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https://github.com/e1732a364fed/v2ray_simple.git
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e1732a364fed
39 lines
892 B
Go
39 lines
892 B
Go
package netLayer
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import (
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"net"
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"syscall"
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"github.com/e1732a364fed/v2ray_simple/utils"
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)
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//经过测试，网速越快、延迟越小，越不需要readv, 此时首包buf越大越好, 因为一次系统底层读取就会读到一大块数据, 此时再用readv分散写入 实际上就是反效果; readv的数量则不需要太多
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//在内网单机自己连自己测速时,readv会导致降速.
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const (
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DefaultReadvOption = true
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)
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var (
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// 是否会在转发过程中使用readv
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UseReadv bool
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)
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// if r!=0, then it means c can be used in readv. -1 means syscall.RawConn,1 means utils.BuffersReader, 2 means utils.Readver
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func IsConnGoodForReadv(c net.Conn) (r int, rawReadConn syscall.RawConn) {
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rawReadConn = GetRawConn(c)
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if rawReadConn != nil {
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r = -1
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return
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} else if mr, ok := c.(utils.MultiReader); ok {
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r = mr.WillReadBuffersBenifit()
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return
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}
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return
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}
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