Add: listen on random local port

.github/ISSUE_TEMPLATE/bug-report.md

@@ -0,0 +1,19 @@
+---
+name: Bug Report
+about: Report a bug
+labels: kind/bug
+
+---
+
+<!-- Please use this template while reporting a bug and provide as much info as possible. Not doing so may result in your bug not being addressed in a timely manner. Thanks!
+
+-->
+
+
+**What happened**:
+
+**What you expected to happen**:
+
+**How to reproduce it (as minimally and precisely as possible)**:
+
+**Anything else we need to know?**:

.github/ISSUE_TEMPLATE/enhancement.md

@@ -0,0 +1,11 @@
+---
+name: Enhancement Request
+about: Suggest an enhancement
+labels: kind/feature
+
+---
+<!-- Please only use this template for submitting enhancement requests -->
+
+**What would you like to be added**:
+
+**Why is this needed**:

.github/PULL_REQUEST_TEMPLATE.md

@@ -0,0 +1,24 @@
+<!--  Thanks for sending a pull request! 
+-->
+
+**What this PR does**:
+
+**Which issue(s) this PR fixes**:
+<!--
+*Automatically closes linked issue when PR is merged.
+Usage: `Fixes #<issue number>`, or `Fixes (paste link of issue)`.
+_If PR is about `failing-tests or flakes`, please post the related issues/tests in a comment and do not use `Fixes`_*
+-->
+Fixes #
+
+**Special notes for your reviewer**:
+
+**Does this PR introduce a user-facing change?**:
+<!--
+If no, just write "NONE" in the release-note block below.
+If yes, a release note is required:
+Enter your extended release note in the block below. If the PR requires additional action from users switching to the new release, include the string "action required".
+-->
+```release-note
+
+```

.travis.yml

@@ -1,11 +1,16 @@
 language: go
 
+os:
+  - linux
+
 go:
   - "1.13"
 
 env:
   - GO111MODULE=on
 
+install: true
+
 script:
   - go fmt ./... && [[ -z `git status -s` ]]
   - go mod vendor && go test $(go list ./... | grep -v vendor | grep -v demo) -coverprofile=coverage.txt -covermode=atomic

client.go

@@ -153,7 +153,7 @@ func (c *client) dialTCP() Session {
 			return newTCPSession(conn, c)
 		}
 
-		log.Infof("net.DialTimeout(addr:%s, timeout:%v) = error:%+v", c.addr, connectTimeout, err)
+		log.Infof("net.DialTimeout(addr:%s, timeout:%v) = error:%+v", c.addr, connectTimeout, perrors.WithStack(err))
 		<-wheel.After(connectInterval)
 	}
 }
@@ -185,7 +185,7 @@ func (c *client) dialUDP() Session {
 			err = errSelfConnect
 		}
 		if err != nil {
-			log.Warnf("net.DialTimeout(addr:%s, timeout:%v) = error:%+v", c.addr, err)
+			log.Warnf("net.DialTimeout(addr:%s, timeout:%v) = error:%+v", c.addr, perrors.WithStack(err))
 			<-wheel.After(connectInterval)
 			continue
 		}
@@ -194,7 +194,7 @@ func (c *client) dialUDP() Session {
 		conn.SetWriteDeadline(time.Now().Add(1e9))
 		if length, err = conn.Write(connectPingPackage[:]); err != nil {
 			conn.Close()
-			log.Warnf("conn.Write(%s) = {length:%d, err:%+v}", string(connectPingPackage), length, err)
+			log.Warnf("conn.Write(%s) = {length:%d, err:%+v}", string(connectPingPackage), length, perrors.WithStack(err))
 			<-wheel.After(connectInterval)
 			continue
 		}
@@ -204,7 +204,7 @@ func (c *client) dialUDP() Session {
 			err = nil
 		}
 		if err != nil {
-			log.Infof("conn{%#v}.Read() = {length:%d, err:%+v}", conn, length, err)
+			log.Infof("conn{%#v}.Read() = {length:%d, err:%+v}", conn, length, perrors.WithStack(err))
 			conn.Close()
 			<-wheel.After(connectInterval)
 			continue
@@ -229,7 +229,7 @@ func (c *client) dialWS() Session {
 			return nil
 		}
 		conn, _, err = dialer.Dial(c.addr, nil)
-		log.Infof("websocket.dialer.Dial(addr:%s) = error:%+v", c.addr, err)
+		log.Infof("websocket.dialer.Dial(addr:%s) = error:%+v", c.addr, perrors.WithStack(err))
 		if err == nil && gxnet.IsSameAddr(conn.RemoteAddr(), conn.LocalAddr()) {
 			conn.Close()
 			err = errSelfConnect
@@ -243,7 +243,7 @@ func (c *client) dialWS() Session {
 			return ss
 		}
 
