diff options
Diffstat (limited to 'vendor/golang.org/x/sys/unix/timestruct.go')
-rw-r--r-- | vendor/golang.org/x/sys/unix/timestruct.go | 62 |
1 files changed, 62 insertions, 0 deletions
diff --git a/vendor/golang.org/x/sys/unix/timestruct.go b/vendor/golang.org/x/sys/unix/timestruct.go new file mode 100644 index 00000000..139fbbeb --- /dev/null +++ b/vendor/golang.org/x/sys/unix/timestruct.go @@ -0,0 +1,62 @@ +// Copyright 2017 The Go Authors. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +// +build darwin dragonfly freebsd linux netbsd openbsd solaris + +package unix + +// 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) } + +// NsecToTimespec takes a number of nanoseconds since the Unix epoch +// and returns the corresponding Timespec value. +func NsecToTimespec(nsec int64) Timespec { + sec := nsec / 1e9 + nsec = nsec % 1e9 + if nsec < 0 { + nsec += 1e9 + sec-- + } + return setTimespec(sec, nsec) +} + +// 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 } + +// NsecToTimeval takes a number of nanoseconds since the Unix epoch +// and returns the corresponding Timeval value. +func NsecToTimeval(nsec int64) Timeval { + nsec += 999 // round up to microsecond + usec := nsec % 1e9 / 1e3 + sec := nsec / 1e9 + if usec < 0 { + usec += 1e6 + sec-- + } + return setTimeval(sec, usec) +} + +// Unix returns ts as the number of seconds and nanoseconds elapsed since the +// Unix epoch. +func (ts *Timespec) Unix() (sec int64, nsec int64) { + return int64(ts.Sec), int64(ts.Nsec) +} + +// Unix returns tv as the number of seconds and nanoseconds elapsed since the +// Unix epoch. +func (tv *Timeval) Unix() (sec int64, nsec int64) { + return int64(tv.Sec), int64(tv.Usec) * 1000 +} + +// Nano returns ts as the number of nanoseconds elapsed since the Unix epoch. +func (ts *Timespec) Nano() int64 { + return int64(ts.Sec)*1e9 + int64(ts.Nsec) +} + +// Nano returns tv as the number of nanoseconds elapsed since the Unix epoch. +func (tv *Timeval) Nano() int64 { + return int64(tv.Sec)*1e9 + int64(tv.Usec)*1000 +} |