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display: lock GraphicsEngine mutex in remove_all_windows()

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rdb 2018-01-17 19:46:11 +01:00
parent bfd5fa56fa
commit 4c4288f491
1 changed files with 2 additions and 0 deletions
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2
panda/src/display/graphicsEngine.cxx
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@ -583,6 +583,8 @@ void GraphicsEngine::
remove_all_windows() {
Thread *current_thread = Thread::get_current_thread();
ReMutexHolder holder(_lock, current_thread);
// Let's move the _windows vector into a local copy first, and walk through
// that local copy, just in case someone we call during the loop attempts to
// modify _windows. I don't know what code would be doing this, but it