-		log.Infof("websocket.dialer.Dial(addr:%s) = error:%+v", c.addr, err)
+		log.Infof("websocket.dialer.Dial(addr:%s) = error:%+v", c.addr, perrors.WithStack(err))
 		<-wheel.After(connectInterval)
 	}
 }
@@ -269,7 +269,7 @@ func (c *client) dialWSS() Session {
 	if c.cert != "" {
 		certPEMBlock, err := ioutil.ReadFile(c.cert)
 		if err != nil {
-			panic(fmt.Sprintf("ioutil.ReadFile(cert:%s) = error:%+v", c.cert, err))
+			panic(fmt.Sprintf("ioutil.ReadFile(cert:%s) = error:%+v", c.cert, perrors.WithStack(err)))
 		}
 
 		var cert tls.Certificate
@@ -291,7 +291,7 @@ func (c *client) dialWSS() Session {
 	for _, c := range config.Certificates {
 		roots, err = x509.ParseCertificates(c.Certificate[len(c.Certificate)-1])
 		if err != nil {
-			panic(fmt.Sprintf("error parsing server's root cert: %+v\n", err))
+			panic(fmt.Sprintf("error parsing server's root cert: %+v\n", perrors.WithStack(err)))
 		}
 		for _, root = range roots {
 			certPool.AddCert(root)
@@ -321,7 +321,7 @@ func (c *client) dialWSS() Session {
 			return ss
 		}
 
-		log.Infof("websocket.dialer.Dial(addr:%s) = error:%+v", c.addr, err)
+		log.Infof("websocket.dialer.Dial(addr:%s) = error:%+v", c.addr, perrors.WithStack(err))
 		<-wheel.After(connectInterval)
 	}
 }
@@ -387,7 +387,7 @@ func (c *client) connect() {
 	}
 }
 
-// there are two methods to keep connection pool. the first approch is like
+// there are two methods to keep connection pool. the first approach is like
 // redigo's lazy connection pool(https://github.com/gomodule/redigo/blob/master/redis/pool.go:),
 // in which you should apply testOnBorrow to check alive of the connection.
 // the second way is as follows. @RunEventLoop detects the aliveness of the connection
@@ -405,13 +405,11 @@ func (c *client) RunEventLoop(newSession NewSessionCallback) {
 func (c *client) reConnect() {
 	var num, max, times, interval int
 
-	// c.Lock()
 	max = c.number
 	interval = c.reconnectInterval
 	if interval == 0 {
 		interval = reconnectInterval
 	}
-	// c.Unlock()
 	for {
 		if c.IsClosed() {
 			log.Warnf("client{peer:%s} goroutine exit now.", c.addr)

client_test.go

@@ -276,6 +276,8 @@ func TestNewWSClient(t *testing.T) {
 	beforeWritePkgNum := atomic.LoadUint32(&conn.writePkgNum)
 	err = ss.WriteBytes([]byte("hello"))
 	assert.Equal(t, beforeWritePkgNum+1, atomic.LoadUint32(&conn.writePkgNum))
+	err = ss.WriteBytesArray([]byte("hello"), []byte("hello"))
+	assert.Equal(t, beforeWritePkgNum+3, atomic.LoadUint32(&conn.writePkgNum))
 	err = conn.writePing()
 	assert.Nil(t, err)
 

go.mod

@@ -1,7 +1,7 @@
 module github.com/dubbogo/getty
 
 require (
-	github.com/dubbogo/gost v1.5.2
+	github.com/dubbogo/gost v1.9.0
 	github.com/golang/snappy v0.0.1
 	github.com/gorilla/websocket v1.4.0
 	github.com/juju/errors v0.0.0-20190930114154-d42613fe1ab9

