| 04620a3cd7bdea0d1b421c8772ba3f06839bbe9c |
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08-Mar-2014 |
Elliott Hughes <enh@google.com> |
Fix pthread_detach for already-exited threads.
Change-Id: I2bf7f41234d93b226132a4c51705f4186f4961c3
Reported-by: Paresh Nakhe <pnakhe@codeaurora.org>
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| 0f020d18b138e24b1fe34074808e07ac412f35a4 |
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06-Jun-2013 |
msg555 <msg555@gmail.com> |
Handles spurious wake-ups in pthread_join()
Removed 'join_count' from pthread_internal_t and switched to using the flag
PTHREAD_ATTR_FLAG_JOINED to indicate if a thread is being joined. Combined with
a switch to a while loop in pthread_join, this fixes spurious wake-ups but
prevents a thread from being joined multiple times. This is fine for
two reasons:
1) The pthread_join specification allows for undefined behavior when multiple
threads try to join a single thread.
2) There is no thread safe way to allow multiple threads to join a single
thread with the pthread interface. The second thread calling pthread_join
could be pre-empted until the thread is destroyed and its handle reused for
a different thread. Therefore multi-join is always an error.
Bug: https://code.google.com/p/android/issues/detail?id=52255
Change-Id: I8b6784d47620ffdcdbfb14524e7402e21d46c5f7
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| 9d23e04c43dbb8480bea8be28b8a2f37423bec49 |
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16-Feb-2013 |
Elliott Hughes <enh@google.com> |
Fix pthreads functions that should return ESRCH.
imgtec pointed out that pthread_kill(3) was broken, but most of the
other functions that ought to return ESRCH for invalid/exited threads
were equally broken.
Change-Id: I96347f6195549aee0c72dc39063e6c5d06d2e01f
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