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62 lines
2.3 KiB
C
62 lines
2.3 KiB
C
/*
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+----------------------------------------------------------------------+
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| PHP Version 7 |
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+----------------------------------------------------------------------+
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| Copyright (c) 1997-2016 The PHP Group |
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+----------------------------------------------------------------------+
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| This source file is subject to version 3.01 of the PHP 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.php.net/license/3_01.txt |
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| If you did not receive a copy of the PHP 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@php.net so we can mail you a copy immediately. |
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+----------------------------------------------------------------------+
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| Author: Dmitry Stogov <dmitry@zend.com> |
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+----------------------------------------------------------------------+
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*/
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#include <zend.h>
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#include "zend_smart_str_public.h"
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#define SMART_STR_OVERHEAD (ZEND_MM_OVERHEAD + _ZSTR_HEADER_SIZE)
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#ifndef SMART_STR_PAGE
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# define SMART_STR_PAGE 4096
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#endif
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#ifndef SMART_STR_START_SIZE
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# define SMART_STR_START_SIZE (256 - SMART_STR_OVERHEAD - 1)
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#endif
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#define SMART_STR_NEW_SIZE(len) \
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(((len + SMART_STR_OVERHEAD + SMART_STR_PAGE) & ~(SMART_STR_PAGE - 1)) - SMART_STR_OVERHEAD - 1)
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ZEND_API void ZEND_FASTCALL smart_str_erealloc(smart_str *str, size_t len)
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{
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if (UNEXPECTED(!str->s)) {
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str->a = len < SMART_STR_START_SIZE
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? SMART_STR_START_SIZE
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: SMART_STR_NEW_SIZE(len);
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str->s = zend_string_alloc(str->a, 0);
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ZSTR_LEN(str->s) = 0;
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} else {
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str->a = SMART_STR_NEW_SIZE(len);
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str->s = (zend_string *) erealloc2(str->s, _ZSTR_HEADER_SIZE + str->a + 1, _ZSTR_HEADER_SIZE + ZSTR_LEN(str->s) + 1);
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}
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}
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ZEND_API void ZEND_FASTCALL smart_str_realloc(smart_str *str, size_t len)
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{
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if (UNEXPECTED(!str->s)) {
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str->a = len < SMART_STR_START_SIZE
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? SMART_STR_START_SIZE
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: SMART_STR_NEW_SIZE(len);
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str->s = zend_string_alloc(str->a, 1);
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ZSTR_LEN(str->s) = 0;
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} else {
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str->a = SMART_STR_NEW_SIZE(len);
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str->s = (zend_string *) realloc(str->s, _ZSTR_HEADER_SIZE + str->a + 1);
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}
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}
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