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authormickeyl <mickeyl>2004-04-16 18:09:45 (UTC)
committer mickeyl <mickeyl>2004-04-16 18:09:45 (UTC)
commit71b24a42daccd45fe80b2a669c3a88cfc5dcf608 (patch) (side-by-side diff)
tree073f505661af9e4a3c68383c1a10ff45e164047d /libopie2
parent746f8154b5b81621ee55d24c8ed2cbc05d402490 (diff)
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initial checkin of file and directory notifying classes
this is work in progress. don't look to close yet
Diffstat (limited to 'libopie2') (more/less context) (show whitespace changes)
-rw-r--r--libopie2/opiecore/ofilenotify.cpp159
-rw-r--r--libopie2/opiecore/ofilenotify.h72
-rw-r--r--libopie2/opiecore/opiecore.pro4
3 files changed, 234 insertions, 1 deletions
diff --git a/libopie2/opiecore/ofilenotify.cpp b/libopie2/opiecore/ofilenotify.cpp
new file mode 100644
index 0000000..2242570
--- a/dev/null
+++ b/libopie2/opiecore/ofilenotify.cpp
@@ -0,0 +1,159 @@
+/*
+                This file is part of the Opie Project
+ =. Copyright (C) 2004 Michael 'Mickey' Lauer <mickey@Vanille.de>
+ .=l. Copyright (C) The Opie Team <opie-devel@handhelds.org>
+          .>+-=
+_;:,     .>    :=|. This program is free software; you can
+.> <`_,   >  .   <= redistribute it and/or modify it under
+:`=1 )Y*s>-.--   : the terms of the GNU Library General Public
+.="- .-=="i,     .._ License as published by the Free Software
+- .   .-<_>     .<> Foundation; either version 2 of the License,
+    ._= =}       : or (at your option) any later version.
+   .%`+i>       _;_.
+   .i_,=:_.      -<s. This program is distributed in the hope that
+    +  .  -:.       = it will be useful, but WITHOUT ANY WARRANTY;
+   : ..    .:,     . . . without even the implied warranty of
+   =_        +     =;=|` MERCHANTABILITY or FITNESS FOR A
+ _.=:.       :    :=>`: PARTICULAR PURPOSE. See the GNU
+..}^=.=       =       ; Library General Public License for more
+++=   -.     .`     .: details.
+:     =  ...= . :.=-
+-.   .:....=;==+<; 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.
+*/
+
+#include "ofilenotify.h"
+using namespace Opie::Core;
+
+/* OPIE */
+
+/* QT */
+#include <qsignal.h>
+#include <qintdict.h>
+#include <qdir.h>
+
+/* STD */
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <string.h>
+#include <errno.h>
+
+namespace Opie {
+namespace Core {
+
+class OFileNotification
+{
+ public:
+ OFileNotification( QObject* receiver, const char* member, OFileNotificationType type ) : _type( type )
+ {
+ _signal.connect( receiver, member );
+ }
+ ~OFileNotification()
+ {
+ }
+
+ void activate()
+ {
+ _signal.activate();
+ }
+
+ OFileNotificationType type()
+ {
+ return _type;
+ }
+
+ private:
+ OFileNotificationType _type;
+ QSignal _signal;
+};
+
+
+static QIntDict<OFileNotification> notification_list;
+
+
+void OFileNotifier::singleShot( const QString& path, QObject* receiver, const char* member, OFileNotificationType type )
+{
+ int fd = ::open( (const char*) path, O_RDONLY );
+ if ( fd != -1 )
+ {
+ if ( notification_list.isEmpty() )
+ {
+ OFileNotifier::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;
+ }
+ result = ::fcntl( fd, F_NOTIFY, type );
+ if ( result == -1 )
+ {
+ qWarning( "OFileNotifier::singleShot(): Can't subscribe to '%s': %s.", (const char*) path, strerror( errno ) );
+ return;
+ }
+ qDebug( "OFileNotifier::singleShot(): Subscribed for changes to %s (fd = %d)", (const char*) path, fd );
