mirror of
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460 lines
17 KiB
C
460 lines
17 KiB
C
/*
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+----------------------------------------------------------------------+
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| Zend Engine |
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+----------------------------------------------------------------------+
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| Copyright (c) 1998-2014 Zend Technologies Ltd. (http://www.zend.com) |
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+----------------------------------------------------------------------+
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| This source file is subject to version 2.00 of the Zend license, |
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| that is bundled with this package in the file LICENSE, and is |
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| available through the world-wide-web at the following url: |
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| http://www.zend.com/license/2_00.txt. |
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| If you did not receive a copy of the Zend license and are unable to |
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| obtain it through the world-wide-web, please send a note to |
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| license@zend.com so we can mail you a copy immediately. |
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+----------------------------------------------------------------------+
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| Authors: Andi Gutmans <andi@zend.com> |
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| Zeev Suraski <zeev@zend.com> |
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+----------------------------------------------------------------------+
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*/
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/* $Id$ */
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#ifndef ZEND_HASH_H
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#define ZEND_HASH_H
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#include <sys/types.h>
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#include "zend.h"
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#define HASH_KEY_IS_STRING 1
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#define HASH_KEY_IS_LONG 2
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#define HASH_KEY_NON_EXISTENT 3
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#define HASH_KEY_NON_EXISTANT HASH_KEY_NON_EXISTENT /* Keeping old define (with typo) for backward compatibility */
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#define HASH_UPDATE (1<<0)
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#define HASH_ADD (1<<1)
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#define HASH_NEXT_INSERT (1<<2)
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#define HASH_UPDATE_KEY_IF_NONE 0
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#define HASH_UPDATE_KEY_IF_BEFORE 1
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#define HASH_UPDATE_KEY_IF_AFTER 2
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#define HASH_UPDATE_KEY_ANYWAY 3
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#define INVALID_IDX ((uint)-1)
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#define HASH_FLAG_PERSISTENT (1<<0)
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#define HASH_FLAG_APPLY_PROTECTION (1<<1)
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#define HASH_FLAG_PACKED (1<<2)
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#define HASH_MASK_CONSISTENCY 0x60
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typedef struct _zend_hash_key {
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ulong h;
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zend_string *key;
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} zend_hash_key;
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typedef zend_bool (*merge_checker_func_t)(HashTable *target_ht, zval *source_data, zend_hash_key *hash_key, void *pParam);
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typedef uint HashPosition;
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BEGIN_EXTERN_C()
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/* startup/shutdown */
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ZEND_API int _zend_hash_init(HashTable *ht, uint nSize, dtor_func_t pDestructor, zend_bool persistent ZEND_FILE_LINE_DC);
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ZEND_API int _zend_hash_init_ex(HashTable *ht, uint nSize, dtor_func_t pDestructor, zend_bool persistent, zend_bool bApplyProtection ZEND_FILE_LINE_DC);
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ZEND_API void zend_hash_destroy(HashTable *ht);
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ZEND_API void zend_hash_clean(HashTable *ht);
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#define zend_hash_init(ht, nSize, pHashFunction, pDestructor, persistent) _zend_hash_init((ht), (nSize), (pDestructor), (persistent) ZEND_FILE_LINE_CC)
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#define zend_hash_init_ex(ht, nSize, pHashFunction, pDestructor, persistent, bApplyProtection) _zend_hash_init_ex((ht), (nSize), (pDestructor), (persistent), (bApplyProtection) ZEND_FILE_LINE_CC)
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ZEND_API void zend_hash_packed_to_hash(HashTable *ht);
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ZEND_API void zend_hash_to_packed(HashTable *ht);
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/* additions/updates/changes */
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ZEND_API zval *_zend_hash_add_or_update(HashTable *ht, zend_string *key, zval *pData, int flag ZEND_FILE_LINE_DC);
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#define zend_hash_update(ht, key, pData) \
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_zend_hash_add_or_update(ht, key, pData, HASH_UPDATE ZEND_FILE_LINE_CC)
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#define zend_hash_add(ht, key, pData) \
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_zend_hash_add_or_update(ht, key, pData, HASH_ADD ZEND_FILE_LINE_CC)
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ZEND_API zval *_zend_hash_str_add_or_update(HashTable *ht, const char *key, int len, zval *pData, int flag ZEND_FILE_LINE_DC);
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#define zend_hash_str_update(ht, key, len, pData) \
