| Commit message (Collapse) | Author | Age | Files | Lines |
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Move the safety check performed by
_CORE_mutex_Check_dispatch_for_seize() out of the performance critical
path and generalize it. Blocking on a thread queue with an unexpected
thread dispatch disabled level is illegal in all system states.
Add the expected thread dispatch disable level (which may be 1 or 2
depending on the operation) to Thread_queue_Context and use it in
_Thread_queue_Enqueue_critical().
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Unify the status codes of the Classic and POSIX API to use the new enum
Status_Control. This eliminates the Thread_Control::Wait::timeout_code
field and the timeout parameter of _Thread_queue_Enqueue_critical() and
_MPCI_Send_request_packet(). It gets rid of the status code translation
tables and instead uses simple bit operations to get the status for a
particular API. This enables translation of status code constants at
compile time. Add _Thread_Wait_get_status() to avoid direct access of
thread internal data structures.
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Uniformly use *_Get() to get an object by identifier with a lock
context.
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Rework pthread_join() to use _Thread_Join().
Close #2402.
Update #2555.
Update #2626.
Close #2714.
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Remove the Thread_queue_Queue::operations field to reduce the size of
this structure. Add a thread queue operations parameter to the
_Thread_queue_First(), _Thread_queue_First_locked(),
_Thread_queue_Enqueue(), _Thread_queue_Dequeue() and
_Thread_queue_Flush() functions. This is a preparation patch to reduce
the size of several synchronization objects.
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Use a parameter for _Thread_queue_Enqueue() instead to reduce memory
usage.
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Move the complete thread queue enqueue procedure into
_Thread_queue_Enqueue_critical(). It is possible to use the thread
queue lock to protect state of the object embedding the thread queue.
This enables per object fine grained locking in the future.
Delete _Thread_queue_Enter_critical_section().
Update #2273.
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A thread join is twofold. There is one thread that exists and an
arbitrary number of threads that wait for the thread exit (one-to-many
relation). The exiting thread may want to wait for a thread that wants
to join its exit (STATES_WAITING_FOR_JOIN_AT_EXIT in
_POSIX_Thread_Exit()). On the other side we need a thread queue for all
the threads that wait for the exit of one particular thread
(STATES_WAITING_FOR_JOIN in pthread_join()).
Update #2035.
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Use a parameter for _Thread_queue_Enqueue() instead to reduce memory
usage.
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The function to change a thread priority was too complex. Simplify it
with a new scheduler operation. This increases the average case
performance due to the simplified logic. The interrupt disabled
critical section is a bit prolonged since now the extract, update and
enqueue steps are executed atomically. This should however not impact
the worst-case interrupt latency since at least for the Deterministic
Priority Scheduler this sequence can be carried out with a wee bit of
instructions and no loops.
Add _Scheduler_Change_priority() to replace the sequence of
- _Thread_Set_transient(),
- _Scheduler_Extract(),
- _Scheduler_Enqueue(), and
- _Scheduler_Enqueue_first().
Delete STATES_TRANSIENT, _States_Is_transient() and
_Thread_Set_transient() since this state is now superfluous.
With this change it is possible to get rid of the
SCHEDULER_SMP_NODE_IN_THE_AIR state. This considerably simplifies the
implementation of the new SMP locking protocols.
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Add thread parameter to _Thread_queue_Enqueue_with_handler() to avoid
access to global _Thread_Executing.
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Move implementation specific parts of tqdata.h, threadq.h and
threadq.inl into new header file threadqimpl.h. The threadq.h contains
now only the application visible API.
Delete tqdata.h.
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Move implementation specific parts of thread.h and thread.inl into new
header file threadimpl.h. The thread.h contains now only the
application visible API.
Remove superfluous header file includes from various files.
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Move implementation specific parts of pthread.h and pthread.inl into new
header file pthreadimpl.h. The pthread.h contains now only the
application visible API.
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Add and use _Objects_Put_without_thread_dispatch(). These two functions
pair with the _Objects_Get() function. This helps to introduce object
specific SMP locks to avoid lock contention.
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http://www.google-melange.com/gci/task/view/google/gci2012/7945218
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Script does what is expected and tries to do it as
smartly as possible.
+ remove occurrences of two blank comment lines
next to each other after Id string line removed.
+ remove entire comment blocks which only exited to
contain CVS Ids
+ If the processing left a blank line at the top of
a file, it was removed.
