DWORD wxGUIAppTraits::WaitForThread(WXHANDLE hThread, int flags)
{
// We only ever dispatch messages from the main thread and, additionally,
// even from the main thread we shouldn't wait for the message if we don't
// have a running event loop as we would never remove them from the message
// queue then and so we would enter an infinite loop as
// MsgWaitForMultipleObjects() keeps returning WAIT_OBJECT_0 + 1.
if ( flags == wxTHREAD_WAIT_BLOCK ||
!wxIsMainThread() ||
!wxEventLoop::GetActive() )
{
// Simple blocking wait.
return DoSimpleWaitForThread(hThread);
}
return ::MsgWaitForMultipleObjects
(
1, // number of objects to wait for
(HANDLE *)&hThread, // the objects
false, // wait for any objects, not all
INFINITE, // no timeout
QS_ALLINPUT | // return as soon as there are any events
QS_ALLPOSTMESSAGE
);
}
WXDWORD wxGUIAppTraits::WaitForThread(WXHANDLE hThread, int flags)
{
// We only ever dispatch messages from the main thread and, additionally,
// even from the main thread we shouldn't wait for the message if we don't
// have a running event loop as we would never remove them from the message
// queue then and so we would enter an infinite loop as
// MsgWaitForMultipleObjects() keeps returning WAIT_OBJECT_0 + 1.
if ( flags == wxTHREAD_WAIT_YIELD && wxIsMainThread() )
{
wxMSWEventLoopBase* const
evtLoop = static_cast<wxMSWEventLoopBase *>(wxEventLoop::GetActive());
if ( evtLoop )
return evtLoop->MSWWaitForThread(hThread);
}
// Simple blocking wait.
return DoSimpleWaitForThread(hThread);
}
DWORD wxGUIAppTraits::WaitForThread(WXHANDLE hThread)
{
// if we don't have a running event loop, we shouldn't wait for the
// messages as we never remove them from the message queue and so we enter
// an infinite loop as MsgWaitForMultipleObjects() keeps returning
// WAIT_OBJECT_0 + 1
if ( !wxEventLoop::GetActive() )
return DoSimpleWaitForThread(hThread);
return ::MsgWaitForMultipleObjects
(
1, // number of objects to wait for
(HANDLE *)&hThread, // the objects
false, // wait for any objects, not all
INFINITE, // no timeout
QS_ALLINPUT | // return as soon as there are any events
QS_ALLPOSTMESSAGE
);
}