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_zend_hash_str_add_or_update(ht, key, len, pData, HASH_UPDATE ZEND_FILE_LINE_CC)
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#define zend_hash_str_add(ht, key, len, pData) \
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_zend_hash_str_add_or_update(ht, key, len, pData, HASH_ADD ZEND_FILE_LINE_CC)
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ZEND_API zval *_zend_hash_index_update_or_next_insert(HashTable *ht, ulong h, zval *pData, int flag ZEND_FILE_LINE_DC);
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#define zend_hash_index_update(ht, h, pData) \
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_zend_hash_index_update_or_next_insert(ht, h, pData, HASH_UPDATE ZEND_FILE_LINE_CC)
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#define zend_hash_next_index_insert(ht, pData) \
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_zend_hash_index_update_or_next_insert(ht, 0, pData, HASH_NEXT_INSERT ZEND_FILE_LINE_CC)
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ZEND_API zval *zend_hash_add_empty_element(HashTable *ht, zend_string *key);
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ZEND_API zval *zend_hash_str_add_empty_element(HashTable *ht, const char *key, int len);
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#define ZEND_HASH_APPLY_KEEP 0
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#define ZEND_HASH_APPLY_REMOVE 1<<0
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#define ZEND_HASH_APPLY_STOP 1<<1
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typedef int (*apply_func_t)(zval *pDest TSRMLS_DC);
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typedef int (*apply_func_arg_t)(zval *pDest, void *argument TSRMLS_DC);
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typedef int (*apply_func_args_t)(zval *pDest TSRMLS_DC, int num_args, va_list args, zend_hash_key *hash_key);
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ZEND_API void zend_hash_graceful_destroy(HashTable *ht);
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ZEND_API void zend_hash_graceful_reverse_destroy(HashTable *ht);
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ZEND_API void zend_hash_apply(HashTable *ht, apply_func_t apply_func TSRMLS_DC);
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ZEND_API void zend_hash_apply_with_argument(HashTable *ht, apply_func_arg_t apply_func, void * TSRMLS_DC);
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ZEND_API void zend_hash_apply_with_arguments(HashTable *ht TSRMLS_DC, apply_func_args_t apply_func, int, ...);
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/* This function should be used with special care (in other words,
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* it should usually not be used). When used with the ZEND_HASH_APPLY_STOP
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* return value, it assumes things about the order of the elements in the hash.
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* Also, it does not provide the same kind of reentrancy protection that
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* the standard apply functions do.
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*/
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ZEND_API void zend_hash_reverse_apply(HashTable *ht, apply_func_t apply_func TSRMLS_DC);
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/* Deletes */
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ZEND_API int zend_hash_del(HashTable *ht, zend_string *key);
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ZEND_API int zend_hash_str_del(HashTable *ht, const char *key, int len);
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ZEND_API int zend_hash_index_del(HashTable *ht, ulong h);
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/* Data retreival */
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ZEND_API zval *zend_hash_find(const HashTable *ht, zend_string *key);
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ZEND_API zval *zend_hash_str_find(const HashTable *ht, const char *key, int len);
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ZEND_API zval *zend_hash_index_find(const HashTable *ht, ulong h);
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/* Misc */
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ZEND_API int zend_hash_exists(const HashTable *ht, zend_string *key);
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ZEND_API int zend_hash_str_exists(const HashTable *ht, const char *str, int len);
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ZEND_API int zend_hash_index_exists(const HashTable *ht, ulong h);
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ZEND_API ulong zend_hash_next_free_element(const HashTable *ht);
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/* traversing */
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#define zend_hash_has_more_elements_ex(ht, pos) \
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(zend_hash_get_current_key_type_ex(ht, pos) == HASH_KEY_NON_EXISTENT ? FAILURE : SUCCESS)
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ZEND_API int zend_hash_move_forward_ex(HashTable *ht, HashPosition *pos);
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ZEND_API int zend_hash_move_backwards_ex(HashTable *ht, HashPosition *pos);
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ZEND_API int zend_hash_get_current_key_ex(const HashTable *ht, zend_string **str_index, ulong *num_index, zend_bool duplicate, HashPosition *pos);
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ZEND_API void zend_hash_get_current_key_zval_ex(const HashTable *ht, zval *key, HashPosition *pos);
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ZEND_API int zend_hash_get_current_key_type_ex(HashTable *ht, HashPosition *pos);
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ZEND_API zval *zend_hash_get_current_data_ex(HashTable *ht, HashPosition *pos);
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ZEND_API void zend_hash_internal_pointer_reset_ex(HashTable *ht, HashPosition *pos);
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ZEND_API void zend_hash_internal_pointer_end_ex(HashTable *ht, HashPosition *pos);
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ZEND_API int zend_hash_update_current_key_ex(HashTable *ht, int key_type, zend_string *str_index, ulong num_index, int mode, HashPosition *pos);
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typedef struct _HashPointer {
