xjasonlyu/tun2socks

// Package buffer provides a pool of []byte.
package buffer
 
import (
    "github.com/xjasonlyu/tun2socks/v2/buffer/allocator"
)
 
const (
    // MaxSegmentSize is the largest possible UDP datagram size.
    MaxSegmentSize = (1 << 16) - 1
 
    // RelayBufferSize is the default buffer size for TCP relays.
    // io.Copy default buffer size is 32 KiB, but the maximum packet
    // size of vmess/shadowsocks is about 16 KiB, so define a buffer
    // of 20 KiB to reduce the memory of each TCP relay.
    RelayBufferSize = 20 << 10
)
 
var _allocator = allocator.New()
 
// Get gets a []byte from default allocator with most appropriate cap.
func Get(size int) []byte {
    return _allocator.Get(size)
}
 
// Put returns a []byte to default allocator for future use.
func Put(buf []byte) error {
    return _allocator.Put(buf)
}