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21 lines
682 B
Go
21 lines
682 B
Go
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// Copyright 2021 The Go Authors. All rights reserved. Use of this
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// source code is governed by a BSD-style license that can be found in
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// the LICENSE file.
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package a
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// A StoppableWaitGroup waits for a collection of goroutines to finish.
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type StoppableWaitGroup struct {
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// i is the internal counter which can store tolerate negative values
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// as opposed the golang's library WaitGroup.
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i *int64
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}
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// NewStoppableWaitGroup returns a new StoppableWaitGroup. When the 'Stop' is
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// executed, following 'Add()' calls won't have any effect.
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func NewStoppableWaitGroup() *StoppableWaitGroup {
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return &StoppableWaitGroup{
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i: func() *int64 { i := int64(0); return &i }(),
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}
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}
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