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HashPosition pos;
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HashTable *ht;
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ulong h;
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} HashPointer;
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ZEND_API int zend_hash_get_pointer(const HashTable *ht, HashPointer *ptr);
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ZEND_API int zend_hash_set_pointer(HashTable *ht, const HashPointer *ptr);
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#define zend_hash_has_more_elements(ht) \
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zend_hash_has_more_elements_ex(ht, NULL)
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#define zend_hash_move_forward(ht) \
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zend_hash_move_forward_ex(ht, NULL)
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#define zend_hash_move_backwards(ht) \
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zend_hash_move_backwards_ex(ht, NULL)
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#define zend_hash_get_current_key(ht, str_index, num_index, duplicate) \
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zend_hash_get_current_key_ex(ht, str_index, num_index, duplicate, NULL)
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#define zend_hash_get_current_key_zval(ht, key) \
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zend_hash_get_current_key_zval_ex(ht, key, NULL)
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#define zend_hash_get_current_key_type(ht) \
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zend_hash_get_current_key_type_ex(ht, NULL)
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#define zend_hash_get_current_data(ht) \
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zend_hash_get_current_data_ex(ht, NULL)
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#define zend_hash_internal_pointer_reset(ht) \
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zend_hash_internal_pointer_reset_ex(ht, NULL)
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#define zend_hash_internal_pointer_end(ht) \
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zend_hash_internal_pointer_end_ex(ht, NULL)
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#define zend_hash_update_current_key(ht, key_type, str_index, str_length, num_index) \
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zend_hash_update_current_key_ex(ht, key_type, str_index, str_length, num_index, HASH_UPDATE_KEY_ANYWAY, NULL)
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/* Copying, merging and sorting */
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ZEND_API void zend_hash_copy(HashTable *target, HashTable *source, copy_ctor_func_t pCopyConstructor);
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ZEND_API void _zend_hash_merge(HashTable *target, HashTable *source, copy_ctor_func_t pCopyConstructor, int overwrite ZEND_FILE_LINE_DC);
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ZEND_API void zend_hash_merge_ex(HashTable *target, HashTable *source, copy_ctor_func_t pCopyConstructor, merge_checker_func_t pMergeSource, void *pParam);
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ZEND_API int zend_hash_sort(HashTable *ht, sort_func_t sort_func, compare_func_t compare_func, int renumber TSRMLS_DC);
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ZEND_API int zend_hash_compare(HashTable *ht1, HashTable *ht2, compare_func_t compar, zend_bool ordered TSRMLS_DC);
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ZEND_API zval *zend_hash_minmax(const HashTable *ht, compare_func_t compar, int flag TSRMLS_DC);
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#define zend_hash_merge(target, source, pCopyConstructor, overwrite) \
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_zend_hash_merge(target, source, pCopyConstructor, overwrite ZEND_FILE_LINE_CC)
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ZEND_API int zend_hash_num_elements(const HashTable *ht);
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ZEND_API int zend_hash_rehash(HashTable *ht);
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#if ZEND_DEBUG
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/* debug */
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void zend_hash_display_pListTail(const HashTable *ht);
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void zend_hash_display(const HashTable *ht);
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#endif
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END_EXTERN_C()
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#define ZEND_INIT_SYMTABLE(ht) \
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ZEND_INIT_SYMTABLE_EX(ht, 2, 0)
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#define ZEND_INIT_SYMTABLE_EX(ht, n, persistent) \
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zend_hash_init(ht, n, NULL, ZVAL_PTR_DTOR, persistent)
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#define ZEND_HANDLE_NUMERIC_EX(key, length, idx, func) do { \
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register const char *tmp = key; \
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\
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if (*tmp == '-') { \
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tmp++; \
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} \
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if (*tmp >= '0' && *tmp <= '9') { /* possibly a numeric index */ \
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const char *end = key + length - 1; \
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\
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if ((*end != '\0') /* not a null terminated string */ \
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|| (*tmp == '0' && length > 2) /* numbers with leading zeros */ \
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|| (end - tmp > MAX_LENGTH_OF_LONG - 1) /* number too long */ \
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|| (SIZEOF_LONG == 4 && \
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end - tmp == MAX_LENGTH_OF_LONG - 1 && \
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*tmp > '2')) { /* overflow */ \
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break; \
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} \
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idx = (*tmp - '0'); \
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while (++tmp != end && *tmp >= '0' && *tmp <= '9') { \
