bool QEventDispatcherGlib::processEvents(QEventLoop::ProcessEventsFlags flags)
{
Q_D(QEventDispatcherGlib);
const bool canWait = (flags & QEventLoop::WaitForMoreEvents);
if (canWait)
emit aboutToBlock();
else
emit awake();
// tell postEventSourcePrepare() and timerSource about any new flags
QEventLoop::ProcessEventsFlags savedFlags = d->timerSource->processEventsFlags;
d->timerSource->processEventsFlags = flags;
if (!(flags & QEventLoop::EventLoopExec)) {
// force timers to be sent at normal priority
d->timerSource->runWithIdlePriority = false;
}
bool result = g_main_context_iteration(d->mainContext, canWait);
while (!result && canWait)
result = g_main_context_iteration(d->mainContext, canWait);
d->timerSource->processEventsFlags = savedFlags;
if (canWait)
emit awake();
return result;
}
bool QEventDispatcherGlib::processEvents(QEventLoop::ProcessEventsFlags flags)
{
Q_D(QEventDispatcherGlib);
const bool canWait = (flags & QEventLoop::WaitForMoreEvents);
if (canWait)
emit aboutToBlock();
else
emit awake();
// tell postEventSourcePrepare() and timerSource about any new flags
QEventLoop::ProcessEventsFlags savedFlags = d->timerSource->processEventsFlags;
d->timerSource->processEventsFlags = flags;
bool result = g_main_context_iteration(d->mainContext, canWait);
while (!result && canWait)
result = g_main_context_iteration(d->mainContext, canWait);
d->timerSource->processEventsFlags = savedFlags;
if (canWait)
emit awake();
return result;
}
void edunlink()
{
//printf("TimerFixer[%p] unlinking from dispatcher %p\n", this, ed);
if(ed)
{
disconnect(ed, SIGNAL(aboutToBlock()), this, SLOT(ed_aboutToBlock()));
ed = 0;
}
}
QXcbConnection::QXcbConnection(const char *displayName)
: m_displayName(displayName ? QByteArray(displayName) : qgetenv("DISPLAY"))
#ifdef XCB_USE_DRI2
, m_dri2_major(0)
, m_dri2_minor(0)
, m_dri2_support_probed(false)
, m_has_support_for_dri2(false)
#endif
{
int primaryScreen = 0;
#ifdef XCB_USE_XLIB
Display *dpy = XOpenDisplay(m_displayName.constData());
primaryScreen = DefaultScreen(dpy);
m_connection = XGetXCBConnection(dpy);
XSetEventQueueOwner(dpy, XCBOwnsEventQueue);
m_xlib_display = dpy;
#ifdef XCB_USE_EGL
EGLDisplay eglDisplay = eglGetDisplay(dpy);
m_egl_display = eglDisplay;
EGLint major, minor;
eglBindAPI(EGL_OPENGL_ES_API);
m_has_egl = eglInitialize(eglDisplay,&major,&minor);
#endif //XCB_USE_EGL
#else
m_connection = xcb_connect(m_displayName.constData(), &primaryScreen);
#endif //XCB_USE_XLIB
m_setup = xcb_get_setup(xcb_connection());
initializeAllAtoms();
xcb_screen_iterator_t it = xcb_setup_roots_iterator(m_setup);
int screenNumber = 0;
while (it.rem) {
m_screens << new QXcbScreen(this, it.data, screenNumber++);
xcb_screen_next(&it);
}
m_keyboard = new QXcbKeyboard(this);
#ifdef XCB_USE_DRI2
initializeDri2();
#endif
QSocketNotifier *notifier = new QSocketNotifier(xcb_get_file_descriptor(xcb_connection()), QSocketNotifier::Read, this);
connect(notifier, SIGNAL(activated(int)), this, SLOT(processXcbEvents()));
QAbstractEventDispatcher *dispatcher = QAbstractEventDispatcher::instance(qApp->thread());
connect(dispatcher, SIGNAL(aboutToBlock()), this, SLOT(processXcbEvents()));
sync();
}
QWaylandDisplay::QWaylandDisplay()
: mLastKeyboardFocusInputDevice(0)
, mDndSelectionHandler(0)
, mWindowExtension(0)
, mSubSurfaceExtension(0)
, mOutputExtension(0)
, mTouchExtension(0)
, mQtKeyExtension(0)
{
display = this;
qRegisterMetaType<uint32_t>("uint32_t");
mEventThreadObject = new QWaylandEventThread(0);
mEventThread = new QThread(this);
