/
listener.go
132 lines (108 loc) · 2.73 KB
/
listener.go
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package transport
import (
"context"
"net"
"net/http"
"time"
"golang.org/x/net/http2"
"golang.org/x/net/http2/h2c"
)
type (
transportListener struct {
listener net.Listener
transport ITransport
sock ISocket // TODO 还没实现
http *http.Server
}
)
func (self *transportListener) Addr() net.Addr {
return self.listener.Addr()
}
func (self *transportListener) Close() error {
if self.http != nil {
err := self.http.Close()
if err != nil {
return err
}
}
return self.listener.Close()
}
func (t *transportListener) Accept() (net.Conn, error) {
return t.listener.Accept()
}
func (self *transportListener) Serve(handler Handler) error {
switch v := handler.Handler().(type) {
case http.Handler:
self.http = &http.Server{
Handler: v,
}
// default http2 server
// insecure connection use h2c
if !(self.transport.Config().Secure || self.transport.Config().TlsConfig != nil) {
self.http.Handler = h2c.NewHandler(self.http.Handler, &http2.Server{})
}
// begin serving
return self.http.Serve(self.listener)
case customHandler:
self.http = &http.Server{
Handler: &customxx{
hd: v,
},
}
// default http2 server
// insecure connection use h2c
if !(self.transport.Config().Secure || self.transport.Config().TlsConfig != nil) {
self.http.Handler = h2c.NewHandler(self.http.Handler, &http2.Server{})
}
// begin serving
return self.http.Serve(self.listener)
case rpcHandler:
var tempDelay time.Duration
for {
conn, err := self.listener.Accept()
if err != nil {
if ne, ok := err.(net.Error); ok && ne.Temporary() {
if tempDelay == 0 {
tempDelay = 5 * time.Millisecond
} else {
tempDelay *= 2
}
if max := 1 * time.Second; tempDelay > max {
tempDelay = max
}
log.Errf("http: Accept error: %v; retrying in %v\n", err, tempDelay)
time.Sleep(tempDelay)
continue
}
return err
}
sock := NewTcpTransportSocket(conn, self.transport.Config().ReadTimeout, self.transport.Config().WriteTimeout)
go func() {
//@ 获取空白通讯包
msg := GetMessageFromPool() // request message
// TODO: think of a better error response strategy
defer func() {
if r := recover(); r != nil {
sock.Close()
}
PutMessageToPool(msg)
}()
// TODO 自定义通讯包结构
// 获得请求参数
err = msg.Decode(conn) // 等待读取客户端信号
if err != nil {
//return err
// TODO
}
ctx := context.WithValue(context.Background(), RemoteConnContextKey, conn)
req := NewRpcRequest(ctx, msg, sock)
rsp := NewRpcResponse(ctx, req, sock)
v.ServeRPC(rsp, req)
}()
}
}
return nil
}
func (self *transportListener) Sock() ISocket {
return self.sock
}