source: src/router/php7/ext/mysqlnd/mysqlnd_read_buffer.c @ 31874

Last change on this file since 31874 was 31874, checked in by brainslayer, 3 months ago

update php

File size: 2.8 KB
Line 
1/*
2  +----------------------------------------------------------------------+
3  | PHP Version 7                                                        |
4  +----------------------------------------------------------------------+
5  | Copyright (c) 2006-2017 The PHP Group                                |
6  +----------------------------------------------------------------------+
7  | This source file is subject to version 3.01 of the PHP license,      |
8  | that is bundled with this package in the file LICENSE, and is        |
9  | available through the world-wide-web at the following url:           |
10  | http://www.php.net/license/3_01.txt                                  |
11  | If you did not receive a copy of the PHP license and are unable to   |
12  | obtain it through the world-wide-web, please send a note to          |
13  | license@php.net so we can mail you a copy immediately.               |
14  +----------------------------------------------------------------------+
15  | Authors: Andrey Hristov <andrey@php.net>                             |
16  |          Ulf Wendel <uw@php.net>                                     |
17  +----------------------------------------------------------------------+
18*/
19
20#include "php.h"
21#include "mysqlnd.h"
22#include "mysqlnd_debug.h"
23#include "mysqlnd_read_buffer.h"
24
25
26/* {{{ mysqlnd_read_buffer_is_empty */
27static zend_bool
28mysqlnd_read_buffer_is_empty(const MYSQLND_READ_BUFFER * const buffer)
29{
30        return buffer->len? FALSE:TRUE;
31}
32/* }}} */
33
34
35/* {{{ mysqlnd_read_buffer_read */
36static void
37mysqlnd_read_buffer_read(MYSQLND_READ_BUFFER * buffer, const size_t count, zend_uchar * dest)
38{
39        if (buffer->len >= count) {
40                memcpy(dest, buffer->data + buffer->offset, count);
41                buffer->offset += count;
42                buffer->len -= count;
43        }
44}
45/* }}} */
46
47
48/* {{{ mysqlnd_read_buffer_bytes_left */
49static size_t
50mysqlnd_read_buffer_bytes_left(const MYSQLND_READ_BUFFER * const buffer)
51{
52        return buffer->len;
53}
54/* }}} */
55
56
57/* {{{ mysqlnd_read_buffer_free */
58static void
59mysqlnd_read_buffer_free(MYSQLND_READ_BUFFER ** buffer)
60{
61        DBG_ENTER("mysqlnd_read_buffer_free");
62        if (*buffer) {
63                mnd_efree((*buffer)->data);
64                mnd_efree(*buffer);
65                *buffer = NULL;
66        }
67        DBG_VOID_RETURN;
68}
69/* }}} */
70
71
72/* {{{ mysqlnd_create_read_buffer */
73PHPAPI MYSQLND_READ_BUFFER *
74mysqlnd_create_read_buffer(const size_t count)
75{
76        MYSQLND_READ_BUFFER * ret = mnd_emalloc(sizeof(MYSQLND_READ_BUFFER));
77        DBG_ENTER("mysqlnd_create_read_buffer");
78        ret->is_empty = mysqlnd_read_buffer_is_empty;
79        ret->read = mysqlnd_read_buffer_read;
80        ret->bytes_left = mysqlnd_read_buffer_bytes_left;
81        ret->free_buffer = mysqlnd_read_buffer_free;
82        ret->data = mnd_emalloc(count);
83        ret->size = ret->len = count;
84        ret->offset = 0;
85        DBG_RETURN(ret);
86}
87/* }}} */
88
89/*
90 * Local variables:
91 * tab-width: 4
92 * c-basic-offset: 4
93 * End:
94 * vim600: noet sw=4 ts=4 fdm=marker
95 * vim<600: noet sw=4 ts=4
96 */
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