mEventThreadObject->moveToThread(mEventThread);
mEventThread->start();
mEventThreadObject->displayConnect();
mDisplay = mEventThreadObject->display(); //blocks until display is available
//Create a new even queue for the QtGui thread
mEventQueue = wl_display_create_queue(mDisplay);
struct ::wl_registry *registry = wl_display_get_registry(mDisplay);
wl_proxy_set_queue((struct wl_proxy *)registry, mEventQueue);
init(registry);
QAbstractEventDispatcher *dispatcher = QGuiApplicationPrivate::eventDispatcher;
connect(dispatcher, SIGNAL(aboutToBlock()), this, SLOT(flushRequests()));
connect(mEventThreadObject, SIGNAL(newEventsRead()), this, SLOT(flushRequests()));
#ifdef QT_WAYLAND_GL_SUPPORT
mEglIntegration = QWaylandGLIntegration::createGLIntegration(this);
#endif
mWindowManagerIntegration = new QWaylandWindowManagerIntegration(this);
blockingReadEvents();
#ifdef QT_WAYLAND_GL_SUPPORT
mEglIntegration->initialize();
flushRequests();
while (mEglIntegration->waitingForEvents())
blockingReadEvents();
#endif
waitForScreens();
}
int QAbstractEventDispatcher::qt_metacall(QMetaObject::Call _c, int _id, void **_a)
{
_id = QObject::qt_metacall(_c, _id, _a);
if (_id < 0)
return _id;
if (_c == QMetaObject::InvokeMetaMethod) {
switch (_id) {
case 0: aboutToBlock(); break;
case 1: awake(); break;
default: ;
}
_id -= 2;
}
return _id;
}
bool QEventDispatcherUNIX::processEvents(QEventLoop::ProcessEventsFlags flags)
{
Q_D(QEventDispatcherUNIX);
d->interrupt = false;
// we are awake, broadcast it
emit awake();
QCoreApplicationPrivate::sendPostedEvents(0, 0, d->threadData);
int nevents = 0;
const bool canWait = (d->threadData->canWait
&& !d->interrupt
&& (flags & QEventLoop::WaitForMoreEvents));
if (canWait)
emit aboutToBlock();
if (!d->interrupt) {
// return the maximum time we can wait for an event.
timeval *tm = 0;
timeval wait_tm = { 0l, 0l };
if (!(flags & QEventLoop::X11ExcludeTimers)) {
if (d->timerList.timerWait(wait_tm))
tm = &wait_tm;
}
if (!canWait) {
if (!tm)
tm = &wait_tm;
// no time to wait
tm->tv_sec = 0l;
tm->tv_usec = 0l;
}
nevents = d->doSelect(flags, tm);
// activate timers
if (! (flags & QEventLoop::X11ExcludeTimers)) {
nevents += activateTimers();
}
}
// return true if we handled events, false otherwise
return (nevents > 0);
}
QWaylandDisplay::QWaylandDisplay(void)
: argb_visual(0), premultiplied_argb_visual(0), rgb_visual(0)
{
display = this;
qRegisterMetaType<uint32_t>("uint32_t");
mDisplay = wl_display_connect(NULL);
if (mDisplay == NULL) {
qErrnoWarning(errno, "Failed to create display");
qFatal("No wayland connection available.");
}
wl_display_add_global_listener(mDisplay, QWaylandDisplay::displayHandleGlobal, this);
#ifdef QT_WAYLAND_GL_SUPPORT
mEglIntegration = QWaylandGLIntegration::createGLIntegration(this);
#endif
#ifdef QT_WAYLAND_WINDOWMANAGER_SUPPORT
mWindowManagerIntegration = QWaylandWindowManagerIntegration::createIntegration(this);
#endif
blockingReadEvents();
#ifdef QT_WAYLAND_GL_SUPPORT
mEglIntegration->initialize();
#endif
connect(QAbstractEventDispatcher::instance(), SIGNAL(aboutToBlock()), this, SLOT(flushRequests()));
mFd = wl_display_get_fd(mDisplay, sourceUpdate, this);
mReadNotifier = new QSocketNotifier(mFd, QSocketNotifier::Read, this);
connect(mReadNotifier, SIGNAL(activated(int)), this, SLOT(readEvents()));
waitForScreens();
}
bool QEventDispatcherMac::processEvents(QEventLoop::ProcessEventsFlags flags)
{
Q_D(QEventDispatcherMac);
#if 0
//TrackDrag says you may not use the EventManager things..