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idx = (idx * 10) + (*tmp - '0'); \
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} \
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if (tmp == end) { \
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if (*key == '-') { \
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if (idx-1 > LONG_MAX) { /* overflow */ \
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break; \
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} \
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idx = 0 - idx; \
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} else if (idx > LONG_MAX) { /* overflow */ \
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break; \
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} \
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func; \
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} \
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} \
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} while (0)
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#define ZEND_HANDLE_NUMERIC(key, length, func) do { \
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ulong idx; \
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\
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ZEND_HANDLE_NUMERIC_EX(key, length, idx, return func); \
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} while (0)
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static inline zval *zend_symtable_update(HashTable *ht, zend_string *key, zval *pData)
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{
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ZEND_HANDLE_NUMERIC(key->val, key->len+1, zend_hash_index_update(ht, idx, pData));
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return zend_hash_update(ht, key, pData);
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}
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static inline int zend_symtable_del(HashTable *ht, zend_string *key)
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{
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ZEND_HANDLE_NUMERIC(key->val, key->len+1, zend_hash_index_del(ht, idx));
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return zend_hash_del(ht, key);
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}
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static inline zval *zend_symtable_find(const HashTable *ht, zend_string *key)
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{
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ZEND_HANDLE_NUMERIC(key->val, key->len+1, zend_hash_index_find(ht, idx));
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return zend_hash_find(ht, key);
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}
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static inline int zend_symtable_exists(HashTable *ht, zend_string *key)
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{
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ZEND_HANDLE_NUMERIC(key->val, key->len+1, zend_hash_index_exists(ht, idx));
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return zend_hash_exists(ht, key);
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}
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static inline zval *zend_symtable_str_update(HashTable *ht, const char *str, int len, zval *pData)
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{
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ZEND_HANDLE_NUMERIC(str, len+1, zend_hash_index_update(ht, idx, pData));
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return zend_hash_str_update(ht, str, len, pData);
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}
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static inline int zend_symtable_str_del(HashTable *ht, const char *str, int len)
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{
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ZEND_HANDLE_NUMERIC(str, len+1, zend_hash_index_del(ht, idx));
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return zend_hash_str_del(ht, str, len);
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}
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static inline zval *zend_symtable_str_find(HashTable *ht, const char *str, int len)
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{
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ZEND_HANDLE_NUMERIC(str, len+1, zend_hash_index_find(ht, idx));
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return zend_hash_str_find(ht, str, len);
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}
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static inline int zend_symtable_str_exists(HashTable *ht, const char *str, int len)
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{
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ZEND_HANDLE_NUMERIC(str, len+1, zend_hash_index_exists(ht, idx));
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return zend_hash_str_exists(ht, str, len);
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}
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static inline int zend_symtable_update_current_key_ex(HashTable *ht, zend_string *key, int mode, HashPosition *pos)
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{
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ZEND_HANDLE_NUMERIC(key->val, key->len+1, zend_hash_update_current_key_ex(ht, HASH_KEY_IS_LONG, NULL, idx, mode, pos));
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return zend_hash_update_current_key_ex(ht, HASH_KEY_IS_STRING, key, 0, mode, pos);
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}
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#define zend_symtable_update_current_key(ht, key, mode) \
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zend_symtable_update_current_key_ex(ht, key, mode, NULL)
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static inline void *zend_hash_add_ptr(HashTable *ht, zend_string *key, void *pData)
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{
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zval tmp, *zv;
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ZVAL_PTR(&tmp, pData);
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zv = zend_hash_add(ht, key, &tmp);
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return zv ? Z_PTR_P(zv) : NULL;
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}
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static inline void *zend_hash_str_add_ptr(HashTable *ht, const char *str, int len, void *pData)
