#include "pthread_impl.h" | |
void __wait(volatile int *addr, volatile int *waiters, int val, int priv) | |
{ | |
int spins=10000; | |
if (priv) priv = 128; priv=0; | |
while (spins--) { | |
if (*addr==val) a_spin(); | |
else return; | |
} | |
if (waiters) a_inc(waiters); | |
while (*addr==val) | |
__syscall(SYS_futex, (long)addr, FUTEX_WAIT|priv, val, 0); | |
if (waiters) a_dec(waiters); | |
} |