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author | Andreas Baumann <mail@andreasbaumann.cc> | 2015-01-03 13:58:15 +0100 |
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committer | Andreas Baumann <mail@andreasbaumann.cc> | 2015-01-03 13:58:15 +0100 |
commit | 4aca87515a5083ae0e31ce3177189fd43b6d05ac (patch) | |
tree | 7b1d9a31393ca090757dc6f0d3859b4fcd93f271 /release/src/router/busybox/libbb/time.c | |
parent | 008d0be72b2f160382c6e880765e96b64a050c65 (diff) | |
download | tomato-4aca87515a5083ae0e31ce3177189fd43b6d05ac.tar.gz tomato-4aca87515a5083ae0e31ce3177189fd43b6d05ac.tar.bz2 |
patch to Vanilla Tomato 1.28
Diffstat (limited to 'release/src/router/busybox/libbb/time.c')
-rw-r--r-- | release/src/router/busybox/libbb/time.c | 66 |
1 files changed, 66 insertions, 0 deletions
diff --git a/release/src/router/busybox/libbb/time.c b/release/src/router/busybox/libbb/time.c new file mode 100644 index 00000000..850ac154 --- /dev/null +++ b/release/src/router/busybox/libbb/time.c @@ -0,0 +1,66 @@ +/* vi: set sw=4 ts=4: */ +/* + * Utility routines. + * + * Copyright (C) 2007 Denys Vlasenko + * + * Licensed under GPL version 2, see file LICENSE in this tarball for details. + */ + +#include "libbb.h" + +#if ENABLE_MONOTONIC_SYSCALL + +#include <sys/syscall.h> +/* Old glibc (< 2.3.4) does not provide this constant. We use syscall + * directly so this definition is safe. */ +#ifndef CLOCK_MONOTONIC +#define CLOCK_MONOTONIC 1 +#endif + +/* libc has incredibly messy way of doing this, + * typically requiring -lrt. We just skip all this mess */ +static void get_mono(struct timespec *ts) +{ + if (syscall(__NR_clock_gettime, CLOCK_MONOTONIC, ts)) + bb_error_msg_and_die("clock_gettime(MONOTONIC) failed"); +} +unsigned long long FAST_FUNC monotonic_ns(void) +{ + struct timespec ts; + get_mono(&ts); + return ts.tv_sec * 1000000000ULL + ts.tv_nsec; +} +unsigned long long FAST_FUNC monotonic_us(void) +{ + struct timespec ts; + get_mono(&ts); + return ts.tv_sec * 1000000ULL + ts.tv_nsec/1000; +} +unsigned FAST_FUNC monotonic_sec(void) +{ + struct timespec ts; + get_mono(&ts); + return ts.tv_sec; +} + +#else + +unsigned long long FAST_FUNC monotonic_ns(void) +{ + struct timeval tv; + gettimeofday(&tv, NULL); + return tv.tv_sec * 1000000000ULL + tv.tv_usec * 1000; +} +unsigned long long FAST_FUNC monotonic_us(void) +{ + struct timeval tv; + gettimeofday(&tv, NULL); + return tv.tv_sec * 1000000ULL + tv.tv_usec; +} +unsigned FAST_FUNC monotonic_sec(void) +{ + return time(NULL); +} + +#endif |