# Stream
- 服务器中的 HTTP Request
- 客户端中的 HTTP Response
- 标准输出 stdout
# 属性
- destroy
- finish
- error
# stream / length
WritableState
/needDrain
buffered
Symbol(KHandler)
res._removeTE
/res.chunkedEncoding
res._headerSent
req.handle.writev(req, chunks, allBuffers);
res.write
write_
res.socket.cork
res._send
res._writeRaw
stream.write
writeOrBuffer
res.end
write_
res.socket.cork
res._implicitHeader
res.writeHead
res._storeHeader
res._send
(如果是 chunk)res._writeRaw
stream.write
writeOrBuffer
socket._write
socket._writeGeneric
socket._unrefTimer
writeGeneric
createWriteWrap
handleWriteReq
afterWriteDispatched
res._send
res._finish
clearBuffer
doWrite
socket._writev
socket._writeGeneric
writevGeneric
tcp.writev