func (p *Pool) put(c thrift.TTransport, forceClose bool) error {
p.mu.Lock()
if !p.closed && !forceClose {
p.idle.PushFront(idleConn{t: nowFunc(), c: c})
// 控制: MaxIdle
if p.idle.Len() > p.MaxIdle {
c = p.idle.Remove(p.idle.Back()).(idleConn).c
} else {
c = nil
}
}
if c == nil {
// 如果存在有效归还，则通知: cond
if p.cond != nil {
p.cond.Signal()
}
p.mu.Unlock()
return nil
} else {
// c 是一个多余的connection
p.release()
p.mu.Unlock()
return c.Close()
}
}
func main() {
flag.Usage = Usage
var host string
var port int
var protocol string
var urlString string
var framed bool
var useHttp bool
var parsedUrl url.URL
var trans thrift.TTransport
_ = strconv.Atoi
_ = math.Abs
flag.Usage = Usage
flag.StringVar(&host, "h", "localhost", "Specify host and port")
flag.IntVar(&port, "p", 9090, "Specify port")
flag.StringVar(&protocol, "P", "binary", "Specify the protocol (binary, compact, simplejson, json)")
flag.StringVar(&urlString, "u", "", "Specify the url")
flag.BoolVar(&framed, "framed", false, "Use framed transport")
flag.BoolVar(&useHttp, "http", false, "Use http")
flag.Parse()
if len(urlString) > 0 {
parsedUrl, err := url.Parse(urlString)
if err != nil {
fmt.Fprintln(os.Stderr, "Error parsing URL: ", err)
flag.Usage()
}
host = parsedUrl.Host
useHttp = len(parsedUrl.Scheme) <= 0 || parsedUrl.Scheme == "http"
} else if useHttp {
_, err := url.Parse(fmt.Sprint("http://", host, ":", port))
if err != nil {
fmt.Fprintln(os.Stderr, "Error parsing URL: ", err)
flag.Usage()
}
}
cmd := flag.Arg(0)
var err error
if useHttp {
trans, err = thrift.NewTHttpClient(parsedUrl.String())
} else {
portStr := fmt.Sprint(port)
if strings.Contains(host, ":") {
host, portStr, err = net.SplitHostPort(host)
if err != nil {
fmt.Fprintln(os.Stderr, "error with host:", err)
os.Exit(1)
}
}
trans, err = thrift.NewTSocket(net.JoinHostPort(host, portStr))
if err != nil {
fmt.Fprintln(os.Stderr, "error resolving address:", err)
os.Exit(1)
}
if framed {
trans = thrift.NewTFramedTransport(trans)
}
}
if err != nil {
fmt.Fprintln(os.Stderr, "Error creating transport", err)
os.Exit(1)
}
defer trans.Close()
var protocolFactory thrift.TProtocolFactory
switch protocol {
case "compact":
protocolFactory = thrift.NewTCompactProtocolFactory()
break
case "simplejson":
protocolFactory = thrift.NewTSimpleJSONProtocolFactory()
break
case "json":
protocolFactory = thrift.NewTJSONProtocolFactory()
break
case "binary", "":
protocolFactory = thrift.NewTBinaryProtocolFactoryDefault()
break
default:
fmt.Fprintln(os.Stderr, "Invalid protocol specified: ", protocol)
Usage()
os.Exit(1)
}
client := services.NewRpcServiceBaseClientFactory(trans, protocolFactory)
if err := trans.Open(); err != nil {
fmt.Fprintln(os.Stderr, "Error opening socket to ", host, ":", port, " ", err)
os.Exit(1)
}
switch cmd {
case "ping":
if flag.NArg()-1 != 0 {
fmt.Fprintln(os.Stderr, "Ping requires 0 args")
flag.Usage()
}
fmt.Print(client.Ping())
fmt.Print("\n")
break
case "":
Usage()
break
default:
fmt.Fprintln(os.Stderr, "Invalid function ", cmd)
}
}