54 lines
818 B
Go
54 lines
818 B
Go
|
package entry
|
||
|
|
||
|
import (
|
||
|
"io"
|
||
|
"net"
|
||
|
"sync/atomic"
|
||
|
)
|
||
|
|
||
|
type Listener struct {
|
||
|
addr net.Addr
|
||
|
ch chan net.Conn
|
||
|
exitFlag int32
|
||
|
exitChan chan struct{}
|
||
|
}
|
||
|
|
||
|
func (l *Listener) Receive(conn net.Conn) {
|
||
|
select {
|
||
|
case l.ch <- conn:
|
||
|
case <-l.exitChan:
|
||
|
}
|
||
|
}
|
||
|
|
||
|
func (l *Listener) Accept() (net.Conn, error) {
|
||
|
select {
|
||
|
case conn, ok := <-l.ch:
|
||
|
if ok {
|
||
|
return conn, nil
|
||
|
} else {
|
||
|
return nil, io.ErrClosedPipe
|
||
|
}
|
||
|
case <-l.exitChan:
|
||
|
return nil, io.ErrClosedPipe
|
||
|
}
|
||
|
}
|
||
|
|
||
|
func (l *Listener) Close() error {
|
||
|
if atomic.CompareAndSwapInt32(&l.exitFlag, 0, 1) {
|
||
|
close(l.exitChan)
|
||
|
}
|
||
|
return nil
|
||
|
}
|
||
|
|
||
|
func (l *Listener) Addr() net.Addr {
|
||
|
return l.addr
|
||
|
}
|
||
|
|
||
|
func newListener(addr net.Addr) *Listener {
|
||
|
return &Listener{
|
||
|
addr: addr,
|
||
|
ch: make(chan net.Conn, 10),
|
||
|
exitChan: make(chan struct{}),
|
||
|
}
|
||
|
}
|