-rw-r--r-- | libopie2/opiecore/ofilenotify.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/libopie2/opiecore/ofilenotify.h b/libopie2/opiecore/ofilenotify.h index bd2f9d0..d820f7c 100644 --- a/libopie2/opiecore/ofilenotify.h +++ b/libopie2/opiecore/ofilenotify.h @@ -71,96 +71,97 @@ enum OFileNotificationType { Single = 0x0000000, Create = DN_CREATE, Delete = DN_DELETE, Rename = DN_RENAME, Attrib = DN_ATTRIB }; /*====================================================================================== * OFileNotification *======================================================================================*/ /** * @brief Represents a file notification * * This class allows to watch for events happening to files. * It uses the dnotify kernel interface which is a very efficient signalling interface. * * @see <file:///usr/src/linux/Documentation/dnotify.txt> * * @author Michael 'Mickey' Lauer <mickey@vanille.de> * **/ class OFileNotification : public QObject { Q_OBJECT public: OFileNotification( QObject* parent = 0, const char* name = 0 ); ~OFileNotification(); /** * This static function calls a slot when an event with @a type happens to file @a path. * * It is very convenient to use this function because you do not need to * bother with a timerEvent or to create a local QTimer object. * * Example: * <pre> * * #include <opie2/oapplication.h> * #include <opie2/onitify.h> * using namespace Opie::Core; * * int main( int argc, char **argv ) * { * OApplication a( argc, argv, "File Notification Example" ); * OFileNotification::singleShot( "/tmp/quit", &a, SLOT(quit()), Create ); * ... // create and show your widgets * return a.exec(); * } + * </pre> * * This sample program automatically terminates when the file "/tmp/quite" has been created. * * * The @a receiver is the receiving object and the @a member is the slot. **/ static void singleShot( const QString& path, QObject* receiver, const char* member, OFileNotificationType type = Modify ); /** * Starts to watch for @a type changes to @a path. Set @a sshot to True if you want to be notified only once. * Note that in that case it may be more convenient to use @ref OFileNotification::singleShot() then. **/ int start( const QString& path, bool sshot = false, OFileNotificationType type = Modify ); /** * Stop watching for file events. **/ void stop(); /** * @returns the notification type as set by @ref start(). **/ OFileNotificationType type() const; /** * @returns the path to the file being watched by this instance. **/ QString path() const; /** * @returns the UNIX file descriptor for the file being watched. **/ int fileno() const; /** * @returns if a file is currently being watched. **/ bool isActive() const; signals: /** * This signal is emitted if an event happens of the specified type happens to the file being watched. **/ void triggered(); protected: bool activate(); virtual bool hasChanged(); static bool registerSignalHandler(); static void unregisterSignalHandler(); static void __signalHandler( int sig, siginfo_t *si, void *data ); private: QString _path; |