1 // Copyright (c) 2021 Uber Technologies, Inc.
2 //
3 // Permission is hereby granted, free of charge, to any person obtaining a copy
4 // of this software and associated documentation files (the "Software"), to deal
5 // in the Software without restriction, including without limitation the rights
6 // to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
7 // copies of the Software, and to permit persons to whom the Software is
8 // furnished to do so, subject to the following conditions:
9 //
10 // The above copyright notice and this permission notice shall be included in
11 // all copies or substantial portions of the Software.
12 //
13 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
14 // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
15 // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
16 // AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
17 // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
18 // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
19 // THE SOFTWARE.
20 21 package zapcore
22 23 import "time"
24 25 // DefaultClock is the default clock used by Zap in operations that require
26 // time. This clock uses the system clock for all operations.
27 var DefaultClock = systemClock{}
28 29 // Clock is a source of time for logged entries.
30 type Clock interface {
31 // Now returns the current local time.
32 Now() time.Time
33 34 // NewTicker returns *time.Ticker that holds a channel
35 // that delivers "ticks" of a clock.
36 NewTicker(time.Duration) *time.Ticker
37 }
38 39 // systemClock implements default Clock that uses system time.
40 type systemClock struct{}
41 42 func (systemClock) Now() time.Time {
43 return time.Now()
44 }
45 46 func (systemClock) NewTicker(duration time.Duration) *time.Ticker {
47 return time.NewTicker(duration)
48 }
49