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Diffstat (limited to 'cpukit/ChangeLog')
| -rw-r--r-- | cpukit/ChangeLog | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/cpukit/ChangeLog b/cpukit/ChangeLog index 5fa3751e55..856336a87f 100644 --- a/cpukit/ChangeLog +++ b/cpukit/ChangeLog @@ -1,3 +1,43 @@ +2008-07-18 Joel Sherrill <joel.sherrill@oarcorp.com> + + PR 1291/cpukit + * itron/inline/rtems/itron/semaphore.inl, itron/src/twai_sem.c, + posix/include/mqueue.h, posix/include/rtems/posix/mqueue.h, + posix/include/rtems/posix/semaphore.h, + posix/include/rtems/posix/time.h, posix/src/condtimedwait.c, + posix/src/mqueuereceive.c, posix/src/mqueuerecvsupp.c, + posix/src/mqueuesend.c, posix/src/mqueuesendsupp.c, + posix/src/mqueuetimedreceive.c, posix/src/mqueuetimedsend.c, + posix/src/mutextimedlock.c, posix/src/mutextranslatereturncode.c, + posix/src/posixtimespecabsolutetimeout.c, + posix/src/prwlocktimedrdlock.c, posix/src/prwlocktimedwrlock.c, + posix/src/semaphoretranslatereturncode.c, + posix/src/semaphorewaitsupp.c, posix/src/semtimedwait.c, + posix/src/semtrywait.c, posix/src/semwait.c, + posix/src/sigtimedwait.c, posix/src/timersettime.c, + posix/src/ualarm.c, rtems/src/semobtain.c, + rtems/src/semtranslatereturncode.c, + score/include/rtems/score/coremutex.h, + score/include/rtems/score/coresem.h, score/src/coresemseize.c: This + patch addresses issues on implementation of the timeout on the + following POSIX services. Some of these services incorrectly took a + timeout as a relative time. Others would compute a 0 delta to timeout + if the absolute time and the current time were equal and thus + incorrectly block the caller forever. The root of the confusion is + that POSIX specifies that if the timeout is incorrect (e.g. in the + past, is now, or is numerically invalid), that it does not matter if + the call would succeed without blocking. This is in contrast to RTEMS + programming style where all errors are checked before any critical + sections are entered. This fix implemented a more uniform way of + handling POSIX absolute time timeouts. + + pthread_cond_timedwait - could block forever + + mq_timedreceive - used relative not absolute time + + mq_timedsend - used relative not absolute time + + pthread_mutex_timedlock - used relative not absolute time + + pthread_rwlock_timedrdlock- used relative not absolute time + + pthread_rwlock_timedwrlock- used relative not absolute time + + sem_timedwait - could block forever + 2008-07-17 Joel Sherrill <joel.sherrill@oarcorp.com> * libmisc/monitor/mon-monitor.c, libmisc/monitor/mon-object.c, |