I haven't done much work on the sem* functions to date, other than keeping the functional.
Patches, as always, gratefully accepted. Post daemon merge I can do a review of the sem* functions. The problem should _not_ be endemic in the pthreads code, as I rewrote nearly all the pthread* functions from the P1003.1 draft spec. Rob === ----- Original Message ----- From: "Christopher Faylor" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Sent: Tuesday, February 26, 2002 5:13 PM Subject: Re: sem_trywait returns EAGAIN (rather than returning -1 and setting errno) > On Mon, Feb 25, 2002 at 09:31:41PM -0500, Andrew T. Schnable wrote: > >I was doing some pthreads/semaphore work and I tracked down a problem > >in my code to a bug in sem_trywait. Posix sem_trywait is defined as > >returning -1 and setting errno to EAGAIN if the semaphore would have > >blocked. The cygwin implementation returns EAGAIN an leaves errno > >unchanged. > > > >Has anyone else encountered this problem and provided a fix? > > Hmm. Unless I am missing something, it looks like this problem is > prevalent in the pthreads code. It makes me think that maybe the > author meant to catch these kinds of things in the interface between > the __pthread/pthread calls. > > Robert, can you explain what's going on here? > > cgf -- Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple Bug reporting: http://cygwin.com/bugs.html Documentation: http://cygwin.com/docs.html FAQ: http://cygwin.com/faq/