go.sum

@@ -2,6 +2,8 @@ github.com/davecgh/go-spew v1.1.0 h1:ZDRjVQ15GmhC3fiQ8ni8+OwkZQO4DARzQgrnXU1Liz8
 github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/dubbogo/gost v1.5.2 h1:ri/03971hdpnn3QeCU+4UZgnRNGDXLDGDucR/iozZm8=
 github.com/dubbogo/gost v1.5.2/go.mod h1:pPTjVyoJan3aPxBPNUX0ADkXjPibLo+/Ib0/fADXSG8=
+github.com/dubbogo/gost v1.9.0 h1:UT+dWwvLyJiDotxJERO75jB3Yxgsdy10KztR5ycxRAk=
+github.com/dubbogo/gost v1.9.0/go.mod h1:pPTjVyoJan3aPxBPNUX0ADkXjPibLo+/Ib0/fADXSG8=
 github.com/golang/snappy v0.0.1 h1:Qgr9rKW7uDUkrbSmQeiDsGa8SjGyCOGtuasMWwvp2P4=
 github.com/golang/snappy v0.0.1/go.mod h1:/XxbfmMg8lxefKM7IXC3fBNl/7bRcc72aCRzEWrmP2Q=
 github.com/gorilla/websocket v1.4.0 h1:WDFjx/TMzVgy9VdMMQi2K2Emtwi2QcUQsztZ/zLaH/Q=

server.go

@@ -17,6 +17,7 @@ import (
 	"io/ioutil"
 	"net"
 	"net/http"
+	"strings"
 	"sync"
 	"sync/atomic"
 	"time"
@@ -67,10 +68,6 @@ func newServer(t EndPointType, opts ...ServerOption) *server {
 
 	s.init(opts...)
 
-	if s.addr == "" {
-		panic(fmt.Sprintf("@addr:%s", s.addr))
-	}
-
 	return s
 }
 
@@ -163,9 +160,16 @@ func (s *server) listenTCP() error {
 		streamListener net.Listener
 	)
 
-	streamListener, err = net.Listen("tcp", s.addr)
-	if err != nil {
-		return perrors.Wrapf(err, "net.Listen(tcp, addr:%s))", s.addr)
+	if len(s.addr) == 0 || !strings.Contains(s.addr, ":") {
+		streamListener, err = gxnet.ListenOnTCPRandomPort(s.addr)
+		if err != nil {
+			return perrors.Wrapf(err, "gxnet.ListenOnTCPRandomPort(addr:%s)", s.addr)
+		}
+	} else {
+		streamListener, err = net.Listen("tcp", s.addr)
+		if err != nil {
+			return perrors.Wrapf(err, "net.Listen(tcp, addr:%s)", s.addr)
+		}
 	}
 
 	s.streamListener = streamListener
@@ -180,13 +184,20 @@ func (s *server) listenUDP() error {
 		pktListener *net.UDPConn
 	)
 
-	localAddr, err = net.ResolveUDPAddr("udp", s.addr)
-	if err != nil {
-		return perrors.Wrapf(err, "net.ResolveUDPAddr(udp, addr:%s)", s.addr)
-	}
-	pktListener, err = net.ListenUDP("udp", localAddr)
-	if err != nil {
-		return perrors.Wrapf(err, "net.ListenUDP((udp, localAddr:%#v)", localAddr)
+	if len(s.addr) == 0 || !strings.Contains(s.addr, ":") {
+		pktListener, err = gxnet.ListenOnUDPRandomPort(s.addr)
+		if err != nil {
+			return perrors.Wrapf(err, "gxnet.ListenOnUDPRandomPort(addr:%s)", s.addr)
+		}
+	} else {
+		localAddr, err = net.ResolveUDPAddr("udp", s.addr)
+		if err != nil {
+			return perrors.Wrapf(err, "net.ResolveUDPAddr(udp, addr:%s)", s.addr)
+		}
+		pktListener, err = net.ListenUDP("udp", localAddr)
+		if err != nil {
+			return perrors.Wrapf(err, "net.ListenUDP((udp, localAddr:%#v)", localAddr)
+		}
 	}
 
