func newLspServer(port int, params *LspParams) (*LspServer, error) {
if params == nil {
params = &LspParams{5, 2000}
}
hostport := fmt.Sprintf("localhost:%v", port)
addr, err := lspnet.ResolveUDPAddr("udp", hostport)
if lsplog.CheckReport(1, err) {
return nil, err
}
udpconn, err := lspnet.ListenUDP("udp", addr)
if lsplog.CheckReport(1, err) {
return nil, err
} else {
lsplog.Vlogf(1, "[server] listen on %v\n", addr.String())
}
srv := &LspServer{
server{
nextConnId: 1,
params: params,
connMap: make(map[string]*lspConn),
udpConn: udpconn,
udpAddr: addr,
netReadChan: make(chan *udpPacket),
appWriteChan: make(chan *LspMsg),
appReadChan: make(chan *LspMsg),
closeChan: make(chan uint16),
closeAllChan: make(chan chan error),
removeConnChan: make(chan uint16),
},
}
go srv.loopServe()
go srv.loopRead()
return srv, nil
}
func newLspClient(hostport string, params *LspParams) (*LspClient, error) {
if params == nil {
params = &LspParams{5, 2000}
}
addr, err := lspnet.ResolveUDPAddr("udp", hostport)
if lsplog.CheckReport(1, err) {
return nil, err
}
udpConn, err := lspnet.DialUDP("udp", nil, addr)
if err != nil {
lsplog.Vlogf(1, "[client] connect to %v failed: %v\n", addr.String(), err)
return nil, err
} else {
lsplog.Vlogf(1, "[client] connected to %v\n", addr.String())
}
removeChan := make(chan uint16)
appReadChan := make(chan *LspMsg)
conn := newLspConn(params, udpConn, addr, 0, appReadChan, removeChan)
cli := &LspClient{
client{
udpConn: udpConn,
addr: addr,
conn: conn,
netReadChan: make(chan *LspMsg),
appWriteChan: make(chan *LspMsg),
appReadChan: appReadChan,
connIdChan: make(chan uint16, 1),
removeConnChan: removeChan,
closeChan: make(chan error),
},
}
go cli.loopServe()
go cli.loopRead()
return cli, nil
}