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-rw-r--r--libopie2/examples/opiecore/onotifydemo/onotifydemo.cpp43
-rw-r--r--libopie2/opiecore/ofilenotify.cpp160
-rw-r--r--libopie2/opiecore/ofilenotify.h36
3 files changed, 176 insertions, 63 deletions
diff --git a/libopie2/examples/opiecore/onotifydemo/onotifydemo.cpp b/libopie2/examples/opiecore/onotifydemo/onotifydemo.cpp
index a8a5717..74a8158 100644
--- a/libopie2/examples/opiecore/onotifydemo/onotifydemo.cpp
+++ b/libopie2/examples/opiecore/onotifydemo/onotifydemo.cpp
@@ -1,119 +1,144 @@
/* OPIE */
#include <opie2/odebug.h>
#include <opie2/oapplication.h>
#include <opie2/ofiledialog.h>
#include <opie2/olistview.h>
#include <opie2/ofilenotify.h>
using namespace Opie::Core;
using namespace Opie::Ui;
/* QT */
+#include <qcheckbox.h>
#include <qvbox.h>
#include <qhbox.h>
#include <qhbuttongroup.h>
#include <qvbuttongroup.h>
+#include <qmessagebox.h>
#include <qpushbutton.h>
-#include <qcheckbox.h>
class DemoApp : public OApplication
{
Q_OBJECT
public:
DemoApp( int argc, char** argv ) : OApplication( argc, argv, "libopie2 notify demo" )
{
QVBox* vbox = new QVBox();
setMainWidget( vbox );
l = new OListView( vbox );
l->addColumn( "Notification Path" );
- l->addColumn( "Trigger" );
+ l->addColumn( "Trigger Type" );
+ l->addColumn( "Trigger Mask" );
+ l->setColumnAlignment( 1, AlignCenter );
+ l->setColumnAlignment( 2, AlignCenter );
QHBox* hbox = new QHBox( vbox );
g2 = new QVButtonGroup( "Specify Trigger Type", hbox );
//QCheckBox* c1 = new QCheckBox( "Multi", g2 );
QCheckBox* c2 = new QCheckBox( "Access", g2 );
QCheckBox* c3 = new QCheckBox( "Modify", g2 );
QCheckBox* c4 = new QCheckBox( "Create", g2 );
QCheckBox* c5 = new QCheckBox( "Delete", g2 );
QCheckBox* c6 = new QCheckBox( "Rename", g2 );
QCheckBox* c7 = new QCheckBox( "Attrib", g2 );
g2->insert( c2, Access );
g2->insert( c3, Modify );
g2->insert( c4, Create );
g2->insert( c5, Delete );
g2->insert( c6, Rename );
g2->insert( c7, Attrib );
+ connect( g2, SIGNAL( pressed(int) ), this, SLOT( modifierClicked(int) ) );
g1 = new QVButtonGroup( "Add/Remove", hbox );
QPushButton* plus1 = new QPushButton( "Add\n&Single", g1 );
QPushButton* plus2 = new QPushButton( "Add\n&Multi", g1 );
QPushButton* minus = new QPushButton( "&Remove\nIt!", g1 );
g1->insert( plus1, 0 );
g1->insert( plus2, 1 );
g1->insert( minus, 2 );
connect( plus1, SIGNAL( clicked() ), this, SLOT( addSingle() ) );
connect( plus2, SIGNAL( clicked() ), this, SLOT( addMulti() ) );
connect( minus, SIGNAL( clicked() ), this, SLOT( delTrigger() ) );
g1->show();
g2->show();
l->show();
hbox->show();
vbox->show();
showMainWidget( vbox );
}
public:
void addTrigger( bool multi = false )
{
+ if ( !m )
+ {
+ QMessageBox::warning( 0, "Add Trigger", "<p>Can't add trigger without at least one selected trigger type</p>", "&Sorry", 0 );
+ return;
+ }
+
QString filename = OFileDialog::getOpenFileName( OFileSelector::ExtendedAll );
if ( !filename.isEmpty() )
{
odebug << "Filename = " << filename << oendl;
- new OListViewItem( l, filename, "Modify" );
-
+ int fntype = m;
+ if ( multi ) fntype |=(int) Multi;
- OFileNotifier::singleShot( filename, this, SLOT( trigger() ) );
+ QString modifier = QString().sprintf( " = 0x%08x", fntype );
+ new OListViewItem( l, filename, multi ? "MULTI" : "SINGLE", modifier );
