mirror of
https://github.com/criyle/go-sandbox.git
synced 2025-11-04 14:49:53 +08:00
57 lines
1.2 KiB
Go
57 lines
1.2 KiB
Go
package container
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import (
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"bytes"
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"encoding/gob"
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"fmt"
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"sync"
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"github.com/criyle/go-sandbox/pkg/unixsocket"
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)
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// 16k buffsize
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const bufferSize = 16 << 10
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var bufferPool = sync.Pool{
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New: func() interface{} {
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return make([]byte, bufferSize)
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},
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}
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type socket unixsocket.Socket
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func (s *socket) RecvMsg(e interface{}) (*unixsocket.Msg, error) {
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soc := (*unixsocket.Socket)(s)
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buff := bufferPool.Get().([]byte)
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defer bufferPool.Put(buff)
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n, msg, err := soc.RecvMsg(buff)
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if err != nil {
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return nil, fmt.Errorf("RecvMsg: %v", err)
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}
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if err := gob.NewDecoder(bytes.NewReader(buff[:n])).Decode(e); err != nil {
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return nil, fmt.Errorf("RecvMsg: failed to decode %w", err)
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}
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return msg, nil
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}
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func (s *socket) SendMsg(e interface{}, msg *unixsocket.Msg) error {
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soc := (*unixsocket.Socket)(s)
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buf := bufferPool.Get().([]byte)
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defer bufferPool.Put(buf)
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// use buf pool to reduce allocation
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buff := bytes.NewBuffer(buf[:0])
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if err := gob.NewEncoder(buff).Encode(e); err != nil {
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return fmt.Errorf("SendMsg: failed to encode %w", err)
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}
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if err := soc.SendMsg(buff.Bytes(), msg); err != nil {
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return fmt.Errorf("SendMsg: failed to SendMsg %w", err)
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}
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return nil
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}
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