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DBHomework/mysql_include/mysql/service_mysql_alloc.h

82 lines
2.7 KiB
C

/* Copyright (c) 2012, 2015, Oracle and/or its affiliates. All rights reserved.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; version 2 of the License.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA */
#ifndef MYSQL_SERVICE_MYSQL_ALLOC_INCLUDED
#define MYSQL_SERVICE_MYSQL_ALLOC_INCLUDED
#ifndef MYSQL_ABI_CHECK
#include <stdlib.h>
#endif
/* PSI_memory_key */
#include "mysql/psi/psi_memory.h"
#ifdef __cplusplus
extern "C" {
#endif
/* myf */
typedef int myf_t;
typedef void * (*mysql_malloc_t)(PSI_memory_key key, size_t size, myf_t flags);
typedef void * (*mysql_realloc_t)(PSI_memory_key key, void *ptr, size_t size, myf_t flags);
typedef void (*mysql_claim_t)(void *ptr);
typedef void (*mysql_free_t)(void *ptr);
typedef void * (*my_memdup_t)(PSI_memory_key key, const void *from, size_t length, myf_t flags);
typedef char * (*my_strdup_t)(PSI_memory_key key, const char *from, myf_t flags);
typedef char * (*my_strndup_t)(PSI_memory_key key, const char *from, size_t length, myf_t flags);
struct mysql_malloc_service_st
{
mysql_malloc_t mysql_malloc;
mysql_realloc_t mysql_realloc;
mysql_claim_t mysql_claim;
mysql_free_t mysql_free;
my_memdup_t my_memdup;
my_strdup_t my_strdup;
my_strndup_t my_strndup;
};
extern struct mysql_malloc_service_st *mysql_malloc_service;
#ifdef MYSQL_DYNAMIC_PLUGIN
#define my_malloc mysql_malloc_service->mysql_malloc
#define my_realloc mysql_malloc_service->mysql_realloc
#define my_claim mysql_malloc_service->mysql_claim
#define my_free mysql_malloc_service->mysql_free
#define my_memdup mysql_malloc_service->my_memdup
#define my_strdup mysql_malloc_service->my_strdup
#define my_strndup mysql_malloc_service->my_strndup
#else
extern void * my_malloc(PSI_memory_key key, size_t size, myf_t flags);
extern void * my_realloc(PSI_memory_key key, void *ptr, size_t size, myf_t flags);
extern void my_claim(void *ptr);
extern void my_free(void *ptr);
extern void * my_memdup(PSI_memory_key key, const void *from, size_t length, myf_t flags);
extern char * my_strdup(PSI_memory_key key, const char *from, myf_t flags);
extern char * my_strndup(PSI_memory_key key, const char *from, size_t length, myf_t flags);
#endif
#ifdef __cplusplus
}
#endif
#endif