_function_full ( zend_function *function  TSRMLS_DC) [static]

Definition at line 111 of file zend_execute_API.c.

{
       return (function->type != ZEND_INTERNAL_FUNCTION);
}

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Definition at line 1255 of file zend_execute_API.c.

{
       zend_op *opline, *end;
       zend_op *ret_opline;
       int orig_interactive;

       if (!(CG(active_op_array)->fn_flags & ZEND_ACC_INTERACTIVE)
              || CG(active_op_array)->backpatch_count>0
              || CG(active_op_array)->function_name
              || CG(active_op_array)->type!=ZEND_USER_FUNCTION) {
              return;
       }

       ret_opline = get_next_op(CG(active_op_array) TSRMLS_CC);
       ret_opline->opcode = ZEND_RETURN;
       ret_opline->op1.op_type = IS_CONST;
       INIT_ZVAL(ret_opline->op1.u.constant);
       SET_UNUSED(ret_opline->op2);

       if (!CG(active_op_array)->start_op) {
              CG(active_op_array)->start_op = CG(active_op_array)->opcodes;
       }

       opline=CG(active_op_array)->start_op;
       end=CG(active_op_array)->opcodes+CG(active_op_array)->last;

       while (opline<end) {
              if (opline->op1.op_type == IS_CONST) {
                     Z_SET_ISREF(opline->op1.u.constant);
                     Z_SET_REFCOUNT(opline->op1.u.constant, 2); /* Make sure is_ref won't be reset */
              }
              if (opline->op2.op_type == IS_CONST) {
                     Z_SET_ISREF(opline->op2.u.constant);
                     Z_SET_REFCOUNT(opline->op2.u.constant, 2);
              }
              switch (opline->opcode) {
                     case ZEND_GOTO:
                            if (Z_TYPE(opline->op2.u.constant) != IS_LONG) {
                                   zend_resolve_goto_label(CG(active_op_array), opline, 1 TSRMLS_CC);
                            }
                            /* break omitted intentionally */
                     case ZEND_JMP:
                            opline->op1.u.jmp_addr = &CG(active_op_array)->opcodes[opline->op1.u.opline_num];
                            break;
                     case ZEND_JMPZ:
                     case ZEND_JMPNZ:
                     case ZEND_JMPZ_EX:
                     case ZEND_JMPNZ_EX:
                     case ZEND_JMP_SET:
                            opline->op2.u.jmp_addr = &CG(active_op_array)->opcodes[opline->op2.u.opline_num];
                            break;
              }
              ZEND_VM_SET_OPCODE_HANDLER(opline);
              opline++;
       }
       
       zend_release_labels(TSRMLS_C);
       
       EG(return_value_ptr_ptr) = NULL;
       EG(active_op_array) = CG(active_op_array);
       orig_interactive = CG(interactive);
       CG(interactive) = 0;
       zend_execute(CG(active_op_array) TSRMLS_CC);
       CG(interactive) = orig_interactive;

       if (EG(exception)) {
              zend_exception_error(EG(exception), E_ERROR TSRMLS_CC);
       }

       CG(active_op_array)->last -= 1;    /* get rid of that ZEND_RETURN */
       CG(active_op_array)->start_op = CG(active_op_array)->opcodes+CG(active_op_array)->last;
}

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ZEND_API char* get_active_class_name ( char **space  TSRMLS_DC)

Definition at line 351 of file zend_execute_API.c.

{
       if (!zend_is_executing(TSRMLS_C)) {
              if (space) {
                     *space = "";
              }
              return "";
       }
       switch (EG(current_execute_data)->function_state.function->type) {
              case ZEND_USER_FUNCTION:
              case ZEND_INTERNAL_FUNCTION:
              {
                     zend_class_entry *ce = EG(current_execute_data)->function_state.function->common.scope;

                     if (space) {
                            *space = ce ? "::" : "";
                     }
                     return ce ? ce->name : "";
              }
              default:
                     if (space) {
                            *space = "";
                     }
                     return "";
       }
}

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Definition at line 379 of file zend_execute_API.c.

{
       if (!zend_is_executing(TSRMLS_C)) {
              return NULL;
       }
       switch (EG(current_execute_data)->function_state.function->type) {
              case ZEND_USER_FUNCTION: {
                            char *function_name = ((zend_op_array *) EG(current_execute_data)->function_state.function)->function_name;

                            if (function_name) {
                                   return function_name;
                            } else {
                                   return "main";
                            }
                     }
                     break;
              case ZEND_INTERNAL_FUNCTION:
                     return ((zend_internal_function *) EG(current_execute_data)->function_state.function)->function_name;
                     break;
              default:
                     return NULL;
       }
}

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void init_executor ( TSRMLS_D  )

Definition at line 129 of file zend_execute_API.c.

{
       zend_init_fpu(TSRMLS_C);

       INIT_ZVAL(EG(uninitialized_zval));
       /* trick to make uninitialized_zval never be modified, passed by ref, etc. */
       Z_ADDREF(EG(uninitialized_zval));
       INIT_ZVAL(EG(error_zval));
       EG(uninitialized_zval_ptr)=&EG(uninitialized_zval);
       EG(error_zval_ptr)=&EG(error_zval);
       zend_ptr_stack_init(&EG(arg_types_stack));
/* destroys stack frame, therefore makes core dumps worthless */
#if 0&&ZEND_DEBUG
       original_sigsegv_handler = signal(SIGSEGV, zend_handle_sigsegv);
#endif
       EG(return_value_ptr_ptr) = NULL;

       EG(symtable_cache_ptr) = EG(symtable_cache) - 1;
       EG(symtable_cache_limit) = EG(symtable_cache) + SYMTABLE_CACHE_SIZE - 1;
       EG(no_extensions) = 0;

       EG(function_table) = CG(function_table);
       EG(class_table) = CG(class_table);

       EG(in_execution) = 0;
       EG(in_autoload) = NULL;
       EG(autoload_func) = NULL;
       EG(error_handling) = EH_NORMAL;

       zend_vm_stack_init(TSRMLS_C);
       zend_vm_stack_push((void *) NULL TSRMLS_CC);

       zend_hash_init(&EG(symbol_table), 50, NULL, ZVAL_PTR_DTOR, 0);
       {
              zval *globals;

              ALLOC_ZVAL(globals);
              Z_SET_REFCOUNT_P(globals, 1);
              Z_SET_ISREF_P(globals);
              Z_TYPE_P(globals) = IS_ARRAY;
              Z_ARRVAL_P(globals) = &EG(symbol_table);
              zend_hash_update(&EG(symbol_table), "GLOBALS", sizeof("GLOBALS"), &globals, sizeof(zval *), NULL);
       }
       EG(active_symbol_table) = &EG(symbol_table);

       zend_llist_apply(&zend_extensions, (llist_apply_func_t) zend_extension_activator TSRMLS_CC);
       EG(opline_ptr) = NULL;

       zend_hash_init(&EG(included_files), 5, NULL, NULL, 0);

       EG(ticks_count) = 0;

       EG(user_error_handler) = NULL;

       EG(current_execute_data) = NULL;

       zend_stack_init(&EG(user_error_handlers_error_reporting));
       zend_ptr_stack_init(&EG(user_error_handlers));
       zend_ptr_stack_init(&EG(user_exception_handlers));

       zend_objects_store_init(&EG(objects_store), 1024);

       EG(full_tables_cleanup) = 0;
#ifdef ZEND_WIN32
       EG(timed_out) = 0;
#endif

       EG(exception) = NULL;
       EG(prev_exception) = NULL;

       EG(scope) = NULL;
       EG(called_scope) = NULL;

       EG(This) = NULL;

       EG(active_op_array) = NULL;

       EG(active) = 1;
}

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Definition at line 220 of file zend_execute_API.c.

