X-Git-Url: http://nsz.repo.hu/git/?a=blobdiff_plain;f=src%2Fthread%2F__wait.c;h=dc33c1a30992e6c04e4482cef8a2f8279d18262a;hb=d055e6a45a17673b8dd3ec16e786bb2fe1700dd5;hp=a1e47804b4416a8ed02e888ebd3757c43381661f;hpb=eca335fc0453d3680fd9f112574919e13fab31d2;p=musl

diff --git a/src/thread/__wait.c b/src/thread/__wait.c
index a1e47804..dc33c1a3 100644
--- 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)
 {
-	int spins=10000;
-	if (priv) priv = 128; priv=0;
-	while (spins--) {
+	int spins=100;
+	if (priv) priv = FUTEX_PRIVATE;
+	while (spins-- && (!waiters || !*waiters)) {
 		if (*addr==val) a_spin();
 		else return;
 	}
 	if (waiters) a_inc(waiters);
-	while (*addr==val)
-		__syscall(SYS_futex, 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);
 }