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author | Gibheer <gibheer+git@zero-knowledge.org> | 2021-12-02 17:54:14 +0100 |
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committer | Gibheer <gibheer+git@zero-knowledge.org> | 2021-12-02 17:54:14 +0100 |
commit | fa05045d31c05c8928020f05f1d281901d983b2b (patch) | |
tree | 2ed3bac60302bfb14535a169f4b3e10d18fc6120 /vendor/golang.org/x/sys/unix/timestruct.go | |
parent | 41d4805d584161ca16b8187194385e47c36422a6 (diff) |
cmd/monfront - import monfront from separate repository
This is the import from the separate monfront repository. The history
could not be imported, but this should suffice.
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..3d89304 --- /dev/null +++ b/vendor/golang.org/x/sys/unix/timestruct.go @@ -0,0 +1,77 @@ +// 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 aix || darwin || dragonfly || freebsd || linux || netbsd || openbsd || solaris || zos +// +build aix darwin dragonfly freebsd linux netbsd openbsd solaris zos + +package unix + +import "time" + +// TimespecToNSec returns the time stored in ts as nanoseconds. +func TimespecToNsec(ts Timespec) int64 { return ts.Nano() } + +// NsecToTimespec converts a number of nanoseconds into a Timespec. +func NsecToTimespec(nsec int64) Timespec { + sec := nsec / 1e9 + nsec = nsec % 1e9 + if nsec < 0 { + nsec += 1e9 + sec-- + } + 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 returns the time stored in tv as nanoseconds. +func TimevalToNsec(tv Timeval) int64 { return tv.Nano() } + +// NsecToTimeval converts a number of nanoseconds into a Timeval. +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 the time stored in ts as seconds plus nanoseconds. +func (ts *Timespec) Unix() (sec int64, nsec int64) { + return int64(ts.Sec), int64(ts.Nsec) +} + +// Unix returns the time stored in tv as seconds plus nanoseconds. +func (tv *Timeval) Unix() (sec int64, nsec int64) { + return int64(tv.Sec), int64(tv.Usec) * 1000 +} + +// Nano returns the time stored in ts as nanoseconds. +func (ts *Timespec) Nano() int64 { + return int64(ts.Sec)*1e9 + int64(ts.Nsec) +} + +// Nano returns the time stored in tv as nanoseconds. +func (tv *Timeval) Nano() int64 { + return int64(tv.Sec)*1e9 + int64(tv.Usec)*1000 +} |