{
       zend_try {
              int symbols;
              do {
                     symbols = zend_hash_num_elements(&EG(symbol_table));
                     zend_hash_reverse_apply(&EG(symbol_table), (apply_func_t) zval_call_destructor TSRMLS_CC);
              } while (symbols != zend_hash_num_elements(&EG(symbol_table)));
              zend_objects_store_call_destructors(&EG(objects_store) TSRMLS_CC);
       } zend_catch {
              /* if we couldn't destruct cleanly, mark all objects as destructed anyway */
              zend_objects_store_mark_destructed(&EG(objects_store) TSRMLS_CC);
       } zend_end_try();
}

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Definition at line 236 of file zend_execute_API.c.

{
       zend_try {

/* Removed because this can not be safely done, e.g. in this situation:
   Object 1 creates object 2
   Object 3 holds reference to object 2.
   Now when 1 and 2 are destroyed, 3 can still access 2 in its destructor, with
   very problematic results */
/*            zend_objects_store_call_destructors(&EG(objects_store) TSRMLS_CC); */

/* Moved after symbol table cleaners, because  some of the cleaners can call
   destructors, which would use EG(symtable_cache_ptr) and thus leave leaks */
/*            while (EG(symtable_cache_ptr)>=EG(symtable_cache)) {
                     zend_hash_destroy(*EG(symtable_cache_ptr));
                     efree(*EG(symtable_cache_ptr));
                     EG(symtable_cache_ptr)--;
              }
*/
              zend_llist_apply(&zend_extensions, (llist_apply_func_t) zend_extension_deactivator TSRMLS_CC);
              zend_hash_graceful_reverse_destroy(&EG(symbol_table));
       } zend_end_try();

       zend_try {
              zval *zeh;
              /* remove error handlers before destroying classes and functions,
               * so that if handler used some class, crash would not happen */
              if (EG(user_error_handler)) {
                     zeh = EG(user_error_handler);
                     EG(user_error_handler) = NULL;
                     zval_dtor(zeh);
                     FREE_ZVAL(zeh);
              }

              if (EG(user_exception_handler)) {
                     zeh = EG(user_exception_handler);
                     EG(user_exception_handler) = NULL;
                     zval_dtor(zeh);
                     FREE_ZVAL(zeh);
              }

              zend_stack_destroy(&EG(user_error_handlers_error_reporting));
              zend_stack_init(&EG(user_error_handlers_error_reporting));
              zend_ptr_stack_clean(&EG(user_error_handlers), ZVAL_DESTRUCTOR, 1);
              zend_ptr_stack_clean(&EG(user_exception_handlers), ZVAL_DESTRUCTOR, 1);
       } zend_end_try();

       zend_try {
              /* Cleanup static data for functions and arrays.
               * We need a separate cleanup stage because of the following problem:
               * Suppose we destroy class X, which destroys the class's function table,
               * and in the function table we have function foo() that has static $bar.
               * Now if an object of class X is assigned to $bar, its destructor will be
               * called and will fail since X's function table is in mid-destruction.
               * So we want first of all to clean up all data and then move to tables destruction.
               * Note that only run-time accessed data need to be cleaned up, pre-defined data can
               * not contain objects and thus are not probelmatic */
              if (EG(full_tables_cleanup)) {
                     zend_hash_apply(EG(function_table), (apply_func_t) zend_cleanup_function_data_full TSRMLS_CC);
              } else {
                     zend_hash_reverse_apply(EG(function_table), (apply_func_t) zend_cleanup_function_data TSRMLS_CC);
              }
              zend_hash_apply(EG(class_table), (apply_func_t) zend_cleanup_class_data TSRMLS_CC);
       } zend_end_try();

       zend_try {
              zend_vm_stack_destroy(TSRMLS_C);

              zend_objects_store_free_object_storage(&EG(objects_store) TSRMLS_CC);

              /* Destroy all op arrays */
              if (EG(full_tables_cleanup)) {
                     zend_hash_apply(EG(function_table), (apply_func_t) clean_non_persistent_function_full TSRMLS_CC);
                     zend_hash_apply(EG(class_table), (apply_func_t) clean_non_persistent_class_full TSRMLS_CC);
              } else {
                     zend_hash_reverse_apply(EG(function_table), (apply_func_t) clean_non_persistent_function TSRMLS_CC);
                     zend_hash_reverse_apply(EG(class_table), (apply_func_t) clean_non_persistent_class TSRMLS_CC);
              }

              while (EG(symtable_cache_ptr)>=EG(symtable_cache)) {
                     zend_hash_destroy(*EG(symtable_cache_ptr));
                     FREE_HASHTABLE(*EG(symtable_cache_ptr));
                     EG(symtable_cache_ptr)--;
              }
       } zend_end_try();

       zend_try {
              clean_non_persistent_constants(TSRMLS_C);
       } zend_end_try();

       zend_try {
#if 0&&ZEND_DEBUG
       signal(SIGSEGV, original_sigsegv_handler);
#endif

              zend_hash_destroy(&EG(included_files));

              zend_ptr_stack_destroy(&EG(arg_types_stack));
              zend_stack_destroy(&EG(user_error_handlers_error_reporting));
              zend_ptr_stack_destroy(&EG(user_error_handlers));
              zend_ptr_stack_destroy(&EG(user_exception_handlers));
              zend_objects_store_destroy(&EG(objects_store));
              if (EG(in_autoload)) {
                     zend_hash_destroy(EG(in_autoload));
                     FREE_HASHTABLE(EG(in_autoload));
              }
       } zend_end_try();

       zend_shutdown_fpu(TSRMLS_C);

       EG(active) = 0;
}

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int zend_call_function ( zend_fcall_info fci,
zend_fcall_info_cache *fci_cache  TSRMLS_DC 
)

Definition at line 762 of file zend_execute_API.c.

