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-rw-r--r--libopie2/opiecore/ofilenotify.cpp15
-rw-r--r--libopie2/opiecore/ofilenotify.h10
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
@@ -171,78 +171,91 @@ OFileNotificationType OFileNotification::type() const
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 ) );
}
}
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
@@ -47,51 +47,59 @@ 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