bool DBMysql::connectToDB()
{
if (0 != mysql_library_init(0, NULL, NULL))
{
qDebug() << "MySQL init failed.";
return false;
}
// set charset
if (0 != mysql_options(&m_dbHandler, MYSQL_SET_CHARSET_NAME, "utf8"))
{
qDebug() << "Set charset failed.";
return false;
}
if (NULL == mysql_real_connect( &m_dbHandler,
m_host.toStdString().data(),
m_user.toStdString().data(),
m_pwd.toStdString().data(),
m_dbName.toStdString().data(),
m_port,
NULL,
0 ))
{
qDebug() << "Connect to mysql failed:" << mysql_error(&m_dbHandler);
return false;
}
mysql_query(&m_dbHandler, "SET NAMES UTF8;");
return true;
}
CDatabase::CDatabase()
{
m_uCounter = 0;
mysql_library_init(0,NULL,NULL);
CDatabase::Inst() = this;
}
int
main (int argc, char *argv[])
{
MY_INIT (argv[0]);
/* initialize client library */
if (mysql_library_init (0, NULL, NULL))
{
fprintf (stderr, "mysql_library_init() failed\n");
exit (1);
}
/* initialize connection handler */
conn = mysql_init (NULL);
if (conn == NULL)
{
fprintf (stderr, "mysql_init() failed (probably out of memory)\n");
exit (1);
}
/* connect to server */
if (mysql_real_connect (conn, opt_host_name, opt_user_name, opt_password,
opt_db_name, opt_port_num, opt_socket_name, opt_flags) == NULL)
{
fprintf (stderr, "mysql_real_connect() failed\n");
mysql_close (conn);
exit (1);
}
/* disconnect from server, terminate client library */
mysql_close (conn);
mysql_library_end ();
exit (0);
}
/* server sampling process */
void local_process(int total_samples) {
static MYSQL* conn;
if(mysql_library_init(0, NULL, NULL)) {
fprintf(stderr, "mysql_library_init() failed\n");
exit(EXIT_FAILURE);
}
conn = mysql_init(NULL);
if(conn == NULL) {
fprintf(stderr, "mysql_init() failed\n");
exit(EXIT_FAILURE);
}
if(mysql_real_connect(conn, my_host_name, my_user_name, my_password, my_db_name, my_port_num, my_socket_name, my_flags) == NULL) {
fprintf(stderr, "mysql_real_connect() failed:\n%s\n", mysql_error(conn));
mysql_close(conn);
exit(EXIT_FAILURE);
}
if(mysql_query(conn, "use prototype")) {
fprintf(stderr, "use database failed: \n%s\n", mysql_error(conn));
exit(EXIT_FAILURE);
}
// execute the outer routine
prepare_and_exec_serverinsert(conn, total_samples);
mysql_close(conn);
mysql_library_end();
exit(EXIT_SUCCESS);
}
bool cMysqlDatabase::Open()
{
cMutexLock mutexLock(&mutex);
mysql = mysql_init(NULL);
if (!mysql)
return false;
mysql_library_init(0, NULL, NULL);
mysql_options (mysql, MYSQL_OPT_CONNECT_TIMEOUT, "5");
std::string databaseName;
std::string::size_type idx = path.find_last_of('/');
if (idx != std::string::npos)
databaseName = path.substr(idx+1);
else
databaseName = path;
// create the database
if (!noCreate && !CreateDatabase(databaseName))
return false;
MYSQL *m = mysql_real_connect (mysql, "127.0.0.1", "reeluser", "reeluser", databaseName.c_str(), 0, NULL, 0);
if (!m)
return false;
return true;
}
int CMySqlAccess::Init(int flag, const char *host, const char *uid,
const char *passwd, const char *database)
{
printf(">>> init begin\n");
m_iFlag = flag;
m_strHost = host;
m_strUid = uid;
m_strPasswd = passwd;
m_strDb = database;
m_res_ptr = NULL;
if (mysql_library_init(0, NULL, NULL))
{
printf("mysql_library_init return failed\n");
return -1;
}
if ((m_mysql = mysql_init(NULL)) == NULL)
{
printf("mysql_init return failed, errinfo = %s\n", mysql_error(m_mysql));
return -1;
}
if (mysql_real_connect(m_mysql, host, uid, passwd, database, 0, NULL, 0) == NULL)
{
printf("mysql_real_connect return failed, errinfo = %s\n", mysql_error(m_mysql));
mysql_close(m_mysql);
return -1;
}
printf(">>> init end\n");
return 0;
}
int CMySqlAccess::Reinit()
{
Uninit();
mysql_init(m_mysql);
m_res_ptr = NULL;
if (mysql_library_init(0, NULL, NULL))
{
printf("mysql_library_init return failed\n");
return -1;
