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tcp socket协议分割解析优化

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This commit is contained in:
flswld
2023-04-14 22:07:41 +08:00
parent ae5f2809bf
commit b6be98c58c
7 changed files with 89 additions and 72 deletions
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3
gate/net/kcp_connect_manager.go
View File

@@ -287,7 +287,6 @@ func (k *KcpConnectManager) recvHandle(session *Session) {
conn := session.conn
convId := conn.GetConv()
recvBuf := make([]byte, PacketMaxLen)
dataBuf := make([]byte, 0, 1500)
pktFreqLimitCounter := 0
pktFreqLimitTimer := time.Now().UnixNano()
for {
@@ -313,7 +312,7 @@ func (k *KcpConnectManager) recvHandle(session *Session) {
}
recvData := recvBuf[:recvLen]
kcpMsgList := make([]*KcpMsg, 0)
DecodeBinToPayload(recvData, &dataBuf, convId, &kcpMsgList, session.xorKey)
DecodeBinToPayload(recvData, convId, &kcpMsgList, session.xorKey)
for _, v := range kcpMsgList {
protoMsgList := ProtoDecode(v, k.serverCmdProtoMap, k.clientCmdProtoMap)
for _, vv := range protoMsgList {

28
gate/net/kcp_endecode.go
View File

@@ -32,21 +32,16 @@ type KcpMsg struct {
ProtoData []byte
}
func DecodeBinToPayload(data []byte, dataBuf *[]byte, convId uint64, kcpMsgList *[]*KcpMsg, xorKey []byte) {
func DecodeBinToPayload(data []byte, convId uint64, kcpMsgList *[]*KcpMsg, xorKey []byte) {
// xor解密
endec.Xor(data, xorKey)
DecodeLoop(data, dataBuf, convId, kcpMsgList)
DecodeLoop(data, convId, kcpMsgList)
}
func DecodeLoop(data []byte, dataBuf *[]byte, convId uint64, kcpMsgList *[]*KcpMsg) {
if len(*dataBuf) != 0 {
// 取出之前的缓冲区数据
data = append(*dataBuf, data...)
*dataBuf = make([]byte, 0, 1500)
}
func DecodeLoop(data []byte, convId uint64, kcpMsgList *[]*KcpMsg) {
// 长度太短
if len(data) < 12 {
logger.Debug("packet len less 12 byte")
logger.Error("packet len less than 12 byte")
return
}
// 头部幻数错误
@@ -66,13 +61,8 @@ func DecodeLoop(data []byte, dataBuf *[]byte, convId uint64, kcpMsgList *[]*KcpM
logger.Error("packet len too long")
return
}
haveMorePacket := false
if len(data) > packetLen {
// 有不止一个包
haveMorePacket = true
} else if len(data) < packetLen {
// 这一次没收够 放入缓冲区
*dataBuf = append(*dataBuf, data...)
if len(data) < packetLen {
logger.Error("packet len not enough")
return
}
// 尾部幻数错误
@@ -91,9 +81,9 @@ func DecodeLoop(data []byte, dataBuf *[]byte, convId uint64, kcpMsgList *[]*KcpM
kcpMsg.HeadData = headData
kcpMsg.ProtoData = protoData
*kcpMsgList = append(*kcpMsgList, kcpMsg)
// 递归解析
if haveMorePacket {
DecodeLoop(data[packetLen:], dataBuf, convId, kcpMsgList)
// 有不止一个包 递归解析
if len(data) > packetLen {
DecodeLoop(data[packetLen:], convId, kcpMsgList)
}
}