go语言:200行代码做udp rtp转发并发分布服务器

#mermaid-svg-Ok0Y4m1GR9YbxhLP .label{font-family:'trebuchet ms', verdana, arial;font-family:var(--mermaid-font-family);fill:#333;color:#333}#mermaid-svg-Ok0Y4m1GR9YbxhLP .label text{fill:#333}#mermaid-svg-Ok0Y4m1GR9YbxhLP .node rect,#mermaid-svg-Ok0Y4m1GR9YbxhLP .node circle,#mermaid-svg-Ok0Y4m1GR9YbxhLP .node ellipse,#mermaid-svg-Ok0Y4m1GR9YbxhLP .node polygon,#mermaid-svg-Ok0Y4m1GR9YbxhLP .node path{fill:#ECECFF;stroke:#9370db;stroke-width:1px}#mermaid-svg-Ok0Y4m1GR9YbxhLP .node .label{text-align:center;fill:#333}#mermaid-svg-Ok0Y4m1GR9YbxhLP .node.clickable{cursor:pointer}#mermaid-svg-Ok0Y4m1GR9YbxhLP .arrowheadPath{fill:#333}#mermaid-svg-Ok0Y4m1GR9YbxhLP .edgePath .path{stroke:#333;stroke-width:1.5px}#mermaid-svg-Ok0Y4m1GR9YbxhLP .flowchart-link{stroke:#333;fill:none}#mermaid-svg-Ok0Y4m1GR9YbxhLP .edgeLabel{background-color:#e8e8e8;text-align:center}#mermaid-svg-Ok0Y4m1GR9YbxhLP .edgeLabel rect{opacity:0.9}#mermaid-svg-Ok0Y4m1GR9YbxhLP .edgeLabel span{color:#333}#mermaid-svg-Ok0Y4m1GR9YbxhLP .cluster rect{fill:#ffffde;stroke:#aa3;stroke-width:1px}#mermaid-svg-Ok0Y4m1GR9YbxhLP .cluster text{fill:#333}#mermaid-svg-Ok0Y4m1GR9YbxhLP div.mermaidTooltip{position:absolute;text-align:center;max-width:200px;padding:2px;font-family:'trebuchet ms', verdana, arial;font-family:var(--mermaid-font-family);font-size:12px;background:#ffffde;border:1px solid #aa3;border-radius:2px;pointer-events:none;z-index:100}#mermaid-svg-Ok0Y4m1GR9YbxhLP .actor{stroke:#ccf;fill:#ECECFF}#mermaid-svg-Ok0Y4m1GR9YbxhLP text.actor>tspan{fill:#000;stroke:none}#mermaid-svg-Ok0Y4m1GR9YbxhLP .actor-line{stroke:grey}#mermaid-svg-Ok0Y4m1GR9YbxhLP .messageLine0{stroke-width:1.5;stroke-dasharray:none;stroke:#333}#mermaid-svg-Ok0Y4m1GR9YbxhLP .messageLine1{stroke-width:1.5;stroke-dasharray:2, 2;stroke:#333}#mermaid-svg-Ok0Y4m1GR9YbxhLP #arrowhead path{fill:#333;stroke:#333}#mermaid-svg-Ok0Y4m1GR9YbxhLP .sequenceNumber{fill:#fff}#mermaid-svg-Ok0Y4m1GR9YbxhLP #sequencenumber{fill:#333}#mermaid-svg-Ok0Y4m1GR9YbxhLP #crosshead path{fill:#333;stroke:#333}#mermaid-svg-Ok0Y4m1GR9YbxhLP .messageText{fill:#333;stroke:#333}#mermaid-svg-Ok0Y4m1GR9YbxhLP .labelBox{stroke:#ccf;fill:#ECECFF}#mermaid-svg-Ok0Y4m1GR9YbxhLP .labelText,#mermaid-svg-Ok0Y4m1GR9YbxhLP .labelText>tspan{fill:#000;stroke:none}#mermaid-svg-Ok0Y4m1GR9YbxhLP .loopText,#mermaid-svg-Ok0Y4m1GR9YbxhLP .loopText>tspan{fill:#000;stroke:none}#mermaid-svg-Ok0Y4m1GR9YbxhLP .loopLine{stroke-width:2px;stroke-dasharray:2, 2;stroke:#ccf;fill:#ccf}#mermaid-svg-Ok0Y4m1GR9YbxhLP .note{stroke:#aa3;fill:#fff5ad}#mermaid-svg-Ok0Y4m1GR9YbxhLP .noteText,#mermaid-svg-Ok0Y4m1GR9YbxhLP .noteText>tspan{fill:#000;stroke:none}#mermaid-svg-Ok0Y4m1GR9YbxhLP .activation0{fill:#f4f4f4;stroke:#666}#mermaid-svg-Ok0Y4m1GR9YbxhLP .activation1{fill:#f4f4f4;stroke:#666}#mermaid-svg-Ok0Y4m1GR9YbxhLP .activation2{fill:#f4f4f4;stroke:#666}#mermaid-svg-Ok0Y4m1GR9YbxhLP .mermaid-main-font{font-family:"trebuchet ms", verdana, arial;font-family:var(--mermaid-font-family)}#mermaid-svg-Ok0Y4m1GR9YbxhLP .section{stroke:none;opacity:0.2}#mermaid-svg-Ok0Y4m1GR9YbxhLP .section0{fill:rgba(102,102,255,0.49)}#mermaid-svg-Ok0Y4m1GR9YbxhLP .section2{fill:#fff400}#mermaid-svg-Ok0Y4m1GR9YbxhLP .section1,#mermaid-svg-Ok0Y4m1GR9YbxhLP .section3{fill:#fff;opacity:0.2}#mermaid-svg-Ok0Y4m1GR9YbxhLP .sectionTitle0{fill:#333}#mermaid-svg-Ok0Y4m1GR9YbxhLP .sectionTitle1{fill:#333}#mermaid-svg-Ok0Y4m1GR9YbxhLP .sectionTitle2{fill:#333}#mermaid-svg-Ok0Y4m1GR9YbxhLP .sectionTitle3{fill:#333}#mermaid-svg-Ok0Y4m1GR9YbxhLP .sectionTitle{text-anchor:start;font-size:11px;text-height:14px;font-family:'trebuchet ms', verdana, arial;font-family:var(--mermaid-font-family)}#mermaid-svg-Ok0Y4m1GR9YbxhLP .grid .tick{stroke:#d3d3d3;opacity:0.8;shape-rendering:crispEdges}#mermaid-svg-Ok0Y4m1GR9YbxhLP .grid .tick text{font-family:'trebuchet ms', verdana, arial;font-family:var(--mermaid-font-family)}#mermaid-svg-Ok0Y4m1GR9YbxhLP .grid path{stroke-width:0}#mermaid-svg-Ok0Y4m1GR9YbxhLP .today{fill:none;stroke:red;stroke-width:2px}#mermaid-svg-Ok0Y4m1GR9YbxhLP .task{stroke-width:2}#mermaid-svg-Ok0Y4m1GR9YbxhLP .taskText{text-anchor:middle;font-family:'trebuchet ms', verdana, arial;font-family:var(--mermaid-font-family)}#mermaid-svg-Ok0Y4m1GR9YbxhLP .taskText:not([font-size]){font-size:11px}#mermaid-svg-Ok0Y4m1GR9YbxhLP .taskTextOutsideRight{fill:#000;text-anchor:start;font-size:11px;font-family:'trebuchet ms', verdana, arial;font-family:var(--mermaid-font-family)}#mermaid-svg-Ok0Y4m1GR9YbxhLP .taskTextOutsideLeft{fill:#000;text-anchor:end;font-size:11px}#mermaid-svg-Ok0Y4m1GR9YbxhLP .task.clickable{cursor:pointer}#mermaid-svg-Ok0Y4m1GR9YbxhLP .taskText.clickable{cursor:pointer;fill:#003163 !important;font-weight:bold}#mermaid-svg-Ok0Y4m1GR9YbxhLP .taskTextOutsideLeft.clickable{cursor:pointer;fill:#003163 !important;font-weight:bold}#mermaid-svg-Ok0Y4m1GR9YbxhLP .taskTextOutsideRight.clickable{cursor:pointer;fill:#003163 !important;font-weight:bold}#mermaid-svg-Ok0Y4m1GR9YbxhLP .taskText0,#mermaid-svg-Ok0Y4m1GR9YbxhLP .taskText1,#mermaid-svg-Ok0Y4m1GR9YbxhLP .taskText2,#mermaid-svg-Ok0Y4m1GR9YbxhLP .taskText3{fill:#fff}#mermaid-svg-Ok0Y4m1GR9YbxhLP .task0,#mermaid-svg-Ok0Y4m1GR9YbxhLP .task1,#mermaid-svg-Ok0Y4m1GR9YbxhLP .task2,#mermaid-svg-Ok0Y4m1GR9YbxhLP .task3{fill:#8a90dd;stroke:#534fbc}#mermaid-svg-Ok0Y4m1GR9YbxhLP .taskTextOutside0,#mermaid-svg-Ok0Y4m1GR9YbxhLP .taskTextOutside2{fill:#000}#mermaid-svg-Ok0Y4m1GR9YbxhLP .taskTextOutside1,#mermaid-svg-Ok0Y4m1GR9YbxhLP .taskTextOutside3{fill:#000}#mermaid-svg-Ok0Y4m1GR9YbxhLP .active0,#mermaid-svg-Ok0Y4m1GR9YbxhLP .active1,#mermaid-svg-Ok0Y4m1GR9YbxhLP .active2,#mermaid-svg-Ok0Y4m1GR9YbxhLP .active3{fill:#bfc7ff;stroke:#534fbc}#mermaid-svg-Ok0Y4m1GR9YbxhLP .activeText0,#mermaid-svg-Ok0Y4m1GR9YbxhLP .activeText1,#mermaid-svg-Ok0Y4m1GR9YbxhLP .activeText2,#mermaid-svg-Ok0Y4m1GR9YbxhLP .activeText3{fill:#000 !important}#mermaid-svg-Ok0Y4m1GR9YbxhLP .done0,#mermaid-svg-Ok0Y4m1GR9YbxhLP .done1,#mermaid-svg-Ok0Y4m1GR9YbxhLP .done2,#mermaid-svg-Ok0Y4m1GR9YbxhLP .done3{stroke:grey;fill:#d3d3d3;stroke-width:2}#mermaid-svg-Ok0Y4m1GR9YbxhLP .doneText0,#mermaid-svg-Ok0Y4m1GR9YbxhLP .doneText1,#mermaid-svg-Ok0Y4m1GR9YbxhLP .doneText2,#mermaid-svg-Ok0Y4m1GR9YbxhLP .doneText3{fill:#000 !important}#mermaid-svg-Ok0Y4m1GR9YbxhLP .crit0,#mermaid-svg-Ok0Y4m1GR9YbxhLP .crit1,#mermaid-svg-Ok0Y4m1GR9YbxhLP .crit2,#mermaid-svg-Ok0Y4m1GR9YbxhLP .crit3{stroke:#f88;fill:red;stroke-width:2}#mermaid-svg-Ok0Y4m1GR9YbxhLP .activeCrit0,#mermaid-svg-Ok0Y4m1GR9YbxhLP .activeCrit1,#mermaid-svg-Ok0Y4m1GR9YbxhLP .activeCrit2,#mermaid-svg-Ok0Y4m1GR9YbxhLP .activeCrit3{stroke:#f88;fill:#bfc7ff;stroke-width:2}#mermaid-svg-Ok0Y4m1GR9YbxhLP .doneCrit0,#mermaid-svg-Ok0Y4m1GR9YbxhLP .doneCrit1,#mermaid-svg-Ok0Y4m1GR9YbxhLP .doneCrit2,#mermaid-svg-Ok0Y4m1GR9YbxhLP .doneCrit3{stroke:#f88;fill:#d3d3d3;stroke-width:2;cursor:pointer;shape-rendering:crispEdges}#mermaid-svg-Ok0Y4m1GR9YbxhLP .milestone{transform:rotate(45deg) scale(0.8, 0.8)}#mermaid-svg-Ok0Y4m1GR9YbxhLP .milestoneText{font-style:italic}#mermaid-svg-Ok0Y4m1GR9YbxhLP .doneCritText0,#mermaid-svg-Ok0Y4m1GR9YbxhLP .doneCritText1,#mermaid-svg-Ok0Y4m1GR9YbxhLP .doneCritText2,#mermaid-svg-Ok0Y4m1GR9YbxhLP .doneCritText3{fill:#000 !important}#mermaid-svg-Ok0Y4m1GR9YbxhLP .activeCritText0,#mermaid-svg-Ok0Y4m1GR9YbxhLP .activeCritText1,#mermaid-svg-Ok0Y4m1GR9YbxhLP .activeCritText2,#mermaid-svg-Ok0Y4m1GR9YbxhLP .activeCritText3{fill:#000 !important}#mermaid-svg-Ok0Y4m1GR9YbxhLP .titleText{text-anchor:middle;font-size:18px;fill:#000;font-family:'trebuchet ms', verdana, arial;font-family:var(--mermaid-font-family)}#mermaid-svg-Ok0Y4m1GR9YbxhLP g.classGroup text{fill:#9370db;stroke:none;font-family:'trebuchet ms', verdana, arial;font-family:var(--mermaid-font-family);font-size:10px}#mermaid-svg-Ok0Y4m1GR9YbxhLP g.classGroup text .title{font-weight:bolder}#mermaid-svg-Ok0Y4m1GR9YbxhLP g.clickable{cursor:pointer}#mermaid-svg-Ok0Y4m1GR9YbxhLP g.classGroup rect{fill:#ECECFF;stroke:#9370db}#mermaid-svg-Ok0Y4m1GR9YbxhLP g.classGroup line{stroke:#9370db;stroke-width:1}#mermaid-svg-Ok0Y4m1GR9YbxhLP .classLabel .box{stroke:none;stroke-width:0;fill:#ECECFF;opacity:0.5}#mermaid-svg-Ok0Y4m1GR9YbxhLP .classLabel .label{fill:#9370db;font-size:10px}#mermaid-svg-Ok0Y4m1GR9YbxhLP .relation{stroke:#9370db;stroke-width:1;fill:none}#mermaid-svg-Ok0Y4m1GR9YbxhLP .dashed-line{stroke-dasharray:3}#mermaid-svg-Ok0Y4m1GR9YbxhLP #compositionStart{fill:#9370db;stroke:#9370db;stroke-width:1}#mermaid-svg-Ok0Y4m1GR9YbxhLP #compositionEnd{fill:#9370db;stroke:#9370db;stroke-width:1}#mermaid-svg-Ok0Y4m1GR9YbxhLP #aggregationStart{fill:#ECECFF;stroke:#9370db;stroke-width:1}#mermaid-svg-Ok0Y4m1GR9YbxhLP #aggregationEnd{fill:#ECECFF;stroke:#9370db;stroke-width:1}#mermaid-svg-Ok0Y4m1GR9YbxhLP #dependencyStart{fill:#9370db;stroke:#9370db;stroke-width:1}#mermaid-svg-Ok0Y4m1GR9YbxhLP #dependencyEnd{fill:#9370db;stroke:#9370db;stroke-width:1}#mermaid-svg-Ok0Y4m1GR9YbxhLP #extensionStart{fill:#9370db;stroke:#9370db;stroke-width:1}#mermaid-svg-Ok0Y4m1GR9YbxhLP #extensionEnd{fill:#9370db;stroke:#9370db;stroke-width:1}#mermaid-svg-Ok0Y4m1GR9YbxhLP .commit-id,#mermaid-svg-Ok0Y4m1GR9YbxhLP .commit-msg,#mermaid-svg-Ok0Y4m1GR9YbxhLP .branch-label{fill:lightgrey;color:lightgrey;font-family:'trebuchet ms', verdana, arial;font-family:var(--mermaid-font-family)}#mermaid-svg-Ok0Y4m1GR9YbxhLP .pieTitleText{text-anchor:middle;font-size:25px;fill:#000;font-family:'trebuchet ms', verdana, arial;font-family:var(--mermaid-font-family)}#mermaid-svg-Ok0Y4m1GR9YbxhLP .slice{font-family:'trebuchet ms', verdana, arial;font-family:var(--mermaid-font-family)}#mermaid-svg-Ok0Y4m1GR9YbxhLP g.stateGroup text{fill:#9370db;stroke:none;font-size:10px;font-family:'trebuchet ms', verdana, arial;font-family:var(--mermaid-font-family)}#mermaid-svg-Ok0Y4m1GR9YbxhLP g.stateGroup text{fill:#9370db;fill:#333;stroke:none;font-size:10px}#mermaid-svg-Ok0Y4m1GR9YbxhLP g.statediagram-cluster .cluster-label text{fill:#333}#mermaid-svg-Ok0Y4m1GR9YbxhLP g.stateGroup .state-title{font-weight:bolder;fill:#000}#mermaid-svg-Ok0Y4m1GR9YbxhLP g.stateGroup rect{fill:#ECECFF;stroke:#9370db}#mermaid-svg-Ok0Y4m1GR9YbxhLP g.stateGroup line{stroke:#9370db;stroke-width:1}#mermaid-svg-Ok0Y4m1GR9YbxhLP .transition{stroke:#9370db;stroke-width:1;fill:none}#mermaid-svg-Ok0Y4m1GR9YbxhLP .stateGroup .composit{fill:white;border-bottom:1px}#mermaid-svg-Ok0Y4m1GR9YbxhLP .stateGroup .alt-composit{fill:#e0e0e0;border-bottom:1px}#mermaid-svg-Ok0Y4m1GR9YbxhLP .state-note{stroke:#aa3;fill:#fff5ad}#mermaid-svg-Ok0Y4m1GR9YbxhLP .state-note text{fill:black;stroke:none;font-size:10px}#mermaid-svg-Ok0Y4m1GR9YbxhLP .stateLabel .box{stroke:none;stroke-width:0;fill:#ECECFF;opacity:0.7}#mermaid-svg-Ok0Y4m1GR9YbxhLP .edgeLabel text{fill:#333}#mermaid-svg-Ok0Y4m1GR9YbxhLP .stateLabel text{fill:#000;font-size:10px;font-weight:bold;font-family:'trebuchet ms', verdana, arial;font-family:var(--mermaid-font-family)}#mermaid-svg-Ok0Y4m1GR9YbxhLP .node circle.state-start{fill:black;stroke:black}#mermaid-svg-Ok0Y4m1GR9YbxhLP .node circle.state-end{fill:black;stroke:white;stroke-width:1.5}#mermaid-svg-Ok0Y4m1GR9YbxhLP #statediagram-barbEnd{fill:#9370db}#mermaid-svg-Ok0Y4m1GR9YbxhLP .statediagram-cluster rect{fill:#ECECFF;stroke:#9370db;stroke-width:1px}#mermaid-svg-Ok0Y4m1GR9YbxhLP .statediagram-cluster rect.outer{rx:5px;ry:5px}#mermaid-svg-Ok0Y4m1GR9YbxhLP .statediagram-state .divider{stroke:#9370db}#mermaid-svg-Ok0Y4m1GR9YbxhLP .statediagram-state .title-state{rx:5px;ry:5px}#mermaid-svg-Ok0Y4m1GR9YbxhLP .statediagram-cluster.statediagram-cluster .inner{fill:white}#mermaid-svg-Ok0Y4m1GR9YbxhLP .statediagram-cluster.statediagram-cluster-alt .inner{fill:#e0e0e0}#mermaid-svg-Ok0Y4m1GR9YbxhLP .statediagram-cluster .inner{rx:0;ry:0}#mermaid-svg-Ok0Y4m1GR9YbxhLP .statediagram-state rect.basic{rx:5px;ry:5px}#mermaid-svg-Ok0Y4m1GR9YbxhLP .statediagram-state rect.divider{stroke-dasharray:10,10;fill:#efefef}#mermaid-svg-Ok0Y4m1GR9YbxhLP .note-edge{stroke-dasharray:5}#mermaid-svg-Ok0Y4m1GR9YbxhLP .statediagram-note rect{fill:#fff5ad;stroke:#aa3;stroke-width:1px;rx:0;ry:0}:root{--mermaid-font-family: '"trebuchet ms", verdana, arial';--mermaid-font-family: "Comic Sans MS", "Comic Sans", cursive}#mermaid-svg-Ok0Y4m1GR9YbxhLP .error-icon{fill:#522}#mermaid-svg-Ok0Y4m1GR9YbxhLP .error-text{fill:#522;stroke:#522}#mermaid-svg-Ok0Y4m1GR9YbxhLP .edge-thickness-normal{stroke-width:2px}#mermaid-svg-Ok0Y4m1GR9YbxhLP .edge-thickness-thick{stroke-width:3.5px}#mermaid-svg-Ok0Y4m1GR9YbxhLP .edge-pattern-solid{stroke-dasharray:0}#mermaid-svg-Ok0Y4m1GR9YbxhLP .edge-pattern-dashed{stroke-dasharray:3}#mermaid-svg-Ok0Y4m1GR9YbxhLP .edge-pattern-dotted{stroke-dasharray:2}#mermaid-svg-Ok0Y4m1GR9YbxhLP .marker{fill:#333}#mermaid-svg-Ok0Y4m1GR9YbxhLP .marker.cross{stroke:#333} :root { --mermaid-font-family: "trebuchet ms", verdana, arial;} #mermaid-svg-Ok0Y4m1GR9YbxhLP { color: rgba(0, 0, 0, 0.75); font: ; }

package main
import (
	"io"
    "fmt"
    "net"
	"net/http"
    "os"
	"log"
	"container/list"
)


type s_client struct{
    num int
    name string
	*net.UDPAddr
}
 
var g_client = list.New()
//var g_clients map[uint]list //uint 是ssrc，list是请求的链表
var limitChan = make(chan bool, 1000)
// hello world, the web server
func HelloServer(w http.ResponseWriter, req *http.Request) {
	//返回服务器的端口地址，可以有多个服务器来进行负载均衡
    io.WriteString(w, "127.0.0.1:8080")
}
// UDP goroutine concurrency to read UDP maybe not parallelism,maybe in onethread maybe in multi thread,maybe yes,maybe no
func udpProcess(conn *net.UDPConn)  {
    data := make([]byte, 1024)
    n,remoteAddr,err := conn.ReadFromUDP(data)
    if err != nil {
        fmt.Println("Failed To Read UDP Msg, Error: " + err.Error())
    }

    //var flag = 0x80
	if(data[0] == 0x80){//RTP 协议
		if n