diff options
| author | Rich Felker <dalias@aerifal.cx> | 2011-02-12 00:22:29 -0500 |
|---|---|---|
| committer | Rich Felker <dalias@aerifal.cx> | 2011-02-12 00:22:29 -0500 |
| commit | 0b44a0315b47dd8eced9f3b7f31580cf14bbfc01 (patch) | |
| tree | 6eaef0d8a720fa3da580de87b647fff796fe80b3 /src/thread/__timedwait.c | |
| download | musl-0b44a0315b47dd8eced9f3b7f31580cf14bbfc01.tar.gz musl-0b44a0315b47dd8eced9f3b7f31580cf14bbfc01.tar.xz musl-0b44a0315b47dd8eced9f3b7f31580cf14bbfc01.zip | |
initial check-in, version 0.5.0 v0.5.0
Diffstat (limited to 'src/thread/__timedwait.c')
| -rw-r--r-- | src/thread/__timedwait.c | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/src/thread/__timedwait.c b/src/thread/__timedwait.c new file mode 100644 index 00000000..354def2c --- /dev/null +++ b/src/thread/__timedwait.c @@ -0,0 +1,21 @@ +#include <time.h> +#include <errno.h> +#include "futex.h" +#define SYSCALL_RETURN_ERRNO +#include "syscall.h" +#include <stdio.h> +int __timedwait(volatile int *addr, int val, clockid_t clk, const struct timespec *at, int priv) +{ + 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; + return syscall4(__NR_futex, (long)addr, FUTEX_WAIT | priv, val, at ? (long)&to : 0); +} |