mirror of
https://gitee.com/johng/gf.git
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126 lines
3.2 KiB
Go
126 lines
3.2 KiB
Go
// Copyright 2018 gf Author(https://gitee.com/johng/gf). All Rights Reserved.
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//
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// This Source Code Form is subject to the terms of the MIT License.
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// If a copy of the MIT was not distributed with this file,
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// You can obtain one at https://gitee.com/johng/gf.
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package ghttp
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import (
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"fmt"
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"net"
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"os"
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"context"
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"net/http"
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"crypto/tls"
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"gitee.com/johng/gf/g/os/glog"
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)
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// 优雅的Web Server对象封装
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type gracefulServer struct {
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fd uintptr
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addr string
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httpServer *http.Server
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listener net.Listener
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shutdownChan chan bool
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}
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// 创建一个优雅的Http Server
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func (s *Server) newGracefulServer(addr string, fd...int) *gracefulServer {
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gs := &gracefulServer {
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addr : addr,
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httpServer : s.newHttpServer(addr),
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shutdownChan : make(chan bool),
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}
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if len(fd) > 0 && fd[0] > 0 {
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gs.fd = uintptr(fd[0])
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}
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return gs
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}
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// 生成一个底层的Web Server对象
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func (s *Server) newHttpServer(addr string) *http.Server {
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return &http.Server {
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Addr : addr,
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Handler : s.config.Handler,
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ReadTimeout : s.config.ReadTimeout,
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WriteTimeout : s.config.WriteTimeout,
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IdleTimeout : s.config.IdleTimeout,
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MaxHeaderBytes : s.config.MaxHeaderBytes,
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}
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}
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// 执行HTTP监听
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func (s *gracefulServer) ListenAndServe() error {
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addr := s.httpServer.Addr
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ln, err := s.getNetListener(addr)
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if err != nil {
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return err
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}
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s.listener = ln
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return s.doServe()
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}
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// 执行HTTPS监听
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func (s *gracefulServer) ListenAndServeTLS(certFile, keyFile string) error {
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addr := s.httpServer.Addr
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config := &tls.Config{}
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if s.httpServer.TLSConfig != nil {
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*config = *s.httpServer.TLSConfig
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}
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if config.NextProtos == nil {
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config.NextProtos = []string{"http/1.1"}
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}
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var err error
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config.Certificates = make([]tls.Certificate, 1)
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config.Certificates[0], err = tls.LoadX509KeyPair(certFile, keyFile)
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if err != nil {
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return err
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}
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ln, err := s.getNetListener(addr)
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if err != nil {
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return err
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}
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s.listener = tls.NewListener(ln, config)
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return s.doServe()
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}
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// 开始执行Web Server服务处理
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func (s *gracefulServer) doServe() error {
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err := s.httpServer.Serve(s.listener)
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<-s.shutdownChan
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return err
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}
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// 自定义的net.Listener
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func (s *gracefulServer) getNetListener(addr string) (net.Listener, error) {
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var ln net.Listener
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var err error
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if s.fd > 0 {
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f := os.NewFile(s.fd, "")
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ln, err = net.FileListener(f)
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if err != nil {
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err = fmt.Errorf("net.FileListener error: %v", err)
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return nil, err
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}
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} else {
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ln, err = net.Listen("tcp", addr)
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if err != nil {
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err = fmt.Errorf("net.Listen error: %v", err)
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return nil, err
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}
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}
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return ln, nil
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}
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// 执行请求优雅关闭
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func (s *gracefulServer) shutdown() {
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if err := s.httpServer.Shutdown(context.Background()); err != nil {
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glog.Errorf("server %s shutdown error: %v\n", s.addr, err)
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} else {
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glog.Printf("server %s shutdown successfully\n", s.addr)
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s.shutdownChan <- true
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}
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}
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