LATX, fix: bound final AOT exclusive wait#316
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Final AOT generation runs during process exit and may try to enter an exclusive section after other threads are already blocked in native/host code. In that case start_exclusive() can wait forever for CPUs that will not quiesce. Add start_exclusive_timeout() and use it only for the final AOT exit path. If the timeout expires, cancel the pending waiters, skip final AOT, and return without holding the exclusive section. Normal AOT generation continues to use the existing blocking start_exclusive() path. Signed-off-by: Wenqiang Wei <weiwenqiang@mail.ustc.edu.cn>
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Final AOT generation runs during process exit and may try to enter an exclusive section after other threads are already blocked in native/host code. In that case start_exclusive() can wait forever for CPUs that will not quiesce.
Add start_exclusive_timeout() and use it only for the final AOT exit path. If the timeout expires, cancel the pending waiters, skip final AOT, and return without holding the exclusive section. Normal AOT generation continues to use the existing blocking start_exclusive() path.