AuroraMiddleware/glibc
1
0
Fork 0
mirror of https://sourceware.org/git/glibc.git synced 2024-12-22 19:00:07 +00:00
Code Issues Packages Projects Releases Wiki Activity

Replace __lll_add and __lll_test_and_set calls with atomic_exchange_and_add and atomic_exchange call respectively.

Browse Source
This commit is contained in:
Ulrich Drepper 2003-03-20 10:23:47 +00:00
parent f79466a8e9
commit 7793bf7fd7
1 changed files with 3 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
nptl/sysdeps/unix/sysv/linux/lowlevellock.c
View File

@ -30,7 +30,7 @@ __lll_lock_wait (int *futex, int val)
do
{
lll_futex_wait (futex, val + 1);
val = __lll_add (futex, 1);
val = atomic_exchange_and_add (futex, 1);
}
while (val != 0);
*futex = 2;
@ -70,7 +70,7 @@ __lll_timedlock_wait (int *futex, int val, const struct timespec *abstime)
if (lll_futex_timed_wait (futex, val + 1, &rt) == -ETIMEDOUT)
return ETIMEDOUT;
}
while ((val = __lll_add (futex, 1)) != 0);
while ((val = atomic_exchange_and_add (futex, 1)) != 0);
*futex = 2;
return 0;
@ -83,7 +83,7 @@ hidden_proto (__lll_timedlock_wait)
int
lll_unlock_wake_cb (int *futex)
{
int val = __lll_test_and_set (futex, 0);
int val = atomic_exchange (futex, 0);
if (__builtin_expect (val > 1, 0))
lll_futex_wake (futex, 1);