 	s.pktListener = pktListener
@@ -213,7 +224,7 @@ func (s *server) accept(newSession NewSessionCallback) (Session, error) {
 	}
 	if gxnet.IsSameAddr(conn.RemoteAddr(), conn.LocalAddr()) {
 		log.Warnf("conn.localAddr{%s} == conn.RemoteAddr", conn.LocalAddr().String(), conn.RemoteAddr().String())
-		return nil, errSelfConnect
+		return nil, perrors.WithStack(errSelfConnect)
 	}
 
 	ss := newTCPSession(conn, s)
@@ -237,7 +248,7 @@ func (s *server) runTcpEventLoop(newSession NewSessionCallback) {
 		)
 		for {
 			if s.IsClosed() {
-				log.Warnf("server{%s} stop acceptting client connect request.", s.addr)
+				log.Warnf("server{%s} stop accepting client connect request.", s.addr)
 				return
 			}
 			if delay != 0 {
@@ -256,7 +267,7 @@ func (s *server) runTcpEventLoop(newSession NewSessionCallback) {
 					}
 					continue
 				}
-				log.Warnf("server{%s}.Accept() = err {%+v}", s.addr, err)
+				log.Warnf("server{%s}.Accept() = err {%+v}", s.addr, perrors.WithStack(err))
 				continue
 			}
 			delay = 0
@@ -357,8 +368,7 @@ func (s *server) runWSEventLoop(newSession NewSessionCallback) {
 		s.lock.Unlock()
 		err = server.Serve(s.streamListener)
 		if err != nil {
-			log.Errorf("http.server.Serve(addr{%s}) = err{%+v}", s.addr, err)
-			// panic(err)
+			log.Errorf("http.server.Serve(addr{%s}) = err:%+v", s.addr, perrors.WithStack(err))
 		}
 	}()
 }
@@ -380,8 +390,8 @@ func (s *server) runWSSEventLoop(newSession NewSessionCallback) {
 		defer s.wg.Done()
 
 		if certificate, err = tls.LoadX509KeyPair(s.cert, s.privateKey); err != nil {
-			panic(fmt.Sprintf("tls.LoadX509KeyPair(cert{%s}, privateKey{%s}) = err{%+v}",
-				s.cert, s.privateKey, err))
+			panic(fmt.Sprintf("tls.LoadX509KeyPair(cert{%s}, privateKey{%s}) = err:%+v",
+				s.cert, s.privateKey, perrors.WithStack(err)))
 			return
 		}
 		config = &tls.Config{
@@ -394,7 +404,7 @@ func (s *server) runWSSEventLoop(newSession NewSessionCallback) {
 		if s.caCert != "" {
 			certPem, err = ioutil.ReadFile(s.caCert)
 			if err != nil {
-				panic(fmt.Errorf("ioutil.ReadFile(certFile{%s}) = err{%+v}", s.caCert, err))
+				panic(fmt.Errorf("ioutil.ReadFile(certFile{%s}) = err:%+v", s.caCert, perrors.WithStack(err)))
 			}
 			certPool = x509.NewCertPool()
 			if ok := certPool.AppendCertsFromPEM(certPem); !ok {
@@ -419,7 +429,7 @@ func (s *server) runWSSEventLoop(newSession NewSessionCallback) {
 		s.lock.Unlock()
 		err = server.Serve(tls.NewListener(s.streamListener, config))
 		if err != nil {
-			log.Errorf("http.server.Serve(addr{%s}) = err{%+v}", s.addr, err)
+			log.Errorf("http.server.Serve(addr{%s}) = err:%+v", s.addr, perrors.WithStack(err))
 			panic(err)
 		}
 	}()
@@ -429,7 +439,7 @@ func (s *server) runWSSEventLoop(newSession NewSessionCallback) {
 // @newSession: new connection callback
 func (s *server) RunEventLoop(newSession NewSessionCallback) {
 	if err := s.listen(); err != nil {
-		panic(fmt.Errorf("server.listen() = error:%+v", err))
+		panic(fmt.Errorf("server.listen() = error:%+v", perrors.WithStack(err)))
 	}
 
 	switch s.endPointType {