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authorTimothy Pearson <kb9vqf@pearsoncomputing.net>2012-02-07 21:32:15 -0600
committerTimothy Pearson <kb9vqf@pearsoncomputing.net>2012-02-07 21:32:15 -0600
commit8d521d0b6ba88c6e679e7453f02897c8db7bbdf5 (patch)
tree9d54eeecde18c3a57c30eb7dbc93dd6e16679591 /kdesktop/lockeng.cc
parenteba2e1a1af6c0ae83b6104c0178c29b9bd8ac209 (diff)
downloadtdebase-8d521d0b6ba88c6e679e7453f02897c8db7bbdf5.tar.gz
tdebase-8d521d0b6ba88c6e679e7453f02897c8db7bbdf5.zip
Update lock process to engage the lock in near real time
Diffstat (limited to 'kdesktop/lockeng.cc')
-rw-r--r--kdesktop/lockeng.cc112
1 files changed, 85 insertions, 27 deletions
diff --git a/kdesktop/lockeng.cc b/kdesktop/lockeng.cc
index 5307c5c5e..79d27dbcb 100644
--- a/kdesktop/lockeng.cc
+++ b/kdesktop/lockeng.cc
@@ -1,8 +1,9 @@
//===========================================================================
//
-// This file is part of the KDE project
+// This file is part of the TDE project
//
// Copyright (c) 1999 Martin R. Jones <mjones@kde.org>
+// Copyright (c) 2012 Timothy Pearson <kb9vqf@pearsoncomputing.net>
//
@@ -29,6 +30,14 @@ extern xautolock_corner_t xautolock_corners[ 4 ];
bool trinity_lockeng_sak_available = TRUE;
+SaverEngine* m_masterSaverEngine = NULL;
+static void sigusr1_handler(int)
+{
+ if (m_masterSaverEngine) {
+ m_masterSaverEngine->lockProcessWaiting();
+ }
+}
+
//===========================================================================
//
// Screen saver engine. Doesn't handle the actual screensaver window,
@@ -42,6 +51,16 @@ SaverEngine::SaverEngine()
mSAKProcess(NULL),
mTerminationRequested(false)
{
+ struct sigaction act;
+
+ // handle SIGUSR1
+ m_masterSaverEngine = this;
+ act.sa_handler= sigusr1_handler;
+ sigemptyset(&(act.sa_mask));
+ sigaddset(&(act.sa_mask), SIGUSR1);
+ act.sa_flags = 0;
+ sigaction(SIGUSR1, &act, 0L);
+
// Save X screensaver parameters
XGetScreenSaver(qt_xdisplay(), &mXTimeout, &mXInterval,
&mXBlanking, &mXExposures);
@@ -60,6 +79,19 @@ SaverEngine::SaverEngine()
TQTimer::singleShot( 0, this, TQT_SLOT(handleSecureDialog()) );
configure();
+
+ mLockProcess.clearArguments();
+ TQString path = KStandardDirs::findExe( "kdesktop_lock" );
+ if( path.isEmpty())
+ {
+ kdDebug( 1204 ) << "Can't find kdesktop_lock!" << endl;
+ }
+ mLockProcess << path;
+ mLockProcess << TQString( "--internal" ) << TQString( "%1" ).arg(getpid());
+ if (mLockProcess.start() == false )
+ {
+ kdDebug( 1204 ) << "Failed to start kdesktop_lock!" << endl;
+ }
}
//---------------------------------------------------------------------------
@@ -68,6 +100,10 @@ SaverEngine::SaverEngine()
//
SaverEngine::~SaverEngine()
{
+ if (mState == Waiting) {
+ kill(mLockProcess.pid(), SIGKILL);
+ }
+
mLockProcess.detach(); // don't kill it if we crash
delete mXAutoLock;
@@ -86,9 +122,9 @@ void SaverEngine::lock()
{
mSAKProcess->kill(SIGTERM);
ok = startLockProcess( ForceLock );
-// It takes a while for kdesktop_lock to start and lock the screen.
-// Therefore delay the DCOP call until it tells kdesktop that the locking is in effect.
