| -rw-r--r-- | libopie2/opiecore/ofilenotify.cpp | 95 | ||||
| -rw-r--r-- | libopie2/opiecore/ofilenotify.h | 42 |
2 files changed, 104 insertions, 33 deletions
diff --git a/libopie2/opiecore/ofilenotify.cpp b/libopie2/opiecore/ofilenotify.cpp index c221e58..efd041a 100644 --- a/libopie2/opiecore/ofilenotify.cpp +++ b/libopie2/opiecore/ofilenotify.cpp @@ -80,38 +80,50 @@ bool OFileNotification::isActive() const int OFileNotification::watch( const QString& path, bool sshot, OFileNotificationType type ) { - if ( QFile::exists( path ) ) + // check if path exists and is a regular file + struct stat s; + if ( ::stat( (const char*) path, &s ) == -1 ) { - if ( notification_list.isEmpty() ) - { - OFileNotification::registerEventHandler(); - } - - struct inotify_watch_request iwr; - ::memset( &iwr, 0, sizeof iwr ); - iwr.name = const_cast<char*>( (const char*) path ); - iwr.mask = type; - - _wd = ::ioctl( OFileNotification::_fd, INOTIFY_WATCH, &iwr ); - - if ( _wd < 0 ) - { - qWarning( "OFileNotification::watch(): inotify can't watch '%s': %s.", (const char*) path, strerror( errno ) ); - return -1; - } - - notification_list.insert( _wd, this ); - _multi = !sshot; - _type = type; - _active = true; - qDebug( "OFileNotification::watch(): watching '%s' [wd=%d].", (const char*) path, _wd ); - return _wd; + qWarning( "OFileNotification::watch(): Can't watch '%s': %s.", (const char*) path, strerror( errno ) ); + return -1; } - else + if ( !S_ISREG( s.st_mode ) ) { - qWarning( "OFileNotification::watch(): Can't watch '%s': %s.", (const char*) path, strerror( errno ) ); + qWarning( "OFileNotification::watch(): Can't watch '%s': %s.", (const char*) path, "not a regular file" ); + return -1; + } + + if ( notification_list.isEmpty() ) + { + OFileNotification::registerEventHandler(); + } + + return startWatching( path, sshot, type ); +} + + +int OFileNotification::startWatching( const QString& path, bool sshot, OFileNotificationType type ) +{ + struct inotify_watch_request iwr; + ::memset( &iwr, 0, sizeof iwr ); + iwr.name = const_cast<char*>( (const char*) path ); + iwr.mask = type; + + _wd = ::ioctl( OFileNotification::_fd, INOTIFY_WATCH, &iwr ); + + if ( _wd < 0 ) + { + qWarning( "OFileNotification::watch(): inotify can't watch '%s': %s.", (const char*) path, strerror( errno ) ); return -1; } + + notification_list.insert( _wd, this ); + _path = path; + _multi = !sshot; + _type = type; + _active = true; + qDebug( "OFileNotification::watch(): watching '%s' [wd=%d].", (const char*) path, _wd ); + return _wd; } @@ -142,18 +154,18 @@ QString OFileNotification::path() const bool OFileNotification::activate() { - emit triggered(); + emit triggered( _path ); _signal.activate(); if ( !_multi ) stop(); return true; } -void OFileNotification::singleShot( const QString& path, QObject* receiver, const char* member, OFileNotificationType type ) +bool OFileNotification::singleShot( const QString& path, QObject* receiver, const char* member, OFileNotificationType type ) { OFileNotification* ofn = new OFileNotification(); ofn->_signal.connect( receiver, member ); - ofn->watch( path, true, type ); + return ofn->watch( path, true, type ) != -1; } @@ -218,11 +230,34 @@ bool OFileNotification::registerEventHandler() void OFileNotification::unregisterEventHandler() { + if ( _sn ) delete _sn; if ( OFileNotification::_fd ) ::close( OFileNotification::_fd ); qDebug( "OFileNotification::unregisterEventHandler(): done" ); } +//================================================================================================= +// ODirNotification +//================================================================================================= +ODirNotification::ODirNotification( QObject* parent, const char* name ) + :QObject( parent, name ) +{ + qDebug( "ODirNotification::ODirNotification()" ); +} + +ODirNotification::~ODirNotification() +{ + qDebug( "ODirNotification::~ODirNotification()" ); } + + +int ODirNotification::watch( const QString& path, bool sshot, OFileNotificationType type, int recurse ) +{ + qDebug( "ODirNotification::watch( %s, %d, 0x%08x, %d )", (const char*) path, sshot, type, recurse ); + return 0; } + +} + +}
\ No newline at end of file diff --git a/libopie2/opiecore/ofilenotify.h b/libopie2/opiecore/ofilenotify.h index ea525e9..41ba84d 100644 --- a/libopie2/opiecore/ofilenotify.h +++ b/libopie2/opiecore/ofilenotify.h @@ -98,7 +98,7 @@ enum OFileNotificationType * @brief Represents a file notification * * This class allows to watch for events happening to files. - * It uses the inotify kernel interface + * It uses the inotify linux (2.6.x) kernel interface. * * @see http://www.kernel.org/pub/linux/kernel/people/rml/inotify/ * @@ -140,7 +140,7 @@ class OFileNotification : public QObject * * 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 ); + static bool 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. @@ -162,12 +162,16 @@ class OFileNotification : public QObject * @returns if a file is currently being watched. **/ bool isActive() const; + /** + * @internal + */ + int startWatching( const QString& path, bool sshot = false, OFileNotificationType type = Modify ); signals: /** * This signal is emitted if an event happens of the specified type happens to the file being watched. **/ - void triggered(); + void triggered( const QString& name ); protected: bool activate(); @@ -189,6 +193,38 @@ class OFileNotification : public QObject static int _fd; // inotify device descriptor }; +/*====================================================================================== + * ODirNotification + *======================================================================================*/ + +/** + * @brief Represents a directory notification + * + * This class allows to watch for events happening to directories + * It uses the OFileNotification class + * + * @see http://www.kernel.org/pub/linux/kernel/people/rml/inotify/ + * + * @author Michael 'Mickey' Lauer <mickey@vanille.de> + * + **/ + +class ODirNotification : public QObject +{ + Q_OBJECT + + public: + ODirNotification( QObject* parent = 0, const char* name = 0 ); + ~ODirNotification(); + /** + * Starts to watch for @a type changes to @a path. Recurse @a recurse levels down the filesystem tree, + * use 0 for no recursion and -1 for unlimited recursion. + * Set @a sshot to True if you want to be notified only once. + **/ + int watch( const QString& path, bool sshot = false, OFileNotificationType type = Modify, int recurse = 0 ); +}; + + } } |