}
if ((m_mysql = mysql_init(NULL)) == NULL)
{
printf("mysql_init return failed, errinfo = %s\n", mysql_error(m_mysql));
return -1;
}
MYSQL *connect = mysql_real_connect(m_mysql, m_strHost.c_str(),
m_strUid.c_str(), m_strPasswd.c_str(),
m_strDb.c_str(), 0, NULL, 0);
if (connect == NULL)
{
printf("%s\n", mysql_error(m_mysql));
mysql_close(m_mysql);
return -1;
}
// printf(">>> init end\n");
return 0;
}
void
MySQLLibrary::Init( const vector< string > & options )
{
int numOptions = static_cast< int >( options.size() );
if ( numOptions == 0 )
Init( );
else
{
vector< vector< char > > vvOptions( numOptions + 1 );
vector< char * > vpOptions( numOptions + 1 );
//The first "argument" is ignored
vvOptions[ 0 ].resize( 1, 0 );
vpOptions[ 0 ] = &(vvOptions[ 0 ][ 0 ]);
for ( int i = 0; i < numOptions; ++i )
{
vvOptions[ i + 1 ].resize( options[ i ].size() + 1, 0 );
vpOptions[ i + 1 ] = &(vvOptions[ i + 1 ][ 0 ]);
strcpy( vpOptions[ i + 1 ], options[ i ].c_str() );
}
int initRslt = mysql_library_init( numOptions, &vpOptions[0], 0 );
if ( initRslt != 0 )
{
string msg( "mysql_library_init returned " );
msg += IntToString( initRslt );
MySQLException exception( msg );
throw exception;
}
m_initialized = true;
}
}
static void
dblayer_mysql_initialize(void) {
if (mysql_library_init(0, NULL, NULL)) {
fprintf(stderr, "could not initialize MySQL library\n");
exit(1);
}
}
static GDALDataset *OGRMySQLDriverOpen( GDALOpenInfo* poOpenInfo )
{
OGRMySQLDataSource *poDS;
if( !EQUALN(poOpenInfo->pszFilename,"MYSQL:",6) )
return NULL;
{
CPLMutexHolderD(&hMutex);
if( !bInitialized )
{
if ( mysql_library_init( 0, NULL, NULL ) )
{
CPLError( CE_Failure, CPLE_AppDefined, "Could not initialize MySQL library" );
return NULL;
}
bInitialized = TRUE;
}
}
poDS = new OGRMySQLDataSource();
if( !poDS->Open( poOpenInfo->pszFilename, poOpenInfo->eAccess == GA_Update ) )
{
delete poDS;
return NULL;
}
else
return poDS;
}
void Init()
{
//初始化数据库
mysql_library_init(0, NULL, NULL);
//初始化数据结构
mysql_init(&mydata);
mysql_options(&mydata, MYSQL_SET_CHARSET_NAME, "gbk");
}
int main(int argc,char * argv [])
{
if (mysql_library_init(argc, argv, NULL))
return 0;
dump_file();
mysql_library_end();
return 0;
}
void Connector::registerConnector()
{
if (mysql_library_init(0, 0, 0) != 0)
{
throw Exception("mysql_library_init error");
}
Poco::Data::SessionFactory::instance().add(KEY, new Connector());
}
DllExport int call_conv driverMySQLEmbedded_lib_init()
{
int result;
result = mysql_library_init(0, NULL, (char **)server_groups);
if ( result==0 )
return TRUE;
else return FALSE;
}
int db_library_init()
{
if (mysql_library_init (0, NULL, NULL))
{
print_error (NULL, "mysql_library_init() failed");
return -1;
}
return 0;
}
void
sl_static_init_ext_mysql()
{
mysql_library_init(0, NULL, NULL);
cMySQL = sl_vm_store_register_slot();
cMySQL_Statement = sl_vm_store_register_slot();
cMySQL_Error = sl_vm_store_register_slot();
}
DatabaseWorkerPool::DatabaseWorkerPool() :
m_queue(new ACE_Activation_Queue(new ACE_Message_Queue<ACE_MT_SYNCH>)),
m_connections(0)
{
m_infoString = "";
mysql_library_init(-1, NULL, NULL);
WPFatal (mysql_thread_safe(), "Used MySQL library isn't thread-safe.");
}
int main()
{
AbsMsg* absmsg;
pthread_t tdatarecv, mysqllocal, mysqlcloud, timer; //数据获取、本地数据库存储、云数据库存储、数据库定时器线程
void* threadret;
pid_t pid;
int status;
while(1){
if((pid = fork()) > 0){
//主进程，守护进程
wait(&status); //阻塞，至子进程退出
continue;
}else{
//子进程，应用程序
//setsid();//创建新会话
printf(">>>>>>>>>>>>>>>START!>>>>>>>>>>>>>\n");
mysql_library_init(0, NULL, NULL); //mysql 多线程连接初始化
absmsg = (AbsMsg*)malloc(sizeof(AbsMsg));
absmsg->NQueue = (struct NodeNeiQueue*)malloc(sizeof(struct NodeNeiQueue));
absmsg->NQueue->head = 0;
absmsg->NQueue->tail = 0;
//互斥锁初始化
