func ListenToEvents() {
clients := make([]*events.SomeSocket, 0, 1024)
clientsCounter := 0
for {
select {
case newVoteEvent := <-*events.GetNewVoteChan():
for _, client := range clients {
client.NewVoteEvent <- &newVoteEvent
}
case voteUpdateEvent := <-*events.GetVoteUpdateChan():
for _, client := range clients {
client.VoteUpdEvent <- &voteUpdateEvent
}
case newSocketEvent := <-*events.GetNewSocketsChan():
clientsCounter++
newSocketEvent.Socket.Id = strconv.Itoa(clientsCounter)
clients = append(clients, newSocketEvent.Socket)
case socketClosedEvent := <-*events.GetClosedSocketsChan():
id := socketClosedEvent.Socket.Id
index := 0
for i, socket := range clients {
if socket.Id == id {
index = i
}
}
clients = append(clients[:index], clients[index+1:]...)
}
}
}
func ListenAndServer(host string, ns *notification.Sender, dbconn string) {
notificationSender = ns
dbConnectionAddress = dbconn
l, err := net.Listen("tcp", host)
if err != nil {
log.Error.Printf("TcpSocket Error listening: %s\n", err.Error())
os.Exit(1)
}
defer l.Close()
defer close(*events.GetNewVoteChan())
defer close(*events.GetVoteUpdateChan())
defer close(*events.GetNewSocketsChan())
defer close(*events.GetClosedSocketsChan())
go ListenToEvents()
for {
conn, err := l.Accept()
if err != nil {
log.Error.Printf("TcpSocket Error accepting: %s\n", err.Error())
os.Exit(1)
}
go handleNewConnection(conn)
}
}
func ListenAndServer(host string, ns *notification.Sender) {
notificationSender = ns
l, err := net.Listen("tcp", host)
if err != nil {
log.Println("TcpSocket Error listening:", err.Error())
os.Exit(1)
}
println("Starting tcp server...")
defer l.Close()
defer close(*events.GetNewVoteChan())
defer close(*events.GetVoteUpdateChan())
defer close(*events.GetNewSocketsChan())
defer close(*events.GetClosedSocketsChan())
go ListenToEvents()
for {
conn, err := l.Accept()
if err != nil {
log.Println("TcpSocket Error accepting: ", err.Error())
os.Exit(1)
}
go HandleNewConnection(conn)
}
}
func ListenToEvents() {
funcPrefix := "Processing socket managing events"
log.Debug.Printf("%s: start\n", funcPrefix)
defer log.Debug.Printf("%s: end\n", funcPrefix)
clients := make([]*events.SomeSocket, 0, 1024)
clientsCounter := 0
for {
select {
case newVoteEvent := <-*events.GetNewVoteChan():
log.Debug.Printf("%s: handling vote create event\n", funcPrefix)
for _, client := range clients {
client.NewVoteEvent <- &newVoteEvent
}
case voteUpdateEvent := <-*events.GetVoteUpdateChan():
log.Debug.Printf("%s: handling vote update event\n", funcPrefix)
for _, client := range clients {
client.VoteUpdEvent <- &voteUpdateEvent
}
case newSocketEvent := <-*events.GetNewSocketsChan():
log.Debug.Printf("%s: handling socket connection create event\n", funcPrefix)
clientsCounter++
newSocketEvent.Socket.Id = strconv.Itoa(clientsCounter)
clients = append(clients, newSocketEvent.Socket)
case socketClosedEvent := <-*events.GetClosedSocketsChan():
log.Debug.Printf("%s: handling socket connection close event\n", funcPrefix)
id := socketClosedEvent.Socket.Id
index := 0
for i, socket := range clients {
if socket.Id == id {
index = i
}
}
clients = append(clients[:index], clients[index+1:]...)
}
}
}
func ConnectionClosed(s *TcpSocket) {
*events.GetClosedSocketsChan() <- events.SocketClosedEvent{&s.SomeSocket}
s.SomeSocket.CloseEvent <- &events.SocketClosedEvent{&s.SomeSocket}
}