{
       zend_uint i;
       zval **original_return_value;
       HashTable *calling_symbol_table;
       zend_op_array *original_op_array;
       zend_op **original_opline_ptr;
       zend_class_entry *current_scope;
       zend_class_entry *current_called_scope;
       zend_class_entry *calling_scope = NULL;
       zend_class_entry *called_scope = NULL;
       zval *current_this;
       zend_execute_data execute_data;

       *fci->retval_ptr_ptr = NULL;

       if (!EG(active)) {
              return FAILURE; /* executor is already inactive */
       }

       if (EG(exception)) {
              return FAILURE; /* we would result in an instable executor otherwise */
       }

       switch (fci->size) {
              case sizeof(zend_fcall_info):
                     break; /* nothing to do currently */
              default:
                     zend_error(E_ERROR, "Corrupted fcall_info provided to zend_call_function()");
                     break;
       }

       /* Initialize execute_data */
       if (EG(current_execute_data)) {
              execute_data = *EG(current_execute_data);
              EX(op_array) = NULL;
              EX(opline) = NULL;
              EX(object) = NULL;
       } else {
              /* This only happens when we're called outside any execute()'s
               * It shouldn't be strictly necessary to NULL execute_data out,
               * but it may make bugs easier to spot
               */
              memset(&execute_data, 0, sizeof(zend_execute_data));
       }

       if (!fci_cache || !fci_cache->initialized) {
              zend_fcall_info_cache fci_cache_local;
              char *callable_name;
              char *error = NULL;

              if (!fci_cache) {
                     fci_cache = &fci_cache_local;
              }

              if (!zend_is_callable_ex(fci->function_name, fci->object_ptr, IS_CALLABLE_CHECK_SILENT, &callable_name, NULL, fci_cache, &error TSRMLS_CC)) {
                     if (error) {
                            zend_error(E_WARNING, "Invalid callback %s, %s", callable_name, error);
                            efree(error);
                     }
                     if (callable_name) {
                            efree(callable_name);
                     }
                     return FAILURE;
              } else if (error) {
                     /* Capitalize the first latter of the error message */
                     if (error[0] >= 'a' && error[0] <= 'z') {
                            error[0] += ('A' - 'a');
                     }
                     zend_error(E_STRICT, "%s", error);
                     efree(error);
              }
              efree(callable_name);
       }

       EX(function_state).function = fci_cache->function_handler;
       calling_scope = fci_cache->calling_scope;
       called_scope = fci_cache->called_scope;
       fci->object_ptr = fci_cache->object_ptr;
       EX(object) = fci->object_ptr;
       if (fci->object_ptr && Z_TYPE_P(fci->object_ptr) == IS_OBJECT &&
           (!EG(objects_store).object_buckets || !EG(objects_store).object_buckets[Z_OBJ_HANDLE_P(fci->object_ptr)].valid)) {
              return FAILURE;
       }

       if (EX(function_state).function->common.fn_flags & (ZEND_ACC_ABSTRACT|ZEND_ACC_DEPRECATED)) {
              if (EX(function_state).function->common.fn_flags & ZEND_ACC_ABSTRACT) {
                     zend_error_noreturn(E_ERROR, "Cannot call abstract method %s::%s()", EX(function_state).function->common.scope->name, EX(function_state).function->common.function_name);
              }
              if (EX(function_state).function->common.fn_flags & ZEND_ACC_DEPRECATED) {
                     zend_error(E_DEPRECATED, "Function %s%s%s() is deprecated",
                            EX(function_state).function->common.scope ? EX(function_state).function->common.scope->name : "",
                            EX(function_state).function->common.scope ? "::" : "",
                            EX(function_state).function->common.function_name);
              }
       }

       ZEND_VM_STACK_GROW_IF_NEEDED(fci->param_count + 1);

       for (i=0; i<fci->param_count; i++) {
              zval *param;

              if (EX(function_state).function->type == ZEND_INTERNAL_FUNCTION 
                     && (EX(function_state).function->common.fn_flags & ZEND_ACC_CALL_VIA_HANDLER) == 0 
                     && !ARG_SHOULD_BE_SENT_BY_REF(EX(function_state).function, i + 1)
                     && PZVAL_IS_REF(*fci->params[i])) {
                     ALLOC_ZVAL(param);
                     *param = **(fci->params[i]);
                     INIT_PZVAL(param);
                     zval_copy_ctor(param);
              } else if (ARG_SHOULD_BE_SENT_BY_REF(EX(function_state).function, i + 1)
                     && !PZVAL_IS_REF(*fci->params[i])) {

                     if (Z_REFCOUNT_PP(fci->params[i]) > 1) {
                            zval *new_zval;

                            if (fci->no_separation &&
                                !ARG_MAY_BE_SENT_BY_REF(EX(function_state).function, i + 1)) {
                                   if(i) {
                                          /* hack to clean up the stack */
                                          zend_vm_stack_push_nocheck((void *) (zend_uintptr_t)i TSRMLS_CC);
                                          zend_vm_stack_clear_multiple(TSRMLS_C);
                                   }

                                   zend_error(E_WARNING, "Parameter %d to %s%s%s() expected to be a reference, value given",
                                          i+1,
                                          EX(function_state).function->common.scope ? EX(function_state).function->common.scope->name : "",
                                          EX(function_state).function->common.scope ? "::" : "",
                                          EX(function_state).function->common.function_name);
                                   return FAILURE;
                            }

                            ALLOC_ZVAL(new_zval);
                            *new_zval = **fci->params[i];
                            zval_copy_ctor(new_zval);
                            Z_SET_REFCOUNT_P(new_zval, 1);
                            Z_DELREF_PP(fci->params[i]);
                            *fci->params[i] = new_zval;
                     }
                     Z_ADDREF_PP(fci->params[i]);
                     Z_SET_ISREF_PP(fci->params[i]);
                     param = *fci->params[i];
              } else if (*fci->params[i] != &EG(uninitialized_zval)) {
                     Z_ADDREF_PP(fci->params[i]);
                     param = *fci->params[i];
              } else {
                     ALLOC_ZVAL(param);
                     *param = **(fci->params[i]);
                     INIT_PZVAL(param);
              }
              zend_vm_stack_push_nocheck(param TSRMLS_CC);
       }

       EX(function_state).arguments = zend_vm_stack_top(TSRMLS_C);
       zend_vm_stack_push_nocheck((void*)(zend_uintptr_t)fci->param_count TSRMLS_CC);

       current_scope = EG(scope);
       EG(scope) = calling_scope;

       current_this = EG(This);

       current_called_scope = EG(called_scope);
       if (called_scope) {
              EG(called_scope) = called_scope;
       } else if (EX(function_state).function->type != ZEND_INTERNAL_FUNCTION) {
              EG(called_scope) = NULL;
       }

       if (fci->object_ptr) {
              if ((EX(function_state).function->common.fn_flags & ZEND_ACC_STATIC)) {
                     EG(This) = NULL;
              } else {
                     EG(This) = fci->object_ptr;

                     if (!PZVAL_IS_REF(EG(This))) {
                            Z_ADDREF_P(EG(This)); /* For $this pointer */
                     } else {
                            zval *this_ptr;

                            ALLOC_ZVAL(this_ptr);
                            *this_ptr = *EG(This);
                            INIT_PZVAL(this_ptr);
                            zval_copy_ctor(this_ptr);
                            EG(This) = this_ptr;
                     }
              }
       } else {
              EG(This) = NULL;
       }