pthread_mutex_init(&absmsg->ecollock1, NULL);
pthread_mutex_init(&absmsg->ecollock2, NULL);
//串口数据获取线程
assert(pthread_create(&tdatarecv, NULL, tdatarecv_fn, absmsg) == 0);
//本地数据库存储线程
assert(pthread_create(&mysqllocal, NULL, mysqllocal_fn, absmsg) == 0);
//云端数据库存储线程,允许失败
pthread_create(&mysqlcloud, NULL, mysqlcloud_fn, absmsg);
//定时器线程
assert(pthread_create(&timer, NULL, timer_fn, NULL) == 0);
while(1){
//监控四个线程，有退出则重启
if(pthread_tryjoin_np(tdatarecv,NULL) == 0)
assert(pthread_create(&tdatarecv, NULL, tdatarecv_fn, absmsg) == 0);
if(pthread_tryjoin_np(mysqllocal,NULL) == 0)
assert(pthread_create(&mysqllocal, NULL, mysqllocal_fn, absmsg) == 0);
if(pthread_tryjoin_np(mysqlcloud,NULL) == 0)
pthread_create(&mysqlcloud, NULL, mysqlcloud_fn, absmsg);
if(pthread_tryjoin_np(timer,NULL) == 0)
assert(pthread_create(&timer, NULL, timer_fn, NULL) == 0);
sleep(1);
}
}
}
}
/*==============================================================================
------------------------------------------------------------------------------*/
bool db_init(
)
{
int ret = mysql_library_init(0, NULL, NULL);
if (ret)
LOG(LOG_ERR, "could not initialize mysql library");
return !ret;
}
int mysql_drv_init(void)
{
char *s;
args.hosts = sb_get_value_list("mysql-host");
if (SB_LIST_IS_EMPTY(args.hosts))
{
log_text(LOG_FATAL, "No MySQL hosts specified, aborting");
return 1;
}
hosts_pos = args.hosts;
pthread_mutex_init(&hosts_mutex, NULL);
args.port = sb_get_value_int("mysql-port");
args.socket = sb_get_value_string("mysql-socket");
args.user = sb_get_value_string("mysql-user");
args.password = sb_get_value_string("mysql-password");
args.db = sb_get_value_string("mysql-db");
args.myisam_max_rows = sb_get_value_int("myisam-max-rows");
args.use_ssl = sb_get_value_flag("mysql-ssl");
args.create_options = sb_get_value_string("mysql-create-options");
if (args.create_options == NULL)
args.create_options = "";
use_ps = 0;
#ifdef HAVE_PS
mysql_drv_caps.prepared_statements = 1;
if (db_globals.ps_mode != DB_PS_MODE_DISABLE)
use_ps = 1;
#endif
s = sb_get_value_string("mysql-engine-trx");
if (s == NULL)
{
log_text(LOG_FATAL, "--mysql-engine-trx requires an argument");
return 1;
}
if (!strcasecmp(s, "yes"))
args.engine_trx = ENGINE_TRX_YES;
else if (!strcasecmp(s, "no"))
args.engine_trx = ENGINE_TRX_NO;
else if (!strcasecmp(s, "auto"))
args.engine_trx = ENGINE_TRX_AUTO;
else
{
log_text(LOG_FATAL, "Invalid value for mysql-engine-trx: %s", s);
return 1;
}
s = sb_get_value_string("mysql-table-engine");
mysql_library_init(0, NULL, NULL);
return parse_table_engine(s);
}
int main (int argc, char** argv) {
mysql_library_init (argc, argv, NULL);
MYSQL *dbh = getDatabaseHandle("localhost", "round", "round", "round");
int numCategories;
Category *categories = getCategories(dbh, &numCategories);
for (int i = 0; i < numCategories; i++) {
printf("%d, %s, %s, %f\n",
categories[i].id, categories[i].name, categories[i].musicuri, categories[i].musicvolume);
}
return 0;
}
DatabaseMysql::DatabaseMysql()
{
// before first connection
if (db_count++ == 0)
{
// Mysql Library Init
mysql_library_init(-1, nullptr, nullptr);
if (!mysql_thread_safe())
poco_bugcheck_msg("FATAL ERROR: Used MySQL library isn't thread-safe.");
}
}
int main(int argc, char *argv[]) {
Server hss_server;
check_server_usage(argc, argv);
if(mysql_library_init(0, NULL, NULL))
cout << "ERROR: mysql library cannot be opened" << endl;
hss_server.begin_thread_pool(atoi(argv[1]), process_req);
hss_server.fill_server_details(g_hss_port, g_hss_addr);
hss_server.bind_server();
hss_server.listen_accept();
mysql_library_end();
return 0;
}
database::database() : db_shard_count(0)
{
try
{
if (mysql_library_init(0, 0, 0) != 0)
{
throw std::runtime_error("mysql_library_init failed");
}
}
catch (...)
