func ping(num int, count *int) int {
tcpAddr, _ := net.ResolveTCPAddr("tcp4", "localhost:8080")
conn, err := net.DialTCP("tcp", nil, tcpAddr)
howmuch := 0
for err != nil {
time.Sleep(1 * time.Second)
conn, err = net.DialTCP("tcp", nil, tcpAddr)
if err == nil {
break
} else {
howmuch += 1
}
if howmuch == 50 {
ioutil.WriteFile("log.txt", []byte("i can not dial 50 "), 0644)
fmt.Println("i can not dial after 50times")
return -1
}
}
*count += 1
fmt.Println("i am ", num)
for {
_, _ = conn.Write([]byte("Ping"))
var buff [4]byte
_, _ = conn.Read(buff[0:])
time.Sleep(5 * time.Second)
}
conn.Close()
return 0
}
/**
* Create connection to server using unix socket or tcp/ip then setup buffered reader/writer
*/
func (handlerSocket *HandlerSocket) connect() (err error) {
localAddress, _ := net.ResolveTCPAddr("tcp", "0.0.0.0:0")
targetAddress := fmt.Sprintf("%s:%d", handlerSocket.auth.host, handlerSocket.auth.readPort)
wrTargetAddress := fmt.Sprintf("%s:%d", handlerSocket.auth.host, handlerSocket.auth.writePort)
hsAddress, err := net.ResolveTCPAddr("tcp", targetAddress)
hsWrAddress, err := net.ResolveTCPAddr("tcp", wrTargetAddress)
handlerSocket.conn, err = net.DialTCP("tcp", localAddress, hsAddress)
handlerSocket.wrConn, err = net.DialTCP("tcp", localAddress, hsWrAddress)
if handlerSocket.Logging {
log.Print("Connected using TCP/IP")
}
handlerSocket.in = make(chan HandlerSocketResponse)
handlerSocket.out = make(chan HandlerSocketCommandWriter)
handlerSocket.wrIn = make(chan HandlerSocketResponse)
handlerSocket.wrOut = make(chan HandlerSocketCommandWriter)
go handlerSocket.reader(handlerSocket.conn)
go handlerSocket.writer(handlerSocket.conn)
go handlerSocket.wrreader(handlerSocket.wrConn)
go handlerSocket.wrwriter(handlerSocket.wrConn)
indexes = make(map[int][]string, 10)
handlerSocket.connected = true
return
}
func Dial(addrString string) *net.TCPConn {
addr, err := net.ResolveTCPAddr(addrString)
DieIfError(err, "TCP address resolution error")
conn, err := net.DialTCP("tcp", nil, addr)
for err != nil && strings.HasSuffix(err.String(), "connection refused") {
time.Sleep(10000)
conn, err = net.DialTCP("tcp", nil, addr)
}
DieIfError(err, "Dial error")
conn.SetNoDelay(true)
return conn
}
func Connect(addr, proxy string) (net.Conn, error) {
if !strings.Contains(addr, ":") {
addr += ":80"
}
if len(proxy) == 0 {
taddr, err := net.ResolveTCPAddr("tcp", addr)
if err != nil {
log.Println(err)
return nil, err
}
return net.DialTCP("tcp", nil, taddr)
}
paddr, err := net.ResolveTCPAddr("tcp", proxy)
if err != nil {
return nil, err
}
pconn, err := net.DialTCP("tcp", nil, paddr)
if err != nil {
log.Println(err)
return nil, err
}
header := http.Header{}
header.Set("Proxy-Connection", "keep-alive")
req := &http.Request{
Method: "CONNECT",
URL: &url.URL{Host: addr},
Host: addr,
Header: header,
}
if err := req.Write(pconn); err != nil {
log.Println(err)
pconn.Close()
return nil, err
}
resp, err := http.ReadResponse(bufio.NewReader(pconn), req)
if err != nil {
log.Println(err)
pconn.Close()
return nil, err
}
if resp.StatusCode != http.StatusOK {
pconn.Close()
return nil, errors.New(resp.Status)
}
return pconn, nil
}
func Get_own_ip() string {
googleAddress, _ := net.ResolveTCPAddr("tcp", "www.google.com:80")
googleConn, err := net.DialTCP("tcp", nil, googleAddress)
for {
Println("waitin for IP")
if err == nil {
break
}
googleConn, err = net.DialTCP("tcp", nil, googleAddress)
}
Ip := strings.Split(googleConn.LocalAddr().String(), ":")[0]
googleConn.Close()
return Ip
}
func (s *S) TestCustomDial(c *C) {
dials := make(chan bool, 16)
dial := func(addr net.Addr) (net.Conn, error) {
tcpaddr, ok := addr.(*net.TCPAddr)
if !ok {
return nil, fmt.Errorf("unexpected address type: %T", addr)
}
dials <- true
return net.DialTCP("tcp", nil, tcpaddr)
}
info := mgo.DialInfo{
Addrs: []string{"localhost:40012"},
Dial: dial,
}
// Use hostname here rather than IP, to make things trickier.