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PR 1855/cpukit
* posix/src/psignal.c, posix/src/pthread.c, posix/src/pthreadjoin.c:
Correct signal processing during pthread_join. We are supposed to
unblock the thread waiting on a pthread_join(), dispatch the signal
handler, account for it potentially overwriting errno, and then have
the thread return to blocking within pthread_join().
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PR 1867/cpukit
* posix/src/pthreadexit.c, posix/src/pthreadjoin.c: Correct
implementation of pthread_exit() and pthread_join() to support the
case where a thread is joinable but calls pthread_exit() before a
thread has attempted to join.
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* posix/src/pthread.c, posix/src/pthreadjoin.c: Revert accidental
commit.
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PR 1856/cpukit
* posix/src/pthread.c, posix/src/pthreadjoin.c,
score/src/rbtreeextract.c: Do not derefence NULL.
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PR 1759/cpukit
* posix/src/cancel.c, posix/src/pthreaddetach.c,
posix/src/pthreadequal.c, posix/src/pthreadgetschedparam.c,
posix/src/pthreadjoin.c, posix/src/pthreadkill.c,
posix/src/pthreadsetschedparam.c: Some POSIX pthread services did not
support using Classic API Task Ids.
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* posix/include/rtems/posix/mutex.h,
posix/include/rtems/posix/semaphore.h, posix/src/cancel.c,
posix/src/conddestroy.c, posix/src/condsignalsupp.c,
posix/src/condwaitsupp.c, posix/src/keydelete.c,
posix/src/keygetspecific.c, posix/src/keysetspecific.c,
posix/src/mqueueclose.c, posix/src/mqueuegetattr.c,
posix/src/mqueuenotify.c, posix/src/mqueuerecvsupp.c,
posix/src/mqueuesendsupp.c, posix/src/mqueuesetattr.c,
posix/src/mqueuetranslatereturncode.c, posix/src/mutexdestroy.c,
posix/src/mutexgetprioceiling.c, posix/src/mutexinit.c,
posix/src/mutexlocksupp.c, posix/src/mutexsetprioceiling.c,
posix/src/mutexunlock.c, posix/src/pbarrierdestroy.c,
posix/src/pbarriertranslatereturncode.c, posix/src/pbarrierwait.c,
posix/src/prwlockdestroy.c, posix/src/prwlockrdlock.c,
posix/src/prwlocktimedrdlock.c, posix/src/prwlocktimedwrlock.c,
posix/src/prwlocktranslatereturncode.c, posix/src/prwlocktryrdlock.c,
posix/src/prwlocktrywrlock.c, posix/src/prwlockunlock.c,
posix/src/prwlockwrlock.c, posix/src/pspindestroy.c,
posix/src/pspinlock.c, posix/src/pspinlocktranslatereturncode.c,
posix/src/pspintrylock.c, posix/src/pspinunlock.c,
posix/src/pthreaddetach.c, posix/src/pthreadequal.c,
posix/src/pthreadgetschedparam.c, posix/src/pthreadjoin.c,
posix/src/pthreadkill.c, posix/src/pthreadsetschedparam.c,
posix/src/ptimer1.c, posix/src/semaphorewaitsupp.c,
posix/src/semclose.c, posix/src/semdestroy.c,
posix/src/semgetvalue.c, posix/src/sempost.c, posix/src/types.c,
rtems/src/msgqtranslatereturncode.c, rtems/src/semobtain.c,
rtems/src/timerfireafter.c, score/include/rtems/system.h,
score/include/rtems/score/corebarrier.h,
score/include/rtems/score/coremsg.h,
score/include/rtems/score/coremutex.h,
score/include/rtems/score/coresem.h: Restructed to move the
OBJECTS_LOCAL case to the top of the switch statement and
eliminate the fall-through return of POSIX_BOTTOM_REACHED. These
changes produced simplier assembly code and allowed for complete
test coverage. Also applied some consistency to the functions
that translate the core status codes to POSIX status codes.
* posix/src/mutextranslatereturncode.c,
posix/src/semaphoretranslatereturncode.c: New files.
* posix/src/mutexfromcorestatus.c: Removed.
