18 ContextManager manager;  variable
39   std::shared_lock lock(manager.contextLookupMutex);  in ContextGet()
40   auto iter = manager.contextMap.find(id);  in ContextGet()
42   if (iter == manager.contextMap.end() || iter->second.ctx == nullptr) {  in ContextGet()
50   if (manager.nextId >= std::numeric_limits<EXGLContextId>::max()) {  in ContextCreate()
55   std::unique_lock lock = getUniqueLockSafely(manager.contextLookupMutex);  in ContextCreate()
56   EXGLContextId ctxId = manager.nextId++;  in ContextCreate()
57   if (manager.contextMap.find(ctxId) != manager.contextMap.end()) {  in ContextCreate()
61   manager.contextMap[ctxId].ctx = new EXGLContext(ctxId);  in ContextCreate()
67     std::shared_lock lock(manager.contextLookupMutex);  in ContextDestroy()
69     auto iter = manager.contextMap.find(id);  in ContextDestroy()
70     if (iter != manager.contextMap.end()) {  in ContextDestroy()
77   std::unique_lock lock = getUniqueLockSafely(manager.contextLookupMutex);  in ContextDestroy()
78   auto iter = manager.contextMap.find(id);  in ContextDestroy()
79   if (iter != manager.contextMap.end()) {  in ContextDestroy()
80     manager.contextMap.erase(iter);  in ContextDestroy()