| -rw-r--r-- | examples/opiecore/onotifydemo/onotifydemo.cpp | 48 | ||||
| -rw-r--r-- | examples/opiecore/onotifydemo/onotifydemo.h | 3 | ||||
| -rw-r--r-- | libopie2/opiecore/ofilenotify.cpp | 31 | ||||
| -rw-r--r-- | libopie2/opiecore/ofilenotify.h | 10 |
4 files changed, 76 insertions, 16 deletions
diff --git a/examples/opiecore/onotifydemo/onotifydemo.cpp b/examples/opiecore/onotifydemo/onotifydemo.cpp index 0e84d80..2beda2a 100644 --- a/examples/opiecore/onotifydemo/onotifydemo.cpp +++ b/examples/opiecore/onotifydemo/onotifydemo.cpp @@ -1,140 +1,178 @@ #include "onotifydemo.h" /* 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 <qfileinfo.h> #include <qvbox.h> #include <qhbox.h> #include <qhbuttongroup.h> #include <qvbuttongroup.h> #include <qmessagebox.h> #include <qpushbutton.h> DemoApp::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 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( "Access", g2 ); QCheckBox* c2 = new QCheckBox( "Modify", g2 ); QCheckBox* c3 = new QCheckBox( "Attrib", g2 ); QCheckBox* c4 = new QCheckBox( "CloseWrite", g2 ); QCheckBox* c5 = new QCheckBox( "CloseNoWrite", g2 ); QCheckBox* c6 = new QCheckBox( "MovedFrom", g2 ); QCheckBox* c7 = new QCheckBox( "MovedTo", g2 ); QCheckBox* c8 = new QCheckBox( "DeleteSubdir", g2 ); QCheckBox* c9 = new QCheckBox( "DeleteFile", g2 ); QCheckBox* c10 = new QCheckBox( "CreateSubdir", g2 ); QCheckBox* c11 = new QCheckBox( "CreateFile", g2 ); QCheckBox* c12 = new QCheckBox( "Unmount", g2 ); g2->insert( c1, Access ); g2->insert( c2, Modify ); g2->insert( c3, Attrib ); g2->insert( c4, CloseWrite ); g2->insert( c5, CloseNoWrite ); g2->insert( c6, MovedFrom ); g2->insert( c7, MovedTo ); g2->insert( c8, DeleteSubdir ); g2->insert( c9, DeleteFile ); g2->insert( c10, CreateSubdir ); g2->insert( c11, CreateFile ); g2->insert( c12, Unmount ); 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 ); } void DemoApp::addTrigger( bool multi ) { 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() ) { + bool success = true; odebug << "Filename = " << filename << oendl; int fntype = m; QString modifier = QString().sprintf( " = 0x%08x", fntype ); - new OListViewItem( l, filename, multi ? "MULTI" : "SINGLE", modifier ); + + if ( QFileInfo( filename ).isFile() ) + { if ( !multi ) - OFileNotification::singleShot( filename, this, SLOT( trigger() ), (OFileNotificationType) fntype ); + { + success = OFileNotification::singleShot( filename, this, SLOT( unnamedTrigger() ), (OFileNotificationType) fntype ); + } else - odebug << "not yet implemented..." << oendl; + { + OFileNotification* fn = new OFileNotification(); + success = fn->watch( filename, false, (OFileNotificationType) fntype ); + connect( fn, SIGNAL( triggered( const QString& ) ), this, SLOT( namedTrigger( const QString& ) ) ); + } + } + else if ( QFileInfo( filename ).isDir() ) + { + ODirNotification* dn = new ODirNotification(); + success = dn->watch( filename, !multi, (OFileNotificationType) fntype ); + connect( dn, SIGNAL( triggered( const QString& ) ), this, SLOT( namedTrigger( const QString& ) ) ); + } + else + { + odebug << "Huh!? Neither file nor directory..." << oendl; + return; + } + +/* if ( !success ) + { + QMessageBox::warning( 0, "Add Trigger", "<p>Couldn't add trigger :(</p>", "&Sorry", 0 ); + return; + } + else +*/ { + new OListViewItem( l, filename, multi ? "MULTI" : "SINGLE", modifier ); + } + return; } else { odebug << "cancelled." << oendl; } } void DemoApp::modifierClicked( int modifier ) { m = static_cast<OFileNotificationType>( (int)m ^ int(modifier) ); }; void DemoApp::addSingle() { addTrigger(); }; void DemoApp::addMulti() { addTrigger( true ); }; void DemoApp::delTrigger() { 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 DemoApp::trigger() + void DemoApp::unnamedTrigger() + { + owarn << "DemoApp::singleShotStrigger() : F I R E !!!!!" << oendl; + } + + void DemoApp::namedTrigger( const QString& path ) { - owarn << "FIRE!" << oendl; + owarn << "DemoApp::named trigger = " << path << " : F I R E !!!!!" << oendl; } int main( int argc, char** argv ) { DemoApp* app = new DemoApp( argc, argv ); app->exec(); return 0; } diff --git a/examples/opiecore/onotifydemo/onotifydemo.h b/examples/opiecore/onotifydemo/onotifydemo.h index c4e3456..f6ac5ea 100644 --- a/examples/opiecore/onotifydemo/onotifydemo.h +++ b/examples/opiecore/onotifydemo/onotifydemo.h @@ -1,29 +1,30 @@ /* OPIE */ #include <opie2/olistview.h> #include <opie2/odebug.h> #include <opie2/oapplication.h> #include <opie2/ofilenotify.h> class QButtonGroup; class DemoApp : public Opie::Core::OApplication { Q_OBJECT public: DemoApp( int argc, char** argv ); public: void addTrigger( bool multi = false ); public slots: void modifierClicked( int modifier ); void addSingle(); void addMulti(); void delTrigger(); - void trigger(); + void unnamedTrigger(); + void namedTrigger( const QString& name ); private: Opie::Ui::OListView* l; QButtonGroup* g1; QButtonGroup* g2; Opie::Core::OFileNotificationType m; }; diff --git a/libopie2/opiecore/ofilenotify.cpp b/libopie2/opiecore/ofilenotify.cpp index efd041a..11d4f87 100644 --- a/libopie2/opiecore/ofilenotify.cpp +++ b/libopie2/opiecore/ofilenotify.cpp @@ -1,263 +1,278 @@ /* This file is part of the Opie Project =. Copyright (C) 2004-2005 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; version 2 of the License. ._= =} : .%`+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 <qobject.h> #include <qsocketnotifier.h> #include <qsignal.h> #include <qintdict.h> #include <qdir.h> /* STD */ #include <sys/types.h> #include <sys/stat.h> #include <sys/ioctl.h> #include <fcntl.h> #include <assert.h> #include <string.h> #include <errno.h> #include <unistd.h> static QIntDict<OFileNotification> notification_list; QSocketNotifier* OFileNotification::_sn; int OFileNotification::_fd = -1; #define INOTIFY_DEVICE "/dev/inotify" namespace Opie { namespace Core { OFileNotification::OFileNotification( QObject* parent, const char* name ) :QObject( parent, name ), _active( false ), _multi( true ) { qDebug( "OFileNotification::OFileNotification()" ); } OFileNotification::~OFileNotification() { stop(); qDebug( "OFileNotification::~OFileNotification()" ); } bool OFileNotification::isActive() const { return _active; } int OFileNotification::watch( const QString& path, bool sshot, OFileNotificationType type ) { // check if path exists and is a regular file struct stat s; if ( ::stat( (const char*) path, &s ) == -1 ) { qWarning( "OFileNotification::watch(): Can't watch '%s': %s.", (const char*) path, strerror( errno ) ); return -1; } if ( !S_ISREG( s.st_mode ) ) { 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 ) { + 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 ); _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(); } } OFileNotificationType OFileNotification::type() const { return _type; } QString OFileNotification::path() const { return _path; } bool OFileNotification::activate() { emit triggered( _path ); _signal.activate(); if ( !_multi ) stop(); return true; } bool OFileNotification::singleShot( const QString& path, QObject* receiver, const char* member, OFileNotificationType type ) { OFileNotification* ofn = new OFileNotification(); ofn->_signal.connect( receiver, member ); 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; int count = 0; r = ::read(_fd, buffer, 16384); if ( r <= 0 ) return; buffer_i = 0; while ( buffer_i < r ) { /* Parse events and queue them ! */ pevent = (struct inotify_event *)&buffer[buffer_i]; event_size = sizeof(struct inotify_event) + pevent->len; qDebug( "pevent->len = %d\n", pevent->len); OFileNotification* fn = notification_list[ pevent->wd ]; if ( fn ) fn->activate(); else assert( false ); //event = malloc(event_size); //memmove(event, pevent, event_size); //queue_enqueue(event, q); buffer_i += event_size; count++; } qDebug( "received %d events...", count ); return; } bool OFileNotification::registerEventHandler() { OFileNotification::_fd = ::open( INOTIFY_DEVICE, O_RDONLY ); if ( OFileNotification::_fd < 0 ) { qWarning( "OFileNotification::registerEventHandler(): couldn't register event handler: %s", strerror( errno ) ); return false; } 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; -} + if ( recurse == 0 ) + { + OFileNotification* fn = new OFileNotification( this, "ODirNotification delegate" ); + int result = fn->startWatching( path, sshot, type ); + if ( result != -1 ) + { + connect( fn, SIGNAL( triggered( const QString& ) ), this, SIGNAL( triggered( const QString& ) ) ); + return result; + } + } + else + { + qDebug( "ODirNotification::watch(), recursion not yet implemented... :)" ); + return -1; } - }
\ No newline at end of file + +} // namespace Ui + +} // namespace Opie diff --git a/libopie2/opiecore/ofilenotify.h b/libopie2/opiecore/ofilenotify.h index 41ba84d..3eb917e 100644 --- a/libopie2/opiecore/ofilenotify.h +++ b/libopie2/opiecore/ofilenotify.h @@ -36,197 +36,203 @@ _;:, .> :=|. This program is free software; you can /* QT */ #include <qsocketnotifier.h> #include <qsignal.h> #include <qstring.h> namespace Opie { namespace Core { /*====================================================================================== * OFileNotificationType *======================================================================================*/ /** * @brief An enumerate for the different types of file notifications * * This enumerate provides a means to specify the type of events that you are interest in. * Valid values are: * <ul> * <li>Access: The file was accessed (read) * <li>Modify The file was modified (write,truncate) * <li>Attrib = The file had its attributes changed (chmod,chown,chgrp) * <li>CloseWrite = Writable file was closed * <li>CloseNoWrite = Unwritable file was closed * <li>Open = File was opened * <li>MovedFrom = File was moved from X * <li>MovedTo = File was moved to Y * <li>DeleteSubdir = Subdir was deleted * <li>DeleteFile = Subfile was deleted * <li>CreateSubdir = Subdir was created * <li>CreateFile = Subfile was created * <li>DeleteSelf = Self was deleted * <li>Unmount = The backing filesystem was unmounted * </ul> * **/ enum OFileNotificationType { Access = IN_ACCESS, Modify = IN_MODIFY, Attrib = IN_ATTRIB, CloseWrite = IN_CLOSE_WRITE, CloseNoWrite = IN_CLOSE_NOWRITE, Open = IN_OPEN, MovedFrom = IN_MOVED_FROM, MovedTo = IN_MOVED_TO, DeleteSubdir = IN_DELETE_SUBDIR, DeleteFile = IN_DELETE_FILE, CreateSubdir = IN_CREATE_SUBDIR, CreateFile = IN_CREATE_FILE, DeleteSelf = IN_DELETE_SELF, Unmount = IN_UNMOUNT, _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 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: 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/ofilenotify.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 ); + * OFileNotification::singleShot( "/tmp/quit", &a, SLOT(quit()), Access ); * ... // create and show your widgets * return a.exec(); * } * </pre> * - * This sample program automatically terminates when the file "/tmp/quit" has been created. + * This sample program automatically terminates when the file "/tmp/quit" has been accessed. * * * The @a receiver is the receiving object and the @a member is the slot. **/ 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( 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 ); + + signals: + /** + * This signal is emitted if an event happens of the specified type happens to the directory being watched. + **/ + void triggered( const QString& name ); }; } } #endif |