if(qt_mac_in_drag) {
qWarning("Qt: Cannot process events whilst dragging!");
return false;
}
#endif
d->interrupt = false;
emit awake();
#ifndef QT_MAC_NO_QUICKDRAW
if(!qt_mac_safe_pdev) { //create an empty widget and this can be used for a port anytime
QWidget *tlw = new QWidget;
tlw->setAttribute(Qt::WA_DeleteOnClose);
tlw->setObjectName(QLatin1String("empty_widget"));
tlw->hide();
qt_mac_safe_pdev = tlw;
}
#endif
bool retVal = false;
for (;;) {
QApplicationPrivate::sendPostedEvents(0, 0, d->threadData);
if (d->activateTimers() > 0) //send null timers
retVal = true;
do {
EventRef event;
if (!(flags & QEventLoop::ExcludeUserInputEvents)
&& !d->queuedUserInputEvents.isEmpty()) {
// process a pending user input event
event = d->queuedUserInputEvents.takeFirst();
} else {
OSStatus err = ReceiveNextEvent(0,0, kEventDurationNoWait, true, &event);
if(err != noErr)
continue;
// else
if (flags & QEventLoop::ExcludeUserInputEvents) {
UInt32 ekind = GetEventKind(event),
eclass = GetEventClass(event);
switch(eclass) {
case kEventClassQt:
if(ekind != kEventQtRequestContext)
break;
// fall through
case kEventClassMouse:
case kEventClassKeyboard:
d->queuedUserInputEvents.append(event);
continue;
}
}
}
if (!filterEvent(&event) && qt_mac_send_event(flags, event))
retVal = true;
ReleaseEvent(event);
} while(!d->interrupt && GetNumEventsInQueue(GetMainEventQueue()) > 0);
bool canWait = (d->threadData->canWait
&& !retVal
&& !d->interrupt
&& (flags & QEventLoop::WaitForMoreEvents)
&& !d->zero_timer_count);
if (canWait) {
emit aboutToBlock();
while(CFRunLoopRunInMode(kCFRunLoopDefaultMode, 1.0e20, true) == kCFRunLoopRunTimedOut);
flags &= ~QEventLoop::WaitForMoreEvents;
emit awake();
} else {
CFRunLoopRunInMode(kCFRunLoopDefaultMode, kEventDurationNoWait, true);
break;
}
}
return retVal;
}
bool QEventLoop::processEvents( ProcessEventsFlags flags )
{
// process events from the X server
XEvent event;
int nevents = 0;
#if defined(QT_THREAD_SUPPORT)
QMutexLocker locker( QApplication::qt_mutex );
#endif
// handle gui and posted events
if ( qt_is_gui_used ) {
QApplication::sendPostedEvents();
// Two loops so that posted events accumulate
while ( XPending( QPaintDevice::x11AppDisplay() ) ) {
// also flushes output buffer
while ( XPending( QPaintDevice::x11AppDisplay() ) ) {
if ( d->shortcut ) {
return FALSE;
}
XNextEvent( QPaintDevice::x11AppDisplay(), &event );
if ( flags & ExcludeUserInput ) {
switch ( event.type ) {
case ButtonPress:
case ButtonRelease:
case MotionNotify:
case XKeyPress:
case XKeyRelease:
case EnterNotify:
case LeaveNotify:
continue;
case ClientMessage:
{
// from qapplication_x11.cpp
extern Atom qt_wm_protocols;
extern Atom qt_wm_take_focus;
extern Atom qt_qt_scrolldone;
// only keep the wm_take_focus and
// qt_qt_scrolldone protocols, discard all
// other client messages
if ( event.xclient.format != 32 )
continue;
if ( event.xclient.message_type == qt_wm_protocols ||
(Atom) event.xclient.data.l[0] == qt_wm_take_focus )
break;
if ( event.xclient.message_type == qt_qt_scrolldone )
break;
}
default: break;
}
}
nevents++;
if ( qApp->x11ProcessEvent( &event ) == 1 )
return TRUE;
}
}
}
if ( d->shortcut ) {
return FALSE;
}
QApplication::sendPostedEvents();
const uint exclude_all = ExcludeSocketNotifiers | 0x08;
// 0x08 == ExcludeTimers for X11 only
if ( nevents > 0 && ( flags & exclude_all ) == exclude_all &&
( flags & WaitForMore ) ) {
return TRUE;
}
// don't block if exitLoop() or exit()/quit() has been called.
bool canWait = d->exitloop || d->quitnow ? FALSE : (flags & WaitForMore);
// Process timers and socket notifiers - the common UNIX stuff
// return the maximum time we can wait for an event.
static timeval zerotm;
timeval *tm = 0;
if ( ! ( flags & 0x08 ) ) { // 0x08 == ExcludeTimers for X11 only
tm = qt_wait_timer(); // wait for timer or X event
if ( !canWait ) {
if ( !tm )
tm = &zerotm;
tm->tv_sec = 0; // no time to wait
tm->tv_usec = 0;
}
}
int highest = 0;
if ( ! ( flags & ExcludeSocketNotifiers ) ) {
// return the highest fd we can wait for input on
if ( d->sn_highest >= 0 ) { // has socket notifier(s)
if ( d->sn_vec[0].list && ! d->sn_vec[0].list->isEmpty() )
d->sn_vec[0].select_fds = d->sn_vec[0].enabled_fds;
else
FD_ZERO( &d->sn_vec[0].select_fds );
if ( d->sn_vec[1].list && ! d->sn_vec[1].list->isEmpty() )
d->sn_vec[1].select_fds = d->sn_vec[1].enabled_fds;
else
FD_ZERO( &d->sn_vec[1].select_fds );
if ( d->sn_vec[2].list && ! d->sn_vec[2].list->isEmpty() )
d->sn_vec[2].select_fds = d->sn_vec[2].enabled_fds;
else
FD_ZERO( &d->sn_vec[2].select_fds );
} else {
FD_ZERO( &d->sn_vec[0].select_fds );
FD_ZERO( &d->sn_vec[1].select_fds );
FD_ZERO( &d->sn_vec[2].select_fds );
}
highest = d->sn_highest;
} else {
FD_ZERO( &d->sn_vec[0].select_fds );
FD_ZERO( &d->sn_vec[1].select_fds );