{
throw;
}
}
int
realapp ()
{
#ifdef WITH_MYSQL
mysql_library_init(0, NULL, NULL);
#endif
os_mutex_init (&crypt_lock);
os_mutex_init (&getpwnam_lock);
os_mutex_init (&getspnam_lock);
os_mutex_init (&localtime_lock);
os_mutex_init (&writerpipe_lock);
#ifndef _WIN32_
reloadconfig (SIGHUP);
signal (SIGCHLD, kidkiller);
signal (SIGPIPE, ignorer);
signal (SIGQUIT, closeup);
signal (SIGINT, closeup);
#else
reloadconfig (0);
#endif
#ifndef _WIN32_
if (runAsDaemon)
daemonize ();
else if (log_filename) {
int fh = open (log_filename, O_CREAT|O_TRUNC|O_RDWR, 0666);
if (fh == -1) {
fprintf(stderr, "failed to open logfile %s:%s\n", log_filename, strerror(errno));
fh = open ("/dev/null", O_RDWR);
}
close (1);
close (2);
dup2 (fh, 1);
dup2 (fh, 2);
}
#endif
log_log (NULL, LOG_EVT_SERVERSTART, 0, conf);
while (TRUE) {
if (!HandleRequest ()) {
#ifdef WITH_DEBUG
DEBUG_LOG ("Couldn't handle request.");
#endif
}
}
#ifdef WITH_MYSQL
mysql_library_end();
#endif
return EXIT_SUCCESS;
}
void init(int argc, char const *serverArgs[], char const *serverGroups[], char const * dbName = 0, char const * user = 0, char const * password = 0) {
#ifndef NDEBUG
std::cerr << "mysql_library_init\n";
#endif
if (int ret = mysql_library_init(argc,
const_cast<char **>(serverArgs),
const_cast<char **>(serverGroups)))
{
std::cerr << "failed to initialise embedded mysql " << ret << std::endl;
return;
}
init(dbName, user, password);
}
DatabaseMysql::DatabaseMysql() : Database(), mMysql(0)
{
// before first connection
if (db_count++ == 0)
{
// Mysql Library Init
mysql_library_init(-1, NULL, NULL);
if (!mysql_thread_safe())
{
sLog.outError("FATAL ERROR: Used MySQL library isn't thread-safe.");
exit(1);
}
}
}
int main(int argc, char **argv)
{
mysql_library_init(0,0,NULL);
if (argc > 1)
get_options(argc, argv);
get_envvars();
run_tests(my_tests);
mysql_server_end();
return(exit_status());
}
void
MySQLLibrary::Init( )
{
if ( ! m_initialized )
{
int initRslt = mysql_library_init( 0, 0, 0 );
if ( initRslt != 0 )
{
string msg( "mysql_library_init returned " );
msg += IntToString( initRslt );
MySQLException exception( msg );
throw exception;
}
m_initialized = true;
}
}
DatabaseMysql::DatabaseMysql()
{
// before first connection
if (db_count++ == 0)
{
// Mysql Library Init
mysql_library_init(-1, nullptr, nullptr);
if (!mysql_thread_safe())
{
sLog.outError("FATAL ERROR: Used MySQL library isn't thread-safe.");
Log::WaitBeforeContinueIfNeed();
exit(1);
}
}
}