session, err := mgo.DialWithInfo(&info)
c.Assert(err, IsNil)
defer session.Close()
const N = 3
for i := 0; i < N; i++ {
select {
case <-dials:
case <-time.After(5 * time.Second):
c.Fatalf("expected %d dials, got %d", N, i)
}
}
select {
case <-dials:
c.Fatalf("got more dials than expected")
case <-time.After(100 * time.Millisecond):
}
}
func client() {
addr, err := net.ResolveTCPAddr("tcp", SERVER_ADDR)
if err != nil {
panic(err)
}
conn, err := net.DialTCP("tcp", nil, addr)
conn.SetWriteBuffer(WRITE_BUF_SIZE)
if err != nil {
panic(err)
}
b := make([]byte, WRITE_BLOCK)
if _, err := rand.Read(b); err != nil {
panic(err)
}
amount := 0
for i := 1; ; i++ {
n, e := conn.Write(b)
if e != nil {
fmt.Println("client write error: ", e)
break
}
amount += n
fmt.Println("write amount KB: ", amount/KB, amount)
// time.Sleep(time.Millisecond)
}
fmt.Println("client exit")
}
func (s *S) TestCustomDialNew(c *C) {
dials := make(chan bool, 16)
dial := func(addr *mgo.ServerAddr) (net.Conn, error) {
dials <- true
if addr.TCPAddr().Port == 40012 {
c.Check(addr.String(), Equals, "localhost:40012")
}
return net.DialTCP("tcp", nil, addr.TCPAddr())
}
info := mgo.DialInfo{
Addrs: []string{"localhost:40012"},
DialServer: dial,
}
// Use hostname here rather than IP, to make things trickier.
session, err := mgo.DialWithInfo(&info)
c.Assert(err, IsNil)
defer session.Close()
const N = 3
for i := 0; i < N; i++ {
select {
case <-dials:
case <-time.After(5 * time.Second):
c.Fatalf("expected %d dials, got %d", N, i)
}
}
select {
case <-dials:
c.Fatalf("got more dials than expected")
case <-time.After(100 * time.Millisecond):
}
}
func (cl *Client) Connect(addr string) {
cl.checkConneciton(true, false)
serverAddr, err := net.ResolveTCPAddr("tcp", addr)
if err != nil {
cl.Printf(fmt.Sprintf("Connect serverAddr Error:%v", err))
cl.checkConneciton(true, false)
cl.ClientChan <- "connect serverAddr error"
return
}
con, err := net.DialTCP("tcp", nil, serverAddr)
if err != nil {
if *configInfo.Load == "" {
fmt.Printf("----------------Client[%v]-------------\n", cl.Server)
fmt.Printf("[type]:%v\n", "Error")
fmt.Printf("[msg]:%v\n", err)
fmt.Printf("----------------------------------------------\n")
} else {
fmt.Printf("[script]client:%v,type:%v,msg:%v\n", cl.Server, "Error", err)
}
cl.checkConneciton(true, false)
cl.ClientChan <- "connect failed"
return
}
cl.checkConneciton(false, true)
time.Sleep(time.Second)
cl.Init(con)
cl.File = false
msg := fmt.Sprintf("action:login,user:%s,pwd:%s", cl.User, cl.Pwd)
//cl.Conn.SetReadDeadline(time.Now().Add(time.Duration(envConfig.Configs.Server.Timeout) * time.Second))
go cl.Read()
cl.Write([]byte(msg))
}
func (b *BotClient) Init(debug bool) {
// Connect to the server
addr, err := net.ResolveTCPAddr("tcp", b.host)
if err != nil {
b.warn("Unable to resolve TCP Address " + b.host)
}
// Dial the socket
socket, err := net.DialTCP("tcp", nil, addr)
if err != nil {
b.warn("Unable to dial socket")
}
b.SockReader = bufio.NewReader(socket)
b.SockWriter = bufio.NewWriter(socket)
b.ReadChan = make(chan string, 1000)
b.WriteChan = make(chan string, 1000)
b.debug = debug
b.handler_map = make(map[string]*Handler)
