func (r *fake_conn) run_queue(conn *net.UnixConn) {
defer conn.Close()
for {
select {
case <-r.end:
return
default:
buffer := make([]byte, 1<<16)
conn.SetReadDeadline(time.Now().Add(1000 * time.Millisecond))
s, _, err := conn.ReadFrom(buffer)
switch t_err := err.(type) {
case nil:
case net.Error:
if !t_err.Timeout() {
panic(err)
}
default:
panic(err)
}
if s > 0 {
r.queue <- buffer[0:s]
}
}
}
}
func ReadFile(c *net.UnixConn, timeout time.Duration) (*os.File, error) {
oob := make([]byte, 64)
if timeout > 0 {
deadline := time.Now().Add(timeout)
if err := c.SetReadDeadline(deadline); err != nil {
return nil, err
}
}
_, oobn, flags, _, err := c.ReadMsgUnix(nil, oob)
if err != nil {
return nil, err
}
if flags != 0 || oobn <= 0 {
panic("ReadMsgUnix: flags != 0 || oobn <= 0")
}
// file descriptors are now open in this process
scm, err := syscall.ParseSocketControlMessage(oob[:oobn])
if err != nil {
return nil, err
}
if len(scm) != 1 {
panic("invalid scm message")
}
fds, err := syscall.ParseUnixRights(&scm[0])
if err != nil {
return nil, err
}
if len(fds) != 1 {
panic("invalid scm message")
}
return os.NewFile(uintptr(fds[0]), ""), nil
}