Bump up gnet to v2 (#7160)

frameworks/Go/gnet/gnet.dockerfile

@@ -1,4 +1,4 @@
-FROM golang:1.14
+FROM golang:1.17
 
 ENV GO111MODULE on
 
@@ -6,7 +6,7 @@ WORKDIR /gnet
 
 COPY ./src /gnet
 
-RUN go mod download
+RUN go mod tidy
 
 RUN go build -o app -gcflags="-l=4" -ldflags="-s -w" .
 

frameworks/Go/gnet/src/go.mod

@@ -1,5 +1,9 @@
 module gnet
 
-go 1.14
+go 1.17
 
-require github.com/panjf2000/gnet v1.0.1
+require (
+	github.com/evanphx/wildcat v0.0.0-20141114174135-e7012f664567
+	github.com/panjf2000/gnet/v2 v2.0.0
+	github.com/vektra/errors v0.0.0-20140903201135-c64d83aba85a // indirect
+)

frameworks/Go/gnet/src/go.sum

@@ -1,31 +1,85 @@
+github.com/BurntSushi/toml v0.3.1 h1:WXkYYl6Yr3qBf1K79EBnL4mak0OimBfB0XUf9Vl28OQ=
+github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU=
+github.com/benbjohnson/clock v1.1.0 h1:Q92kusRqC1XV2MjkWETPvjJVqKetz1OzxZB7mHJLju8=
+github.com/benbjohnson/clock v1.1.0/go.mod h1:J11/hYXuz8f4ySSvYwY0FKfm+ezbsZBKZxNJlLklBHA=
 github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
 github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
-github.com/libp2p/go-reuseport v0.0.1 h1:7PhkfH73VXfPJYKQ6JwS5I/eVcoyYi9IMNGc6FWpFLw=
-github.com/libp2p/go-reuseport v0.0.1/go.mod h1:jn6RmB1ufnQwl0Q1f+YxAj8isJgDCQzaaxIFYDhcYEA=
-github.com/panjf2000/ants/v2 v2.3.1 h1:9iOZHO5XlSO1Gs5K7x06uDFy8bkicWlhOKGh/TufAZg=
-github.com/panjf2000/ants/v2 v2.3.1/go.mod h1:LtwNaBX6OeF5qRtQlaeGndalVwJlS2ueur7uwoAHbPA=
-github.com/panjf2000/gnet v1.0.1 h1:IhaLkjtdtJax5N1uwRUnCIbkDV8bIeLTvReShNFw4AI=
-github.com/panjf2000/gnet v1.0.1/go.mod h1:Ux2Nc2pRFNk57YpDhHaZ9jaB4taAiqMBkcAWe/mWxmI=
+github.com/evanphx/wildcat v0.0.0-20141114174135-e7012f664567 h1:7+oQw6YjB/kk9x27AEC7DMXudqERHD583hZpno18lRw=
+github.com/evanphx/wildcat v0.0.0-20141114174135-e7012f664567/go.mod h1:XNGflD53X+hfdCAt1NGeBUgiUpe9QmweW/zI1gV26Zw=
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+github.com/kr/pty v1.1.1/go.mod h1:pFQYn66WHrOpPYNljwOMqo10TkYh1fy3cYio2l3bCsQ=
+github.com/kr/text v0.1.0 h1:45sCR5RtlFHMR4UwH9sdQ5TC8v0qDQCHnXt+kaKSTVE=
+github.com/kr/text v0.1.0/go.mod h1:4Jbv+DJW3UT/LiOwJeYQe1efqtUx/iVham/4vfdArNI=
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 github.com/pkg/errors v0.8.1 h1:iURUrRGxPUNPdy5/HRSm+Yj6okJ6UtLINN0Q9M4+h3I=
 github.com/pkg/errors v0.8.1/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINEl0=
-github.com/pkg/errors v0.9.1 h1:FEBLx1zS214owpjy7qsBeixbURkuhQAwrK5UwLGTwt4=
-github.com/pkg/errors v0.9.1/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINEl0=
 github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
 github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
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 github.com/valyala/bytebufferpool v1.0.0/go.mod h1:6bBcMArwyJ5K/AmCkWv1jt77kVWyCJ6HpOuEn7z0Csc=
-golang.org/x/sys v0.0.0-20190228124157-a34e9553db1e/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
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 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
+gopkg.in/check.v1 v1.0.0-20180628173108-788fd7840127 h1:qIbj1fsPNlZgppZ+VLlY7N33q108Sa+fhmuc+sWQYwY=
+gopkg.in/check.v1 v1.0.0-20180628173108-788fd7840127/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
+gopkg.in/natefinch/lumberjack.v2 v2.0.0 h1:1Lc07Kr7qY4U2YPouBjpCLxpiyxIVoxqXgkXLknAOE8=
+gopkg.in/natefinch/lumberjack.v2 v2.0.0/go.mod h1:l0ndWWf7gzL7RNwBG7wST/UCcT4T24xpD6X8LsfU/+k=
 gopkg.in/yaml.v2 v2.2.2/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
-gopkg.in/yaml.v2 v2.2.7 h1:VUgggvou5XRW9mHwD/yXxIYSMtY0zoKQf/v226p2nyo=
 gopkg.in/yaml.v2 v2.2.7/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
+gopkg.in/yaml.v2 v2.2.8 h1:obN1ZagJSUGI0Ek/LBmuj4SNLPfIny3KsKFopxRdj10=
+gopkg.in/yaml.v2 v2.2.8/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
+gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
+gopkg.in/yaml.v3 v3.0.0-20210107192922-496545a6307b h1:h8qDotaEPuJATrMmW04NCwg7v22aHH28wwpauUhK9Oo=
+gopkg.in/yaml.v3 v3.0.0-20210107192922-496545a6307b/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=

frameworks/Go/gnet/src/main.go

@@ -1,63 +1,99 @@
 package main
 
 import (
-	"bytes"
 	"flag"
 	"fmt"
 	"log"
 	"runtime"
+	"sync/atomic"
 	"time"
 