// start goroutine to do this
go b.startReader()
go b.startWriter()
go b.startListener(DEFAULT_LISTENER_PORT)
b.Connect()
}
func sendTCP(tslogentry *TSLogEntry, sendTCPstatus chan string) {
//resolve the *net.TCPAddr of remoteHost
tcp_address, err := net.ResolveTCPAddr("tcp4", remoteHost)
if err != nil {
sendTCPstatus <- fmt.Sprintf("\nCould not resolve TCP address {{ %s }}\n\n", err.Error())
return
}
//make a TCP connection
tcp_connection, err := net.DialTCP("tcp4", nil, tcp_address)
if err != nil {
sendTCPstatus <- fmt.Sprintf("\nTCP connection with remoteHost %s failed:\n\n%s\n", remoteHost, err.Error())
return
}
defer tcp_connection.Close()
//create an encoder (encodes *TSLogEntry and writes with "\n")
encoder := json.NewEncoder(tcp_connection)
//write the message to the TCP port
err = encoder.Encode(tslogentry)
if err != nil {
sendTCPstatus <- fmt.Sprintf("\nTransmission to remoteHost %s failed:\n\n%s\n", remoteHost, err.Error())
return
}
sendTCPstatus <- fmt.Sprintf("\nSent message with ID %s to server %s\n", tslogentry.UniqID, remoteHost)
}
func proxyConnect(localConn net.Conn, host string) {
print("Connecting Host %s...\n", host)
// localAddress, _ := net.ResolveTCPAddr("", "127.0.0.1:8080")
var localAddress *net.TCPAddr
remoteAddress, err := net.ResolveTCPAddr("", host)
if err != nil {
fmt.Fprint(localConn, "HTTP/1.0 502 Bad Gateway. Address not resolved, baby.\r\n\r\n")
print("Error: %v", err)
localConn.Close()
return
}
print("Remote Address: %v", remoteAddress)
remoteConn, err := net.DialTCP("tcp", localAddress, remoteAddress)
if remoteConn == nil {
fmt.Fprint(localConn, "HTTP/1.0 502 Bad Gateway. Connection not established, honey.\r\n\r\n")
print("Error: %v", err)
localConn.Close()
return
}
remoteConn.SetKeepAlive(true)
fmt.Fprint(localConn, "HTTP/1.0 200 CONNECTION ESTABLISHED\r\n\r\n")
go Copy(localConn, remoteConn)
go Copy(remoteConn, localConn)
}
func (this *OpentsdbBackend) serve() {
var (
err error
conn *net.TCPConn
tempDelay time.Duration
)
retry:
conn, err = net.DialTCP("tcp", nil, this.tcpAddr)
if err != nil {
if tempDelay == 0 {
tempDelay = 5 * time.Millisecond
} else {
tempDelay *= 2
}
if max := 5 * time.Second; tempDelay > max {
tempDelay = max
}
time.Sleep(tempDelay)
goto retry
}
this.session = &session{
conn: conn,
exitFlag: 1,
}
for {
if this.session.IsClosed() {
goto retry
}
time.Sleep(time.Second * 1)
}
}
func connect() {
var tcpAddr *net.TCPAddr
tcpAddr, _ = net.ResolveTCPAddr("tcp", "127.0.0.1:9999")
conn, err := net.DialTCP("tcp", nil, tcpAddr)
if err != nil {
fmt.Println(err)
return
}
defer conn.Close()
fmt.Println("connected!")
go onMessageRecived(conn)
var fDumpCache string = "1s"
if !(fDumpCache == "") {
dur, err := time.ParseDuration(fDumpCache)
if err != nil {
fmt.Printf("[-] couldn't parse %s: %s\n", fDumpCache, err.Error())
return
}
//每隔五秒钟发送一次消息。
for {
msg := time.Now().String()
b := []byte(msg + "aaaaaaaaaaa\n")
fmt.Println(string(b))
conn.Write(b)
//time.Sleep()表示休眠多少时间，休眠时处于阻塞状态，后续程序无法执行．
//time.After()表示多少时间之后，但是在取出channel内容之前不阻塞，后续程序可以继续执行。
<-time.After(dur)
}
}
}
// Dial opens a new TCP connection with XMPP-style peer discovery.