       EX(prev_execute_data) = EG(current_execute_data);
       EG(current_execute_data) = &execute_data;

       if (EX(function_state).function->type == ZEND_USER_FUNCTION) {
              calling_symbol_table = EG(active_symbol_table);
              EG(scope) = EX(function_state).function->common.scope;
              if (fci->symbol_table) {
                     EG(active_symbol_table) = fci->symbol_table;
              } else {
                     EG(active_symbol_table) = NULL;
              }

              original_return_value = EG(return_value_ptr_ptr);
              original_op_array = EG(active_op_array);
              EG(return_value_ptr_ptr) = fci->retval_ptr_ptr;
              EG(active_op_array) = (zend_op_array *) EX(function_state).function;
              original_opline_ptr = EG(opline_ptr);
              zend_execute(EG(active_op_array) TSRMLS_CC);
              if (!fci->symbol_table && EG(active_symbol_table)) {
                     if (EG(symtable_cache_ptr)>=EG(symtable_cache_limit)) {
                            zend_hash_destroy(EG(active_symbol_table));
                            FREE_HASHTABLE(EG(active_symbol_table));
                     } else {
                            /* clean before putting into the cache, since clean
                               could call dtors, which could use cached hash */
                            zend_hash_clean(EG(active_symbol_table));
                            *(++EG(symtable_cache_ptr)) = EG(active_symbol_table);
                     }
              }
              EG(active_symbol_table) = calling_symbol_table;
              EG(active_op_array) = original_op_array;
              EG(return_value_ptr_ptr)=original_return_value;
              EG(opline_ptr) = original_opline_ptr;
       } else if (EX(function_state).function->type == ZEND_INTERNAL_FUNCTION) {
              int call_via_handler = (EX(function_state).function->common.fn_flags & ZEND_ACC_CALL_VIA_HANDLER) != 0;
              ALLOC_INIT_ZVAL(*fci->retval_ptr_ptr);
              if (EX(function_state).function->common.scope) {
                     EG(scope) = EX(function_state).function->common.scope;
              }
              ((zend_internal_function *) EX(function_state).function)->handler(fci->param_count, *fci->retval_ptr_ptr, fci->retval_ptr_ptr, fci->object_ptr, 1 TSRMLS_CC);
              /*  We shouldn't fix bad extensions here,
                     because it can break proper ones (Bug #34045)
              if (!EX(function_state).function->common.return_reference)
              {
                     INIT_PZVAL(*fci->retval_ptr_ptr);
              }*/
              if (EG(exception) && fci->retval_ptr_ptr) {
                     zval_ptr_dtor(fci->retval_ptr_ptr);
                     *fci->retval_ptr_ptr = NULL;
              }

              if (call_via_handler) {
                     /* We must re-initialize function again */
                     fci_cache->initialized = 0;
              }
       } else { /* ZEND_OVERLOADED_FUNCTION */
              ALLOC_INIT_ZVAL(*fci->retval_ptr_ptr);

              /* Not sure what should be done here if it's a static method */
              if (fci->object_ptr) {
                     Z_OBJ_HT_P(fci->object_ptr)->call_method(EX(function_state).function->common.function_name, fci->param_count, *fci->retval_ptr_ptr, fci->retval_ptr_ptr, fci->object_ptr, 1 TSRMLS_CC);
              } else {
                     zend_error_noreturn(E_ERROR, "Cannot call overloaded function for non-object");
              }

              if (EX(function_state).function->type == ZEND_OVERLOADED_FUNCTION_TEMPORARY) {
                     efree(EX(function_state).function->common.function_name);
              }
              efree(EX(function_state).function);

              if (EG(exception) && fci->retval_ptr_ptr) {
                     zval_ptr_dtor(fci->retval_ptr_ptr);
                     *fci->retval_ptr_ptr = NULL;
              }
       }
       zend_vm_stack_clear_multiple(TSRMLS_C);

       if (EG(This)) {
              zval_ptr_dtor(&EG(This));
       }
       EG(called_scope) = current_called_scope;
       EG(scope) = current_scope;
       EG(This) = current_this;
       EG(current_execute_data) = EX(prev_execute_data);

       if (EG(exception)) {
              zend_throw_exception_internal(NULL TSRMLS_CC);
       }
       return SUCCESS;
}

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ZEND_API int zend_delete_global_variable ( char *  name,
int name_len  TSRMLS_DC 
)

Definition at line 1656 of file zend_execute_API.c.

{
       zend_execute_data *ex;
       ulong hash_value = zend_inline_hash_func(name, name_len + 1);

       if (zend_hash_quick_exists(&EG(symbol_table), name, name_len + 1, hash_value)) {
              for (ex = EG(current_execute_data); ex; ex = ex->prev_execute_data) {
                     if (ex->op_array && ex->symbol_table == &EG(symbol_table)) {
                            int i;
                            for (i = 0; i < ex->op_array->last_var; i++) {
                                   if (ex->op_array->vars[i].hash_value == hash_value &&
                                          ex->op_array->vars[i].name_len == name_len &&
                                          !memcmp(ex->op_array->vars[i].name, name, name_len)
                                   ) {
                                          ex->CVs[i] = NULL;
                                          break;
                                   }
                            }
                     }
              }
              return zend_hash_quick_del(&EG(symbol_table), name, name_len + 1, hash_value);
       }
       return FAILURE;
}

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ZEND_API int zend_eval_string ( char *  str,
zval *  retval_ptr,
char *string_name  TSRMLS_DC 
)

Definition at line 1230 of file zend_execute_API.c.

{
       return zend_eval_stringl(str, strlen(str), retval_ptr, string_name TSRMLS_CC);
}

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ZEND_API int zend_eval_string_ex ( char *  str,
zval *  retval_ptr,
char *  string_name,
int handle_exceptions  TSRMLS_DC 
)

Definition at line 1249 of file zend_execute_API.c.

{
       return zend_eval_stringl_ex(str, strlen(str), retval_ptr, string_name, handle_exceptions TSRMLS_CC);
}

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ZEND_API int zend_eval_stringl ( char *  str,
int  str_len,
zval *  retval_ptr,
char *string_name  TSRMLS_DC 
)

Definition at line 1156 of file zend_execute_API.c.

{
       zval pv;
       zend_op_array *new_op_array;
       zend_op_array *original_active_op_array = EG(active_op_array);
       zend_uint original_compiler_options;
       int retval;

       if (retval_ptr) {
              Z_STRLEN(pv) = str_len + sizeof("return ;") - 1;
              Z_STRVAL(pv) = emalloc(Z_STRLEN(pv) + 1);
              memcpy(Z_STRVAL(pv), "return ", sizeof("return ") - 1);
              memcpy(Z_STRVAL(pv) + sizeof("return ") - 1, str, str_len);
              Z_STRVAL(pv)[Z_STRLEN(pv) - 1] = ';';
              Z_STRVAL(pv)[Z_STRLEN(pv)] = '\0';
       } else {
              Z_STRLEN(pv) = str_len;
              Z_STRVAL(pv) = str;
       }
       Z_TYPE(pv) = IS_STRING;

       /*printf("Evaluating '%s'\n", pv.value.str.val);*/

       original_compiler_options = CG(compiler_options);
       CG(compiler_options) = ZEND_COMPILE_DEFAULT_FOR_EVAL;
       new_op_array = zend_compile_string(&pv, string_name TSRMLS_CC);
       CG(compiler_options) = original_compiler_options;

       if (new_op_array) {
              zval *local_retval_ptr=NULL;
              zval **original_return_value_ptr_ptr = EG(return_value_ptr_ptr);
              zend_op **original_opline_ptr = EG(opline_ptr);
              int orig_interactive = CG(interactive);

