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| author | Laurent Bercot <ska-skaware@skarnet.org> | 2015-01-09 01:00:59 +0000 |
|---|---|---|
| committer | Laurent Bercot <ska-skaware@skarnet.org> | 2015-01-09 01:00:59 +0000 |
| commit | 1c032ec5855551c44b88f94fc35fa87db4279f0a (patch) | |
| tree | 4aabf428c1346f01dbb65d726450d18add172603 /src/libstddjb/time_sysclock_from_tai.c | |
| parent | c2b04f3c900553ce385203b54e351df0e79449e1 (diff) | |
| download | skalibs-1c032ec5855551c44b88f94fc35fa87db4279f0a.tar.gz | |
tai conversion functions overhaul.
API change -> rc for 2.2.0.0
Doc updated.
Diffstat (limited to 'src/libstddjb/time_sysclock_from_tai.c')
| -rw-r--r-- | src/libstddjb/time_sysclock_from_tai.c | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/src/libstddjb/time_sysclock_from_tai.c b/src/libstddjb/time_sysclock_from_tai.c new file mode 100644 index 0000000..c16dbe2 --- /dev/null +++ b/src/libstddjb/time_sysclock_from_tai.c @@ -0,0 +1,20 @@ +/* ISC license. */ + +#include <sys/types.h> +#include <errno.h> +#include <skalibs/sysdeps.h> +#include <skalibs/uint64.h> +#include <skalibs/tai.h> + +int time_sysclock_from_tai (time_t *u, tai_t const *t) +{ + uint64 uu ; + if (!sysclock_from_tai(&uu, t)) return 0 ; + uu -= TAI_MAGIC ; +#if SKALIBS_SIZEOFTIME < 8 + if ((uu >> 32) && (uu >> 32) != 0xffffffffUL) + return (errno = EOVERFLOW, 0) ; +#endif + *u = (time_t)uu ; + return 1 ; +} |