35 lines
633 B
Go
35 lines
633 B
Go
package gls
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// though this could probably be better at keeping ids smaller, the goal of
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// this class is to keep a registry of the smallest unique integer ids
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// per-process possible
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import (
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"sync"
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)
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type idPool struct {
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mtx sync.Mutex
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released []uint
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max_id uint
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}
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func (p *idPool) Acquire() (id uint) {
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p.mtx.Lock()
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defer p.mtx.Unlock()
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if len(p.released) > 0 {
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id = p.released[len(p.released)-1]
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p.released = p.released[:len(p.released)-1]
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return id
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}
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id = p.max_id
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p.max_id++
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return id
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}
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func (p *idPool) Release(id uint) {
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p.mtx.Lock()
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defer p.mtx.Unlock()
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p.released = append(p.released, id)
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}
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