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|
package proxy
import (
"fmt"
"log"
"net"
"sync"
"time"
"github.com/HimbeerserverDE/mt"
)
var listeners map[*listener]struct{}
var listenersMu sync.RWMutex
var listenersOnce sync.Once
func allListeners() map[*listener]struct{} {
lm := make(map[*listener]struct{})
listenersMu.RLock()
defer listenersMu.RUnlock()
for l := range listeners {
lm[l] = struct{}{}
}
return lm
}
type listener struct {
mt.Listener
mu sync.RWMutex
clts map[*ClientConn]struct{}
}
func listen(pc net.PacketConn) *listener {
l := &listener{
Listener: mt.Listen(pc),
clts: make(map[*ClientConn]struct{}),
}
listenersMu.Lock()
defer listenersMu.Unlock()
listenersOnce.Do(func() {
listeners = make(map[*listener]struct{})
})
listeners[l] = struct{}{}
return l
}
func (l *listener) clients() map[*ClientConn]struct{} {
clts := make(map[*ClientConn]struct{})
l.mu.RLock()
defer l.mu.RUnlock()
for cc := range l.clts {
clts[cc] = struct{}{}
}
return clts
}
func (l *listener) accept() (*ClientConn, error) {
p, err := l.Listener.Accept()
if err != nil {
return nil, err
}
prefix := fmt.Sprintf("[%s] ", p.RemoteAddr())
cc := &ClientConn{
Peer: p,
created: time.Now(),
logger: log.New(logWriter, prefix, log.LstdFlags|log.Lmsgprefix),
initCh: make(chan struct{}),
modChs: make(map[string]struct{}),
}
l.mu.Lock()
l.clts[cc] = struct{}{}
l.mu.Unlock()
go func() {
<-cc.Closed()
l.mu.Lock()
defer l.mu.Unlock()
delete(l.clts, cc)
}()
cc.Log("->", "connect")
go handleClt(cc)
select {
case <-cc.Closed():
return nil, fmt.Errorf("%s is closed", cc.RemoteAddr())
default:
}
return cc, nil
}
|
