mirror of
https://github.com/nabbar/golib.git
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e28c21b26c
+ Add interface SemBar to expose same interface between ProgressBar & Semaphore + Add empty function for compatibility with SemBar Package Progress : + Refactor sem function to depend of Sem interface + Replace interface function into interface and use Sem & SemBar interface as dependencies Update following test
87 lines
2.1 KiB
Go
87 lines
2.1 KiB
Go
/*
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* MIT License
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*
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* Copyright (c) 2019 Nicolas JUHEL
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in all
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* copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*
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*/
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package semaphore
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import (
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"context"
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"runtime"
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"sync/atomic"
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liberr "github.com/nabbar/golib/errors"
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"golang.org/x/sync/semaphore"
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)
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type SemBar interface {
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Sem
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Current() int64
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Completed() bool
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Reset(total, current int64)
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ResetDefined(current int64)
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Done()
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Increment(n int)
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Increment64(n int64)
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}
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type FuncContext func() context.Context
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type Sem interface {
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NewWorker() liberr.Error
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NewWorkerTry() bool
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DeferWorker()
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DeferMain()
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WaitAll() liberr.Error
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}
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func GetMaxSimultaneous() int {
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return runtime.GOMAXPROCS(0)
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}
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/*
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Deprecated: func without context will be deprecated
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*/
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func NewSemaphore(maxSimultaneous int) Sem {
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return NewSemaphoreWithContext(context.Background(), maxSimultaneous)
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}
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func NewSemaphoreWithContext(ctx context.Context, maxSimultaneous int) Sem {
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if maxSimultaneous < 1 {
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maxSimultaneous = GetMaxSimultaneous()
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}
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x, c := NewContext(ctx, 0, EmptyTime())
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return &sem{
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d: new(atomic.Value),
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i: int64(maxSimultaneous),
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s: semaphore.NewWeighted(int64(maxSimultaneous)),
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x: x,
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c: c,
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}
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}
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