+ if ( !multi )
+ OFileNotification::singleShot( filename, this, SLOT( trigger() ), (OFileNotificationType) fntype );
+ else
+ OFileNotification::singleShot( filename, this, SLOT( trigger() ), (OFileNotificationType) fntype );
}
else
{
odebug << "cancelled." << oendl;
}
}
public slots:
-
+ void modifierClicked( int modifier ) { (int)m ^= modifier; };
void addSingle() { addTrigger(); };
void addMulti() { addTrigger( true ); };
void delTrigger()
{
- QString filename( "bla" );
- odebug << "Filename = " << filename << oendl;
+ QListViewItem* item = l->selectedItem();
+ if ( !item )
+ {
+ QMessageBox::warning( 0, "Del Trigger", "<p>No trigger selected!</p>", "&Sorry", 0 );
+ return;
+ }
+ else
+ {
+ QString filename( item->text( 0 ) );
+ odebug << "Filename = " << filename << oendl;
+ }
}
void trigger()
{
owarn << "FIRE!" << oendl;
}
private:
OListView* l;
QButtonGroup* g1;
QButtonGroup* g2;
- int m;
+ OFileNotificationType m;
};
int main( int argc, char** argv )
{
DemoApp* app = new DemoApp( argc, argv );
app->exec();
return 0;
}
#include "moc/onotifydemo.moc"
diff --git a/libopie2/opiecore/ofilenotify.cpp b/libopie2/opiecore/ofilenotify.cpp
index 2242570..5e9f97b 100644
--- a/libopie2/opiecore/ofilenotify.cpp
+++ b/libopie2/opiecore/ofilenotify.cpp
@@ -23,137 +23,205 @@ _;:,     .>    :=|. This program is free software; you can
  --        :-=` this library; see the file COPYING.LIB.
If not, write to the Free Software Foundation,
Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA.
*/
#include "ofilenotify.h"
using namespace Opie::Core;
/* OPIE */
/* QT */
+#include <qobject.h>
#include <qsignal.h>
#include <qintdict.h>
#include <qdir.h>
/* STD */
#include <sys/types.h>
#include <sys/stat.h>
-#include <fcntl.h>
+#ifndef _GNU_SOURCE
+ #define _GNU_SOURCE
+ #include <fcntl.h>
+ #undef _GNU_SOURCE
+#else
+ #include <fcntl.h>
+#endif
#include <string.h>
#include <errno.h>
+#include <unistd.h>
+
+static QIntDict<OFileNotification> notification_list;
namespace Opie {
namespace Core {
-class OFileNotification
+OFileNotification::OFileNotification( QObject* parent, const char* name )
+ :QObject( parent, name ), _active( false )
{
- public:
- OFileNotification( QObject* receiver, const char* member, OFileNotificationType type ) : _type( type )
- {
- _signal.connect( receiver, member );
- }
- ~OFileNotification()
- {
- }
-
- void activate()
- {
- _signal.activate();
- }
+ qDebug( "OFileNotification::OFileNotification()" );
+}
- OFileNotificationType type()
- {
- return _type;
- }
- private:
- OFileNotificationType _type;
- QSignal _signal;
-};
+OFileNotification::~OFileNotification()
+{
+ qDebug( "OFileNotification::~OFileNotification()" );
+}
-static QIntDict<OFileNotification> notification_list;
+bool OFileNotification::isActive() const
+{
+ return _active;
+}
-void OFileNotifier::singleShot( const QString& path, QObject* receiver, const char* member, OFileNotificationType type )
+int OFileNotification::start( const QString& path, bool sshot, OFileNotificationType type )
{
+ _path = QString::null;
+ _fd = 0;
+ if ( _active ) stop();
+
int fd = ::open( (const char*) path, O_RDONLY );
if ( fd != -1 )
{
if ( notification_list.isEmpty() )
{
- OFileNotifier::registerSignalHandler();
+ OFileNotification::registerSignalHandler();
}
