Iwan Budi Kusnanto wrote: > Hello all > why rt_sem_p does not have behaviour like down_interruptible (that > receive a signal while being blocked on a semaphore to give up the > "down"/"p" operation).Is that a bad design? > sem_wait (posix skin)have behaviour like that.
rt_sem_p() does have the desired property. If you observed anything different in practice, it would be a bug and we would be happy to hear more details (used versions, testcase code, etc.). Just note that signal delivery breaks the determinism of the target application. > > In what situation we must use posix skin? > In what situation we must use native skin? There are no technical reasons to pick any of them, it's purely a design question of your application (/me being in hurry and can't go into details ATM). Jan
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