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mock_listener.go
68 lines (56 loc) · 1.12 KB
/
mock_listener.go
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package server
import (
"errors"
"net"
"sync/atomic"
"github.com/jeffrom/logd/config"
)
type mockListener struct {
conf *config.Config
closeC chan int
connC chan net.Conn
closed uint32
}
func newMockListener(conf *config.Config) *mockListener {
l := &mockListener{
conf: conf,
closeC: make(chan int),
connC: make(chan net.Conn),
}
return l
}
func (l *mockListener) Close() error {
if atomic.CompareAndSwapUint32(&l.closed, 0, 1) {
// receive from closed channel returns the 0 value immediately
close(l.closeC)
}
return nil
}
func (l *mockListener) Accept() (net.Conn, error) {
select {
case c := <-l.connC:
return c, nil
case <-l.closeC:
return nil, errors.New("listener closed")
}
}
func (l *mockListener) Addr() net.Addr {
return mockAddr(0)
}
func (l *mockListener) Dial(addr string) (net.Conn, error) {
select {
case <-l.closeC:
return nil, errors.New("listener closed")
default:
}
server, client := net.Pipe()
l.connC <- server
return client, nil
}
type mockAddr int
func (a mockAddr) Network() string {
return "mock"
}
func (a mockAddr) String() string {
return "local mock"
}