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-rw-r--r--libopie2/opiecore/ofilenotify.cpp95
-rw-r--r--libopie2/opiecore/ofilenotify.h42
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
@@ -71,56 +71,68 @@ OFileNotification::~OFileNotification()
qDebug( "OFileNotification::~OFileNotification()" );
}
bool OFileNotification::isActive() const
{
return _active;
}
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;
}
void OFileNotification::stop()
{
notification_list.remove( _wd );
_path = QString::null;
_wd = 0;
_active = false;
if ( notification_list.isEmpty() )
{
OFileNotification::unregisterEventHandler();
@@ -133,36 +145,36 @@ OFileNotificationType OFileNotification::type() const
return _type;
}
QString OFileNotification::path() const
{
return _path;
}
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;
}
void OFileNotification::inotifyEventHandler()
{
qWarning( "OFileNotification::__eventHandler(): reached." );
char buffer[16384];
size_t buffer_i;
struct inotify_event *pevent, *event;
ssize_t r;
size_t event_size;
@@ -209,20 +221,43 @@ bool OFileNotification::registerEventHandler()
}
OFileNotification::_sn = new QSocketNotifier( _fd, QSocketNotifier::Read, this, "inotify event" );
connect( OFileNotification::_sn, SIGNAL( activated(int) ), this, SLOT( inotifyEventHandler() ) );
qDebug( "OFileNotification::registerEventHandler(): done" );
return true;
}
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
@@ -89,25 +89,25 @@ enum OFileNotificationType
_QueueOverflow = IN_Q_OVERFLOW, /* Internal, don't use this in client code */
_Ignored = IN_IGNORED, /* Internal, don't use this in client code */
};
/*======================================================================================
* OFileNotification
*======================================================================================*/
/**
* @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/
*
* @author Michael 'Mickey' Lauer <mickey@vanille.de>
*
**/
class OFileNotification : public QObject
{
Q_OBJECT
public:
@@ -131,66 +131,102 @@ class OFileNotification : public QObject
* 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/quit" 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 );
+ 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.
**/
int watch( 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 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();
private slots:
void inotifyEventHandler();
private:
bool registerEventHandler();
void unregisterEventHandler();
QString _path;
OFileNotificationType _type;
QSignal _signal;
bool _active;
bool _multi;
static QSocketNotifier* _sn;
int _wd; // inotify watch descriptor
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 );
+};
+
+
}
}
#endif