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* itron/src/can_wup.c, itron/src/chg_pri.c, itron/src/del_mbf.c,
itron/src/del_mbx.c, itron/src/del_sem.c, itron/src/del_tsk.c,
itron/src/frsm_tsk.c, itron/src/ref_mbf.c, itron/src/ref_mbx.c,
itron/src/ref_sem.c, itron/src/ref_tsk.c, itron/src/rel_wai.c,
itron/src/rsm_tsk.c, itron/src/sig_sem.c, itron/src/snd_mbx.c,
itron/src/sta_tsk.c, itron/src/sus_tsk.c, itron/src/ter_tsk.c,
itron/src/trcv_mbf.c, itron/src/trcv_mbx.c, itron/src/tsnd_mbf.c,
itron/src/twai_sem.c, posix/src/cancel.c, posix/src/conddestroy.c,
posix/src/condinit.c, posix/src/condsignalsupp.c,
posix/src/condwaitsupp.c, posix/src/keydelete.c,
posix/src/keygetspecific.c, posix/src/keysetspecific.c,
posix/src/mqueueclose.c, posix/src/mqueuegetattr.c,
posix/src/mqueuenotify.c, posix/src/mqueuerecvsupp.c,
posix/src/mqueuesendsupp.c, posix/src/mqueuesetattr.c,
posix/src/mutexdestroy.c, posix/src/mutexgetprioceiling.c,
posix/src/mutexinit.c, posix/src/mutexlocksupp.c,
posix/src/mutexsetprioceiling.c, posix/src/mutexunlock.c,
posix/src/pbarrierdestroy.c, posix/src/pbarrierwait.c,
posix/src/prwlockdestroy.c, posix/src/prwlockrdlock.c,
posix/src/prwlocktimedrdlock.c, posix/src/prwlocktimedwrlock.c,
posix/src/prwlocktryrdlock.c, posix/src/prwlocktrywrlock.c,
posix/src/prwlockunlock.c, posix/src/prwlockwrlock.c,
posix/src/pspindestroy.c, posix/src/pspinlock.c,
posix/src/pspintrylock.c, posix/src/pspinunlock.c,
posix/src/pthreaddetach.c, posix/src/pthreadequal.c,
posix/src/pthreadgetschedparam.c, posix/src/pthreadjoin.c,
posix/src/pthreadkill.c, posix/src/pthreadsetschedparam.c,
posix/src/ptimer1.c, posix/src/semaphorewaitsupp.c,
posix/src/semclose.c, posix/src/semdestroy.c,
posix/src/semgetvalue.c, posix/src/sempost.c, posix/src/types.c,
rtems/src/barrierdelete.c, rtems/src/barrierrelease.c,
rtems/src/barrierwait.c, rtems/src/dpmemdelete.c,
rtems/src/dpmemexternal2internal.c,
rtems/src/dpmeminternal2external.c, rtems/src/eventsend.c,
rtems/src/eventtimeout.c, rtems/src/msgqbroadcast.c,
rtems/src/msgqdelete.c, rtems/src/msgqflush.c,
rtems/src/msgqgetnumberpending.c, rtems/src/msgqreceive.c,
rtems/src/msgqsend.c, rtems/src/msgqurgent.c, rtems/src/partdelete.c,
rtems/src/partgetbuffer.c, rtems/src/partreturnbuffer.c,
rtems/src/ratemoncancel.c, rtems/src/ratemondelete.c,
rtems/src/ratemongetstatistics.c, rtems/src/ratemongetstatus.c,
rtems/src/ratemonperiod.c, rtems/src/ratemonresetstatistics.c,
rtems/src/ratemontimeout.c, rtems/src/regiondelete.c,
rtems/src/regionextend.c, rtems/src/regiongetfreeinfo.c,
rtems/src/regiongetinfo.c, rtems/src/regiongetsegment.c,
rtems/src/regiongetsegmentsize.c, rtems/src/regionresizesegment.c,
rtems/src/regionreturnsegment.c, rtems/src/semdelete.c,
rtems/src/semflush.c, rtems/src/semobtain.c, rtems/src/semrelease.c,
rtems/src/signalsend.c, rtems/src/taskdelete.c,
rtems/src/taskgetnote.c, rtems/src/taskissuspended.c,
rtems/src/taskrestart.c, rtems/src/taskresume.c,
rtems/src/tasksetnote.c, rtems/src/tasksetpriority.c,
rtems/src/taskstart.c, rtems/src/tasksuspend.c,
rtems/src/taskvariableadd.c, rtems/src/taskvariabledelete.c,
rtems/src/taskvariableget.c, rtems/src/timercancel.c,
rtems/src/timerdelete.c, rtems/src/timerfireafter.c,
rtems/src/timerfirewhen.c, rtems/src/timergetinfo.c,
rtems/src/timerreset.c, rtems/src/timerserverfireafter.c,
rtems/src/timerserverfirewhen.c, sapi/src/extensiondelete.c,
score/include/rtems/score/object.h, score/src/corerwlocktimeout.c,
score/src/mpci.c, score/src/objectgetnameasstring.c,
score/src/threaddelayended.c, score/src/threadqtimeout.c: When
multiprocessing is disabled, do not even allow the constant
OBJECTS_REMOTE to appear in the source. Even at -O2, the presence of
a case OBJECTS_REMOTE in each id->pointer _Objects_Get switch results
in the generation of binary code which can NOT be reached.
