WinRT: Use native wait methods instead of std::thread's sleep_for

sleep_for appears to be unreliable (resulting in infinite waits) when
used in a thread which is also using native waiting methods. This is
also a step in the direction of eliminating std::thread's usage in WinRT.

Change-Id: I58bc4bf9ada25de247849333ef925964676b7239
Reviewed-by: Oliver Wolff <oliver.wolff@digia.com>

1 files changed, 4 insertions, 4 deletions

diff --git a/src/corelib/thread/qthread_win.cpp b/src/corelib/thread/qthread_win.cpp
index db5c13157c..a12636778e 100644
--- a/src/corelib/thread/qthread_win.cpp
+++ b/src/corelib/thread/qthread_win.cpp
@@ -504,22 +504,22 @@ void QThread::usleep(unsigned long usecs)
 
 void QThread::yieldCurrentThread()
 {
-    std::this_thread::yield();
+    msleep(1);
 }
 
 void QThread::sleep(unsigned long secs)
 {
-    std::this_thread::sleep_for(std::chrono::seconds(secs));
+    msleep(secs * 1000);
 }
 
 void QThread::msleep(unsigned long msecs)
 {
-    std::this_thread::sleep_for(std::chrono::milliseconds(msecs));
+    WaitForSingleObjectEx(GetCurrentThread(), msecs, FALSE);
 }
 
 void QThread::usleep(unsigned long usecs)
 {
-    std::this_thread::sleep_for(std::chrono::microseconds(usecs));
+    msleep((usecs / 1000) + 1);
 }
 #endif // Q_OS_WINRT