[haiku-bugs] Re: [Haiku] #5336: pthread_mutex_trylock() hangs
- From: "bonefish" <trac@xxxxxxxxxxxx>
- Date: Fri, 29 Jan 2010 16:30:03 -0000
#5336: pthread_mutex_trylock() hangs
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Reporter: kaliber | Owner: nobody
Type: bug | Status: new
Priority: normal | Milestone: R1
Component: System/POSIX | Version: R1/Development
Keywords: | Blockedby:
Platform: All | Blocking:
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Comment(by bonefish):
Confirmed. The pthread_mutex_trylock() implementation is incorrect. It
should not even touch the semaphore, but instead use atomic_test_and_set()
on the count. Moreover the kernel's thread_block_with_timeout_locked()
needs to check for an overflow in case B_TIMEOUT_REAL_TIME_BASE is set.
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Ticket URL: <http://dev.haiku-os.org/ticket/5336#comment:1>
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