libmysqlclientlibrary by using the-lmysqlclientflag,mysql_library_end()performs some memory management to clean up. For an embedded server application linked against thelibmysqldlibrary by using the-lmysqldflag,mysql_library_end()shuts down the embedded server and then cleans up. explicitly. This enables memory managment to be...
5.4.44 mysql_library_end() voidmysql_library_end(void) Description This function finalizes the MySQL client library. Call it when you are done using the library (for example, after disconnecting from the server). Note To avoid memory leaks after the application is done using the library (for...
通过调用 mysql_library_init() 初始化 MySQL 客户端库。 通过调用 mysql_init() 初始化连接处理程序并连接到服务器通过调用连接建立函数,例如mysql_real_connect()。 发出SQL 语句并处理其结果。有关如何执行此操作的详细信息 通过调用 mysql_close() 关闭与 MySQL 服务器的连接。 通过调用 mysql_library_end()...
mysql_library_end(void) Notes Call this function when you finish using the library, for example, after disconnecting from the server. To avoid memory leaks, you must callmysql_library_end()explicitly so that memory management is performed to clear and release the resources occupied by the librar...
mysql_library_end(); return 0; } 上面的代码用valgrind检测内存泄漏输出如下: cobbliu@ubuntu:~/dev/test$ gcc -o mysql mysql.c -lmysqlclient cobbliu@ubuntu:~/dev/test$ valgrind --leak-check=full --show-reachable=yes ./mysql ==4497== Memcheck, a memory error detector ==4497== Copyright...
mysql_library_end(); 示例代码 以mysql_test.c 文件为例,代码如下: #include"mysql.h"#include<stdio.h>#include<stdlib.h>intmain(intargc,char** argv){ mysql_library_init(0,NULL,NULL); MYSQL *mysql = mysql_init(NULL);char* host_name ="xxx.xxx.xxx.xxx";//set your mysql hostchar* us...
mysql_close(mysql); 调用mysql_library_end()结束LibOBClient 的使用。 mysql_library_end(); 示例代码 以mysql_test.c 文件为例,代码如下: #include "mysql.h" #include <stdio.h> #include <stdlib.h> int main(int argc, char** argv) { mysql_library_init(0, NULL, NULL); MYSQL *mysql = ...
This enables memory managment to be performed to clean up and free resources used by the library. See Section 5.4.44, “mysql_library_end()”. In a nonmultithreaded environment, the call to mysql_library_init() may be omitted, because mysql_init() invokes it automatically as necessary. ...
在非多线程的情况下,mysql_init()会根据需要自动调用mysql_library_init().但mysql_library_init()是非线程安全的,因此mysql_init()也是非线程安全的。在调用mysql_init()之前,要么在生成任何线程之前调用mysql_library_init()要么使用互斥锁来保护mysql_library_init()的调用。这应该在客户端调用客户端库之前完成。
mysql_get_host_info() mysql_get_proto_info() mysql_get_server_info() mysql_get_server_version() mysql_get_ssl_cipher() mysql_hex_string() mysql_info() mysql_init() mysql_insert_id() mysql_kill() mysql_library_end() mysql_library_init() mysql_list_dbs() mysql_list_fields() mysql...