FD_ZERO( &d->sn_vec[2].select_fds );
}
if ( qt_is_gui_used ) {
// select for events on the event socket - only on X11
FD_SET( d->xfd, &d->sn_vec[0].select_fds );
highest = QMAX( highest, d->xfd );
}
FD_SET( d->thread_pipe[0], &d->sn_vec[0].select_fds );
highest = QMAX( highest, d->thread_pipe[0] );
if ( canWait )
emit aboutToBlock();
if ( qt_preselect_handler ) {
QVFuncList::Iterator it, end = qt_preselect_handler->end();
for ( it = qt_preselect_handler->begin(); it != end; ++it )
(**it)();
}
// unlock the GUI mutex and select. when we return from this function, there is
// something for us to do
#if defined(QT_THREAD_SUPPORT)
locker.mutex()->unlock();
#endif
int nsel;
do {
nsel = select( highest + 1,
&d->sn_vec[0].select_fds,
&d->sn_vec[1].select_fds,
&d->sn_vec[2].select_fds,
tm );
} while (nsel == -1 && (errno == EINTR || errno == EAGAIN));
// relock the GUI mutex before processing any pending events
#if defined(QT_THREAD_SUPPORT)
locker.mutex()->lock();
#endif
// we are awake, broadcast it
emit awake();
emit qApp->guiThreadAwake();
if (nsel == -1) {
if (errno == EBADF) {
// it seems a socket notifier has a bad fd... find out
// which one it is and disable it
fd_set fdset;
zerotm.tv_sec = zerotm.tv_usec = 0l;
for (int type = 0; type < 3; ++type) {
QPtrList<QSockNot> *list = d->sn_vec[type].list;
if (!list) continue;
QSockNot *sn = list->first();
while (sn) {
FD_ZERO(&fdset);
FD_SET(sn->fd, &fdset);
int ret = -1;
do {
switch (type) {
case 0: // read
ret = select(sn->fd + 1, &fdset, 0, 0, &zerotm);
break;
case 1: // write
ret = select(sn->fd + 1, 0, &fdset, 0, &zerotm);
break;
case 2: // except
ret = select(sn->fd + 1, 0, 0, &fdset, &zerotm);
break;
}
} while (ret == -1 && (errno == EINTR || errno == EAGAIN));
if (ret == -1 && errno == EBADF) {
// disable the invalid socket notifier
static const char *t[] = { "Read", "Write", "Exception" };
qWarning("QSocketNotifier: invalid socket %d and type '%s', disabling...",
sn->fd, t[type]);
sn->obj->setEnabled(FALSE);
}
sn = list->next();
}
}
} else {
// EINVAL... shouldn't happen, so let's complain to stderr
// and hope someone sends us a bug report
perror( "select" );
}
}
// some other thread woke us up... consume the data on the thread pipe so that
// select doesn't immediately return next time
if ( nsel > 0 && FD_ISSET( d->thread_pipe[0], &d->sn_vec[0].select_fds ) ) {
char c;
::read( d->thread_pipe[0], &c, 1 );
}
if ( qt_postselect_handler ) {
QVFuncList::Iterator it, end = qt_postselect_handler->end();
for ( it = qt_postselect_handler->begin(); it != end; ++it )
(**it)();
}
// activate socket notifiers
if ( ! ( flags & ExcludeSocketNotifiers ) && nsel > 0 && d->sn_highest >= 0 ) {
// if select says data is ready on any socket, then set the socket notifier
// to pending
int i;
for ( i=0; i<3; i++ ) {
if ( ! d->sn_vec[i].list )
continue;
QPtrList<QSockNot> *list = d->sn_vec[i].list;
QSockNot *sn = list->first();
while ( sn ) {
if ( FD_ISSET( sn->fd, &d->sn_vec[i].select_fds ) )
setSocketNotifierPending( sn->obj );
sn = list->next();
}
}
nevents += activateSocketNotifiers();
}
// activate timers
if ( ! ( flags & 0x08 ) ) {
// 0x08 == ExcludeTimers for X11 only
nevents += activateTimers();
}
// color approx. optimization - only on X11
qt_reset_color_avail();
// return true if we handled events, false otherwise
return (nevents > 0);
}
void QWaylandIntegration::initialize()
{
QAbstractEventDispatcher *dispatcher = QGuiApplicationPrivate::eventDispatcher;
QObject::connect(dispatcher, SIGNAL(aboutToBlock()), mDisplay, SLOT(flushRequests()));
QObject::connect(dispatcher, SIGNAL(awake()), mDisplay, SLOT(flushRequests()));
}
int QEventDispatcherBlackberry::select(int nfds, fd_set *readfds, fd_set *writefds, fd_set *exceptfds,
timespec *timeout)
{
Q_UNUSED(nfds);
Q_D(QEventDispatcherBlackberry);
const BBScopedLoopLevelCounter bbLoopCounter(d);
BpsChannelScopeSwitcher channelSwitcher(d->bps_channel);
// prepare file sets for bps callback
d->ioData->count = 0;
d->ioData->readfds = readfds;
d->ioData->writefds = writefds;
d->ioData->exceptfds = exceptfds;
// reset all file sets
if (readfds)
FD_ZERO(readfds);
if (writefds)
FD_ZERO(writefds);
if (exceptfds)
FD_ZERO(exceptfds);
bps_event_t *event = 0;
unsigned int eventCount = 0;
// If an event handler called through filterEvent() starts a nested event loop by creating a
// new QEventLoop, we will recursively enter this function again. However, each time
// bps_get_event() is called, it destroys the last event it handed out before returning the
// next event. We don't want it to destroy the event that triggered the nested event loop,
// since there may still be more handlers that need to get that event, once the nested event
// loop is done and control returns to the outer event loop.
