Gecko [ 167.86.127.34 ]

Name	Size	Permission
example_test.go	19.38 KB	-rw-r--r--
export_android_test.go	318 B	-rw-r--r--
export_test.go	3.07 KB	-rw-r--r--
export_windows_test.go	514 B	-rw-r--r--
format.go	41.67 KB	-rw-r--r--
format_test.go	25.38 KB	-rw-r--r--
genzabbrs.go	2.96 KB	-rw-r--r--
internal_test.go	2.45 KB	-rw-r--r--
mono_test.go	7.51 KB	-rw-r--r--
sleep.go	5.08 KB	-rw-r--r--
sleep_test.go	10.73 KB	-rw-r--r--
sys_plan9.go	1015 B	-rw-r--r--
sys_unix.go	1.05 KB	-rw-r--r--
sys_windows.go	996 B	-rw-r--r--
tick.go	1.8 KB	-rw-r--r--
tick_test.go	2.59 KB	-rw-r--r--
time.go	45.56 KB	-rw-r--r--
time_test.go	41.05 KB	-rw-r--r--
zoneinfo.go	8.79 KB	-rw-r--r--
zoneinfo_abbrs_windows.go	10.34 KB	-rw-r--r--
zoneinfo_android.go	2.05 KB	-rw-r--r--
zoneinfo_android_test.go	408 B	-rw-r--r--
zoneinfo_ios.go	1.02 KB	-rw-r--r--
zoneinfo_js.go	1.56 KB	-rw-r--r--
zoneinfo_plan9.go	2.71 KB	-rw-r--r--
zoneinfo_read.go	12.2 KB	-rw-r--r--
zoneinfo_test.go	4.59 KB	-rw-r--r--
zoneinfo_unix.go	1.31 KB	-rw-r--r--
zoneinfo_windows.go	6.68 KB	-rw-r--r--
zoneinfo_windows_test.go	1.9 KB	-rw-r--r--

Code Editor : tick.go

// 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

import "errors"

// A Ticker holds a channel that delivers `ticks' of a clock
// at intervals.
type Ticker struct {
	C <-chan Time // The channel on which the ticks are delivered.
	r runtimeTimer
}

// NewTicker returns a new Ticker containing a channel that will send the
// time with a period specified by the duration argument.
// It adjusts the intervals or drops ticks to make up for slow receivers.
// The duration d must be greater than zero; if not, NewTicker will panic.
// Stop the ticker to release associated resources.
func NewTicker(d Duration) *Ticker {
	if d <= 0 {
		panic(errors.New("non-positive interval for NewTicker"))
	}
	// Give the channel a 1-element time buffer.
	// If the client falls behind while reading, we drop ticks
	// on the floor until the client catches up.
	c := make(chan Time, 1)
	t := &Ticker{
		C: c,
		r: runtimeTimer{
			when:   when(d),
			period: int64(d),
			f:      sendTime,
			arg:    c,
		},
	}
	startTimer(&t.r)
	return t
}

// Stop turns off a ticker. After Stop, no more ticks will be sent.
// Stop does not close the channel, to prevent a concurrent goroutine
// reading from the channel from seeing an erroneous "tick".
func (t *Ticker) Stop() {
	stopTimer(&t.r)
}

// Tick is a convenience wrapper for NewTicker providing access to the ticking
// channel only. While Tick is useful for clients that have no need to shut down
// the Ticker, be aware that without a way to shut it down the underlying
// Ticker cannot be recovered by the garbage collector; it "leaks".
// Unlike NewTicker, Tick will return nil if d <= 0.
func Tick(d Duration) <-chan Time {
	if d <= 0 {
		return nil
	}
	return NewTicker(d).C
}

${this.title}

Code Editor : tick.go