[wasi-libc.git] / libc-top-half / musl / src / time / clock_settime.c

#include <time.h>
#include <errno.h>
#include "syscall.h"

#define IS32BIT(x) !((x)+0x80000000ULL>>32)

int clock_settime(clockid_t clk, const struct timespec *ts)
{
#ifdef SYS_clock_settime64
	time_t s = ts->tv_sec;
	long ns = ts->tv_nsec;
	int r = -ENOSYS;
	if (SYS_clock_settime == SYS_clock_settime64 || !IS32BIT(s))
		r = __syscall(SYS_clock_settime64, clk,
			((long long[]){s, ns}));
	if (SYS_clock_settime == SYS_clock_settime64 || r!=-ENOSYS)
		return __syscall_ret(r);
	if (!IS32BIT(s))
		return __syscall_ret(-ENOTSUP);
	return syscall(SYS_clock_settime, clk, ((long[]){s, ns}));
#else
	return syscall(SYS_clock_settime, clk, ts);
#endif
}
Commit	Line	Data
320054e8	1	#include <time.h>
79a9b408	2	#include <errno.h>
320054e8 DG	3	#include "syscall.h"
320054e8 DG	4
79a9b408 DG	5	#define IS32BIT(x) !((x)+0x80000000ULL>>32)
79a9b408 DG	6
320054e8 DG	7	int clock_settime(clockid_t clk, const struct timespec *ts)
320054e8 DG	8	{
79a9b408 DG	9	#ifdef SYS_clock_settime64
	10	time_t s = ts->tv_sec;
	11	long ns = ts->tv_nsec;
	12	int r = -ENOSYS;
	13	if (SYS_clock_settime == SYS_clock_settime64 \|\| !IS32BIT(s))
	14	r = __syscall(SYS_clock_settime64, clk,
	15	((long long[]){s, ns}));
	16	if (SYS_clock_settime == SYS_clock_settime64 \|\| r!=-ENOSYS)
	17	return __syscall_ret(r);
	18	if (!IS32BIT(s))
	19	return __syscall_ret(-ENOTSUP);
	20	return syscall(SYS_clock_settime, clk, ((long[]){s, ns}));
	21	#else
320054e8	22	return syscall(SYS_clock_settime, clk, ts);
79a9b408	23	#endif
320054e8	24	}