//
// So we move an event to a holding channel, which takes ownership of the event. Putting
// the event on our own channel allows us to manage when it is destroyed, keeping it alive
// until we know we are done with it. Each recursive call of this function needs to have
// it's own holding channel, since a channel is a queue, not a stack.
//
// However, a recursive call into this function happens very rarely compared to the many
// times this function is called. We don't want to create a holding channel for each time
// this function is called, only when it is called recursively. Thus we have the instance
// variable d->holding_channel to use in the common case. We keep track of recursive calls
// with d->loop_level. If we are in a recursive call, then we create a new holding channel
// for this run.
int holding_channel = d->holding_channel;
if ((d->loop_level > 1) &&
Q_UNLIKELY(bps_channel_create(&holding_channel, 0) != BPS_SUCCESS)) {
qWarning("QEventDispatcherBlackberry: bps_channel_create failed");
holding_channel = -1;
}
// Convert timeout to milliseconds
int timeoutTotal = -1;
if (timeout)
timeoutTotal = timespecToMillisecs(*timeout);
int timeoutLeft = timeoutTotal;
timespec startTime = qt_gettime();
// This loop exists such that we can drain the bps event queue of all native events
// more efficiently than if we were to return control to Qt after each event. This
// is important for handling touch events which can come in rapidly.
forever {
// Only emit the awake() and aboutToBlock() signals in the second iteration. For the
// first iteration, the UNIX event dispatcher will have taken care of that already.
// Also native events are actually processed one loop iteration after they were
// retrieved with bps_get_event().
// Filtering the native event should happen between the awake() and aboutToBlock()
// signal emissions. The calls awake() - filterNativeEvent() - aboutToBlock() -
// bps_get_event() need not to be interrupted by a break or return statement.
if (eventCount > 0) {
if (event) {
emit awake();
filterNativeEvent(QByteArrayLiteral("bps_event_t"), static_cast<void*>(event), 0);
emit aboutToBlock();
if (Q_LIKELY(holding_channel != -1)) {
// We are now done with this BPS event. Destroy it.
destroyHeldBpsEvent(holding_channel);
}
}
// Update the timeout
// Clock source is monotonic, so we can recalculate how much timeout is left
if (timeoutTotal != -1) {
timespec t2 = qt_gettime();
timeoutLeft = timeoutTotal
- (timespecToMillisecs(t2) - timespecToMillisecs(startTime));
if (timeoutLeft < 0)
timeoutLeft = 0;
}
timespec tnext;
if (d->timerList.timerWait(tnext)) {
int timeoutNext = timespecToMillisecs(tnext);
if (timeoutNext < timeoutLeft || timeoutTotal == -1) {
timeoutTotal = timeoutLeft = timeoutNext;
startTime = qt_gettime();
}
}
}
event = 0;
{ // We need to increase loop level in this scope,
// because bps_get_event can also invoke callbacks
QScopedLoopLevelCounter loopLevelCounter(d->threadData);
// Wait for event or file to be ready
const int result = bps_get_event(&event, timeoutLeft);
if (Q_UNLIKELY(result != BPS_SUCCESS))
qWarning("QEventDispatcherBlackberry: bps_get_event failed");
}
if (!event) // In case of !event, we break out of the loop to let Qt process the timers
break; // (since timeout has expired) and socket notifiers that are now ready.
if (bps_event_get_domain(event) == bpsUnblockDomain) {
timeoutTotal = 0; // in order to immediately drain the event queue of native events
event = 0; // (especially touch move events) we don't break out here
} else {
// Move the event to our holding channel so we can manage when it is destroyed.
if (Q_LIKELY(holding_channel != 1) &&
Q_UNLIKELY(bps_channel_push_event(holding_channel, event) != BPS_SUCCESS)) {
qWarning("QEventDispatcherBlackberry: bps_channel_push_event failed");
}
}
++eventCount;
// Make sure we are not trapped in this loop due to continuous native events
// also we cannot recalculate the timeout without a monotonic clock as the time may have changed
const unsigned int maximumEventCount = 12;
if (Q_UNLIKELY((eventCount > maximumEventCount && timeoutLeft == 0)
|| !QElapsedTimer::isMonotonic())) {
if (event) {
filterNativeEvent(QByteArrayLiteral("bps_event_t"), static_cast<void*>(event), 0);
if (Q_LIKELY(holding_channel != -1)) {
// We are now done with this BPS event. Destroy it.
destroyHeldBpsEvent(holding_channel);
}
}
break;
}
}
// If this was a recursive call into this function, a new holding channel was created for
// this run, so destroy it now.
