2017-12-29 16:03:30 +08:00
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// Copyright 2017 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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2017-11-23 10:21:28 +08:00
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package ghttp
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import (
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2018-05-06 22:35:08 +08:00
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"os"
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2017-12-07 14:57:16 +08:00
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"sync"
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"errors"
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2018-04-10 10:32:37 +08:00
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"strings"
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2017-12-12 17:25:50 +08:00
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"reflect"
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2018-05-13 14:04:37 +08:00
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"runtime"
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2017-12-26 11:46:48 +08:00
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"net/http"
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2018-04-19 13:41:06 +08:00
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"gitee.com/johng/gf/g/os/glog"
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2018-05-11 12:57:05 +08:00
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"gitee.com/johng/gf/g/os/gproc"
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2018-04-11 16:06:45 +08:00
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"gitee.com/johng/gf/g/os/gcache"
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2018-04-20 23:23:42 +08:00
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"gitee.com/johng/gf/g/util/gconv"
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2018-01-02 15:52:32 +08:00
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"gitee.com/johng/gf/g/container/gmap"
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2018-04-09 17:55:46 +08:00
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"gitee.com/johng/gf/g/container/gtype"
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2018-04-11 16:06:45 +08:00
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"gitee.com/johng/gf/g/container/gqueue"
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2018-05-31 12:07:31 +08:00
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"gitee.com/johng/gf/g/os/gspath"
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"gitee.com/johng/gf/g/os/gfile"
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2018-06-01 00:11:45 +08:00
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"gitee.com/johng/gf/g/os/genv"
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2018-06-02 23:47:16 +08:00
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"github.com/gorilla/websocket"
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2017-11-23 10:21:28 +08:00
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)
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2017-12-11 17:16:59 +08:00
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const (
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2018-05-08 23:38:09 +08:00
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gHTTP_METHODS = "GET,PUT,POST,DELETE,PATCH,HEAD,CONNECT,OPTIONS,TRACE"
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gDEFAULT_SERVER = "default"
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gDEFAULT_DOMAIN = "default"
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gDEFAULT_METHOD = "ALL"
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gDEFAULT_COOKIE_PATH = "/" // 默认path
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gDEFAULT_COOKIE_MAX_AGE = 86400*365 // 默认cookie有效期(一年)
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gDEFAULT_SESSION_MAX_AGE = 600 // 默认session有效期(600秒)
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gDEFAULT_SESSION_ID_NAME = "gfsessionid" // 默认存放Cookie中的SessionId名称
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2017-12-11 17:16:59 +08:00
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)
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2018-05-06 22:35:08 +08:00
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// ghttp.Server结构体
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type Server struct {
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// 基本属性变量
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name string // 服务名称,方便识别
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paths *gspath.SPath // 静态文件检索对象
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config ServerConfig // 配置对象
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status int8 // 当前服务器状态(0:未启动,1:运行中)
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2018-05-08 18:41:29 +08:00
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servers []*gracefulServer // 底层http.Server列表
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2018-04-19 19:11:10 +08:00