int result = ::fcntl( fd, F_SETSIG, SIGRTMIN );
if ( result == -1 )
{
- qWarning( "OFileNotifier::singleShot(): Can't subscribe to '%s': %s.", (const char*) path, strerror( errno ) );
- return;
+ qWarning( "OFileNotification::start(): Can't subscribe to '%s': %s.", (const char*) path, strerror( errno ) );
+ return -1;
}
+ if ( !sshot ) (int) type |= (int) Multi;
result = ::fcntl( fd, F_NOTIFY, type );
if ( result == -1 )
{
- qWarning( "OFileNotifier::singleShot(): Can't subscribe to '%s': %s.", (const char*) path, strerror( errno ) );
- return;
+ qWarning( "OFileNotification::start(): Can't subscribe to '%s': %s.", (const char*) path, strerror( errno ) );
+ return -1;
}
- qDebug( "OFileNotifier::singleShot(): Subscribed for changes to %s (fd = %d)", (const char*) path, fd );
- notification_list.insert( fd, new OFileNotification( receiver, member, type ) );
+ qDebug( "OFileNotification::start(): Subscribed for changes to %s (fd = %d, mask = 0x%0x)", (const char*) path, fd, type );
+ notification_list.insert( fd, this );
+ _type = type;
+ _path = path;
+ _fd = fd;
+ return fd;
}
else
{
- qWarning( "OFileNotifier::singleShot(): Error with path '%s': %s.", (const char*) path, strerror( errno ) );
+ qWarning( "OFileNotification::start(): Error with path '%s': %s.", (const char*) path, strerror( errno ) );
+ return -1;
}
}
-void OFileNotifier::__signalHandler( int sig, siginfo_t *si, void *data )
+void OFileNotification::stop()
{
- qWarning( "OFileNotifier::__signalHandler(): reached." );
+ if ( !_active ) return;
+
+ int result = ::fcntl( _fd, F_NOTIFY, 0 );
+ if ( result == -1 )
+ {
+ qWarning( "OFileNotification::stop(): Can't remove subscription to '%s': %s.", (const char*) _path, strerror( errno ) );
+ }
+ else
+ {
+ ::close( _fd );
+ _type = Single;
+ _path = QString::null;
+ _fd = 0;
+ _active = false;
+ }
+}
+
+
+OFileNotificationType OFileNotification::type() const
+{
+ return _type;
+}
+
+
+QString OFileNotification::path() const
+{
+ return _path;
+}
+
+int OFileNotification::fileno() const
+{
+ return _fd;
+}
+
+void OFileNotification::activate()
+{
+ emit triggered();
+ _signal.activate();
+}
+
+
+void OFileNotification::singleShot( const QString& path, QObject* receiver, const char* member, OFileNotificationType type )
+{
+ OFileNotification* ofn = new OFileNotification();
+ ofn->_signal.connect( receiver, member );
+ ofn->start( path, true, type );
+}
+
+
+void OFileNotification::__signalHandler( int sig, siginfo_t *si, void *data )
+{
+ qWarning( "OFileNotification::__signalHandler(): reached." );
int fd = si->si_fd;
OFileNotification* fn = notification_list[fd];
if ( fn )
{
fn->activate();
#if 1
if ( !(fn->type() & Multi) )
{
- qDebug( "OFileNotifier::__signalHandler(): '%d' was singleShot. Removing from list.", fd );
+ qDebug( "OFileNotification::__signalHandler(): '%d' was singleShot. Removing from list.", fd );
notification_list.remove( fd );
if ( notification_list.isEmpty() )
{
- OFileNotifier::unregisterSignalHandler();
+ OFileNotification::unregisterSignalHandler();
}
}
#endif
}
else
{
- qWarning( "OFileNotifier::__signalHandler(): D'oh! Called without fd in notification_list. Race condition?" );
+ qWarning( "OFileNotification::__signalHandler(): D'oh! Called without fd in notification_list. Race condition?" );
}
}
-void OFileNotifier::registerSignalHandler()
