59 lines
1015 B
Go
59 lines
1015 B
Go
package pdu
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import (
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"sync"
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)
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type BufferPoolManager struct {
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pools map[uint]*sync.Pool
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mu sync.RWMutex
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}
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func NewBufferPoolManager() *BufferPoolManager {
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return &BufferPoolManager{
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pools: make(map[uint]*sync.Pool),
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}
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}
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func (bpm *BufferPoolManager) Get(size uint) *[]uint8 {
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bpm.mu.RLock()
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pool, exists := bpm.pools[size]
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bpm.mu.RUnlock()
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if !exists {
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bpm.mu.Lock()
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// Double-check if another goroutine added the pool while we were waiting
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pool, exists = bpm.pools[size]
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if !exists {
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pool = &sync.Pool{
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New: func() interface{} {
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buf := make([]uint8, size)
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return &buf
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},
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}
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bpm.pools[size] = pool
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}
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bpm.mu.Unlock()
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}
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return pool.Get().(*[]uint8)
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}
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func (bpm *BufferPoolManager) Put(buf *[]uint8) {
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size := uint(len(*buf))
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bpm.mu.RLock()
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pool, exists := bpm.pools[size]
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bpm.mu.RUnlock()
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if !exists {
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return
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}
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// Clear buffer
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for i := range *buf {
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(*buf)[i] = 0
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}
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pool.Put(buf)
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}
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