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methodsMap map[string]bool // 所有支持的HTTP Method(初始化时自动填充)
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2018-05-06 22:35:08 +08:00
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servedCount *gtype.Int // 已经服务的请求数(4-8字节,不考虑溢出情况),同时作为请求ID
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closeQueue *gqueue.Queue // 请求结束的关闭队列(存放的是需要异步关闭处理的*Request对象)
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// 服务注册相关
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hmmu sync.RWMutex // handler互斥锁
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hmcmu sync.RWMutex // handlerCache互斥锁
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2018-04-19 19:11:10 +08:00
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handlerMap HandlerMap // 所有注册的回调函数(静态匹配)
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handlerTree map[string]interface{} // 所有注册的回调函数(动态匹配,树型+链表优先级匹配)
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handlerCache *gcache.Cache // 服务注册路由内存缓存
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2018-05-06 22:35:08 +08:00
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// 事件回调注册
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hhmu sync.RWMutex // hooks互斥锁
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hhcmu sync.RWMutex // hooksCache互斥锁
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hooksTree map[string]interface{} // 所有注册的事件回调函数(动态匹配,树型+链表优先级匹配)
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2018-04-19 19:11:10 +08:00
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hooksCache *gcache.Cache // 回调事件注册路由内存缓存
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2018-05-06 22:35:08 +08:00
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// 自定义状态码回调
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hsmu sync.RWMutex // status handler互斥锁
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statusHandlerMap map[string]HandlerFunc // 不同状态码下的注册处理方法(例如404状态时的处理方法)
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// COOKIE
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cookieMaxAge *gtype.Int // Cookie有效期
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2018-05-06 22:35:08 +08:00
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cookies *gmap.IntInterfaceMap // 当前服务器正在服务(请求正在执行)的Cookie(每个请求一个Cookie对象)
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// SESSION
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2018-04-19 19:11:10 +08:00
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sessionMaxAge *gtype.Int // Session有效期
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sessionIdName *gtype.String // SessionId名称
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sessions *gcache.Cache // Session内存缓存
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2018-05-06 22:35:08 +08:00
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// 日志相关属性
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2018-04-19 19:11:10 +08:00
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logPath *gtype.String // 存放日志的目录路径
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2018-05-06 22:35:08 +08:00
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logHandler *gtype.Interface // 自定义日志处理回调方法
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2018-04-19 19:11:10 +08:00
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errorLogEnabled *gtype.Bool // 是否开启error log
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accessLogEnabled *gtype.Bool // 是否开启access log
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2018-04-20 18:12:47 +08:00
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accessLogger *glog.Logger // access log日志对象
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errorLogger *glog.Logger // error log日志对象
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2017-12-07 14:57:16 +08:00
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}
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2017-12-11 17:16:59 +08:00
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// 域名、URI与回调函数的绑定记录表
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2018-04-12 14:09:33 +08:00
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type HandlerMap map[string]*HandlerItem
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2017-12-11 17:16:59 +08:00
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2018-04-22 22:17:20 +08:00
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// 路由对象
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type Router struct {
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Uri string // 注册时的pattern - uri
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Method string // 注册时的pattern - method
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Domain string // 注册时的pattern - domain
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Priority int // 优先级,用于链表排序,值越大优先级越高
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}
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2017-12-14 17:32:51 +08:00
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// http回调函数注册信息