              EG(return_value_ptr_ptr) = &local_retval_ptr;
              EG(active_op_array) = new_op_array;
              EG(no_extensions)=1;
              if (!EG(active_symbol_table)) {
                     zend_rebuild_symbol_table(TSRMLS_C);
              }
              CG(interactive) = 0;

              zend_execute(new_op_array TSRMLS_CC);

              CG(interactive) = orig_interactive;
              if (local_retval_ptr) {
                     if (retval_ptr) {
                            COPY_PZVAL_TO_ZVAL(*retval_ptr, local_retval_ptr);
                     } else {
                            zval_ptr_dtor(&local_retval_ptr);
                     }
              } else {
                     if (retval_ptr) {
                            INIT_ZVAL(*retval_ptr);
                     }
              }

              EG(no_extensions)=0;
              EG(opline_ptr) = original_opline_ptr;
              EG(active_op_array) = original_active_op_array;
              destroy_op_array(new_op_array TSRMLS_CC);
              efree(new_op_array);
              EG(return_value_ptr_ptr) = original_return_value_ptr_ptr;
              retval = SUCCESS;
       } else {
              retval = FAILURE;
       }
       if (retval_ptr) {
              zval_dtor(&pv);
       }
       return retval;
}

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ZEND_API int zend_eval_stringl_ex ( char *  str,
int  str_len,
zval *  retval_ptr,
char *  string_name,
int handle_exceptions  TSRMLS_DC 
)

Definition at line 1236 of file zend_execute_API.c.

{
       int result;

       result = zend_eval_stringl(str, str_len, retval_ptr, string_name TSRMLS_CC);
       if (handle_exceptions && EG(exception)) {
              zend_exception_error(EG(exception), E_ERROR TSRMLS_CC);
              result = FAILURE;
       }
       return result;
}

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static void zend_extension_activator ( zend_extension *extension  TSRMLS_DC) [static]

Definition at line 89 of file zend_execute_API.c.

{
       if (extension->activate) {
              extension->activate();
       }
}

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static void zend_extension_deactivator ( zend_extension *extension  TSRMLS_DC) [static]

Definition at line 97 of file zend_execute_API.c.

{
       if (extension->deactivate) {
              extension->deactivate();
       }
}

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zend_class_entry* zend_fetch_class ( const char *  class_name,
uint  class_name_len,
int fetch_type  TSRMLS_DC 
)

Definition at line 1531 of file zend_execute_API.c.

{
       zend_class_entry **pce;
       int use_autoload = (fetch_type & ZEND_FETCH_CLASS_NO_AUTOLOAD) == 0;
       int silent       = (fetch_type & ZEND_FETCH_CLASS_SILENT) != 0;

       fetch_type &= ZEND_FETCH_CLASS_MASK;

check_fetch_type:
       switch (fetch_type) {
              case ZEND_FETCH_CLASS_SELF:
                     if (!EG(scope)) {
                            zend_error(E_ERROR, "Cannot access self:: when no class scope is active");
                     }
                     return EG(scope);
              case ZEND_FETCH_CLASS_PARENT:
                     if (!EG(scope)) {
                            zend_error(E_ERROR, "Cannot access parent:: when no class scope is active");
                     }
                     if (!EG(scope)->parent) {
                            zend_error(E_ERROR, "Cannot access parent:: when current class scope has no parent");
                     }
                     return EG(scope)->parent;
              case ZEND_FETCH_CLASS_STATIC:
                     if (!EG(called_scope)) {
                            zend_error(E_ERROR, "Cannot access static:: when no class scope is active");
                     }
                     return EG(called_scope);
              case ZEND_FETCH_CLASS_AUTO: {
                            fetch_type = zend_get_class_fetch_type(class_name, class_name_len);
                            if (fetch_type!=ZEND_FETCH_CLASS_DEFAULT) {
                                   goto check_fetch_type;
                            }
                     }
                     break;
       }

       if (zend_lookup_class_ex(class_name, class_name_len, use_autoload, &pce TSRMLS_CC) == FAILURE) {
              if (use_autoload) {
                     if (!silent && !EG(exception)) {
                            if (fetch_type == ZEND_FETCH_CLASS_INTERFACE) {
                                   zend_error(E_ERROR, "Interface '%s' not found", class_name);
                            } else {
                                   zend_error(E_ERROR, "Class '%s' not found", class_name);
                            }      
                     }
              }
              return NULL;
       }
       return *pce;
}

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Definition at line 404 of file zend_execute_API.c.

{
       if (EG(active_op_array)) {
              return EG(active_op_array)->filename;
       } else {
              return "[no active file]";
       }
}

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Definition at line 414 of file zend_execute_API.c.

{
       if(EG(exception) && EG(opline_ptr) && active_opline->opcode == ZEND_HANDLE_EXCEPTION && 
              active_opline->lineno == 0 && EG(opline_before_exception)) {
              return EG(opline_before_exception)->lineno;
       }
       if (EG(opline_ptr)) {
              return active_opline->lineno;
       } else {
              return 0;
       }
}

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Definition at line 428 of file zend_execute_API.c.

{
       return EG(in_execution);
}

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ZEND_API int zend_is_true ( zval *  op)

Definition at line 477 of file zend_execute_API.c.

{
       return i_zend_is_true(op);
}

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ZEND_API int zend_lookup_class ( const char *  name,
int  name_length,
zend_class_entry ***ce  TSRMLS_DC 
)

Definition at line 1150 of file zend_execute_API.c.

{
       return zend_lookup_class_ex(name, name_length, 1, ce TSRMLS_CC);
}

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ZEND_API int zend_lookup_class_ex ( const char *  name,
int  name_length,
int  use_autoload,
zend_class_entry ***ce  TSRMLS_DC 
)

Definition at line 1044 of file zend_execute_API.c.

{
       zval **args[1];
       zval autoload_function;
       zval *class_name_ptr;
       zval *retval_ptr = NULL;
       int retval, lc_length;
       char *lc_name;
       char *lc_free;
       zend_fcall_info fcall_info;
       zend_fcall_info_cache fcall_cache;
       char dummy = 1;
       ulong hash;
       ALLOCA_FLAG(use_heap)

       if (name == NULL || !name_length) {
              return FAILURE;
       }

       lc_free = lc_name = do_alloca(name_length + 1, use_heap);
       zend_str_tolower_copy(lc_name, name, name_length);
       lc_length = name_length + 1;

       if (lc_name[0] == '\\') {
              lc_name += 1;
              lc_length -= 1;
       }

       hash = zend_inline_hash_func(lc_name, lc_length);

       if (zend_hash_quick_find(EG(class_table), lc_name, lc_length, hash, (void **) ce) == SUCCESS) {
              free_alloca(lc_free, use_heap);
              return SUCCESS;
       }

