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Allow wakeup mutex to be used in trap context. (#13684)

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Samuel Williams 2025-06-24 14:55:07 +09:00 committed by GitHub
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thread.c
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@ -2847,6 +2847,7 @@ rb_thread_io_close_interrupt(struct rb_io *io)
// This is used to ensure the correct execution context is woken up after the blocking operation is interrupted:
io->wakeup_mutex = rb_mutex_new();
rb_mutex_allow_trap(io->wakeup_mutex, 1);
// We need to use a mutex here as entering the fiber scheduler may cause a context switch:
VALUE result = rb_mutex_synchronize(io->wakeup_mutex, thread_io_close_notify_all, (VALUE)io);