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2017-12-26 10:13:49 +08:00
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type HandlerItem struct {
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2018-04-12 14:09:33 +08:00
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ctype reflect.Type // 控制器类型
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fname string // 回调方法名称
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faddr HandlerFunc // 准确的执行方法内存地址(与以上两个参数二选一)
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2018-04-22 22:17:20 +08:00
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router *Router // 注册时绑定的路由对象
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2017-12-12 17:25:50 +08:00
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}
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2017-12-07 14:57:16 +08:00
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2018-06-02 23:47:16 +08:00
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// HTTP注册函数
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2018-05-04 16:50:54 +08:00
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type HandlerFunc func(r *Request)
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2017-12-26 10:13:49 +08:00
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2018-05-10 23:52:09 +08:00
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// 文件描述符map
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type listenerFdMap map[string]string
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2017-12-08 12:03:21 +08:00
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// Server表,用以存储和检索名称与Server对象之间的关联关系
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2017-12-13 16:45:00 +08:00
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var serverMapping = gmap.NewStringInterfaceMap()
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2017-12-07 17:34:51 +08:00
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2018-06-02 23:47:16 +08:00
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// Web Socket默认配置
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var wsUpgrader = websocket.Upgrader{}
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2018-05-10 23:52:09 +08:00
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2018-05-13 14:04:37 +08:00
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// Web Server已完成服务事件通道,当有事件时表示服务完成,当前进程退出
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2018-06-02 23:47:16 +08:00
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var doneChan = make(chan struct{}, 1000)
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2018-05-10 23:52:09 +08:00
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// Web Server进程初始化
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func init() {
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2018-06-01 18:19:54 +08:00
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// 如果是完整重启,那么需要等待主进程销毁后,才开始执行监听,防止端口冲突
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if genv.Get(gADMIN_ACTION_RESTART_ENVKEY) != "" {
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if p, e := os.FindProcess(gproc.PPid()); e == nil {
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p.Kill()
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p.Wait()
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} else {
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glog.Error(e)
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}
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}
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2018-06-01 00:11:45 +08:00
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// 信号量管理操作监听
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go handleProcessSignal()
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2018-05-10 23:52:09 +08:00
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}
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2017-12-18 10:42:59 +08:00
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// 获取/创建一个默认配置的HTTP Server(默认监听端口是80)
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// 单例模式,请保证name的唯一性
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2018-04-20 23:23:42 +08:00
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func GetServer(name...interface{}) (*Server) {
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sname := gDEFAULT_SERVER
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if len(name) > 0 {
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sname = gconv.String(name[0])
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2017-12-30 18:35:24 +08:00
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}
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2018-04-20 23:23:42 +08:00
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if s := serverMapping.Get(sname); s != nil {
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2017-12-08 12:03:21 +08:00
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return s.(*Server)
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2017-12-07 17:34:51 +08:00
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}