-	"github.com/panjf2000/gnet"
+	"github.com/evanphx/wildcat"
+	"github.com/panjf2000/gnet/v2"
+)
+
+var (
+	errMsg      = "Internal Server Error"
+	errMsgBytes = []byte(errMsg)
 )
 
 type httpServer struct {
-	*gnet.EventServer
+	gnet.BuiltinEventEngine
+
+	addr      string
+	multicore bool
+	eng       gnet.Engine
 }
 
 type httpCodec struct {
-	delimiter []byte
+	parser *wildcat.HTTPParser
+	buf    []byte
 }
 
-func (hc *httpCodec) Encode(c gnet.Conn, buf []byte) (out []byte, err error) {
-	return buf, nil
+func (hc *httpCodec) appendResponse() {
+	hc.buf = append(hc.buf, "HTTP/1.1 200 OK\r\nServer: gnet\r\nContent-Type: text/plain\r\nDate: "...)
+	//hc.buf = time.Now().AppendFormat(hc.buf, "Mon, 02 Jan 2006 15:04:05 GMT")
+	hc.buf = append(hc.buf, NowTimeFormat()...)
+	hc.buf = append(hc.buf, "\r\nContent-Length: 13\r\n\r\nHello, World!"...)
 }
 
-func (hc *httpCodec) Decode(c gnet.Conn) (out []byte, err error) {
-	buf := c.Read()
-	if buf == nil {
-		return
-	}
-	c.ResetBuffer()
+func (hs *httpServer) OnBoot(eng gnet.Engine) gnet.Action {
+	hs.eng = eng
+	log.Printf("echo server with multi-core=%t is listening on %s\n", hs.multicore, hs.addr)
+	return gnet.None
+}
+
+func (hs *httpServer) OnOpen(c gnet.Conn) ([]byte, gnet.Action) {
+	c.SetContext(&httpCodec{parser: wildcat.NewHTTPParser()})
+	return nil, gnet.None
+}
+
+func (hs *httpServer) OnTraffic(c gnet.Conn) gnet.Action {
+	hc := c.Context().(*httpCodec)
+	buf, _ := c.Next(-1)
 
-	// process the pipeline
-	var i int
 pipeline:
-	if i = bytes.Index(buf, hc.delimiter); i != -1 {
-		out = append(out, "HTTP/1.1 200 OK\r\nServer: gnet\r\nContent-Type: text/plain\r\nDate: "...)
-		out = time.Now().AppendFormat(out, "Mon, 02 Jan 2006 15:04:05 GMT")
-		out = append(out, "\r\nContent-Length: 13\r\n\r\nHello, World!"...)
-		buf = buf[i+4:]
+	headerOffset, err := hc.parser.Parse(buf)
+	if err != nil {
+		c.Write(errMsgBytes)
+		return gnet.Close
+	}
+	hc.appendResponse()
+	bodyLen := int(hc.parser.ContentLength())
+	if bodyLen == -1 {
+		bodyLen = 0
+	}
+	buf = buf[headerOffset+bodyLen:]
+	if len(buf) > 0 {
 		goto pipeline
 	}
-	// request not ready, yet
-	return
+
+	c.Write(hc.buf)
+	hc.buf = hc.buf[:0]
+	return gnet.None
+}
+
+var now atomic.Value
+
+func ticktock() {
+	now.Store(nowTimeFormat())
+	for range time.Tick(time.Second) {
+		now.Store(nowTimeFormat())
+	}
 }
 
-func (hs *httpServer) OnInitComplete(srv gnet.Server) (action gnet.Action) {
-	log.Printf("HTTP server is listening on %s (multi-cores: %t, loops: %d)\n",
-		srv.Addr.String(), srv.Multicore, srv.NumEventLoop)
-	return
+func NowTimeFormat() string {
+	return now.Load().(string)
 }
 
-func (hs *httpServer) React(frame []byte, c gnet.Conn) (out []byte, action gnet.Action) {
-	// handle the request
-	out = frame
-	return
+func nowTimeFormat() string {
+	return time.Now().Format("Mon, 02 Jan 2006 15:04:05 GMT")
 }
 
 func init() {
 	runtime.GOMAXPROCS(runtime.NumCPU() * 2)
+	now.Store(nowTimeFormat())
+	go ticktock()
 }
 
 func main() {
@@ -69,9 +105,8 @@ func main() {
 	flag.BoolVar(&multicore, "multicore", true, "multicore")
 	flag.Parse()
 
-	http := new(httpServer)
-	hc := &httpCodec{delimiter: []byte("\r\n\r\n")}
+	hs := &httpServer{addr: fmt.Sprintf("tcp://:%d", port), multicore: multicore}
 
 	// Start serving!
-	log.Fatal(gnet.Serve(http, fmt.Sprintf("tcp://:%d", port), gnet.WithMulticore(multicore), gnet.WithCodec(hc)))
+	log.Println("server exits:", gnet.Run(hs, hs.addr, gnet.WithMulticore(multicore)))
 }