| Цитата |
| Thread synchronization is tricky because waiting on threads to exit in DllMain can cause a deadlock. For example, DLL A holds the loader lock. It signals thread T to exit and waits for the thread to exit. Thread T exits and the loader tries to acquire the loader lock to call into DLL A’s DllMain with DLL_THREAD_DETACH. This causes a deadlock. To minimize the risk of a deadlock: DLL A gets a DLL_THREAD_DETACH message in its DllMain and sets an event for thread T, signaling it to exit. Thread T finishes its current task, brings itself to a consistent state, signals DLL A, and waits infinitely. Note that the consistency-checking routines should follow the same restrictions as DllMain to avoid deadlocking. DLL A terminates T, knowing that it is in a consistent state. |
Как можно отдать потоку команду на завершение из DllMain по сообщению DLL_THREAD_DETACH, если эту самую DllMain с этим сообщением вызывает сам поток и уже после выхода из основной процедуры? Что они имели ввиду?
