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| author | Mitja Felicijan <mitja.felicijan@gmail.com> | 2024-10-25 00:47:47 +0200 |
|---|---|---|
| committer | Mitja Felicijan <mitja.felicijan@gmail.com> | 2024-10-25 00:47:47 +0200 |
| commit | c6cc0108ca7738023b45e0eeac0fa2390532dd93 (patch) | |
| tree | 36890e6cd3091bbab8efbe686cc56f467f645bfd /vendor/golang.org/x/sys/unix/timestruct.go | |
| parent | 0130404a1dc663d4aa68d780c9bcb23a4243e68d (diff) | |
| download | jbmafp-master.tar.gz | |
Diffstat (limited to 'vendor/golang.org/x/sys/unix/timestruct.go')
| -rw-r--r-- | vendor/golang.org/x/sys/unix/timestruct.go | 77 |
1 files changed, 77 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 0000000..616b1b2 --- /dev/null +++ b/vendor/golang.org/x/sys/unix/timestruct.go | |||
| @@ -0,0 +1,77 @@ | |||
| 1 | // Copyright 2017 The Go Authors. All rights reserved. | ||
| 2 | // Use of this source code is governed by a BSD-style | ||
| 3 | // license that can be found in the LICENSE file. | ||
| 4 | |||
| 5 | //go:build aix || darwin || dragonfly || freebsd || linux || netbsd || openbsd || solaris || zos | ||
| 6 | // +build aix darwin dragonfly freebsd linux netbsd openbsd solaris zos | ||
| 7 | |||
| 8 | package unix | ||
| 9 | |||
| 10 | import "time" | ||
| 11 | |||
| 12 | // TimespecToNsec returns the time stored in ts as nanoseconds. | ||
| 13 | func TimespecToNsec(ts Timespec) int64 { return ts.Nano() } | ||
| 14 | |||
| 15 | // NsecToTimespec converts a number of nanoseconds into a Timespec. | ||
| 16 | func NsecToTimespec(nsec int64) Timespec { | ||
| 17 | sec := nsec / 1e9 | ||
| 18 | nsec = nsec % 1e9 | ||
| 19 | if nsec < 0 { | ||
| 20 | nsec += 1e9 | ||
| 21 | sec-- | ||
| 22 | } | ||
| 23 | return setTimespec(sec, nsec) | ||
| 24 | } | ||
| 25 | |||
| 26 | // TimeToTimespec converts t into a Timespec. | ||
| 27 | // On some 32-bit systems the range of valid Timespec values are smaller | ||
| 28 | // than that of time.Time values. So if t is out of the valid range of | ||
| 29 | // Timespec, it returns a zero Timespec and ERANGE. | ||
| 30 | func TimeToTimespec(t time.Time) (Timespec, error) { | ||
| 31 | sec := t.Unix() | ||
| 32 | nsec := int64(t.Nanosecond()) | ||
| 33 | ts := setTimespec(sec, nsec) | ||
| 34 | |||
| 35 | // Currently all targets have either int32 or int64 for Timespec.Sec. | ||
| 36 | // If there were a new target with floating point type for it, we have | ||
| 37 | // to consider the rounding error. | ||
| 38 | if int64(ts.Sec) != sec { | ||
| 39 | return Timespec{}, ERANGE | ||
| 40 | } | ||
| 41 | return ts, nil | ||
| 42 | } | ||
| 43 | |||
| 44 | // TimevalToNsec returns the time stored in tv as nanoseconds. | ||
| 45 | func TimevalToNsec(tv Timeval) int64 { return tv.Nano() } | ||
| 46 | |||
| 47 | // NsecToTimeval converts a number of nanoseconds into a Timeval. | ||
| 48 | func NsecToTimeval(nsec int64) Timeval { | ||
| 49 | nsec += 999 // round up to microsecond | ||
| 50 | usec := nsec % 1e9 / 1e3 | ||
| 51 | sec := nsec / 1e9 | ||
| 52 | if usec < 0 { | ||
| 53 | usec += 1e6 | ||
| 54 | sec-- | ||
| 55 | } | ||
| 56 | return setTimeval(sec, usec) | ||
| 57 | } | ||
| 58 | |||
| 59 | // Unix returns the time stored in ts as seconds plus nanoseconds. | ||
| 60 | func (ts *Timespec) Unix() (sec int64, nsec int64) { | ||
| 61 | return int64(ts.Sec), int64(ts.Nsec) | ||
| 62 | } | ||
| 63 | |||
| 64 | // Unix returns the time stored in tv as seconds plus nanoseconds. | ||
| 65 | func (tv *Timeval) Unix() (sec int64, nsec int64) { | ||
| 66 | return int64(tv.Sec), int64(tv.Usec) * 1000 | ||
| 67 | } | ||
| 68 | |||
| 69 | // Nano returns the time stored in ts as nanoseconds. | ||
| 70 | func (ts *Timespec) Nano() int64 { | ||
| 71 | return int64(ts.Sec)*1e9 + int64(ts.Nsec) | ||
| 72 | } | ||
| 73 | |||
| 74 | // Nano returns the time stored in tv as nanoseconds. | ||
| 75 | func (tv *Timeval) Nano() int64 { | ||
| 76 | return int64(tv.Sec)*1e9 + int64(tv.Usec)*1000 | ||
| 77 | } | ||
