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#include <time.h> #include <errno.h> #include "futex.h" #include "syscall.h" int __timedwait_cp(volatile int *addr, int val, clockid_t clk, const struct timespec *at, int priv) { int r; struct timespec to; if (at) { clock_gettime(clk, &to); to.tv_sec = at->tv_sec - to.tv_sec; if ((to.tv_nsec = at->tv_nsec - to.tv_nsec) < 0) { to.tv_sec--; to.tv_nsec += 1000000000; } if (to.tv_sec < 0) return ETIMEDOUT; } if (priv) priv = 128; priv=0; r = -__syscall_cp(SYS_futex, (long)addr, FUTEX_WAIT | priv, val, at ? (long)&to : 0); if (r == ETIMEDOUT || r == EINTR) return r; return 0; } |