if ((holding_channel != d->holding_channel) &&
Q_LIKELY(holding_channel != -1) &&
Q_UNLIKELY(bps_channel_destroy(holding_channel) != BPS_SUCCESS)) {
qWarning("QEventDispatcherBlackberry: bps_channel_destroy failed");
}
// the number of bits set in the file sets
return d->ioData->count;
}
bool QEventDispatcherSymbian::processEvents ( QEventLoop::ProcessEventsFlags flags )
{
bool handledAnyEvent = false;
bool oldNoSocketEventsValue = m_noSocketEvents;
bool oldInsideTimerEventValue = m_insideTimerEvent;
m_insideTimerEvent = false;
QT_TRY {
Q_D(QAbstractEventDispatcher);
// It is safe if this counter overflows. The main importance is that each
// iteration count is different from the last.
m_iterationCount++;
RThread &thread = d->threadData->symbian_thread_handle;
bool block;
if (flags & QEventLoop::WaitForMoreEvents) {
block = true;
emit aboutToBlock();
} else {
block = false;
}
if (flags & QEventLoop::ExcludeSocketNotifiers) {
m_noSocketEvents = true;
} else {
m_noSocketEvents = false;
handledAnyEvent = sendDeferredSocketEvents();
}
bool handledSymbianEvent = false;
m_interrupt = false;
#ifdef QT_SYMBIAN_PRIORITY_DROP
QElapsedTimer eventTimer;
#endif
while (1) {
if (block) {
// This is where Qt will spend most of its time.
CActiveScheduler::Current()->WaitForAnyRequest();
} else {
if (thread.RequestCount() == 0) {
#ifdef QT_SYMBIAN_PRIORITY_DROP
if (idleDetectorThread()->hasRun()) {
m_lastIdleRequestTimer.start();
idleDetectorThread()->kick();
} else if (m_lastIdleRequestTimer.elapsed() > maxBusyTime) {
User::AfterHighRes(m_delay);
}
#endif
break;
}
// This one should return without delay.
CActiveScheduler::Current()->WaitForAnyRequest();
}
#ifdef QT_SYMBIAN_PRIORITY_DROP
if (idleDetectorThread()->hasRun()) {
if (m_delay > baseDelay)
m_delay -= baseDelay;
m_lastIdleRequestTimer.start();
idleDetectorThread()->kick();
} else if (m_lastIdleRequestTimer.elapsed() > maxBusyTime) {
User::AfterHighRes(m_delay);
// allow delay to be up to 1/4 of execution time
if (!idleDetectorThread()->hasRun() && m_delay*3 < m_avgEventTime)
m_delay += baseDelay;
}
eventTimer.start();
#endif
TInt error;
handledSymbianEvent = CActiveScheduler::RunIfReady(error, KMinTInt);
if (error) {
qWarning("CActiveScheduler::RunIfReady() returned error: %i\n", error);
CActiveScheduler::Current()->Error(error);
}
#ifdef QT_SYMBIAN_PRIORITY_DROP
int eventDur = eventTimer.elapsed()*1000;
// average is calcualted as a 5% decaying exponential average
m_avgEventTime = (m_avgEventTime * 95 + eventDur * 5) / 100;
#endif
if (!handledSymbianEvent) {
qFatal("QEventDispatcherSymbian::processEvents(): Caught Symbian stray signal");
}
handledAnyEvent = true;
if (m_interrupt) {
break;
}
block = false;
};
emit awake();
} QT_CATCH (const std::exception& ex) {
#ifndef QT_NO_EXCEPTIONS
CActiveScheduler::Current()->Error(qt_symbian_exception2Error(ex));
#endif
}
bool QEventDispatcherWin32::processEvents(QEventLoop::ProcessEventsFlags flags)
{
Q_D(QEventDispatcherWin32);
if (!d->internalHwnd)
createInternalHwnd();
d->interrupt = false;
emit awake();
bool canWait;
bool retVal = false;
bool seenWM_QT_SENDPOSTEDEVENTS = false;
bool needWM_QT_SENDPOSTEDEVENTS = false;
do {
DWORD waitRet = 0;
HANDLE pHandles[MAXIMUM_WAIT_OBJECTS - 1];
QVarLengthArray<MSG> processedTimers;
while (!d->interrupt) {
DWORD nCount = d->winEventNotifierList.count();
Q_ASSERT(nCount < MAXIMUM_WAIT_OBJECTS - 1);
MSG msg;
bool haveMessage;
if (!(flags & QEventLoop::ExcludeUserInputEvents) && !d->queuedUserInputEvents.isEmpty()) {
// process queued user input events
haveMessage = true;
msg = d->queuedUserInputEvents.takeFirst();
} else if(!(flags & QEventLoop::ExcludeSocketNotifiers) && !d->queuedSocketEvents.isEmpty()) {
// process queued socket events
haveMessage = true;
msg = d->queuedSocketEvents.takeFirst();
} else {
haveMessage = PeekMessage(&msg, 0, 0, 0, PM_REMOVE);
if (haveMessage && (flags & QEventLoop::ExcludeUserInputEvents)
&& ((msg.message >= WM_KEYFIRST
&& msg.message <= WM_KEYLAST)
|| (msg.message >= WM_MOUSEFIRST
&& msg.message <= WM_MOUSELAST)
|| msg.message == WM_MOUSEWHEEL
|| msg.message == WM_MOUSEHWHEEL
|| msg.message == WM_TOUCH
#ifndef QT_NO_GESTURES
|| msg.message == WM_GESTURE
|| msg.message == WM_GESTURENOTIFY