+ notification_list.insert( fd, new OFileNotification( receiver, member, type ) );
+ }
+ else
+ {
+ qWarning( "OFileNotifier::singleShot(): Error with path '%s': %s.", (const char*) path, strerror( errno ) );
+ }
+}
+
+
+void OFileNotifier::__signalHandler( int sig, siginfo_t *si, void *data )
+{
+ qWarning( "OFileNotifier::__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 );
+ notification_list.remove( fd );
+ if ( notification_list.isEmpty() )
+ {
+ OFileNotifier::unregisterSignalHandler();
+ }
+ }
+ #endif
+ }
+ else
+ {
+ qWarning( "OFileNotifier::__signalHandler(): D'oh! Called without fd in notification_list. Race condition?" );
+ }
+}
+
+
+void OFileNotifier::registerSignalHandler()
+{
+ struct sigaction act;
+ act.sa_sigaction = OFileNotifier::__signalHandler;
+ ::sigemptyset( &act.sa_mask );
+ act.sa_flags = SA_SIGINFO;
+ ::sigaction( SIGRTMIN, &act, NULL );
+ qDebug( "OFileNotifier::registerSignalHandler(): done" );
+}
+
+
+void OFileNotifier::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" );
+}
+
+
+}
+}
diff --git a/libopie2/opiecore/ofilenotify.h b/libopie2/opiecore/ofilenotify.h
new file mode 100644
index 0000000..638eb6c
--- a/dev/null
+++ b/libopie2/opiecore/ofilenotify.h
@@ -0,0 +1,72 @@
+/*
+                This file is part of the Opie Project
+ =. Copyright (C) 2004 Michael 'Mickey' Lauer <mickey@Vanille.de>
+ .=l. Copyright (C) The Opie Team <opie-devel@handhelds.org>
+          .>+-=
+_;:,     .>    :=|. This program is free software; you can
+.> <`_,   >  .   <= redistribute it and/or modify it under
+:`=1 )Y*s>-.--   : the terms of the GNU Library General Public
+.="- .-=="i,     .._ License as published by the Free Software
+- .   .-<_>     .<> Foundation; either version 2 of the License,
+    ._= =}       : or (at your option) any later version.
+   .%`+i>       _;_.
+   .i_,=:_.      -<s. This program is distributed in the hope that
+    +  .  -:.       = it will be useful, but WITHOUT ANY WARRANTY;
+   : ..    .:,     . . . without even the implied warranty of
+   =_        +     =;=|` MERCHANTABILITY or FITNESS FOR A
+ _.=:.       :    :=>`: PARTICULAR PURPOSE. See the GNU
+..}^=.=       =       ; Library General Public License for more
+++=   -.     .`     .: details.
+:     =  ...= . :.=-
+-.   .:....=;==+<; 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>
+
+/* 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
+{
+ public:
+ static void singleShot( const QString& path,
+ QObject *receiver, const char *member,
+ OFileNotificationType type = Modify );
+ protected:
+ static void registerSignalHandler();
+ static void unregisterSignalHandler();
+ static void __signalHandler( int sig, siginfo_t *si, void *data );
+
+ private:
+ OFileNotifier();
+ ~OFileNotifier();
+};
+
+}
+}
+
+#endif
+
diff --git a/libopie2/opiecore/opiecore.pro b/libopie2/opiecore/opiecore.pro
index 171bb0c..ee42368 100644
--- a/libopie2/opiecore/opiecore.pro
+++ b/libopie2/opiecore/opiecore.pro
@@ -4,6 +4,7 @@ DESTDIR = $(OPIEDIR)/lib
HEADERS = oapplication.h \
oconfig.h \
odebug.h \
+ ofilenotify.h \
oglobal.h \
oglobalsettings.h \
okeyconfigmanager.h \
@@ -16,6 +17,7 @@ HEADERS = oapplication.h \
SOURCES = oapplication.cpp \
oconfig.cpp \
odebug.cpp \
+ ofilenotify.cpp \
oglobal.cpp \
oglobalsettings.cpp \
okeyconfigmanager.cpp \
@@ -28,7 +30,7 @@ include ( device/device.pro )
INTERFACES =
TARGET = opiecore2
-VERSION = 1.9.0
+VERSION = 1.9.1
INCLUDEPATH += $(OPIEDIR)/include
DEPENDPATH += $(OPIEDIR)/include