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{
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zval tmp, *zv;
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ZVAL_PTR(&tmp, pData);
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zv = zend_hash_str_add(ht, str, len, &tmp);
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return zv ? Z_PTR_P(zv) : NULL;
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}
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static inline void *zend_hash_update_ptr(HashTable *ht, zend_string *key, void *pData)
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{
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zval tmp, *zv;
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ZVAL_PTR(&tmp, pData);
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zv = zend_hash_update(ht, key, &tmp);
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return zv ? Z_PTR_P(zv) : NULL;
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}
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static inline void *zend_hash_str_update_ptr(HashTable *ht, const char *str, int len, void *pData)
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{
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zval tmp, *zv;
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ZVAL_PTR(&tmp, pData);
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zv = zend_hash_str_update(ht, str, len, &tmp);
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return zv ? Z_PTR_P(zv) : NULL;
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}
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static inline void *zend_hash_add_mem(HashTable *ht, zend_string *key, void *pData, size_t size)
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{
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void *p;
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p = pemalloc(size, ht->flags & HASH_FLAG_PERSISTENT);
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memcpy(p, pData, size);
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return zend_hash_add_ptr(ht, key, p);
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}
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static inline void *zend_hash_str_add_mem(HashTable *ht, const char *str, int len, void *pData, size_t size)
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{
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void *p;
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p = pemalloc(size, ht->flags & HASH_FLAG_PERSISTENT);
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memcpy(p, pData, size);
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return zend_hash_str_add_ptr(ht, str, len, p);
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}
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static inline void *zend_hash_update_mem(HashTable *ht, zend_string *key, void *pData, size_t size)
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{
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void *p;
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p = pemalloc(size, ht->flags & HASH_FLAG_PERSISTENT);
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memcpy(p, pData, size);
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return zend_hash_update_ptr(ht, key, p);
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}
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static inline void *zend_hash_str_update_mem(HashTable *ht, const char *str, int len, void *pData, size_t size)
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{
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void *p;
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p = pemalloc(size, ht->flags & HASH_FLAG_PERSISTENT);
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memcpy(p, pData, size);
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return zend_hash_str_update_ptr(ht, str, len, p);
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}
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static inline void *zend_hash_index_update_ptr(HashTable *ht, ulong h, void *pData)
|
|
{
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|
zval tmp, *zv;
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|
|
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ZVAL_PTR(&tmp, pData);
|
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zv = zend_hash_index_update(ht, h, &tmp);
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return zv ? Z_PTR_P(zv) : NULL;
|
|
}
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static inline void *zend_hash_next_index_insert_ptr(HashTable *ht, void *pData)
|
|
{
|
|
zval tmp, *zv;
|
|
|
|
ZVAL_PTR(&tmp, pData);
|
|
zv = zend_hash_next_index_insert(ht, &tmp);
|
|
return zv ? Z_PTR_P(zv) : NULL;
|
|
}
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|
|
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static inline void *zend_hash_index_update_mem(HashTable *ht, ulong h, void *pData, size_t size)
|
|
{
|
|
void *p;
|
|
|
|
p = pemalloc(size, ht->flags & HASH_FLAG_PERSISTENT);
|
|
memcpy(p, pData, size);
|
|
return zend_hash_index_update_ptr(ht, h, p);
|
|
}
|
|
|
|
static inline void *zend_hash_next_index_insert_mem(HashTable *ht, void *pData, size_t size)
|
|
{
|
|
void *p;
|
|
|
|
p = pemalloc(size, ht->flags & HASH_FLAG_PERSISTENT);
|
|
memcpy(p, pData, size);
|
|
return zend_hash_next_index_insert_ptr(ht, p);
|
|
}
|
|
|
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static inline void *zend_hash_find_ptr(const HashTable *ht, zend_string *key)
|
|
{
|
|
zval *zv;
|
|
|
|
zv = zend_hash_find(ht, key);
|
|
return zv ? Z_PTR_P(zv) : NULL;
|
|
}
|
|
|
|
static inline void *zend_hash_str_find_ptr(const HashTable *ht, const char *str, int len)
|
|
{
|
|
zval *zv;
|
|
|
|
zv = zend_hash_str_find(ht, str, len);
|
|
return zv ? Z_PTR_P(zv) : NULL;
|
|
}
|
|
|
|
static inline void *zend_hash_index_find_ptr(const HashTable *ht, ulong h)
|
|
{
|
|
zval *zv;
|
|
|
|
zv = zend_hash_index_find(ht, h);
|
|
return zv ? Z_PTR_P(zv) : NULL;
|
|
}
|
|
|
|
static inline void *zend_hash_get_current_data_ptr_ex(HashTable *ht, HashPosition *pos)
|
|
{
|
|
zval *zv;
|
|
|
|
zv = zend_hash_get_current_data_ex(ht, pos);
|
|
return zv ? Z_PTR_P(zv) : NULL;
|
|
}
|
|
|
|
#define zend_hash_get_current_data_ptr(ht) \
|
|
zend_hash_get_current_data_ptr_ex(ht, NULL)
|
|
|
|
#endif /* ZEND_HASH_H */
|
|
|
|
/*
|
|
* Local variables:
|
|
* tab-width: 4
|
|
* c-basic-offset: 4
|
|
* indent-tabs-mode: t
|
|
* End:
|
|
*/
|