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- Preliminary support for dynamic arrays. I need it on order to try out a
new hash implementation. It isn't used anywhere.
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@ -11,7 +11,7 @@ libZend_c_la_SOURCES=zend-scanner.c
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libZend_la_SOURCES=\
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zend-parser.y \
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zend_alloc.c zend_compile.c zend_constants.c \
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zend_alloc.c zend_compile.c zend_constants.c zend_dynamic_array.c \
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zend_execute.c zend_execute_API.c zend_highlight.c zend_llist.c \
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zend_opcode.c zend_operators.c zend_ptr_stack.c zend_stack.c \
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zend_variables.c zend.c zend_API.c zend_extensions.c zend_hash.c \
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62
Zend/zend_dynamic_array.c
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62
Zend/zend_dynamic_array.c
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@ -0,0 +1,62 @@
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/*
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+----------------------------------------------------------------------+
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| Zend Engine |
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+----------------------------------------------------------------------+
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| Copyright (c) 1998, 1999 Andi Gutmans, Zeev Suraski |
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+----------------------------------------------------------------------+
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| This source file is subject to version 0.91 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 at through the world-wide-web at |
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| http://www.zend.com/license/0_91.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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#include "zend.h"
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typedef struct _dynamic_array {
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char *array;
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unsigned int element_size;
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unsigned int current;
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unsigned int allocated;
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} dynamic_array;
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ZEND_API int zend_dynamic_array_init(dynamic_array *da, unsigned int element_size, unsigned int size)
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{
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da->element_size = element_size;
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da->allocated = size;
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da->current = 0;
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da->array = (char *) emalloc(size*element_size);
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if (da->array == NULL) {
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return 1;
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}
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return 0;
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}
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ZEND_API void *zend_dynamic_array_push(dynamic_array *da)
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{
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if (da->current == da->allocated) {
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da->allocated *= 2;
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da->array = (char *) erealloc(da->array, da->allocated*da->element_size);
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}
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return (da->array+(da->current++)*da->element_size);
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}
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ZEND_API void *zend_dynamic_array_pop(dynamic_array *da)
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{
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return (da->array+(--(da->current))*da->element_size);
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}
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ZEND_API void *zend_dynamic_array_get_element(dynamic_array *da, unsigned int index)
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{
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if (index >= da->current) {
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return NULL;
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}
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return (da->array+index*da->element_size);
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}
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38
Zend/zend_dynamic_array.h
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38
Zend/zend_dynamic_array.h
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@ -0,0 +1,38 @@
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/*
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+----------------------------------------------------------------------+
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| Zend Engine |
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+----------------------------------------------------------------------+
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| Copyright (c) 1998, 1999 Andi Gutmans, Zeev Suraski |
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+----------------------------------------------------------------------+
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| This source file is subject to version 0.91 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 at through the world-wide-web at |
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| http://www.zend.com/license/0_91.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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#ifndef _DYNAMIC_ARRAY_H
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#define _DYNAMIC_ARRAY_H
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typedef struct _dynamic_array {
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char *array;
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unsigned int element_size;
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unsigned int last_used;
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unsigned int allocated;
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} dynamic_array;
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BEGIN_EXTERN_C()
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ZEND_API int zend_dynamic_array_init(dynamic_array *da);
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ZEND_API void *zend_dynamic_array_push(dynamic_array *da);
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ZEND_API void *zend_dynamic_array_pop(dynamic_array *da);
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ZEND_API void *zend_dynamic_array_get_element(dynamic_array *da, unsigned int index);
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END_EXTERN_C()
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#endif /* _ZEND_DYNAMIC_ARRAY_H */
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