diff options
| author | Ulrich Drepper <drepper@redhat.com> | 2000-07-18 17:18:38 +0000 |
|---|---|---|
| committer | Ulrich Drepper <drepper@redhat.com> | 2000-07-18 17:18:38 +0000 |
| commit | e6574c9ca263afb7d408dd5ebf09ad8cb0178469 (patch) | |
| tree | 8c9059f8900b7ff3c761f462d534f20c89930564 /linuxthreads/spinlock.c | |
| parent | e862aada834365440fc500cb463f2c62edb6142f (diff) | |
| download | glibc-e6574c9ca263afb7d408dd5ebf09ad8cb0178469.zip glibc-e6574c9ca263afb7d408dd5ebf09ad8cb0178469.tar.gz glibc-e6574c9ca263afb7d408dd5ebf09ad8cb0178469.tar.bz2 | |
Update.
2000-07-18 Kaz Kylheku <kaz@ashi.footprints.net>
* spinlock.c (__pthread_alt_lock, __pthread_alt_timedlock): Fixed
bug whereby thr field of waitnode structure would not be correctly
set unless a null self pointer is passed to the functions.
Eliminated redundant calls to thread_self().
Diffstat (limited to 'linuxthreads/spinlock.c')
| -rw-r--r-- | linuxthreads/spinlock.c | 11 |
1 files changed, 6 insertions, 5 deletions
diff --git a/linuxthreads/spinlock.c b/linuxthreads/spinlock.c index 38d6b8e..43190a2 100644 --- a/linuxthreads/spinlock.c +++ b/linuxthreads/spinlock.c @@ -345,7 +345,7 @@ static void wait_node_dequeue(struct wait_node **pp_head, if (pp_node == pp_head) { long oldvalue = (long) p_node; long newvalue = (long) p_node->next; - + if (__compare_and_swap((long *) pp_node, oldvalue, newvalue)) return; @@ -388,7 +388,7 @@ void __pthread_alt_lock(struct _pthread_fastlock * lock, wait_node.abandoned = 0; wait_node.next = (struct wait_node *) lock->__status; - wait_node.thr = self = thread_self(); + wait_node.thr = self; suspend_needed = 1; } @@ -408,7 +408,8 @@ void __pthread_alt_lock(struct _pthread_fastlock * lock, newstatus = 1; } else { if (self == NULL) - wait_node.thr = self = thread_self(); + self = thread_self(); + wait_node.thr = self; newstatus = (long) &wait_node; } wait_node.abandoned = 0; @@ -461,7 +462,7 @@ int __pthread_alt_timedlock(struct _pthread_fastlock * lock, p_wait_node->abandoned = 0; p_wait_node->next = (struct wait_node *) lock->__status; - p_wait_node->thr = self = thread_self(); + p_wait_node->thr = self; } WRITE_MEMORY_BARRIER(); @@ -478,7 +479,7 @@ int __pthread_alt_timedlock(struct _pthread_fastlock * lock, newstatus = 1; } else { if (self == NULL) - p_wait_node->thr = self = thread_self(); + p_wait_node->thr = self; newstatus = (long) p_wait_node; } p_wait_node->abandoned = 0; |