#endif
|| msg.message == WM_CLOSE)) {
// queue user input events for later processing
haveMessage = false;
d->queuedUserInputEvents.append(msg);
}
if (haveMessage && (flags & QEventLoop::ExcludeSocketNotifiers)
&& (msg.message == WM_QT_SOCKETNOTIFIER && msg.hwnd == d->internalHwnd)) {
// queue socket events for later processing
haveMessage = false;
d->queuedSocketEvents.append(msg);
}
}
if (!haveMessage) {
// no message - check for signalled objects
for (int i=0; i<(int)nCount; i++)
pHandles[i] = d->winEventNotifierList.at(i)->handle();
waitRet = MsgWaitForMultipleObjectsEx(nCount, pHandles, 0, QS_ALLINPUT, MWMO_ALERTABLE);
if ((haveMessage = (waitRet == WAIT_OBJECT_0 + nCount))) {
// a new message has arrived, process it
continue;
}
}
if (haveMessage) {
#ifdef Q_OS_WINCE
// WinCE doesn't support hooks at all, so we have to call this by hand :(
(void) qt_GetMessageHook(0, PM_REMOVE, (LPARAM) &msg);
#endif
if (d->internalHwnd == msg.hwnd && msg.message == WM_QT_SENDPOSTEDEVENTS) {
if (seenWM_QT_SENDPOSTEDEVENTS) {
// when calling processEvents() "manually", we only want to send posted
// events once
needWM_QT_SENDPOSTEDEVENTS = true;
continue;
}
seenWM_QT_SENDPOSTEDEVENTS = true;
} else if (msg.message == WM_TIMER) {
// avoid live-lock by keeping track of the timers we've already sent
bool found = false;
for (int i = 0; !found && i < processedTimers.count(); ++i) {
const MSG processed = processedTimers.constData()[i];
found = (processed.wParam == msg.wParam && processed.hwnd == msg.hwnd && processed.lParam == msg.lParam);
}
if (found)
continue;
processedTimers.append(msg);
} else if (msg.message == WM_QUIT) {
if (QCoreApplication::instance())
QCoreApplication::instance()->quit();
return false;
}
if (!filterEvent(&msg)) {
TranslateMessage(&msg);
DispatchMessage(&msg);
}
} else if (waitRet >= WAIT_OBJECT_0 && waitRet < WAIT_OBJECT_0 + nCount) {
d->activateEventNotifier(d->winEventNotifierList.at(waitRet - WAIT_OBJECT_0));
} else {
// nothing todo so break
break;
}
retVal = true;
}
// still nothing - wait for message or signalled objects
canWait = (!retVal
&& !d->interrupt
&& (flags & QEventLoop::WaitForMoreEvents));
if (canWait) {
DWORD nCount = d->winEventNotifierList.count();
Q_ASSERT(nCount < MAXIMUM_WAIT_OBJECTS - 1);
for (int i=0; i<(int)nCount; i++)
pHandles[i] = d->winEventNotifierList.at(i)->handle();
emit aboutToBlock();
waitRet = MsgWaitForMultipleObjectsEx(nCount, pHandles, INFINITE, QS_ALLINPUT, MWMO_ALERTABLE | MWMO_INPUTAVAILABLE);
emit awake();
if (waitRet >= WAIT_OBJECT_0 && waitRet < WAIT_OBJECT_0 + nCount) {
d->activateEventNotifier(d->winEventNotifierList.at(waitRet - WAIT_OBJECT_0));
retVal = true;
}
}
} while (canWait);
if (!seenWM_QT_SENDPOSTEDEVENTS && (flags & QEventLoop::EventLoopExec) == 0) {
// when called "manually", always send posted events
QCoreApplicationPrivate::sendPostedEvents(0, 0, d->threadData);
}
if (needWM_QT_SENDPOSTEDEVENTS)
PostMessage(d->internalHwnd, WM_QT_SENDPOSTEDEVENTS, 0, 0);
return retVal;
}
Compositor::Compositor(QWaylandCompositor *qt_compositor)
: m_display(new Display)
, m_default_input_device(0)
, m_pageFlipper(0)
, m_current_frame(0)
, m_last_queued_buf(-1)
, m_qt_compositor(qt_compositor)
, m_orientation(Qt::PrimaryOrientation)
, m_directRenderSurface(0)
, m_directRenderContext(0)
, m_directRenderActive(false)
#if defined (QT_COMPOSITOR_WAYLAND_GL)
, m_graphics_hw_integration(0)
#endif
, m_outputExtension(0)
, m_surfaceExtension(0)
, m_subSurfaceExtension(0)
, m_touchExtension(0)
, m_retainNotify(0)
{
compositor = this;
#if defined (QT_COMPOSITOR_WAYLAND_GL)
QWindow *window = qt_compositor->window();
if (window && window->surfaceType() != QWindow::RasterSurface) {
QStringList keys = QWaylandGraphicsHardwareIntegrationFactory::keys();
QString targetKey;
QByteArray hardwareIntegration = qgetenv("QT_WAYLAND_HARDWARE_INTEGRATION");
if (keys.contains(QString::fromLocal8Bit(hardwareIntegration.constData()))) {
targetKey = QString::fromLocal8Bit(hardwareIntegration.constData());
} else if (keys.contains(QString::fromLatin1("wayland-egl"))) {
targetKey = QString::fromLatin1("wayland-egl");
} else if (!keys.isEmpty()) {
targetKey = keys.first();
}
if (!targetKey.isEmpty()) {
