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