// prepConn() takes a net.Conn and attaches a file descriptor release in its Close method
func (p *Proxy) prepConn(c net.Conn) (net.Conn, os.Error) {
c.(*net.TCPConn).SetKeepAlive(true)
err := c.SetReadTimeout(p.config.Timeout)
if err != nil {
log.Printf("Error TCP set read timeout: %s\n", err)
c.Close()
p.fdl.Unlock()
return c, err
}
err = c.SetWriteTimeout(p.config.Timeout)
if err != nil {
log.Printf("Error TCP set write timeout: %s\n", err)
c.Close()
p.fdl.Unlock()
return c, err
}
return util.NewRunOnCloseConn(c, func() { p.fdl.Unlock() }), nil
}
func (srv *Server) acceptLoop() {
for {
srv.Lock()
l := srv.listen
srv.Unlock()
if l == nil {
return
}
srv.fdl.Lock()
c, err := l.Accept()
if err != nil {
if c != nil {
c.Close()
}
srv.fdl.Unlock()
srv.qch <- newQueryErr(err)
return
}
srv.stats.IncAcceptConn()
c.(*net.TCPConn).SetKeepAlive(true)
err = c.SetReadTimeout(srv.config.Timeout)
if err != nil {
log.Printf("Set read timeout: %s\n", err)
c.Close()
srv.fdl.Unlock()
srv.qch <- newQueryErr(err)
return
}
err = c.SetWriteTimeout(srv.config.Timeout)
if err != nil {
log.Printf("Set write timeout: %s\n", err)
c.Close()
srv.fdl.Unlock()
srv.qch <- newQueryErr(err)
return
}
c = util.NewRunOnCloseConn(c, func() { srv.fdl.Unlock() })
ssc := NewStampedServerConn(c, nil)
srv.register(ssc)
go srv.read(ssc)
}
}