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IpMsgBase.go
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IpMsgBase.go
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package ipmsg
import (
"ipmsg/logger"
"net"
"strconv"
"strings"
"time"
)
type Base struct {
SenderName string
SenderHost string
SenderPort int
BroadCastAddr *net.UDPAddr
packageHandler func(*Base)
messageDecoder func(s string) (string, error)
tcpNet *net.TCPListener
udpNet *net.UDPConn
}
func NewIpMsgBase(user string, host string, port int) (im *Base, err error) {
im = &Base{
SenderName: user,
SenderHost: host,
SenderPort: port,
BroadCastAddr: &net.UDPAddr{
IP: net.IPv4bcast,
Port: port,
},
}
logger.Debug("start init network")
im.tcpNet, err = createTcpServer(im.SenderHost, im.SenderPort)
if err != nil {
return nil, err
}
im.udpNet, err = createUdpServer(im.SenderHost, im.SenderPort)
if err != nil {
return nil, err
}
logger.Debug("init network success")
return im, nil
}
func (im *Base) BindDecoder(decoder func(s string) (string, error)) {
im.messageDecoder = decoder
}
func (im *Base) BindHandler(handler func(*Base)) {
im.packageHandler = handler
}
func (im *Base) Run() {
im.packageHandler(im)
}
func (im *Base) NewPackage(CommandNo CmdType, AdditionalSection string) *Package {
return &Package{
Ver: strconv.Itoa(IPMSG_VERSION),
PacketNo: uint32(time.Now().Unix()),
SenderName: im.SenderName,
SenderHost: im.SenderHost,
CommandNo: CommandNo,
AdditionalSection: AdditionalSection,
}
}
func (im *Base) SendPackage(addr *net.UDPAddr, pkg *Package) error {
logger.Debug("send pkg [%s] to [%s]", pkg.CommandNo.GetCmd(), addr)
pkg.Buf = pkg.Marshal()
logger.Trace("send new pkg %+v", pkg)
logger.Trace("send pkg ext_data {%s}", strings.Replace(pkg.AdditionalSection, "\n", "\\n", -1))
_, err := im.udpNet.WriteToUDP(pkg.Buf, addr)
return err
}
func (im *Base) ReadPackage() (*Package, error) {
buf := make([]byte, 512)
n, addr, _ := im.udpNet.ReadFromUDP(buf)
pkg, _ := UnMarshal(buf[:n])
logger.Debug("recv pkg [%s] from [%s]", pkg.CommandNo.GetCmd(), addr)
pkg.SenderAddr = addr
logger.Trace("recv new pkg %+v", pkg)
if im.messageDecoder != nil {
pkg.AdditionalSection, _ = im.messageDecoder(pkg.AdditionalSection)
}
logger.Trace("recv pkg ext_data {%s}", strings.Replace(pkg.AdditionalSection, "\n", "\\n", -1))
return pkg, nil
}