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* src/cancelrun.c, src/pthreadexit.c, src/pthreadjoin.c,
src/sigtimedwait.c: Remove unnecessary typecasts in assignments to
thread->Wait.return_argument.
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* include/rtems/posix/cond.h, include/rtems/posix/condmp.h,
include/rtems/posix/config.h, include/rtems/posix/intr.h,
include/rtems/posix/key.h, include/rtems/posix/mqueue.h,
include/rtems/posix/mqueuemp.h, include/rtems/posix/mutex.h,
include/rtems/posix/mutexmp.h, include/rtems/posix/posixapi.h,
include/rtems/posix/pthread.h, include/rtems/posix/pthreadmp.h,
include/rtems/posix/ptimer.h, include/rtems/posix/semaphore.h,
include/rtems/posix/semaphoremp.h, inline/rtems/posix/cond.inl,
inline/rtems/posix/intr.inl, inline/rtems/posix/key.inl,
inline/rtems/posix/mqueue.inl, inline/rtems/posix/mutex.inl,
inline/rtems/posix/pthread.inl, inline/rtems/posix/semaphore.inl,
inline/rtems/posix/timer.inl, macros/rtems/posix/cond.inl,
macros/rtems/posix/intr.inl, macros/rtems/posix/key.inl,
macros/rtems/posix/mqueue.inl, macros/rtems/posix/mutex.inl,
macros/rtems/posix/pthread.inl, macros/rtems/posix/semaphore.inl,
macros/rtems/posix/timer.inl, src/alarm.c, src/kill.c,
src/killinfo.c, src/mqueuetranslatereturncode.c, src/pause.c,
src/pthreadattrdestroy.c, src/pthreadattrgetdetachstate.c,
src/pthreadattrgetinheritsched.c, src/pthreadattrgetschedparam.c,
src/pthreadattrgetschedpolicy.c, src/pthreadattrgetscope.c,
src/pthreadattrgetstackaddr.c, src/pthreadattrgetstacksize.c,
src/pthreadattrinit.c, src/pthreadattrsetdetachstate.c,
src/pthreadattrsetinheritsched.c, src/pthreadattrsetschedparam.c,
src/pthreadattrsetschedpolicy.c, src/pthreadattrsetscope.c,
src/pthreadattrsetstackaddr.c, src/pthreadattrsetstacksize.c,
src/pthreadcreate.c, src/pthreaddetach.c, src/pthreadequal.c,
src/pthreadexit.c, src/pthreadgetcpuclockid.c,
src/pthreadgetcputime.c, src/pthreadgetschedparam.c,
src/pthreadjoin.c, src/pthreadkill.c, src/pthreadonce.c,
src/pthreadself.c, src/pthreadsetcputime.c,
src/pthreadsetschedparam.c, src/pthreadsigmask.c, src/sigaction.c,
src/sigaddset.c, src/sigdelset.c, src/sigemptyset.c,
src/sigfillset.c, src/sigismember.c, src/signal_2.c,
src/sigpending.c, src/sigprocmask.c, src/sigqueue.c,
src/sigsuspend.c, src/sigtimedwait.c, src/sigwait.c,
src/sigwaitinfo.c, src/ualarm.c: URL for license changed.
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* configure.in: Add src/config.h
* src/Makefile.am: Add INCLUDES += -I. to pickup config.h
* src/.cvsignore: Add config.h and stamp-h
* src/*.c: Add config.h support.
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