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socket.go
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socket.go
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// Copyright 2016 Platina Systems, Inc. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package cli
import (
"github.com/platinasystems/elib/iomux"
"github.com/platinasystems/elib/socket"
"fmt"
"sync"
)
type ServerConfig struct {
DisablePrompt bool
EnableQuit bool
}
type Server struct {
main *Main
ServerConfig
socket.Server
socketConfig string
verbose bool
// Locks client pool.
lock sync.Mutex
clientPool
}
func (s *Server) ReadReady() (err error) {
template := client{}
err = s.AcceptClient(&template.Client)
if err != nil {
return
}
template.server = s
ci, err := s.newClient(&template, "")
if err != nil {
return
}
if s.verbose {
c := &s.clients[ci]
fmt.Printf("server: new client #%d %s <- %s\n", c.index, socket.SockaddrString(c.SelfAddr), socket.SockaddrString(c.PeerAddr))
}
return
}
type client struct {
server *Server
socket.Client
index uint
}
//go:generate gentemplate -d Package=cli -id client -d Data=clients -d PoolType=clientPool -d Type=client github.com/platinasystems/elib/pool.tmpl
func (s *Server) newClient(template *client, socketConfig string) (i uint, err error) {
s.lock.Lock()
i = s.clientPool.GetIndex()
c := &s.clients[i]
*c = *template
c.index = i
s.lock.Unlock()
if len(socketConfig) > 0 {
err = c.Config(socketConfig, socket.Flags(0))
if err != nil {
return
}
}
c.server.main.AddFile(c, s.ServerConfig)
return
}
func (c *client) ReadReady() (err error) {
err = c.Client.ReadReady()
if err != nil {
return
}
if c.Client.IsClosed() {
c.done("eof")
}
return
}
func (c *client) done(reason string) {
s := c.server
if s.verbose {
fmt.Printf("server: %s client #%d %s <- %s\n", reason, c.index, socket.SockaddrString(c.SelfAddr), socket.SockaddrString(c.PeerAddr))
}
s.lock.Lock()
s.clientPool.PutIndex(c.index)
s.lock.Unlock()
}
func (c *client) Close() (err error) {
err = c.Client.Close()
if err != nil {
return
}
c.done("requested-close")
return
}
func (c *Main) AddServer(config string, cf ServerConfig) (s *Server, err error) {
s = &Server{main: c}
s.ServerConfig = cf
err = s.Config(config, socket.Listen)
if err != nil {
return
}
iomux.Add(s)
c.servers = append(c.servers, s)
return
}