       /* The compiler is not-reentrant. Make sure we __autoload() only during run-time
        * (doesn't impact fuctionality of __autoload()
       */
       if (!use_autoload || zend_is_compiling(TSRMLS_C)) {
              free_alloca(lc_free, use_heap);
              return FAILURE;
       }

       if (EG(in_autoload) == NULL) {
              ALLOC_HASHTABLE(EG(in_autoload));
              zend_hash_init(EG(in_autoload), 0, NULL, NULL, 0);
       }

       if (zend_hash_quick_add(EG(in_autoload), lc_name, lc_length, hash, (void**)&dummy, sizeof(char), NULL) == FAILURE) {
              free_alloca(lc_free, use_heap);
              return FAILURE;
       }

       ZVAL_STRINGL(&autoload_function, ZEND_AUTOLOAD_FUNC_NAME, sizeof(ZEND_AUTOLOAD_FUNC_NAME) - 1, 0);

       ALLOC_ZVAL(class_name_ptr);
       INIT_PZVAL(class_name_ptr);
       if (name[0] == '\\') {
              ZVAL_STRINGL(class_name_ptr, name+1, name_length-1, 1);
       } else {
              ZVAL_STRINGL(class_name_ptr, name, name_length, 1);
       }

       args[0] = &class_name_ptr;

       fcall_info.size = sizeof(fcall_info);
       fcall_info.function_table = EG(function_table);
       fcall_info.function_name = &autoload_function;
       fcall_info.symbol_table = NULL;
       fcall_info.retval_ptr_ptr = &retval_ptr;
       fcall_info.param_count = 1;
       fcall_info.params = args;
       fcall_info.object_ptr = NULL;
       fcall_info.no_separation = 1;

       fcall_cache.initialized = EG(autoload_func) ? 1 : 0;
       fcall_cache.function_handler = EG(autoload_func);
       fcall_cache.calling_scope = NULL;
       fcall_cache.called_scope = NULL;
       fcall_cache.object_ptr = NULL;

       zend_exception_save(TSRMLS_C);
       retval = zend_call_function(&fcall_info, &fcall_cache TSRMLS_CC);
       zend_exception_restore(TSRMLS_C);

       EG(autoload_func) = fcall_cache.function_handler;

       zval_ptr_dtor(&class_name_ptr);

       zend_hash_quick_del(EG(in_autoload), lc_name, lc_length, hash);

       if (retval_ptr) {
              zval_ptr_dtor(&retval_ptr);
       }

       if (retval == FAILURE) {
              free_alloca(lc_free, use_heap);
              return FAILURE;
       }

       retval = zend_hash_quick_find(EG(class_table), lc_name, lc_length, hash, (void **) ce);
       free_alloca(lc_free, use_heap);
       return retval;
}

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Definition at line 1682 of file zend_execute_API.c.

{
       zend_uint i;
       zend_execute_data *ex;

       if (!EG(active_symbol_table)) {
              
              /* Search for last called user function */
              ex = EG(current_execute_data);
              while (ex && !ex->op_array) {
                     ex = ex->prev_execute_data;
              }
              if (ex && ex->symbol_table) {
                     EG(active_symbol_table) = ex->symbol_table;
                     return;
              }

              if (ex && ex->op_array) {
                     if (EG(symtable_cache_ptr)>=EG(symtable_cache)) {
                            /*printf("Cache hit!  Reusing %x\n", symtable_cache[symtable_cache_ptr]);*/
                            EG(active_symbol_table) = *(EG(symtable_cache_ptr)--);
                     } else {
                            ALLOC_HASHTABLE(EG(active_symbol_table));
                            zend_hash_init(EG(active_symbol_table), 0, NULL, ZVAL_PTR_DTOR, 0);
                            /*printf("Cache miss!  Initialized %x\n", EG(active_symbol_table));*/
                     }
                     ex->symbol_table = EG(active_symbol_table);

                     if (ex->op_array->this_var != -1 &&
                         !ex->CVs[ex->op_array->this_var] &&
                         EG(This)) {
                            ex->CVs[ex->op_array->this_var] = (zval**)ex->CVs + ex->op_array->last_var + ex->op_array->this_var;
                            *ex->CVs[ex->op_array->this_var] = EG(This);
                     }
                     for (i = 0; i < ex->op_array->last_var; i++) {
                            if (ex->CVs[i]) {
                                   zend_hash_quick_update(EG(active_symbol_table),
                                          ex->op_array->vars[i].name,
                                          ex->op_array->vars[i].name_len + 1,
                                          ex->op_array->vars[i].hash_value,
                                          (void**)ex->CVs[i],
                                          sizeof(zval*),
                                          (void**)&ex->CVs[i]);
                            }
                     }
              }
       }
}

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ZEND_API void zend_reset_all_cv ( HashTable *symbol_table  TSRMLS_DC)

Definition at line 1641 of file zend_execute_API.c.

{
       zend_execute_data *ex;
       int i;

       for (ex = EG(current_execute_data); ex; ex = ex->prev_execute_data) {
              if (ex->op_array && ex->symbol_table == symbol_table) {
                     for (i = 0; i < ex->op_array->last_var; i++) {
                            ex->CVs[i] = NULL;
                     }
              }
       }
}

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void zend_set_timeout ( long  seconds,
int  reset_signals 
)

Definition at line 1454 of file zend_execute_API.c.

{
       TSRMLS_FETCH();

       EG(timeout_seconds) = seconds;

#ifdef ZEND_WIN32
       if(!seconds) {
              return;
       }
       if (timeout_thread_initialized == 0 && InterlockedIncrement(&timeout_thread_initialized) == 1) {
              /* We start up this process-wide thread here and not in zend_startup(), because if Zend
               * is initialized inside a DllMain(), you're not supposed to start threads from it.
               */
              zend_init_timeout_thread();
       }
       PostThreadMessage(timeout_thread_id, WM_REGISTER_ZEND_TIMEOUT, (WPARAM) GetCurrentThreadId(), (LPARAM) seconds);
#else
#      ifdef HAVE_SETITIMER
       {
              struct itimerval t_r;              /* timeout requested */
              sigset_t sigset;

              if(seconds) {
                     t_r.it_value.tv_sec = seconds;
                     t_r.it_value.tv_usec = t_r.it_interval.tv_sec = t_r.it_interval.tv_usec = 0;

#      ifdef __CYGWIN__
                     setitimer(ITIMER_REAL, &t_r, NULL);
              }
              if(reset_signals) {
                     signal(SIGALRM, zend_timeout);
                     sigemptyset(&sigset);
                     sigaddset(&sigset, SIGALRM);
              }
#      else
                     setitimer(ITIMER_PROF, &t_r, NULL);
              }
              if(reset_signals) {
                     signal(SIGPROF, zend_timeout);
                     sigemptyset(&sigset);
                     sigaddset(&sigset, SIGPROF);
              }
#      endif
              if(reset_signals) {
                     sigprocmask(SIG_UNBLOCK, &sigset, NULL);
              }
       }
#      endif
#endif
}

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ZEND_API void zend_timeout ( int  dummy)

Definition at line 1329 of file zend_execute_API.c.