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2018-04-11 16:06:45 +08:00
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s := &Server {
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2018-04-20 23:23:42 +08:00
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name : sname,
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2018-05-31 12:07:31 +08:00
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paths : gspath.New(),
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2018-05-08 18:41:29 +08:00
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servers : make([]*gracefulServer, 0),
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2018-04-19 19:11:10 +08:00
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methodsMap : make(map[string]bool),
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handlerMap : make(HandlerMap),
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2018-05-04 14:35:20 +08:00
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statusHandlerMap : make(map[string]HandlerFunc),
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2018-04-19 19:11:10 +08:00
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handlerTree : make(map[string]interface{}),
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hooksTree : make(map[string]interface{}),
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handlerCache : gcache.New(),
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hooksCache : gcache.New(),
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cookies : gmap.NewIntInterfaceMap(),
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sessions : gcache.New(),
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cookieMaxAge : gtype.NewInt(gDEFAULT_COOKIE_MAX_AGE),
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sessionMaxAge : gtype.NewInt(gDEFAULT_SESSION_MAX_AGE),
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sessionIdName : gtype.NewString(gDEFAULT_SESSION_ID_NAME),
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servedCount : gtype.NewInt(),
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closeQueue : gqueue.New(),
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logPath : gtype.NewString(),
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accessLogEnabled : gtype.NewBool(),
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2018-04-23 11:20:48 +08:00
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errorLogEnabled : gtype.NewBool(true),
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2018-04-20 18:12:47 +08:00
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accessLogger : glog.New(),
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errorLogger : glog.New(),
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2018-04-19 19:11:10 +08:00
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logHandler : gtype.NewInterface(),
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2017-12-30 17:09:00 +08:00
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}
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2018-04-20 18:12:47 +08:00
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s.errorLogger.SetBacktraceSkip(4)
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s.accessLogger.SetBacktraceSkip(4)
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2018-04-19 14:29:19 +08:00
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// 设置路由解析缓存上限,使用LRU进行缓存淘汰
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2018-04-13 18:48:19 +08:00
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s.hooksCache.SetCap(10000)
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s.handlerCache.SetCap(10000)
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2017-12-26 11:46:48 +08:00
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for _, v := range strings.Split(gHTTP_METHODS, ",") {
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s.methodsMap[v] = true
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}
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2017-12-08 12:03:21 +08:00
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s.SetConfig(defaultServerConfig)
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2018-04-20 23:23:42 +08:00
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serverMapping.Set(sname, s)
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2017-12-08 12:03:21 +08:00
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return s
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2017-12-07 14:57:16 +08:00
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}
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2018-05-13 14:04:37 +08:00
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// 作为守护协程异步执行(当同一进程中存在多个Web Server时,需要采用这种方式执行)
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// 需要结合Wait方式一起使用
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func (s *Server) Start() error {
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2018-05-31 12:07:31 +08:00
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// 如果设置了静态文件目录,那么严格按照静态文件目录进行检索
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// 否则,默认使用当前可执行文件目录,并且如果是开发环境,默认也会添加main包的源码目录路径做为二级检索
