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Collecting network vars and functions in networks structure

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This commit is contained in:
Kleissner
2021-10-18 02:12:36 +02:00
parent e2542b3a4d
commit 5d93a74981
10 changed files with 98 additions and 105 deletions
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26
Network Init.go
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@@ -30,20 +30,16 @@ type networkWire struct {
unicast bool // True if the message was sent via unicast. False if sent via IPv4 broadcast or IPv6 multicast.
}
var (
rawPacketsIncoming chan networkWire // channel for processing incoming decoded packets by workers
)
// initNetwork sets up the network configuration and starts listening.
func initNetwork() {
rawPacketsIncoming = make(chan networkWire, 1000) // buffer up to 1000 UDP packets before they get buffered by the OS network stack and eventually dropped
rand.Seed(time.Now().UnixNano()) // we are not using "crypto/rand" for speed tradeoff
rand.Seed(time.Now().UnixNano()) // we are not using "crypto/rand" for speed tradeoff
// start listen workers
if config.ListenWorkers == 0 {
config.ListenWorkers = 2
}
for n := 0; n < config.ListenWorkers; n++ {
go packetWorker(rawPacketsIncoming)
go networks.packetWorker()
}
// check if user specified where to listen
@@ -110,7 +106,7 @@ func (nets *Networks) InterfaceStart(iface net.Interface, addresses []net.Addr)
continue
}
networkNew, err := networks.PrepareListen(net1.IP.String(), 0)
networkNew, err := nets.PrepareListen(net1.IP.String(), 0)
if err != nil {
// Do not log common errors:
@@ -124,7 +120,7 @@ func (nets *Networks) InterfaceStart(iface net.Interface, addresses []net.Addr)
continue
}
networks.ipListen.Add(networkNew.address)
nets.ipListen.Add(networkNew.address)
Filters.LogError("networks.InterfaceStart", "listen on network '%s' UDP %s\n", iface.Name, networkNew.address.String())
@@ -141,7 +137,7 @@ func (nets *Networks) PrepareListen(ipA string, port int) (network *Network, err
return nil, errors.New("invalid input IP")
}
network = new(Network)
network = &Network{networkGroup: nets}
network.terminateSignal = make(chan interface{})
// get the network interface that belongs to the IP
@@ -157,16 +153,16 @@ func (nets *Networks) PrepareListen(ipA string, port int) (network *Network, err
return nil, err
}
networksMutex.Lock()
nets.Lock()
// Success - port is open. Add to the list and start accepting incoming messages.
if IsIPv4(ip) {
networks4 = append(networks4, network)
networksMutex.Unlock()
nets.networks4 = append(nets.networks4, network)
nets.Unlock()
network.BroadcastIPv4()
} else {
networks6 = append(networks6, network)
networksMutex.Unlock()
nets.networks6 = append(nets.networks6, network)
nets.Unlock()
network.MulticastIPv6Join()
}