diff options
Diffstat (limited to 'vendor/golang.org/x/sys/unix/timestruct.go')
| -rw-r--r-- | vendor/golang.org/x/sys/unix/timestruct.go | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/vendor/golang.org/x/sys/unix/timestruct.go b/vendor/golang.org/x/sys/unix/timestruct.go index 139fbbe..47b9011 100644 --- a/vendor/golang.org/x/sys/unix/timestruct.go +++ b/vendor/golang.org/x/sys/unix/timestruct.go @@ -6,6 +6,8 @@ package unix +import "time" + // TimespecToNsec converts a Timespec value into a number of // nanoseconds since the Unix epoch. func TimespecToNsec(ts Timespec) int64 { return int64(ts.Sec)*1e9 + int64(ts.Nsec) } @@ -22,6 +24,24 @@ func NsecToTimespec(nsec int64) Timespec { return setTimespec(sec, nsec) } +// TimeToTimespec converts t into a Timespec. +// On some 32-bit systems the range of valid Timespec values are smaller +// than that of time.Time values. So if t is out of the valid range of +// Timespec, it returns a zero Timespec and ERANGE. +func TimeToTimespec(t time.Time) (Timespec, error) { + sec := t.Unix() + nsec := int64(t.Nanosecond()) + ts := setTimespec(sec, nsec) + + // Currently all targets have either int32 or int64 for Timespec.Sec. + // If there were a new target with floating point type for it, we have + // to consider the rounding error. + if int64(ts.Sec) != sec { + return Timespec{}, ERANGE + } + return ts, nil +} + // TimevalToNsec converts a Timeval value into a number of nanoseconds // since the Unix epoch. func TimevalToNsec(tv Timeval) int64 { return int64(tv.Sec)*1e9 + int64(tv.Usec)*1e3 } |