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if s.config.ServerRoot != "" {
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s.paths.Set(s.config.ServerRoot)
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} else {
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s.paths.Set(gfile.SelfDir())
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if p := gfile.MainPkgPath(); gfile.Exists(p) {
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s.paths.Add(p)
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}
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}
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2017-12-08 12:03:21 +08:00
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if s.status == 1 {
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return errors.New("server is already running")
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}
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2017-11-23 10:21:28 +08:00
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// 底层http server配置
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if s.config.Handler == nil {
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s.config.Handler = http.HandlerFunc(s.defaultHttpHandle)
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}
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2018-06-01 00:11:45 +08:00
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// 启动http server
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2018-06-01 18:19:54 +08:00
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reloaded := false
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2018-06-01 00:11:45 +08:00
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fdMapStr := genv.Get(gADMIN_ACTION_RELOAD_ENVKEY)
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if len(fdMapStr) > 0 {
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sfm := bufferToServerFdMap([]byte(fdMapStr))
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2018-06-01 18:19:54 +08:00
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if v, ok := sfm[s.name]; ok {
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s.startServer(v)
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reloaded = true
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2018-06-01 00:11:45 +08:00
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}
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2018-06-01 18:19:54 +08:00
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}
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if !reloaded {
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s.startServer(nil)
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2018-06-01 00:11:45 +08:00
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}
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2018-05-06 22:35:08 +08:00
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// 开启异步关闭队列处理循环
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2018-03-13 14:41:49 +08:00
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s.startCloseQueueLoop()
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2018-05-13 14:04:37 +08:00
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return nil
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}
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2018-04-27 22:12:11 +08:00
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2018-05-13 14:04:37 +08:00
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// 阻塞执行监听
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func (s *Server) Run() error {
|
|
|
|
|
if err := s.Start(); err != nil {
|
|
|
|
|
return err
|
|
|
|
|
}
|
2018-05-11 12:57:05 +08:00
|
|
|
|
// 阻塞等待服务执行完成
|
2018-05-10 23:52:09 +08:00
|
|
|
|
<- doneChan
|
2018-06-01 00:11:45 +08:00
|
|
|
|
|
|
|
|
|
glog.Printfln("%d: all servers shutdown", gproc.Pid())
|
2018-05-10 19:16:41 +08:00
|
|
|
|
return nil
|
|
|
|
|
}
|
2018-05-10 17:48:47 +08:00
|
|
|
|
|
2018-05-13 14:04:37 +08:00
|
|
|
|
|
|
|
|
|
// 阻塞等待所有Web Server停止,常用于多Web Server场景,以及需要将Web Server异步运行的场景
|
|
|
|
|
// 这是一个与进程相关的方法
|
|
|
|
|
func Wait() {
|
2018-06-01 00:11:45 +08:00
|
|
|
|
// 阻塞等待服务执行完成
|
2018-05-13 14:04:37 +08:00
|
|
|
|
<- doneChan
|
2018-06-01 00:11:45 +08:00
|
|
|
|
|
|
|
|
|
glog.Printfln("%d: all servers shutdown", gproc.Pid())
|
2018-05-13 14:04:37 +08:00
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
2018-05-10 19:16:41 +08:00
|
|
|
|
// 开启底层Web Server执行
|
2018-05-10 23:52:09 +08:00
|
|
|
|
func (s *Server) startServer(fdMap listenerFdMap) {
|
2018-05-13 22:00:10 +08:00
|
|
|
|
var httpsEnabled bool
|
2018-04-23 19:22:59 +08:00
|
|
|
|
if len(s.config.HTTPSCertPath) > 0 && len(s.config.HTTPSKeyPath) > 0 {
|
2018-05-13 22:00:10 +08:00
|
|
|
|
// ================
|
2018-04-23 19:22:59 +08:00
|
|
|
|
// HTTPS
|
2018-05-13 22:00:10 +08:00
|
|
|
|
// ================
|
2018-04-27 22:12:11 +08:00
|
|
|
|
if len(s.config.HTTPSAddr) == 0 {
|
|
|
|
|
if len(s.config.Addr) > 0 {
|
|
|
|
|
s.config.HTTPSAddr = s.config.Addr
|
2018-05-13 22:00:10 +08:00
|
|
|
|
s.config.Addr = ""
|
2018-04-27 22:12:11 +08:00
|
|