// Typically, Dial is not called directly but instead called when necessary by the stream object.
func Dial(domain, service string, defaultPort uint16) (*net.TCPConn, error) {
_, srvs, err := net.LookupSRV(service, "tcp", domain)
// Try fallback process if SRV lookup fails
if err != nil {
addr, err := net.ResolveTCPAddr("tcp", fmt.Sprint(domain, ":", defaultPort))
if err != nil {
return nil, err
}
return net.DialTCP("tcp", addr, nil)
}
if len(srvs) == 1 && srvs[0].Target == "." {
return nil, errors.New("dial: '" + service + "' service does not exist at " + domain)
}
for _, srv := range srvs {
conn, err := dialRecord(srv)
if err == nil {
return conn, err
}
}
return nil, errors.New("dial: the server '" + domain + "' failed to respond.")
}
func (self *BackClient) Start() error {
upstream, err := self.readSettings()
if err != nil {
return err
}
self.upstream = upstream
addr, err := net.ResolveTCPAddr("tcp", self.backAddr)
if err != nil {
return err
}
conn, err := net.DialTCP("tcp", nil, addr)
if err != nil {
return err
}
err = writeTGW(conn)
if err != nil {
Error("write tgw failed")
return err
}
self.coor = NewCoor(NewTunnel(conn), self)
self.wg.Add(1)
go self.pump()
return nil
}
// Creates and opens a new connection to server per ConnectionSpec.
// The new connection is wrapped by a new connHdl with its bufio.Reader
// delegating to the net.Conn's reader.
//
func newConnHdl (spec *ConnectionSpec) (hdl *connHdl, err os.Error) {
here := "newConnHdl";
if hdl = new(connHdl); hdl == nil {
return nil, withNewError (fmt.Sprintf("%s(): failed to allocate connHdl", here));
}
addr := fmt.Sprintf("%s:%d", spec.host, spec.port);
raddr, e:= net.ResolveTCPAddr(addr);
if e != nil {
return nil, withNewError (fmt.Sprintf("%s(): failed to resolve remote address %s", here, addr));
}
conn, e:= net.DialTCP(TCP, nil, raddr);
switch {
case e != nil:
err = withOsError (fmt.Sprintf("%s(): could not open connection", here), e);
case conn == nil:
err = withNewError (fmt.Sprintf("%s(): net.Dial returned nil, nil (?)", here));
default:
configureConn(conn, spec);
hdl.spec = spec;
hdl.conn = conn;
bufsize := 4096;
hdl.reader, e = bufio.NewReaderSize(conn, bufsize);
if e != nil {
err = withNewError (fmt.Sprintf("%s(): bufio.NewReaderSize (%d) error", here, bufsize));
}
else {
if debug() {log.Stdout("[Go-Redis] Opened SynchConnection connection to ", addr);}
}
}
return hdl, err;
}
func isListening(uri string) bool {
address, err := net.ResolveTCPAddr("tcp", uri)
Expect(err).ToNot(HaveOccurred())
_, err = net.DialTCP("tcp", nil, address)
return err == nil
}
func main() {
checkArgs(os.Args)
service := os.Args[1]
addr, err := net.ResolveTCPAddr("tcp", service)
checkError(err)
conn, err := net.DialTCP("tcp", nil, addr)
checkError(err)
defer conn.Close()
_, err = conn.Write([]byte("HEAD / HTTP/1.0\r\n\r\n"))
checkError(err)
result, err := ioutil.ReadAll(conn)
checkError(err)
fmt.Println(string(result))
}
func main() {
if len(os.Args) < 3 {
fmt.Printf("usage ./transferclient <filename> <savefilename\n")
return
}
service := "127.0.0.1:8010"
tcpAddr, err := net.ResolveTCPAddr("tcp4", service)
if err != nil {
fmt.Printf("ResolveTCPAddr")
}
conn, err := net.DialTCP("tcp", nil, tcpAddr)
if err != nil {
fmt.Printf("DialTcp error,%s\n", err)
} else {
session := socket.NewTcpSession(conn)
fmt.Printf("connect sucessful\n")
//发出文件请求
wpk := packet.NewWPacket(packet.NewByteBuffer(64))
wpk.PutUint16(request_file)
wpk.PutString(os.Args[1])
session.Send(wpk)
tsession := &transfer_session{filename: os.Args[2]}
session.SetUd(tsession)
