[haiku-bugs] Re: [Haiku] #5336: pthread_mutex_trylock() hangs
- From: "stippi" <trac@xxxxxxxxxxxx>
- Date: Mon, 08 Mar 2010 10:40:19 -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 stippi):
I've looked into this problem a bit, but I am not quite sure why the
pthread_mutex_trylock() implementation is the problem (also from talking
to Axel). I understand that by doing what it does, it potentially converts
a benaphore style mutex into a semaphore based one. Is the hanging problem
then in the kernel implementation with the 0 absolute timeout? If
pthread_mutex_trylock() only touches the count, how would it work when the
mutex has alreasy been converted to be semaphore based?
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Ticket URL: <http://dev.haiku-os.org/ticket/5336#comment:2>
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