bool
QLuaApplication::close()
{
if (! d->closingDown)
{
d->closingDown = true;
QCloseEvent ev;
sendEvent(this, &ev);
d->closingDown = ev.isAccepted();
if (d->closingDown)
{
sendPostedEvents();
QTimer::singleShot(0, this, SLOT(quit()));
}
}
return d->closingDown;
}
void
QLuaApplication::Private::ttyEndOfFile()
{
if (++ttyEofCount > 8)
{
sendPostedEvents();
theApp->quit();
}
else if (ttyConsole && interactionStarted)
{
accepting = false;
emit theApp->acceptingCommands(false);
luaInput.clear();
QByteArray prompt = "Really quit [y/N]? ";
ttyEofReceived = true;
theConsole->abortReadLine();
theConsole->readLine(prompt);
}
}
unsigned int EventLoop::exec(int timeoutTime)
{
int quitTimerId = -1;
if (timeoutTime != -1)
quitTimerId = registerTimer([=](int) { timeout = true; quit(); }, timeoutTime, Timer::SingleShot);
unsigned int ret = 0;
#if defined(HAVE_EPOLL) || defined(HAVE_KQUEUE)
enum { MaxEvents = 64 };
NativeEvent events[MaxEvents];
#endif
for (;;) {
for (;;) {
if (!sendPostedEvents() && !sendTimers())
break;
}
int waitUntil = -1;
{
std::lock_guard<std::mutex> locker(mutex);
// check if we're stopped
if (stop) {
stop = false;
if (timeout) {
timeout = false;
ret = Timeout;
} else {
ret = Success;
}
break;
}
const auto timer = timersByTime.begin();
if (timer != timersByTime.end()) {
const uint64_t now = currentTime();
waitUntil = std::max<int>((*timer)->when - now, 0);
}
}
int eventCount;
#if defined(HAVE_EPOLL)
eintrwrap(eventCount, epoll_wait(pollFd, events, MaxEvents, waitUntil));
#elif defined(HAVE_KQUEUE)
timespec timeout;
timespec* timeptr = 0;
if (waitUntil != -1) {
timeout.tv_sec = waitUntil / 1000;
timeout.tv_nsec = (waitUntil % 1000LLU) * 1000000;
timeptr = &timeout;
}
eintrwrap(eventCount, kevent(pollFd, 0, 0, events, MaxEvents, timeptr));
#elif defined(HAVE_SELECT)
timeval timeout;
timeval* timeptr = 0;
if (waitUntil != -1) {
timeout.tv_sec = waitUntil / 1000;
timeout.tv_usec = (waitUntil % 1000LLU) * 1000;
timeptr = &timeout;
}
fd_set rdfd, wrfd;
fd_set* wrfdp = 0;
FD_ZERO(&rdfd);
FD_ZERO(&wrfd);
int max = eventPipe[0];
FD_SET(max, &rdfd);
{
std::lock_guard<std::mutex> locker(mutex);
auto s = sockets.begin();
const auto e = sockets.end();
while (s != e) {
if (s->second.first & SocketRead) {
FD_SET(s->first, &rdfd);
}
if (s->second.first & SocketWrite) {
if (!wrfdp)
wrfdp = &wrfd;
FD_SET(s->first, wrfdp);
}
max = std::max(max, s->first);
++s;
}
}
eintrwrap(eventCount, select(max + 1, &rdfd, wrfdp, 0, timeptr));
#endif
if (eventCount < 0) {
// bad
ret = GeneralError;
break;
} else if (eventCount) {
#if defined(HAVE_SELECT)
NativeEvent event;
event.rdfd = &rdfd;
event.wrfd = wrfdp;
NativeEvent* events = &event;
#endif
ret = processSocketEvents(events, eventCount);
if (ret & (Success|GeneralError|Timeout))
break;
}
}
if (quitTimerId != -1)
clearTimer(quitTimerId);
return ret;
}
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 (!filterNativeEvent(QByteArrayLiteral("windows_generic_MSG"), &msg, 0)) {
TranslateMessage(&msg);
DispatchMessage(&msg);
}
} else if (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 < 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
sendPostedEvents();
}
if (needWM_QT_SENDPOSTEDEVENTS)
PostMessage(d->internalHwnd, WM_QT_SENDPOSTEDEVENTS, 0, 0);
return retVal;
}
