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- /*
- * clock_getres() for uClibc
- *
- * Copyright (C) 2005 by Peter Kjellerstedt <pkj@axis.com>
- * Copyright (C) 2000-2006 Erik Andersen <andersen@uclibc.org>
- *
- * Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball.
- */
- #include <sys/syscall.h>
- #include <time.h>
- #ifdef __NR_clock_getres
- _syscall2(int, clock_getres, clockid_t, clock_id, struct timespec*, res)
- #else
- # include <unistd.h>
- int clock_getres(clockid_t clock_id, struct timespec* res)
- {
- int retval = -1;
- switch (clock_id) {
- case CLOCK_REALTIME:
- if (res) {
- long clk_tck;
- if ((clk_tck = sysconf(_SC_CLK_TCK)) < 0)
- clk_tck = 100;
- res->tv_sec = 0;
- res->tv_nsec = 1000000000 / clk_tck;
- }
- retval = 0;
- break;
- default:
- errno = EINVAL;
- break;
- }
- return retval;
- }
- #endif
- libc_hidden_def(clock_getres)
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