m_graphics_hw_integration = QWaylandGraphicsHardwareIntegrationFactory::create(targetKey, QStringList());
if (m_graphics_hw_integration) {
m_graphics_hw_integration->setCompositor(qt_compositor);
}
}
//BUG: if there is no hw_integration, bad things will probably happen
}
#endif
m_windowManagerIntegration = new WindowManagerServerIntegration(qt_compositor, this);
wl_display_add_global(m_display->handle(),&wl_compositor_interface,this,Compositor::bind_func);
m_data_device_manager = new DataDeviceManager(this);
wl_display_init_shm(m_display->handle());
m_output_global = new OutputGlobal(m_display->handle());
m_shell = new Shell();
wl_display_add_global(m_display->handle(), &wl_shell_interface, m_shell, Shell::bind_func);
m_outputExtension = new OutputExtensionGlobal(this);
m_surfaceExtension = new SurfaceExtensionGlobal(this);
m_qtkeyExtension = new QtKeyExtensionGlobal(this);
m_touchExtension = new TouchExtensionGlobal(this);
if (wl_display_add_socket(m_display->handle(), qt_compositor->socketName())) {
fprintf(stderr, "Fatal: Failed to open server socket\n");
exit(EXIT_FAILURE);
}
m_loop = wl_display_get_event_loop(m_display->handle());
int fd = wl_event_loop_get_fd(m_loop);
QSocketNotifier *sockNot = new QSocketNotifier(fd, QSocketNotifier::Read, this);
connect(sockNot, SIGNAL(activated(int)), this, SLOT(processWaylandEvents()));
QAbstractEventDispatcher *dispatcher = QGuiApplicationPrivate::eventDispatcher;
connect(dispatcher, SIGNAL(aboutToBlock()), this, SLOT(processWaylandEvents()));
qRegisterMetaType<SurfaceBuffer*>("SurfaceBuffer*");
//initialize distancefieldglyphcache here
}
bool QEventDispatcherSymbian::processEvents ( QEventLoop::ProcessEventsFlags flags )
{
bool handledAnyEvent = false;
bool oldNoSocketEventsValue = m_noSocketEvents;
QT_TRY {
Q_D(QAbstractEventDispatcher);
// It is safe if this counter overflows. The main importance is that each
// iteration count is different from the last.
m_iterationCount++;
RThread &thread = d->threadData->symbian_thread_handle;
bool block;
if (flags & QEventLoop::WaitForMoreEvents) {
block = true;
emit aboutToBlock();
} else {
block = false;
}
if (flags & QEventLoop::ExcludeSocketNotifiers) {
m_noSocketEvents = true;
} else {
m_noSocketEvents = false;
handledAnyEvent = sendDeferredSocketEvents();
}
bool handledSymbianEvent = false;
m_interrupt = false;
/*
* This QTime variable is used to measure the time it takes to finish
* the event loop. If we take too long in the loop, other processes
* may be starved and killed. After the first event has completed, we
* take the current time, and if the remaining events take longer than
* a preset time, we temporarily lower the priority to force a context
* switch. For applications that do not take unecessarily long in the
* event loop, the priority will not be altered.
*/
QTime time;
enum {
FirstRun,
SubsequentRun,
TimeStarted
} timeState = FirstRun;
TProcessPriority priority;
while (1) {
if (block) {
// This is where Qt will spend most of its time.
CActiveScheduler::Current()->WaitForAnyRequest();
} else {
if (thread.RequestCount() == 0) {
break;
}
// This one should return without delay.
CActiveScheduler::Current()->WaitForAnyRequest();
}
if (timeState == SubsequentRun) {
time.start();
timeState = TimeStarted;
}
TInt error;
handledSymbianEvent = CActiveScheduler::RunIfReady(error, CActive::EPriorityIdle);
if (error) {
qWarning("CActiveScheduler::RunIfReady() returned error: %i\n", error);
CActiveScheduler::Current()->Error(error);
}
if (!handledSymbianEvent) {
qFatal("QEventDispatcherSymbian::processEvents(): Caught Symbian stray signal");
}
handledAnyEvent = true;
if (m_interrupt) {
break;
}
block = false;
if (timeState == TimeStarted && time.elapsed() > 100) {
priority = m_processHandle.Priority();
m_processHandle.SetPriority(EPriorityBackground);
time.start();
// Slight chance of race condition in the next lines, but nothing fatal
// will happen, just wrong priority.
if (m_processHandle.Priority() == EPriorityBackground) {
m_processHandle.SetPriority(priority);
}
}
if (timeState == FirstRun)
timeState = SubsequentRun;
};
emit awake();
} QT_CATCH (const std::exception& ex) {
#ifndef QT_NO_EXCEPTIONS
CActiveScheduler::Current()->Error(qt_symbian_exception2Error(ex));
#endif
}
