本文整理汇总了C++中QSqlDriver::subscribeToNotification方法的典型用法代码示例。如果您正苦于以下问题：C++ QSqlDriver::subscribeToNotification方法的具体用法？C++ QSqlDriver::subscribeToNotification怎么用？C++ QSqlDriver::subscribeToNotification使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类QSqlDriver的用法示例。
在下文中一共展示了QSqlDriver::subscribeToNotification方法的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: main
//.........这里部分代码省略.........
if (fuse_parse_cmdline(&fuse_arguments, &mount_point, NULL, NULL) == -1) {
qfError() << "fuse_parse_cmdline() - Error parsing fuse command line arguments!";
exit(1);
}
/// Tell FUSE where the local mountpoint is
fuse_channel = fuse_mount(mount_point, &fuse_arguments);
if (fuse_channel == NULL){
qfError()<<"fuse_mount() failed";
exit(1);
}
// Tell FUSE about implementations of FS operations
struct fuse_operations fuse_ops;
memset(&fuse_ops, 0, sizeof(fuse_ops));
fuse_ops.getattr = qfsqldbfs_getattr;
fuse_ops.readdir = qfsqldbfs_readdir;
fuse_ops.open = qfsqldbfs_open;
fuse_ops.read = qfsqldbfs_read;
fuse_ops.write = qfsqldbfs_write;
fuse_ops.fsync = qfsqldbfs_fsync;
fuse_ops.flush = qfsqldbfs_flush;
fuse_ops.release = qfsqldbfs_release;
fuse_ops.mknod = qfsqldbfs_mknod;
fuse_ops.mkdir = qfsqldbfs_mkdir;
fuse_ops.unlink = qfsqldbfs_unlink;
fuse_ops.rmdir = qfsqldbfs_rmdir;
fuse_ops.utime = qfsqldbfs_utime;
fuse_ops.truncate = qfsqldbfs_truncate;
fuse_ops.ftruncate = qfsqldbfs_ftruncate;
fuse_ops.chmod = qfsqldbfs_chmod;
fuse_ops.chown = qfsqldbfs_chown;
fuse_ops.create = qfsqldbfs_create;
fuse_ops.rename = qfsqldbfs_rename;
fuse_handle = fuse_new(fuse_channel, &fuse_arguments, &fuse_ops, sizeof(fuse_ops), NULL);
if (fuse_handle == NULL){
qfError()<<"fuse_new() failed";
exit(1);
}
if(dbfs_drv) {
#ifdef USE_QT_EVENT_LOOP
qfInfo() << "Using Qt event loop with FUSE in separated thread";
TheApp *app = new TheApp(argc, argv);
s_fuseThread = new FuseThread(fuse_handle, fuse_channel, QString::fromUtf8(mount_point));
dbfs_drv->moveToThread(s_fuseThread);
QObject::connect(s_fuseThread, &QThread::finished, app, &TheApp::onFuseThreadFinished, Qt::QueuedConnection);
s_fuseThread->start();
set_signal_handlers();
{
/// setup SQL notify
QSqlDatabase notify_db = QSqlDatabase::addDatabase("QPSQL", "DBFS_Notify");
notify_db.setHostName(db_connection.hostName());
notify_db.setPort(db_connection.port());
notify_db.setUserName(db_connection.userName());
notify_db.setPassword(db_connection.password());
notify_db.setDatabaseName(db_connection.databaseName());
bool ok = notify_db.open();
if(!ok) {
qfError() << "Error connect DBFS notify connection" << notify_db.lastError().text();
}
else {
QSqlDriver *drv = notify_db.driver();
//qRegisterMetaType<QSqlDriver::NotificationSource>("QSqlDriver::NotificationSource");
QObject::connect(drv, SIGNAL(notification(QString,QSqlDriver::NotificationSource,QVariant)), dbfs_drv, SLOT(onSqlNotify(QString,QSqlDriver::NotificationSource,QVariant)), Qt::DirectConnection);
//QObject::connect(drv, SIGNAL(notification(QString,QSqlDriver::NotificationSource,QVariant)), app, SLOT(onSqlNotify(QString,QSqlDriver::NotificationSource,QVariant)));
drv->subscribeToNotification(qfs::DbFsDriver::CHANNEL_INVALIDATE_DBFS_DRIVER_CACHE);
qfInfo() << drv << "subscribedToNotifications:" << drv->subscribedToNotifications().join(", ");
}
}
app->exec();
qfInfo() << "Waiting for FUSE thread to join ...";
s_fuseThread->wait();
#else
qfInfo() << "Using FUSE event loop";
fuse_loop(fuse_handle);
qfInfo() << "FUSE has quit its event loop";
#endif
qfsqldbfs_setdriver(nullptr);
QF_SAFE_DELETE(dbfs_drv);
#ifdef USE_QT_EVENT_LOOP
QF_SAFE_DELETE(s_fuseThread);
QF_SAFE_DELETE(app);
#endif
}
else {
// used just to print FUSE help
fuse_loop(fuse_handle);
}
qfInfo() << "bye";
return 0;
}