{
       TSRMLS_FETCH();

       if (zend_on_timeout) {
              zend_on_timeout(EG(timeout_seconds) TSRMLS_CC);
       }

       zend_error(E_ERROR, "Maximum execution time of %d second%s exceeded", EG(timeout_seconds), EG(timeout_seconds) == 1 ? "" : "s");
}

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Definition at line 1507 of file zend_execute_API.c.

{
#ifdef ZEND_WIN32
       if(timeout_thread_initialized) {
              PostThreadMessage(timeout_thread_id, WM_UNREGISTER_ZEND_TIMEOUT, (WPARAM) GetCurrentThreadId(), (LPARAM) 0);
       }
#else
#      ifdef HAVE_SETITIMER
       if (EG(timeout_seconds)) {
              struct itimerval no_timeout;

              no_timeout.it_value.tv_sec = no_timeout.it_value.tv_usec = no_timeout.it_interval.tv_sec = no_timeout.it_interval.tv_usec = 0;

#ifdef __CYGWIN__
              setitimer(ITIMER_REAL, &no_timeout, NULL);
#else
              setitimer(ITIMER_PROF, &no_timeout, NULL);
#endif
       }
#      endif
#endif
}

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void zend_verify_abstract_class ( zend_class_entry *ce  TSRMLS_DC)

Definition at line 1619 of file zend_execute_API.c.

{
       zend_abstract_info ai;

       if ((ce->ce_flags & ZEND_ACC_IMPLICIT_ABSTRACT_CLASS) && !(ce->ce_flags & ZEND_ACC_EXPLICIT_ABSTRACT_CLASS)) {
              memset(&ai, 0, sizeof(ai));

              zend_hash_apply_with_argument(&ce->function_table, (apply_func_arg_t) zend_verify_abstract_class_function, &ai TSRMLS_CC);

              if (ai.cnt) {
                     zend_error(E_ERROR, "Class %s contains %d abstract method%s and must therefore be declared abstract or implement the remaining methods (" MAX_ABSTRACT_INFO_FMT MAX_ABSTRACT_INFO_FMT MAX_ABSTRACT_INFO_FMT ")",
                            ce->name, ai.cnt,
                            ai.cnt > 1 ? "s" : "",
                            DISPLAY_ABSTRACT_FN(0),
                            DISPLAY_ABSTRACT_FN(1),
                            DISPLAY_ABSTRACT_FN(2)
                            );
              }
       }
}

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static int zend_verify_abstract_class_function ( zend_function fn,
zend_abstract_info *ai  TSRMLS_DC 
) [static]

Definition at line 1598 of file zend_execute_API.c.

{
       if (fn->common.fn_flags & ZEND_ACC_ABSTRACT) {
              if (ai->cnt < MAX_ABSTRACT_INFO_CNT) {
                     ai->afn[ai->cnt] = fn;
              }
              if (fn->common.fn_flags & ZEND_ACC_CTOR) {
                     if (!ai->ctor) {
                            ai->cnt++;
                            ai->ctor = 1;
                     } else {
                            ai->afn[ai->cnt] = NULL;
                     }
              } else {
                     ai->cnt++;
              }
       }
       return 0;
}

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static int zval_call_destructor ( zval **zv  TSRMLS_DC) [static]

Definition at line 210 of file zend_execute_API.c.

{
       if (Z_TYPE_PP(zv) == IS_OBJECT && Z_REFCOUNT_PP(zv) == 1) {
              return ZEND_HASH_APPLY_REMOVE;
       } else {
              return ZEND_HASH_APPLY_KEEP;
       }
}

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static void zval_deep_copy ( zval **  p) [static]

Definition at line 490 of file zend_execute_API.c.

{
       zval *value;

       ALLOC_ZVAL(value);
       *value = **p;
       Z_TYPE_P(value) &= ~IS_CONSTANT_INDEX;
       zval_copy_ctor(value);
       Z_TYPE_P(value) = Z_TYPE_PP(p);
       INIT_PZVAL(value);
       *p = value;
}

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ZEND_API int zval_update_constant ( zval **  pp,
void *arg  TSRMLS_DC 
)

Definition at line 710 of file zend_execute_API.c.

{
       return zval_update_constant_ex(pp, arg, NULL TSRMLS_CC);
}

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ZEND_API int zval_update_constant_ex ( zval **  pp,
void *  arg,
zend_class_entry *scope  TSRMLS_DC 
)

Definition at line 503 of file zend_execute_API.c.

{
       zval *p = *pp;
       zend_bool inline_change = (zend_bool) (zend_uintptr_t) arg;
       zval const_value;
       char *colon;

       if (IS_CONSTANT_VISITED(p)) {
              zend_error(E_ERROR, "Cannot declare self-referencing constant '%s'", Z_STRVAL_P(p));
       } else if ((Z_TYPE_P(p) & IS_CONSTANT_TYPE_MASK) == IS_CONSTANT) {
              int refcount;
              zend_uchar is_ref;

              SEPARATE_ZVAL_IF_NOT_REF(pp);
              p = *pp;

              MARK_CONSTANT_VISITED(p);

              refcount = Z_REFCOUNT_P(p);
              is_ref = Z_ISREF_P(p);

              if (!zend_get_constant_ex(p->value.str.val, p->value.str.len, &const_value, scope, Z_REAL_TYPE_P(p) TSRMLS_CC)) {
                     char *actual = Z_STRVAL_P(p);

                     if ((colon = zend_memrchr(Z_STRVAL_P(p), ':', Z_STRLEN_P(p)))) {
                            zend_error(E_ERROR, "Undefined class constant '%s'", Z_STRVAL_P(p));
                            Z_STRLEN_P(p) -= ((colon - Z_STRVAL_P(p)) + 1);
                            if (inline_change) {
                                   colon = estrndup(colon, Z_STRLEN_P(p));
                                   efree(Z_STRVAL_P(p));
                                   Z_STRVAL_P(p) = colon;
                            } else {
                                   Z_STRVAL_P(p) = colon + 1;
                            }
                     } else {
                            char *save = actual, *slash;
                            int actual_len = Z_STRLEN_P(p);
                            if ((Z_TYPE_P(p) & IS_CONSTANT_UNQUALIFIED) && (slash = (char *)zend_memrchr(actual, '\\', actual_len))) {
                                   actual = slash + 1;
                                   actual_len -= (actual - Z_STRVAL_P(p));
                                   if (inline_change) {
                                          actual = estrndup(actual, actual_len);
                                          Z_STRVAL_P(p) = actual;
                                          Z_STRLEN_P(p) = actual_len;
                                   }
                            }
                            if (actual[0] == '\\') {
                                   if (inline_change) {
                                          memmove(Z_STRVAL_P(p), Z_STRVAL_P(p)+1, Z_STRLEN_P(p));
                                          --Z_STRLEN_P(p);
                                   } else {
                                          ++actual;
                                   }
                                   --actual_len;
                            }
                            if ((Z_TYPE_P(p) & IS_CONSTANT_UNQUALIFIED) == 0) {
                                   int fix_save = 0;
                                   if (save[0] == '\\') {
                                          save++;
                                          fix_save = 1;
                                   }
                                   zend_error(E_ERROR, "Undefined constant '%s'", save);
                                   if (fix_save) {
                                          save--;
                                   }
                                   if (inline_change) {
                                          efree(save);
                                   }
                                   save = NULL;
                            }
                            if (inline_change && save && save != actual) {
                                   efree(save);
                            }
                            zend_error(E_NOTICE, "Use of undefined constant %s - assumed '%s'",  actual,  actual);
                            p->type = IS_STRING;
                            if (!inline_change) {
                                   Z_STRVAL_P(p) = actual;
                                   Z_STRLEN_P(p) = actual_len;
                                   zval_copy_ctor(p);
                            }
                     }
              } else {
                     if (inline_change) {
                            STR_FREE(Z_STRVAL_P(p));
                     }
                     *p = const_value;
              }

