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cuserid: don't return truncated results
[musl]
/
src
/
thread
/
__wait.c
diff --git
a/src/thread/__wait.c
b/src/thread/__wait.c
index
b0969bb
..
dc33c1a
100644
(file)
--- a/
src/thread/__wait.c
+++ b/
src/thread/__wait.c
@@
-2,14
+2,16
@@
void __wait(volatile int *addr, volatile int *waiters, int val, int priv)
{
void __wait(volatile int *addr, volatile int *waiters, int val, int priv)
{
- int spins=
500
00;
- if (priv) priv =
128; priv=0
;
- while (spins--) {
+ int spins=
1
00;
+ if (priv) priv =
FUTEX_PRIVATE
;
+ while (spins--
&& (!waiters || !*waiters)
) {
if (*addr==val) a_spin();
else return;
}
if (waiters) a_inc(waiters);
if (*addr==val) a_spin();
else return;
}
if (waiters) a_inc(waiters);
- while (*addr==val)
- __syscall(__NR_futex, (long)addr, FUTEX_WAIT|priv, val, 0);
+ while (*addr==val) {
+ __syscall(SYS_futex, addr, FUTEX_WAIT|priv, val, 0) != -ENOSYS
+ || __syscall(SYS_futex, addr, FUTEX_WAIT, val, 0);
+ }
if (waiters) a_dec(waiters);
}
if (waiters) a_dec(waiters);
}