-// This is done only for --forcelock .
+ // It takes a while for kdesktop_lock to start and lock the screen.
+ // Therefore delay the DCOP call until it tells kdesktop that the locking is in effect.
+ // This is done only for --forcelock .
if( ok && mState != Saving )
{
DCOPClientTransaction* trans = kapp->dcopClient()->beginTransaction();
@@ -283,40 +319,42 @@ bool SaverEngine::startLockProcess( LockType lock_type )
kdDebug(1204) << "SaverEngine: starting saver" << endl;
emitDCOPSignal("KDE_start_screensaver()", TQByteArray());
- if (mLockProcess.isRunning())
- {
- stopLockProcess();
- }
- mLockProcess.clearArguments();
- TQString path = KStandardDirs::findExe( "kdesktop_lock" );
- if( path.isEmpty())
- {
- kdDebug( 1204 ) << "Can't find kdesktop_lock!" << endl;
- return false;
+ if (!mLockProcess.isRunning()) {
+ mLockProcess.clearArguments();
+ TQString path = KStandardDirs::findExe( "kdesktop_lock" );
+ if( path.isEmpty())
+ {
+ kdDebug( 1204 ) << "Can't find kdesktop_lock!" << endl;
+ return false;
+ }
+ mLockProcess << path;
+ mLockProcess << TQString( "--internal" ) << TQString( "%1" ).arg(getpid());
+ if (mLockProcess.start() == false )
+ {
+ kdDebug( 1204 ) << "Failed to start kdesktop_lock!" << endl;
+ return false;
+ }
}
- mLockProcess << path;
+
switch( lock_type )
{
case ForceLock:
- mLockProcess << TQString( "--forcelock" );
+ mLockProcess.kill(SIGUSR1); // Request forcelock
break;
case DontLock:
- mLockProcess << TQString( "--dontlock" );
+ mLockProcess.kill(SIGUSR2); // Request dontlock
break;
case SecureDialog:
- mLockProcess << TQString( "--securedialog" );
+ mLockProcess.kill(SIGWINCH); // Request secure dialog
break;
default:
break;
}
- if (mBlankOnly)
- mLockProcess << TQString( "--blank" );
-
- if (mLockProcess.start() == false )
- {
- kdDebug( 1204 ) << "Failed to start kdesktop_lock!" << endl;
- return false;
+ if (mBlankOnly) {
+ mLockProcess.kill(SIGTTIN); // Request blanking
}
+
+ mLockProcess.kill(SIGTTOU); // Start lock
XSetScreenSaver(qt_xdisplay(), 0, mXInterval, PreferBlanking, mXExposures);
mState = Preparing;
@@ -359,9 +397,7 @@ void SaverEngine::stopLockProcess()
void SaverEngine::lockProcessExited()
{
-printf("Lock process exited\n\r"); fflush(stdout);
bool abnormalExit = false;
- kdDebug(1204) << "SaverEngine: lock exited" << endl;
if (mLockProcess.normalExit() == false) {
abnormalExit = true;
}
@@ -387,6 +423,28 @@ printf("Lock process exited\n\r"); fflush(stdout);
system("logout");
}
}
+ else {
+ // Restart the lock process
+ if (!mLockProcess.isRunning()) {
+ mLockProcess.clearArguments();
+ TQString path = KStandardDirs::findExe( "kdesktop_lock" );
+ if( path.isEmpty())
+ {
+ kdDebug( 1204 ) << "Can't find kdesktop_lock!" << endl;
+ }
+ mLockProcess << path;
+ mLockProcess << TQString( "--internal" ) << TQString( "%1" ).arg(getpid());
+ if (mLockProcess.start() == false )
+ {
+ kdDebug( 1204 ) << "Failed to start kdesktop_lock!" << endl;
+ }
+ }
+ }
+}
+
+void SaverEngine::lockProcessWaiting()
+{
+ kdDebug(1204) << "SaverEngine: lock exited" << endl;
if (trinity_lockeng_sak_available == TRUE) {
handleSecureDialog();
}