74 lines
1.4 KiB
Go
74 lines
1.4 KiB
Go
package srt
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import (
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"net"
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)
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type Intake struct {
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max_conns int
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tunnels []*Tunnel
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socket net.PacketConn
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buffer []byte
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}
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func NewIntake(l net.PacketConn, max_conns int) (*Intake) {
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intake := new(Intake)
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intake.max_conns = max_conns
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intake.tunnels = make([]*Tunnel, 0)
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intake.buffer = make([]byte, 1500)
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intake.socket = l
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return intake
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}
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func (intake *Intake) NewTunnel(l net.PacketConn, peer net.Addr) (*Tunnel) {
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if len(intake.tunnels) < intake.max_conns {
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tunnel := new(Tunnel)
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tunnel.socket = l
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tunnel.peer = peer
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tunnel.queue = make(chan []byte, 10)
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intake.tunnels = append(intake.tunnels, tunnel)
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go tunnel.Start()
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return tunnel
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}
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return nil
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}
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func (intake *Intake) get_tunnel(peer net.Addr) (*Tunnel) {
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var tunnel *Tunnel
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for i := 0; i < len(intake.tunnels); i++ {
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if intake.tunnels[i].broken {
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intake.tunnels[i].Shutdown()
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intake.tunnels = append(intake.tunnels[:i], intake.tunnels[i+1:]...)
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i--
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continue
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}
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if intake.tunnels[i].peer.String() == peer.String() {
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tunnel = intake.tunnels[i]
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}
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}
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if tunnel == nil {
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tunnel = intake.NewTunnel(intake.socket, peer)
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}
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return tunnel
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}
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func (intake *Intake) Read() {
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n, peer, err := intake.socket.ReadFrom(intake.buffer)
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if err != nil {
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return
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}
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tunnel := intake.get_tunnel(peer)
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if tunnel == nil {
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return
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}
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pkt := make([]byte, n)
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copy(pkt, intake.buffer[:n])
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select {
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case tunnel.queue <- pkt:
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default:
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//tunnel.broken = true
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}
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}
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