blob: ca1d334a5b7aafa87d61bb322f070e012ec2ec0d (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
|
// Copyright 2009 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.
package time
// Seconds reports the number of seconds since the Unix epoch,
// January 1, 1970 00:00:00 UTC.
func Seconds() int64 {
return Nanoseconds() / 1e9
}
// Nanoseconds is implemented by package runtime.
// Nanoseconds reports the number of nanoseconds since the Unix epoch,
// January 1, 1970 00:00:00 UTC.
func Nanoseconds() int64
// Sleep pauses the current goroutine for at least ns nanoseconds.
// Higher resolution sleeping may be provided by syscall.Nanosleep
// on some operating systems.
func Sleep(ns int64) error {
_, err := sleep(Nanoseconds(), ns)
return err
}
// sleep takes the current time and a duration,
// pauses for at least ns nanoseconds, and
// returns the current time and an error.
func sleep(t, ns int64) (int64, error) {
// TODO(cw): use monotonic-time once it's available
end := t + ns
for t < end {
err := sysSleep(end - t)
if err != nil {
return 0, err
}
t = Nanoseconds()
}
return t, nil
}
|