socket.ProcessSession(session, packet.NewRPacketDecoder(65535), process_client)
}
}
func main() {
regMessage := &example.RegMessage{
Id: proto.Int32(10001),
Username: proto.String("vicky"),
Password: proto.String("123456"),
Email: proto.String("*****@*****.**"),
}
fmt.Println(regMessage)
buffer, err := proto.Marshal(regMessage)
if err != nil {
fmt.Printf("failed: %s\n", err)
return
}
pTCPAddr, err := net.ResolveTCPAddr("tcp", "127.0.0.1:10000")
if err != nil {
fmt.Fprintf(os.Stderr, "Error: %s", err.Error())
return
}
pTCPConn, err := net.DialTCP("tcp", nil, pTCPAddr)
if err != nil {
fmt.Fprintf(os.Stderr, "Error: %s", err.Error())
return
}
pTCPConn.Write(buffer)
}
func _create_connection(cfg *Config) (*Conn, error) {
addr, err := net.ResolveTCPAddr("tcp", cfg.Url)
if err != nil {
return nil, err
}
// log.Printf("Connecting to: %s / %s\n", cfg.url, addr)
conn, err := net.DialTCP("tcp", nil, addr)
if err != nil {
return nil, err
}
conn.SetWriteBuffer(cfg.WriteSz)
conn.SetReadBuffer(cfg.ReadSz)
mmdc := &Conn{socket: conn,
writeChan: make(chan []byte),
dispatch: make(map[ChannelId]chan ChannelMsg, 1024),
callTimeout: time.Second * 5,
services: make(map[string]ServiceFunc),
}
go writer(mmdc)
go reader(mmdc)
handshake := []byte{1, 1}
handshake = append(handshake, cfg.AppName...)
mmdc.WriteFrame(handshake)
return mmdc, nil
}
func (o *OpenTSDB) Write(points []*client.Point) error {
if len(points) == 0 {
return nil
}
now := time.Now()
// Send Data with telnet / socket communication
uri := fmt.Sprintf("%s:%d", o.Host, o.Port)
tcpAddr, _ := net.ResolveTCPAddr("tcp", uri)
connection, err := net.DialTCP("tcp", nil, tcpAddr)
if err != nil {
return fmt.Errorf("OpenTSDB: Telnet connect fail")
}
defer connection.Close()
for _, pt := range points {
for _, metric := range buildMetrics(pt, now, o.Prefix) {
messageLine := fmt.Sprintf("put %s %v %s %s\n",
metric.Metric, metric.Timestamp, metric.Value, metric.Tags)
if o.Debug {
fmt.Print(messageLine)
}
_, err := connection.Write([]byte(messageLine))
if err != nil {
return fmt.Errorf("OpenTSDB: Telnet writing error %s", err.Error())
}
}
}
return nil
}
func Dial(dest v2net.Destination) (net.Conn, error) {
var ip net.IP
if dest.Address().IsIPv4() || dest.Address().IsIPv6() {
ip = dest.Address().IP()
} else {
ips, err := net.LookupIP(dest.Address().Domain())
if err != nil {
return nil, err
}
if len(ips) == 0 {
return nil, ErrInvalidHost
}
ip = ips[dice.Roll(len(ips))]
}
if dest.IsTCP() {
return net.DialTCP("tcp", nil, &net.TCPAddr{
IP: ip,
Port: int(dest.Port()),
})
} else {
return net.DialUDP("udp", nil, &net.UDPAddr{
IP: ip,
Port: int(dest.Port()),
})
}
}
// ---------------------------- MAIN ---------------------------
func main() {
// ---------------------------- VARIABLES DECLARATION ---------------------------
var usage string = "Usage: %s host:port \n"
var httpheader string = "HEAD / HTTP/1.0\r\n\r\n"
if len(os.Args) != 2 {
fmt.Fprintf(os.Stderr, usage, os.Args[0])
os.Exit(1)
}
service := os.Args[1]
tcpAddr, err := net.ResolveTCPAddr("tcp", service)
checkError(err)
conn, err := net.DialTCP("tcp", nil, tcpAddr)
checkError(err)
// case port 80
_, err = conn.Write([]byte(httpheader))
checkError(err)
// case port 80
result, err := ioutil.ReadAll(conn)
checkError(err)
fmt.Println(string(result))
os.Exit(0)
}
func newRawClient(addr string) (*rawclient, error) {
tcpAddr, err := net.ResolveTCPAddr("tcp", addr)
if err != nil {
return nil, err
}
fmt.Printf("connecting to %s\n", addr)
c, err := net.DialTCP("tcp", nil, tcpAddr)
if err != nil {
return nil, err
}
fmt.Println("connected")