|
|
} else {
|
|
|
|
|
s.config.HTTPSAddr = gDEFAULT_HTTPS_ADDR
|
|
|
|
|
}
|
2018-04-23 19:22:59 +08:00
|
|
|
|
}
|
2018-05-13 22:00:10 +08:00
|
|
|
|
httpsEnabled = len(s.config.HTTPSAddr) > 0
|
2018-05-10 19:16:41 +08:00
|
|
|
|
var array []string
|
|
|
|
|
if v, ok := fdMap["https"]; ok && len(v) > 0 {
|
|
|
|
|
array = strings.Split(v, ",")
|
|
|
|
|
} else {
|
|
|
|
|
array = strings.Split(s.config.HTTPSAddr, ",")
|
|
|
|
|
}
|
2018-04-29 16:52:44 +08:00
|
|
|
|
for _, v := range array {
|
2018-05-13 22:00:10 +08:00
|
|
|
|
if len(v) == 0 {
|
|
|
|
|
continue
|
|
|
|
|
}
|
2018-05-15 18:34:00 +08:00
|
|
|
|
fd := 0
|
|
|
|
|
addr := v
|
|
|
|
|
array := strings.Split(v, "#")
|
|
|
|
|
if len(array) > 1 {
|
|
|
|
|
addr = array[0]
|
|
|
|
|
// windows系统不支持文件描述符传递socket通信平滑交接,因此只能完整重启
|
|
|
|
|
if runtime.GOOS != "windows" {
|
|
|
|
|
fd = gconv.Int(array[1])
|
2018-04-27 22:12:11 +08:00
|
|
|
|
}
|
2018-05-15 18:34:00 +08:00
|
|
|
|
}
|
|
|
|
|
if fd > 0 {
|
|
|
|
|
s.servers = append(s.servers, s.newGracefulServer(addr, fd))
|
|
|
|
|
} else {
|
|
|
|
|
s.servers = append(s.servers, s.newGracefulServer(addr))
|
|
|
|
|
}
|
2018-05-16 21:27:27 +08:00
|
|
|
|
s.servers[len(s.servers) - 1].isHttps = true
|
2018-04-23 19:22:59 +08:00
|
|
|
|
}
|
2018-04-27 22:12:11 +08:00
|
|
|
|
}
|
2018-05-13 22:00:10 +08:00
|
|
|
|
// ================
|
2018-04-27 22:12:11 +08:00
|
|
|
|
// HTTP
|
2018-05-13 22:00:10 +08:00
|
|
|
|
// ================
|
|
|
|
|
// 当HTTPS服务未启用时,默认HTTP地址才会生效
|
|
|
|
|
if !httpsEnabled && len(s.config.Addr) == 0 {
|
2018-04-27 22:12:11 +08:00
|
|
|
|
s.config.Addr = gDEFAULT_HTTP_ADDR
|
|
|
|
|
}
|
2018-05-10 19:16:41 +08:00
|
|
|
|
var array []string
|
|
|
|
|
if v, ok := fdMap["http"]; ok && len(v) > 0 {
|
|
|
|
|
array = strings.Split(v, ",")
|
|
|
|
|
} else {
|
|
|
|
|
array = strings.Split(s.config.Addr, ",")
|
|
|
|
|
}
|
2018-04-29 16:52:44 +08:00
|
|
|
|
for _, v := range array {
|
2018-05-13 22:00:10 +08:00
|
|
|
|
if len(v) == 0 {
|
|
|
|
|
continue
|
|
|
|
|
}
|
2018-05-15 18:34:00 +08:00
|
|
|
|
fd := 0
|
|
|
|
|
addr := v
|
|
|
|
|
array := strings.Split(v, "#")
|
|
|
|
|
if len(array) > 1 {
|
|
|
|
|
addr = array[0]
|
|
|
|
|
// windows系统不支持文件描述符传递socket通信平滑交接,因此只能完整重启
|
|
|
|
|
if runtime.GOOS != "windows" {
|
|
|
|
|
fd = gconv.Int(array[1])
|
2018-05-14 17:35:54 +08:00
|
|
|
|
}
|
2018-05-15 18:34:00 +08:00
|
|
|
|
}
|
|
|
|
|
if fd > 0 {
|
|
|
|
|
s.servers = append(s.servers, s.newGracefulServer(addr, fd))
|
|
|
|
|
} else {
|
|
|
|
|
s.servers = append(s.servers, s.newGracefulServer(addr))
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
// 开始执行异步监听
|
|
|
|
|
for _, v := range s.servers {
|
|
|
|
|
go func(server *gracefulServer) {
|
|
|
|
|
var err error
|
|
|
|
|
if server.isHttps {
|
|
|
|
|
err = server.ListenAndServeTLS(s.config.HTTPSCertPath, s.config.HTTPSKeyPath)
|
2018-05-08 18:41:29 +08:00
|
|
|
|
} else {
|
2018-05-15 18:34:00 +08:00
|
|
|
|
err = server.ListenAndServe()
|
2018-05-08 18:41:29 +08:00
|
|
|
|
}
|
2018-05-15 18:34:00 +08:00
|
|
|
|
// 如果非关闭错误,那么提示报错,否则认为是正常的服务关闭操作
|
|
|
|
|
if err != nil && !strings.EqualFold(http.ErrServerClosed.Error(), err.Error()) {
|
|
|
|
|
glog.Error(err)
|
2018-04-27 22:12:11 +08:00
|
|
|
|
}
|
2018-04-29 16:52:44 +08:00
|
|
|
|
}(v)
|
2017-11-23 10:21:28 +08:00
|
|
|
|
}
|
2018-04-23 19:22:59 +08:00
|
|
|
|
|
2017-12-07 17:34:51 +08:00
|
|
|
|
s.status = 1
|
2018-05-08 23:38:09 +08:00
|
|
|
|
}
|
|
|
|
|
|
2018-05-10 19:16:41 +08:00
|
|
|
|
// 获取当前监听的文件描述符信息,构造成map返回
|
2018-05-10 23:52:09 +08:00
|
|
|
|
func (s *Server) getListenerFdMap() map[string]string {
|
2018-05-11 12:57:05 +08:00
|
|
|
|
m := map[string]string {
|
2018-05-10 19:16:41 +08:00
|
|
|
|
"https" : "",
|
2018-05-14 17:35:54 +08:00
|
|
|
|
"http" : "",
|
2018-05-10 19:16:41 +08:00
|
|
|
|
}
|
2018-05-14 17:35:54 +08:00
|
|
|
|
// s.servers是从HTTPS到HTTP优先级遍历,解析的时候也应当按照这个顺序读取fd
|
2018-05-10 19:16:41 +08:00
|
|
|
|
for _, v := range s.servers {
|
2018-05-14 17:35:54 +08:00
|
|
|
|
str := v.addr + "#" + gconv.String(v.Fd()) + ","
|
|
|
|
|
if v.isHttps {
|
|
|
|
|
m["https"] += str
|
2018-05-10 19:16:41 +08:00
|
|
|
|
} else {
|
2018-05-14 17:35:54 +08:00
|
|
|
|
m["http"] += str
|
2018-05-10 19:16:41 +08:00
|
|
|
|
}
|
|
|
|
|
}
|
2018-05-14 17:35:54 +08:00
|
|
|
|
// 去掉末尾的","号
|
2018-05-10 19:16:41 +08:00
|
|
|
|
if len(m["https"]) > 0 {
|
|
|
|
|
m["https"] = m["https"][0 : len(m["https"]) - 1]
|
|
|
|
|
}
|
2018-05-14 17:35:54 +08:00
|
|
|
|
if len(m["http"]) > 0 {
|
|
|
|
|
m["http"] = m["http"][0 : len(m["http"]) - 1]
|
|
|
|
|
}
|
|
|
|
|
|
2018-05-10 19:16:41 +08:00
|
|
|
|
return m
|
|
|
|
|
}
|
|
|
|
|
|
2018-04-15 10:30:59 +08:00
|
|
|
|
// 清空当前的handlerCache
|
|
|
|
|
func (s *Server) clearHandlerCache() {
|
|
|
|
|
s.hmcmu.Lock()
|
|
|
|
|
defer s.hmcmu.Unlock()
|
|
|
|
|
s.handlerCache.Close()
|
|
|
|
|
s.handlerCache = gcache.New()
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
// 清空当前的hooksCache
|
|
|
|
|
func (s *Server) clearHooksCache() {
|
|
|
|
|
s.hhcmu.Lock()
|
|
|
|
|
defer s.hhcmu.Unlock()
|
|
|
|
|
s.hooksCache.Close()
|
|
|
|
|
s.hooksCache = gcache.New()
|
2018-04-13 15:19:31 +08:00
|
|
|
|
}
|