40 lines
952 B
Go
40 lines
952 B
Go
package hub
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import (
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"fmt"
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"sync"
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)
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// NewObjectPool 创建一个 ObjectPool
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func NewObjectPool[T any](generator func() *T, releaser func(data *T)) *ObjectPool[*T] {
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if generator == nil || releaser == nil {
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panic(fmt.Errorf("generator and releaser can not be nil, generator check: %v, releaser check: %v", generator != nil, releaser != nil))
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}
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return &ObjectPool[*T]{
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releaser: releaser,
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p: sync.Pool{
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New: func() interface{} {
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return generator()
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},
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},
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}
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}
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// ObjectPool 基于 sync.Pool 实现的线程安全的对象池
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// - 一些高频临时生成使用的对象可以通过 ObjectPool 进行管理，例如属性计算等
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type ObjectPool[T any] struct {
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p sync.Pool
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releaser func(data T)
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}
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// Get 获取一个对象
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func (op *ObjectPool[T]) Get() T {
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return op.p.Get().(T)
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}
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// Release 将使用完成的对象放回缓冲区
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func (op *ObjectPool[T]) Release(data T) {
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op.releaser(data)
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op.p.Put(data)
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}
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