              Z_SET_REFCOUNT_P(p, refcount);
              Z_SET_ISREF_TO_P(p, is_ref);
       } else if (Z_TYPE_P(p) == IS_CONSTANT_ARRAY) {
              zval **element, *new_val;
              char *str_index;
              uint str_index_len;
              ulong num_index;
              int ret;

              SEPARATE_ZVAL_IF_NOT_REF(pp);
              p = *pp;
              Z_TYPE_P(p) = IS_ARRAY;

              if (!inline_change) {
                     zval *tmp;
                     HashTable *tmp_ht = NULL;

                     ALLOC_HASHTABLE(tmp_ht);
                     zend_hash_init(tmp_ht, zend_hash_num_elements(Z_ARRVAL_P(p)), NULL, ZVAL_PTR_DTOR, 0);
                     zend_hash_copy(tmp_ht, Z_ARRVAL_P(p), (copy_ctor_func_t) zval_deep_copy, (void *) &tmp, sizeof(zval *));
                     Z_ARRVAL_P(p) = tmp_ht;
              } 

              /* First go over the array and see if there are any constant indices */
              zend_hash_internal_pointer_reset(Z_ARRVAL_P(p));
              while (zend_hash_get_current_data(Z_ARRVAL_P(p), (void **) &element) == SUCCESS) {
                     if (!(Z_TYPE_PP(element) & IS_CONSTANT_INDEX)) {
                            zend_hash_move_forward(Z_ARRVAL_P(p));
                            continue;
                     }
                     Z_TYPE_PP(element) &= ~IS_CONSTANT_INDEX;
                     if (zend_hash_get_current_key_ex(Z_ARRVAL_P(p), &str_index, &str_index_len, &num_index, 0, NULL) != HASH_KEY_IS_STRING) {
                            zend_hash_move_forward(Z_ARRVAL_P(p));
                            continue;
                     }
                     if (!zend_get_constant_ex(str_index, str_index_len - 3, &const_value, scope, str_index[str_index_len - 2] TSRMLS_CC)) {
                            char *actual, *save = str_index;
                            if ((colon = zend_memrchr(str_index, ':', str_index_len - 3))) {
                                   zend_error(E_ERROR, "Undefined class constant '%s'", str_index);
                                   str_index_len -= ((colon - str_index) + 1);
                                   str_index = colon;
                            } else {
                                   if (str_index[str_index_len - 2] & IS_CONSTANT_UNQUALIFIED) {
                                          if ((actual = (char *)zend_memrchr(str_index, '\\', str_index_len - 3))) {
                                                 actual++;
                                                 str_index_len -= (actual - str_index);
                                                 str_index = actual;
                                          }
                                   }
                                   if (str_index[0] == '\\') {
                                          ++str_index;
                                          --str_index_len;
                                   }
                                   if (save[0] == '\\') {
                                          ++save;
                                   }
                                   if ((str_index[str_index_len - 2] & IS_CONSTANT_UNQUALIFIED) == 0) {
                                          zend_error(E_ERROR, "Undefined constant '%s'", save);
                                   }
                                   zend_error(E_NOTICE, "Use of undefined constant %s - assumed '%s'",   str_index, str_index);
                            }
                            ZVAL_STRINGL(&const_value, str_index, str_index_len-3, 1);
                     }

                     if (Z_REFCOUNT_PP(element) > 1) {
                            ALLOC_ZVAL(new_val);
                            *new_val = **element;
                            zval_copy_ctor(new_val);
                            Z_SET_REFCOUNT_P(new_val, 1);
                            Z_UNSET_ISREF_P(new_val);

                            /* preserve this bit for inheritance */
                            Z_TYPE_PP(element) |= IS_CONSTANT_INDEX;
                            zval_ptr_dtor(element);
                            *element = new_val;
                     }

                     switch (Z_TYPE(const_value)) {
                            case IS_STRING:
                                   ret = zend_symtable_update_current_key(Z_ARRVAL_P(p), Z_STRVAL(const_value), Z_STRLEN(const_value) + 1, HASH_UPDATE_KEY_IF_BEFORE);
                                   break;
                            case IS_BOOL:
                            case IS_LONG:
                                   ret = zend_hash_update_current_key_ex(Z_ARRVAL_P(p), HASH_KEY_IS_LONG, NULL, 0, Z_LVAL(const_value), HASH_UPDATE_KEY_IF_BEFORE, NULL);
                                   break;
                            case IS_DOUBLE:
                                   ret = zend_hash_update_current_key_ex(Z_ARRVAL_P(p), HASH_KEY_IS_LONG, NULL, 0, zend_dval_to_lval(Z_DVAL(const_value)), HASH_UPDATE_KEY_IF_BEFORE, NULL);
                                   break;
                            case IS_NULL:
                                   ret = zend_hash_update_current_key_ex(Z_ARRVAL_P(p), HASH_KEY_IS_STRING, "", 1, 0, HASH_UPDATE_KEY_IF_BEFORE, NULL);
                                   break;
                            default:
                                   ret = SUCCESS;
                                   break;
                     }
                     if (ret == SUCCESS) {
                            zend_hash_move_forward(Z_ARRVAL_P(p));
                     }
                     zval_dtor(&const_value);
              }
              zend_hash_apply_with_argument(Z_ARRVAL_P(p), (apply_func_arg_t) zval_update_constant_inline_change, (void *) scope TSRMLS_CC);
              zend_hash_internal_pointer_reset(Z_ARRVAL_P(p));
       }
       return 0;
}

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ZEND_API int zval_update_constant_inline_change ( zval **  pp,
void *scope  TSRMLS_DC 
)

Definition at line 698 of file zend_execute_API.c.

{
       return zval_update_constant_ex(pp, (void*)1, scope TSRMLS_CC);
}

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ZEND_API int zval_update_constant_no_inline_change ( zval **  pp,
void *scope  TSRMLS_DC 
)

Definition at line 704 of file zend_execute_API.c.

{
       return zval_update_constant_ex(pp, (void*)0, scope TSRMLS_CC);
}

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Variable Documentation

Definition at line 44 of file zend_execute_API.c.

Definition at line 45 of file zend_execute_API.c.

ZEND_API void(* zend_execute)(zend_op_array *op_array TSRMLS_DC)

Definition at line 40 of file zend_execute_API.c.

ZEND_API void(* zend_execute_internal)(zend_execute_data *execute_data_ptr, int return_value_used TSRMLS_DC)

Definition at line 41 of file zend_execute_API.c.