diff options
| author | kib <kib@FreeBSD.org> | 2016-02-28 17:52:33 +0000 |
|---|---|---|
| committer | kib <kib@FreeBSD.org> | 2016-02-28 17:52:33 +0000 |
| commit | e76eb4255b957aa73f6228dd8d525d1946e3707d (patch) | |
| tree | 93354adb0a612a635964c8498072087760a0f93b /lib/libthr/thread/thr_init.c | |
| parent | 800b1f3198ded0c65c024ea0cef1f44d4bc59fed (diff) | |
| download | FreeBSD-src-e76eb4255b957aa73f6228dd8d525d1946e3707d.zip FreeBSD-src-e76eb4255b957aa73f6228dd8d525d1946e3707d.tar.gz | |
Implement process-shared locks support for libthr.so.3, without
breaking the ABI. Special value is stored in the lock pointer to
indicate shared lock, and offline page in the shared memory is
allocated to store the actual lock.
Reviewed by: vangyzen (previous version)
Discussed with: deischen, emaste, jhb, rwatson,
Martin Simmons <martin@lispworks.com>
Tested by: pho
Sponsored by: The FreeBSD Foundation
Diffstat (limited to 'lib/libthr/thread/thr_init.c')
| -rw-r--r-- | lib/libthr/thread/thr_init.c | 14 |
1 files changed, 9 insertions, 5 deletions
diff --git a/lib/libthr/thread/thr_init.c b/lib/libthr/thread/thr_init.c index e0400e4..3c81299 100644 --- a/lib/libthr/thread/thr_init.c +++ b/lib/libthr/thread/thr_init.c @@ -91,13 +91,15 @@ struct pthread_attr _pthread_attr_default = { struct pthread_mutex_attr _pthread_mutexattr_default = { .m_type = PTHREAD_MUTEX_DEFAULT, .m_protocol = PTHREAD_PRIO_NONE, - .m_ceiling = 0 + .m_ceiling = 0, + .m_pshared = PTHREAD_PROCESS_PRIVATE, }; struct pthread_mutex_attr _pthread_mutexattr_adaptive_default = { .m_type = PTHREAD_MUTEX_ADAPTIVE_NP, .m_protocol = PTHREAD_PRIO_NONE, - .m_ceiling = 0 + .m_ceiling = 0, + .m_pshared = PTHREAD_PROCESS_PRIVATE, }; /* Default condition variable attributes: */ @@ -387,6 +389,7 @@ static void init_main_thread(struct pthread *thread) { struct sched_param sched_param; + int i; /* Setup the thread attributes. */ thr_self(&thread->tid); @@ -428,9 +431,9 @@ init_main_thread(struct pthread *thread) thread->cancel_enable = 1; thread->cancel_async = 0; - /* Initialize the mutex queue: */ - TAILQ_INIT(&thread->mutexq); - TAILQ_INIT(&thread->pp_mutexq); + /* Initialize the mutex queues */ + for (i = 0; i < TMQ_NITEMS; i++) + TAILQ_INIT(&thread->mq[i]); thread->state = PS_RUNNING; @@ -463,6 +466,7 @@ init_private(void) _thr_once_init(); _thr_spinlock_init(); _thr_list_init(); + __thr_pshared_init(); _thr_wake_addr_init(); _sleepq_init(); _single_thread = NULL; |
