diff --git a/unix/timestruct_linux.go b/unix/timestruct_linux.go new file mode 100644 index 000000000..3ff8b6a81 --- /dev/null +++ b/unix/timestruct_linux.go @@ -0,0 +1,26 @@ +// 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. + +//go:build linux + +package unix + +import "time" + +// TimeToPtpClockTime returns t as PtpClockTime +func TimeToPtpClockTime(t time.Time) PtpClockTime { + sec := t.Unix() + nsec := uint32(t.Nanosecond()) + return PtpClockTime{Sec: sec, Nsec: nsec} +} + +// Time returns PTPClockTime as time.Time +func (t *PtpClockTime) Time() time.Time { + return time.Unix(t.Sec, int64(t.Nsec)) +} + +// Unix returns the time stored in t as seconds plus nanoseconds. +func (t *PtpClockTime) Unix() (sec int64, nsec int64) { + return t.Sec, int64(t.Nsec) +} diff --git a/unix/timestruct_linux_test.go b/unix/timestruct_linux_test.go new file mode 100644 index 000000000..9a00510ca --- /dev/null +++ b/unix/timestruct_linux_test.go @@ -0,0 +1,42 @@ +// Copyright 2017 The Go Authors. All right reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +//go:build linux + +package unix_test + +import ( + "testing" + "time" + + "golang.org/x/sys/unix" +) + +func TestTimeToPtpClockTime(t *testing.T) { + testcases := []struct { + time time.Time + }{ + {time.Unix(0, 0)}, + {time.Date(2009, time.November, 10, 23, 0, 0, 0, time.UTC)}, + {time.Date(2262, time.December, 31, 23, 0, 0, 0, time.UTC)}, + {time.Unix(0x7FFFFFFF, 0)}, + {time.Unix(0x80000000, 0)}, + {time.Unix(0x7FFFFFFF, 1000000000)}, + {time.Unix(0x7FFFFFFF, 999999999)}, + {time.Unix(-0x80000000, 0)}, + {time.Unix(-0x80000001, 0)}, + {time.Date(2038, time.January, 19, 3, 14, 7, 0, time.UTC)}, + {time.Date(2038, time.January, 19, 3, 14, 8, 0, time.UTC)}, + {time.Date(1901, time.December, 13, 20, 45, 52, 0, time.UTC)}, + {time.Date(1901, time.December, 13, 20, 45, 51, 0, time.UTC)}, + } + + for _, tc := range testcases { + ts := unix.TimeToPtpClockTime(tc.time) + tstime := time.Unix(int64(ts.Sec), int64(ts.Nsec)) + if !tstime.Equal(tc.time) { + t.Errorf("TimeToPtpClockTime(%v) is the time %v", tc.time, tstime) + } + } +}