On Wed, Aug 01, 2012 at 08:44:20AM -0700, Thomas DiModica wrote: > Most of what I understand is from what Marcus has to say in this thread here: > http://lists.gnu.org/archive/html/hurd-devel/2002-07/msg00010.html
That link explains the problem very well. It's better to keep the current calls to hurd_condition_wait (i.e. through plain error handling) than try to replace that with complicated cleanup callbacks. > My understanding is that hurd_condition_wait is used with hurd_thread_cancel > in libc, as libc uses a different cancellation semantics than is provided by > POSIX in pthreads. No, the semantics are the same. The internal implementation may slightly differ, I haven't looked in detail. The point is how to handle cancellation from a cancelled thread, not how to mark a thread as being cancelled. The hurd_thread_cancel function merely exists because there isn't any in the cthreads package. You should be able to replace it with pthread_cancel without further effort. -- Richard Braun
