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77 lines
1.7 KiB
77 lines
1.7 KiB
// ------------------------------------------------------------------------
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// Project atila
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// Active Thing (activething.com) git.activething.com/go
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//
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// File name rkey.go
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// Created by DEV
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// Modified 05/02/2024
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//
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// Copyright 2024 activething.com
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// ------------------------------------------------------------------------
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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// ------------------------------------------------------------------------
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package ctxs
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import "sync/atomic"
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type (
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Cancel struct {
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active uint32
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doneCh chan struct{}
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}
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)
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func NewCancel() *Cancel {
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return &Cancel{
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active: 1,
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doneCh: make(chan struct{}),
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}
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}
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func (c *Cancel) Cancel() {
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if atomic.CompareAndSwapUint32(&c.active,1,0) {
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close(c.doneCh)
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}
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}
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func (c *Cancel) Done() <-chan struct{} {
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return c.doneCh }
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func (c *Cancel) IsDone() bool {
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return atomic.LoadUint32(&c.active) == 1 }
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func (c *Cancel) Wait() {
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<-c.doneCh }
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/*
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::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
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I HAVE NO DESIRE TO WALK ON WATER," SAID SIDDHARTA.
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"LET THE OLD SHRAMANAS SATISFY THEMSELVES WITH SUCH SKILLS.
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SIDDHARTA
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- HERMANN HESSE -
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:::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
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*/
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