Hi Takashi,

On Mar 10 19:31, Takashi Yano wrote:
> @@ -590,6 +591,10 @@ child_info_spawn::worker (const char *prog_arg, const 
> char *const *argv,
>             {
>               fhandler_pipe *pipe = (fhandler_pipe *)(fhandler_base *) cfd;
>               pipe->set_pipe_non_blocking (false);
> +             pipew_duped = (fhandler_pipe *)
> +                     ccalloc (HEAP_FHANDLER, 1, sizeof (fhandler_pipe));
> +             pipew_duped = new (pipew_duped) fhandler_pipe;
> +             pipe->dup (pipew_duped, 0);
>               if (pipe->request_close_query_hdl ())
>                 need_send_sig = true;
>             }

The code setting up pipes and the dummy_tty is sufficiently complex,
so that I wonder if it shouldn't have

- its own methods and
- comments to describe why this stuff is necessary.

What about adding two methods, kind of like (the names are only
suggestion, albeit bad ones):

  child_info_spawn::noncygwin_child_pre_fork()

to keep the above stuff together (plus comments) and

  child_info_spawn::noncygwin_child_post_fork()

for the below code?

> @@ -597,6 +602,10 @@ child_info_spawn::worker (const char *prog_arg, const 
> char *const *argv,
>             {
>               fhandler_pipe *pipe = (fhandler_pipe *)(fhandler_base *) cfd;
>               pipe->set_pipe_non_blocking (false);
> +             piper_duped = (fhandler_pipe *)
> +                     ccalloc (HEAP_FHANDLER, 1, sizeof (fhandler_pipe));
> +             piper_duped = new (piper_duped) fhandler_pipe;
> +             pipe->dup (piper_duped, 0);
>             }
>  
>         if (need_send_sig)
> @@ -905,6 +914,19 @@ child_info_spawn::worker (const char *prog_arg, const 
> char *const *argv,
>             term_spawn_worker.cleanup ();
>             term_spawn_worker.close_handle_set ();
>           }
> +       if (pipew_duped)
> +         {
> +           bool is_nonblocking = pipew_duped->is_nonblocking ();
> +           pipew_duped->set_pipe_non_blocking (is_nonblocking);

Is that really right?  You're asking pipew_duped for its
nonblocking flag and then set pipew_duped to the same value...?

> +           pipew_duped->close ();
> +           cfree (pipew_duped);
> +         }


Thanks,
Corinna

Reply via email to