mysqlnd_alloc.h

Go to the documentation of this file.

/*
  +----------------------------------------------------------------------+
  | Copyright (c) The PHP Group                                          |
  +----------------------------------------------------------------------+
  | This source file is subject to version 3.01 of the PHP license,      |
  | that is bundled with this package in the file LICENSE, and is        |
  | available through the world-wide-web at the following url:           |
  | https://www.php.net/license/3_01.txt                                 |
  | If you did not receive a copy of the PHP license and are unable to   |
  | obtain it through the world-wide-web, please send a note to          |
  | license@php.net so we can mail you a copy immediately.               |
  +----------------------------------------------------------------------+
  | Authors: Andrey Hristov <andrey@php.net>                             |
  |          Ulf Wendel <uw@php.net>                                     |
  +----------------------------------------------------------------------+
*/
 
#ifndef MYSQLND_ALLOC_H
#define MYSQLND_ALLOC_H
 
PHPAPI extern const char * mysqlnd_debug_std_no_trace_funcs[];
 
#define MYSQLND_MEM_D   ZEND_FILE_LINE_DC
#define MYSQLND_MEM_C   ZEND_FILE_LINE_CC
 
struct st_mysqlnd_allocator_methods
{
    void *  (*m_emalloc)(size_t size MYSQLND_MEM_D);
    void *  (*m_pemalloc)(size_t size, bool persistent MYSQLND_MEM_D);
    void *  (*m_ecalloc)(unsigned int nmemb, size_t size MYSQLND_MEM_D);
    void *  (*m_pecalloc)(unsigned int nmemb, size_t size, bool persistent MYSQLND_MEM_D);
    void *  (*m_erealloc)(void *ptr, size_t new_size MYSQLND_MEM_D);
    void *  (*m_perealloc)(void *ptr, size_t new_size, bool persistent MYSQLND_MEM_D);
    void    (*m_efree)(void *ptr MYSQLND_MEM_D);
    void    (*m_pefree)(void *ptr, bool persistent MYSQLND_MEM_D);
    char *  (*m_pememdup)(const char * const ptr, size_t size, bool persistent MYSQLND_MEM_D);
    char *  (*m_pestrndup)(const char * const ptr, size_t size, bool persistent MYSQLND_MEM_D);
    char *  (*m_pestrdup)(const char * const ptr, bool persistent MYSQLND_MEM_D);
};
 
PHPAPI extern struct st_mysqlnd_allocator_methods mysqlnd_allocator;
 
#define mnd_emalloc(size)               mysqlnd_allocator.m_emalloc((size) MYSQLND_MEM_C)
#define mnd_pemalloc(size, pers)        mysqlnd_allocator.m_pemalloc((size), (pers) MYSQLND_MEM_C)
#define mnd_ecalloc(nmemb, size)        mysqlnd_allocator.m_ecalloc((nmemb), (size) MYSQLND_MEM_C)
#define mnd_pecalloc(nmemb, size, p)    mysqlnd_allocator.m_pecalloc((nmemb), (size), (p) MYSQLND_MEM_C)
#define mnd_erealloc(ptr, new_size)     mysqlnd_allocator.m_erealloc((ptr), (new_size) MYSQLND_MEM_C)
#define mnd_perealloc(ptr, new_size, p) mysqlnd_allocator.m_perealloc((ptr), (new_size), (p) MYSQLND_MEM_C)
#define mnd_efree(ptr)                  mysqlnd_allocator.m_efree((ptr) MYSQLND_MEM_C)
#define mnd_pefree(ptr, pers)           mysqlnd_allocator.m_pefree((ptr), (pers) MYSQLND_MEM_C)
#define mnd_pememdup(ptr, size, pers)   mysqlnd_allocator.m_pememdup((ptr), (size), (pers) MYSQLND_MEM_C)
#define mnd_pestrndup(ptr, size, pers)  mysqlnd_allocator.m_pestrndup((ptr), (size), (pers) MYSQLND_MEM_C)
#define mnd_pestrdup(ptr, pers)         mysqlnd_allocator.m_pestrdup((ptr), (pers) MYSQLND_MEM_C)
#define mnd_sprintf(p, mx_len, fmt,...) spprintf((p), (mx_len), (fmt), __VA_ARGS__)
#define mnd_vsprintf(p, mx_len, fmt,ap) vspprintf((p), (mx_len), (fmt), (ap))
#define mnd_sprintf_free(p)             efree((p))
 
static inline MYSQLND_STRING mnd_dup_cstring(const MYSQLND_CSTRING str, const bool persistent)
{
    const MYSQLND_STRING ret = {(char*) mnd_pemalloc(str.l + 1, persistent), str.l};
    if (ret.s) {
        memcpy(ret.s, str.s, str.l);
        ret.s[str.l] = '\0';
    }
    return ret;
}
 
static inline MYSQLND_CSTRING mnd_str2c(const MYSQLND_STRING str)
{
    const MYSQLND_CSTRING ret = {str.s, str.l};
    return ret;
}
 
static inline void mysqlnd_set_string(MYSQLND_STRING *buf, const char *string, size_t len) {
    if (buf->s) {
        mnd_efree(buf->s);
        buf->s = NULL;
        buf->l = 0;
    }
    if (string) {
        buf->s = mnd_pestrndup(string, len, 0);
        buf->l = len;
    }
}
 
static inline void mysqlnd_set_persistent_string(MYSQLND_STRING *buf, const char *string, size_t len, bool persistent) {
    if (buf->s) {
        mnd_pefree(buf->s, persistent);
        buf->s = NULL;
        buf->l = 0;
    }
    if (string) {
        buf->s = mnd_pestrndup(string, len, persistent);
        buf->l = len;
    }
}
 
#endif /* MYSQLND_ALLOC_H */