ntdll: Yield during PulseEvent().

May help with zfigura/wine#10, although the real fix there is just not to use esync.
kakra · Mar 1, 2019 · 2c270b2 · 2c270b2
1 parent 3963946
commit 2c270b2
Showing 1 changed file with 5 additions and 0 deletions.
diff --git a/dlls/ntdll/esync.c b/dlls/ntdll/esync.c
@@ -627,6 +627,11 @@ NTSTATUS esync_pulse_event( HANDLE handle )
      * used (and publicly deprecated). */
     if (write( obj->fd, &value, sizeof(value) ) == -1)
         return FILE_GetNtStatus();
+
+    /* Try to give other threads a chance to wake up. Hopefully erring on this
+     * side is the better thing to do... */
+    NtYieldExecution();
+
     read( obj->fd, &value, sizeof(value) );
 
     return STATUS_SUCCESS;