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Fix deadlock waiting for Python task to end at end of program

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This commit is contained in:
rdb 2016-06-12 12:04:03 +02:00
parent ba919b0948
commit 1974b3e692
2 changed files with 5 additions and 2 deletions
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3
panda/src/display/graphicsEngine.cxx
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@ -638,6 +638,9 @@ remove_all_windows() {
// And, hey, let's stop the vertex paging threads, if any.
VertexDataPage::stop_threads();
// Stopping the tasks means we have to release the Python GIL while
// this method runs (hence it is marked BLOCKING), so that any
// Python tasks on other threads won't deadlock grabbing the GIL.
AsyncTaskManager::get_global_ptr()->stop_threads();
#ifdef DO_PSTATS

4
panda/src/display/graphicsEngine.h
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@ -58,7 +58,7 @@ class Texture;
class EXPCL_PANDA_DISPLAY GraphicsEngine : public ReferenceCount {
PUBLISHED:
GraphicsEngine(Pipeline *pipeline = NULL);
~GraphicsEngine();
BLOCKING ~GraphicsEngine();
void set_threading_model(const GraphicsThreadingModel &threading_model);
GraphicsThreadingModel get_threading_model() const;
@ -94,7 +94,7 @@ PUBLISHED:
bool add_window(GraphicsOutput *window, int sort);
bool remove_window(GraphicsOutput *window);
void remove_all_windows();
BLOCKING void remove_all_windows();
void reset_all_windows(bool swapchain);
bool is_empty() const;