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https://github.com/tinygo-org/tinygo.git
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Ayke van Laethem
51504bfd2e
Make sure the object is locked when trying to modify it. Binary size seems unaffected when not using threading.
34 lines
658 B
Go
34 lines
658 B
Go
package sync
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import "internal/task"
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// Pool is a very simple implementation of sync.Pool.
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type Pool struct {
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lock task.PMutex
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New func() interface{}
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items []interface{}
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}
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// Get returns an item in the pool, or the value of calling Pool.New() if there are no items.
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func (p *Pool) Get() interface{} {
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p.lock.Lock()
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if len(p.items) > 0 {
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x := p.items[len(p.items)-1]
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p.items = p.items[:len(p.items)-1]
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p.lock.Unlock()
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return x
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}
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p.lock.Unlock()
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if p.New == nil {
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return nil
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}
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return p.New()
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}
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// Put adds a value back into the pool.
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func (p *Pool) Put(x interface{}) {
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p.lock.Lock()
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p.items = append(p.items, x)
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p.lock.Unlock()
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}
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