-rw-r--r-- | libopie2/opiecore/ofilenotify.cpp | 15 | ||||
-rw-r--r-- | libopie2/opiecore/ofilenotify.h | 10 |
2 files changed, 23 insertions, 2 deletions
diff --git a/libopie2/opiecore/ofilenotify.cpp b/libopie2/opiecore/ofilenotify.cpp index de4c63b..270570e 100644 --- a/libopie2/opiecore/ofilenotify.cpp +++ b/libopie2/opiecore/ofilenotify.cpp @@ -155,110 +155,123 @@ void OFileNotification::stop() 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; } bool OFileNotification::activate() { if ( hasChanged() ) { emit triggered(); _signal.activate(); return true; } else return false; } bool OFileNotification::hasChanged() { bool c = false; struct stat newstat; ::memset( &newstat, 0, sizeof newstat ); - ::stat( _path, &newstat ); + int result = ::stat( _path, &newstat ); // may fail if file has been renamed or deleted. that doesn't matter :) + qDebug( "result of newstat call is %d (%s=%d)", result, strerror( errno ), errno ); qDebug( "stat.atime = %0lx, newstat.atime = %0lx", (long)_stat.st_atime, (long)newstat.st_atime ); qDebug( "stat.mtime = %0lx, newstat.mtime = %0lx", (long)_stat.st_mtime, (long)newstat.st_mtime ); + qDebug( "stat.ctime = %0lx, newstat.ctime = %0lx", (long)_stat.st_ctime, (long)newstat.st_ctime ); + + if ( !c && (_type & (Delete|Rename)) && (long)newstat.st_atime == 0 && (long)newstat.st_mtime == 0 && (long)newstat.st_ctime == 0) + { + qDebug( "OFileNotification::hasChanged(): file has been deleted or renamed" ); + c = true; + } if ( !c && (_type & Access) && (long)_stat.st_atime < (long)newstat.st_atime ) { qDebug( "OFileNotification::hasChanged(): atime changed" ); c = true; } if ( !c && (_type & Modify) && (long)_stat.st_mtime < (long)newstat.st_mtime ) { qDebug( "OFileNotification::hasChanged(): mtime changed" ); c = true; } + if ( !c && (_type & Attrib) && (long)_stat.st_ctime < (long)newstat.st_ctime ) + { + qDebug( "OFileNotification::hasChanged(): ctime changed" ); + c = true; + } return c; } 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 ) { // check if it really was the file (dnotify triggers on directory granularity, not file granularity) if ( !fn->activate() ) { qDebug( "OFileNotification::__signalHandler(): false alarm ;) Restarting the trigger (if it was single)..." ); if ( !(fn->type() & Multi ) ) { int result = ::fcntl( fn->fileno(), F_NOTIFY, fn->type() ); if ( result == -1 ) { qWarning( "OFileNotification::__signalHandler(): Can't restart the trigger: %s.", strerror( errno ) ); } } return; } #if 1 if ( !(fn->type() & Multi) ) { qDebug( "OFileNotification::__signalHandler(): '%d' was singleShot. Removing from list.", fd ); notification_list.remove( fd ); if ( notification_list.isEmpty() ) { OFileNotification::unregisterSignalHandler(); } } #endif } else { diff --git a/libopie2/opiecore/ofilenotify.h b/libopie2/opiecore/ofilenotify.h index 5315896..13b5a6b 100644 --- a/libopie2/opiecore/ofilenotify.h +++ b/libopie2/opiecore/ofilenotify.h @@ -31,67 +31,75 @@ _;:, .> :=|. This program is free software; you can #if defined (__GNUC__) && (__GNUC__ < 3) #define _GNU_SOURCE #endif /* QT */ #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 OFileNotification : public QObject { Q_OBJECT public: 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: bool activate(); - bool hasChanged(); + virtual bool hasChanged(); static bool registerSignalHandler(); static void unregisterSignalHandler(); static void __signalHandler( int sig, siginfo_t *si, void *data ); private: QString _path; OFileNotificationType _type; QSignal _signal; int _fd; bool _active; struct stat _stat; }; + +class ODirectoryNotification : public OFileNotification +{ + public: + virtual bool hasChanged() { return true; }; +}; + + } } #endif |