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https://github.com/php/php-src.git
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86 lines
2.5 KiB
C
86 lines
2.5 KiB
C
/*
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+----------------------------------------------------------------------+
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| Copyright (c) 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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| Authors: Andrey Hristov <andrey@php.net> |
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| Ulf Wendel <uw@php.net> |
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+----------------------------------------------------------------------+
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*/
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#include "php.h"
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#include "mysqlnd.h"
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#include "mysqlnd_debug.h"
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#include "mysqlnd_read_buffer.h"
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/* {{{ mysqlnd_read_buffer_is_empty */
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static zend_bool
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mysqlnd_read_buffer_is_empty(const MYSQLND_READ_BUFFER * const buffer)
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{
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return buffer->len? FALSE:TRUE;
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}
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/* }}} */
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/* {{{ mysqlnd_read_buffer_read */
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static void
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mysqlnd_read_buffer_read(MYSQLND_READ_BUFFER * buffer, const size_t count, zend_uchar * dest)
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{
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if (buffer->len >= count) {
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memcpy(dest, buffer->data + buffer->offset, count);
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buffer->offset += count;
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buffer->len -= count;
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}
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}
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/* }}} */
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/* {{{ mysqlnd_read_buffer_bytes_left */
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static size_t
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mysqlnd_read_buffer_bytes_left(const MYSQLND_READ_BUFFER * const buffer)
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{
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return buffer->len;
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}
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/* }}} */
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/* {{{ mysqlnd_read_buffer_free */
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static void
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mysqlnd_read_buffer_free(MYSQLND_READ_BUFFER ** buffer)
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{
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DBG_ENTER("mysqlnd_read_buffer_free");
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if (*buffer) {
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mnd_efree((*buffer)->data);
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mnd_efree(*buffer);
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*buffer = NULL;
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}
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DBG_VOID_RETURN;
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}
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/* }}} */
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/* {{{ mysqlnd_create_read_buffer */
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PHPAPI MYSQLND_READ_BUFFER *
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mysqlnd_create_read_buffer(const size_t count)
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{
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MYSQLND_READ_BUFFER * ret = mnd_emalloc(sizeof(MYSQLND_READ_BUFFER));
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DBG_ENTER("mysqlnd_create_read_buffer");
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ret->is_empty = mysqlnd_read_buffer_is_empty;
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ret->read = mysqlnd_read_buffer_read;
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ret->bytes_left = mysqlnd_read_buffer_bytes_left;
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ret->free_buffer = mysqlnd_read_buffer_free;
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ret->data = mnd_emalloc(count);
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ret->size = ret->len = count;
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ret->offset = 0;
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DBG_RETURN(ret);
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}
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/* }}} */
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