Comments (3)
@xhaoxiong 我们对unpack的设计和理解应该是从一个tcp原始数据 -> 我们可以用的最基本的数据包,将业务代码和原始报文处理分离。在里面就需要人们根据自己的需求去实现对应的unpack方法。换而言之,netty的各种decoder方法我们都可以基于我们的 unpack 去实现对应功能。
我这里举个例子,如果我们是按长度取数的话,在unpack里就可以 if buffer.virtrualLength() > 100
去判断是否有足够的数据,再决定返回内容继续处理还是nil来等待下次数据到来。对于其他的decoder方法都可以类比实现(有机会我们会在库里提供对应实现方便使用)。
当然还有很多不完善和有问题的的地方,如果有更好的意见或者建议请提给我们。
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使用protobuf 序列化 , 通过多线程发报文的情况下,确实有粘报文体,代码如下:
top, tail := buffer.PeekAll()
data := append(top, tail...)
log.Printf("request Host:[%s] msg:%x", c.PeerAddr(), data)
var communication protobuf.Communication
if e := proto.Unmarshal(data, &communication); e == nil {
buffer.RetrieveAll()
//逻辑处理
} else {
log.Printf("Unmarshal error %v", e)
}
communication Unmarshal error:proto: protobuf.Communication: illegal tag 0 (wire type 1)
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@itlabers 对于网络处理,一定要有方式去把“数据包”正确完整得取出来。对于你这种推荐在包头用2字节确认后续包长度,可以看ws对于数据包得处理。
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