projects
/
musl
/ blobdiff
commit
grep
author
committer
pickaxe
?
search:
re
summary
|
shortlog
|
log
|
commit
|
commitdiff
|
tree
raw
|
inline
| side by side
optimize spinlock spin
[musl]
/
src
/
thread
/
pthread_mutex_unlock.c
diff --git
a/src/thread/pthread_mutex_unlock.c
b/src/thread/pthread_mutex_unlock.c
index
3733788
..
67aa7ba
100644
(file)
--- a/
src/thread/pthread_mutex_unlock.c
+++ b/
src/thread/pthread_mutex_unlock.c
@@
-2,14
+2,23
@@
int pthread_mutex_unlock(pthread_mutex_t *m)
{
int pthread_mutex_unlock(pthread_mutex_t *m)
{
+ pthread_t self;
+
if (m->_m_type != PTHREAD_MUTEX_NORMAL) {
if (m->_m_type != PTHREAD_MUTEX_NORMAL) {
- if (!m->_m_lock || m->_m_lock != __pthread_self()->tid)
+ self = __pthread_self();
+ if ((m->_m_lock&0x1fffffff) != self->tid)
return EPERM;
return EPERM;
- if (
m->_m_type
== PTHREAD_MUTEX_RECURSIVE && --m->_m_count)
+ if (
(m->_m_type&3)
== PTHREAD_MUTEX_RECURSIVE && --m->_m_count)
return 0;
return 0;
+ if (m->_m_type >= 4) {
+ self->robust_list.pending = &m->_m_next;
+ *(void **)m->_m_prev = m->_m_next;
+ if (m->_m_next) ((void **)m->_m_next)[-1] = m->_m_prev;
+ }
}
m->_m_lock = 0;
if (m->_m_waiters) __wake(&m->_m_lock, 1, 0);
}
m->_m_lock = 0;
if (m->_m_waiters) __wake(&m->_m_lock, 1, 0);
+ if (m->_m_type >= 4) self->robust_list.pending = 0;
return 0;
}
return 0;
}