+bool OFileNotification::registerSignalHandler()
{
struct sigaction act;
- act.sa_sigaction = OFileNotifier::__signalHandler;
+ act.sa_sigaction = OFileNotification::__signalHandler;
::sigemptyset( &act.sa_mask );
act.sa_flags = SA_SIGINFO;
- ::sigaction( SIGRTMIN, &act, NULL );
- qDebug( "OFileNotifier::registerSignalHandler(): done" );
+ if ( ::sigaction( SIGRTMIN, &act, NULL ) == -1 )
+ {
+ qWarning( "OFileNotification::registerSignalHandler(): couldn't register signal handler: %s", strerror( errno ) );
+ return false;
+ }
+ qDebug( "OFileNotification::registerSignalHandler(): done" );
}
-void OFileNotifier::unregisterSignalHandler()
+void OFileNotification::unregisterSignalHandler()
{
struct sigaction act;
act.sa_sigaction = ( void (*)(int, siginfo_t*, void*) ) SIG_DFL;
- sigemptyset( &act.sa_mask );
- ::sigaction( SIGRTMIN, &act, NULL );
- qDebug( "OFileNotifier::unregisterSignalHandler(): done" );
+ ::sigemptyset( &act.sa_mask );
+ if ( ::sigaction( SIGRTMIN, &act, NULL ) == -1 )
+ if ( ::sigaction( SIGRTMIN, &act, NULL ) == -1 )
+ {
+ qWarning( "OFileNotification::unregisterSignalHandler(): couldn't deregister signal handler: %s", strerror( errno ) );
+ }
+ qDebug( "OFileNotification::unregisterSignalHandler(): done" );
}
}
}
diff --git a/libopie2/opiecore/ofilenotify.h b/libopie2/opiecore/ofilenotify.h
index 638eb6c..a14842a 100644
--- a/libopie2/opiecore/ofilenotify.h
+++ b/libopie2/opiecore/ofilenotify.h
@@ -21,52 +21,72 @@ _;:,     .>    :=|. This program is free software; you can
-.   .:....=;==+<; You should have received a copy of the GNU
-_. . .   )=.  = Library General Public License along with
  --        :-=` this library; see the file COPYING.LIB.
If not, write to the Free Software Foundation,
Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA.
*/
#ifndef OFILENOTIFY_H
#define OFILENOTIFY_H
/* QT */
-#include <qstring.h>
#include <qobject.h>
+#include <qsignal.h>
+#include <qstring.h>
/* STD */
#include <signal.h>
#include <fcntl.h>
namespace Opie {
namespace Core {
enum OFileNotificationType { Single = 0x0000000,
Multi = DN_MULTISHOT,
Access = DN_ACCESS,
Modify = DN_MODIFY,
Create = DN_CREATE,
Delete = DN_DELETE,
Rename = DN_RENAME,
Attrib = DN_ATTRIB };
-class OFileNotifier : public QObject
+class OFileNotification : public QObject
{
+ Q_OBJECT
+
public:
- static void singleShot( const QString& path,
- QObject *receiver, const char *member,
- OFileNotificationType type = Modify );
+ OFileNotification( QObject* parent = 0, const char* name = 0 );
+ ~OFileNotification();
+
+ static void singleShot( const QString& path, QObject* receiver, const char* member, OFileNotificationType type = Modify );
+
+ int start( const QString& path, bool sshot = false, OFileNotificationType type = Modify );
+ void stop();
+
+ OFileNotificationType type() const;
+ QString path() const;
+ int fileno() const;
+ bool isActive() const;
+
+ signals:
+ void triggered();
+
protected:
- static void registerSignalHandler();
+ void activate();
+ static bool registerSignalHandler();
static void unregisterSignalHandler();
static void __signalHandler( int sig, siginfo_t *si, void *data );
private:
- OFileNotifier();
- ~OFileNotifier();
+ QString _path;
+ OFileNotificationType _type;
+ QSignal _signal;
+ int _fd;
+ bool _active;
};
}
}
#endif