c.SetNoDelay(true)
c.SetKeepAlive(true)
idBuff := make([]byte, 8, 8)
_, err = c.Read(idBuff)
if err != nil {
return nil, err
}
ret := &rawclient{binary.LittleEndian.Uint64(idBuff), c, 0, make(chan maggiefs.NotifyEvent, 100), make(chan queuedRequest), make(chan response), make(chan bool)}
// read client id
go ret.mux()
go ret.readResponses()
return ret, nil
}
func newActiveSocket(remote string, port int, logger *Logger) (DataSocket, error) {
connectTo := net.JoinHostPort(remote, strconv.Itoa(port))
logger.Print("Opening active data connection to " + connectTo)
raddr, err := net.ResolveTCPAddr("tcp", connectTo)
if err != nil {
logger.Print(err)
return nil, err
}
tcpConn, err := net.DialTCP("tcp", nil, raddr)
if err != nil {
logger.Print(err)
return nil, err
}
socket := new(ftpActiveSocket)
socket.conn = tcpConn
socket.host = remote
socket.port = port
socket.logger = logger
return socket, nil
}
func dial(addr string) (*net.TCPConn, error) {
var conn *net.TCPConn
var err error
var count = 0
var tcpAddr *net.TCPAddr
if tcpAddr, err = net.ResolveTCPAddr("tcp4", addr); err != nil {
return nil, err
}
for {
count++
if count > NetConf.MAX_DIAL_TIMES {
return nil, err
}
conn, err = net.DialTCP("tcp", nil, tcpAddr)
Logger.Info(LogConf.NetCoreAgent, LogConf.SERVER, "Agent dial time: %d addr %s %v", count, addr, conn)
if err == nil {
return conn, nil
}
time.Sleep(NetConf.DIAL_INTERNAL)
}
return nil, nil
}
func main() {
if len(os.Args) != 2 {
fmt.Fprintf(os.Stderr, "Usage: %s host:port\n", os.Args[0])
os.Exit(1)
}
service := os.Args[1]
// There may be syntax errors in the address specified
tcpAddr, err := net.ResolveTCPAddr("tcp4", service)
checkError(err)
// The attempt to connect to the remote service may fail.
// For example, the service requested might not be running,
// or there may be no such host connected to the network
conn, err := net.DialTCP("tcp", nil, tcpAddr)
checkError(err)
// Although a connection has been established,
// writes to the service might fail if the connection has died suddenly,
// or the network times out
_, err = conn.Write([]byte("HEAD / HTTP/1.0\r\n\r\n"))
checkError(err)
// Similarly, the reads might fail
result, err := ioutil.ReadAll(conn)
checkError(err)
fmt.Println(string(result))
os.Exit(0)
}
// Creates and opens a new connection to server per ConnectionSpec.
// The new connection is wrapped by a new connHdl with its bufio.Reader
// delegating to the net.Conn's reader.
//
func newConnHdl(spec *ConnectionSpec) (hdl *connHdl, err Error) {
here := "newConnHdl"
if hdl = new(connHdl); hdl == nil {
return nil, NewError(SYSTEM_ERR, fmt.Sprintf("%s(): failed to allocate connHdl", here))
}
addr := fmt.Sprintf("%s:%d", spec.host, spec.port)
raddr, e := net.ResolveTCPAddr(addr)
if e != nil {
msg := fmt.Sprintf("%s(): failed to resolve remote address %s", here, addr)
return nil, NewErrorWithCause(SYSTEM_ERR, msg, e)
}
conn, e := net.DialTCP(TCP, nil, raddr)
switch {
case e != nil:
err = NewErrorWithCause(SYSTEM_ERR, fmt.Sprintf("%s(): could not open connection", here), e)
case conn == nil:
err = NewError(SYSTEM_ERR, fmt.Sprintf("%s(): net.Dial returned nil, nil (?)", here))
default:
configureConn(conn, spec)
hdl.spec = spec
hdl.conn = conn
bufsize := 4096
hdl.reader, e = bufio.NewReaderSize(conn, bufsize)
if e != nil {
msg := fmt.Sprintf("%s(): bufio.NewReaderSize (%d) error", here, bufsize)
err = NewErrorWithCause(SYSTEM_ERR, msg, e)
} else {
if err = hdl.onConnect(); err == nil && debug() {
log.Stdout("[Go-Redis] Opened SynchConnection connection to ", addr)
}
}
}
return hdl, err
}