fluencelabs/musl
1
0
Fork 0
mirror of https://github.com/fluencelabs/musl synced 2025-06-10 21:41:33 +00:00
Code Issues Projects Releases Wiki Activity

avoid function call to pthread_self in mutex unlock

Browse Source 
if the mutex was previously locked, we can assume pthread_self was
already called at the time of locking, and thus that the thread
pointer is initialized.
This commit is contained in:
Rich Felker
2011-03-17 13:35:08 -04:00
parent 93cc986ab3
commit 18c7ea8055
1 changed files with 1 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
src/thread/pthread_mutex_unlock.c
View File

@ -3,7 +3,7 @@
int pthread_mutex_unlock(pthread_mutex_t *m)
{
if (m->_m_type != PTHREAD_MUTEX_NORMAL) {
if (m->_m_lock != pthread_self()->tid)
if (!m->_m_lock || m->_m_lock != __pthread_self()->tid)
return EPERM;
if (m->_m_type == PTHREAD_MUTEX_RECURSIVE && --m->_m_count)
return 0;