From: Simon Marchi <simon.marchi@polymtl.ca>
To: Tom Tromey <tom@tromey.com>
Cc: gdb-patches@sourceware.org
Subject: Re: [RFA v2 06/24] Change open_terminal_stream to return a gdb_file_up
Date: Sun, 30 Jul 2017 19:04:00 -0000 [thread overview]
Message-ID: <f4e2bdb1555d64e32557aecdf0a1a601@polymtl.ca> (raw)
In-Reply-To: <20170725172107.9799-7-tom@tromey.com>
On 2017-07-25 19:20, Tom Tromey wrote:
> This changes open_terminal_stream to return a gdb_file_up, eliminating
> another use of make_cleanup_fclose. Arguably perhaps new_ui should
> take ownership of the files using a move, but there is at least one
> spot where this isn't appropriate (or at least not currently done), so
> I elected to use a more minimal approach.
>
> ChangeLog
> 2017-07-25 Tom Tromey <tom@tromey.com>
>
> * top.c (open_terminal_stream): Return gdb_file_up.
> (new_ui_command): Update.
> ---
> gdb/ChangeLog | 5 +++++
> gdb/top.c | 24 ++++++++++++------------
> 2 files changed, 17 insertions(+), 12 deletions(-)
>
> diff --git a/gdb/ChangeLog b/gdb/ChangeLog
> index 4c23f79..c1730dd 100644
> --- a/gdb/ChangeLog
> +++ b/gdb/ChangeLog
> @@ -1,5 +1,10 @@
> 2017-07-25 Tom Tromey <tom@tromey.com>
>
> + * top.c (open_terminal_stream): Return gdb_file_up.
> + (new_ui_command): Update.
> +
> +2017-07-25 Tom Tromey <tom@tromey.com>
> +
> * source.c (print_source_lines_base, forward_search_command)
> (reverse_search_command): Use gdb_file_up.
>
> diff --git a/gdb/top.c b/gdb/top.c
> index 4c53efd..2504eb6 100644
> --- a/gdb/top.c
> +++ b/gdb/top.c
> @@ -346,16 +346,16 @@ make_delete_ui_cleanup (struct ui *ui)
> /* Open file named NAME for read/write, making sure not to make it the
> controlling terminal. */
>
> -static FILE *
> +static gdb_file_up
> open_terminal_stream (const char *name)
> {
> int fd;
>
> - fd = open (name, O_RDWR | O_NOCTTY);
> + fd = gdb_open_cloexec (name, O_RDWR | O_NOCTTY, 0);
> if (fd < 0)
> perror_with_name (_("opening terminal failed"));
>
> - return fdopen (fd, "w+");
> + return gdb_file_up (fdopen (fd, "w+"));
> }
>
> /* Implementation of the "new-ui" command. */
> @@ -365,7 +365,7 @@ new_ui_command (char *args, int from_tty)
> {
> struct ui *ui;
> struct interp *interp;
> - FILE *stream[3] = { NULL, NULL, NULL };
> + gdb_file_up stream[3];
> int i;
> int res;
> int argc;
> @@ -390,18 +390,13 @@ new_ui_command (char *args, int from_tty)
> {
> scoped_restore save_ui = make_scoped_restore (¤t_ui);
>
> - failure_chain = make_cleanup (null_cleanup, NULL);
> -
> /* Open specified terminal, once for each of
> stdin/stdout/stderr. */
> for (i = 0; i < 3; i++)
> - {
> - stream[i] = open_terminal_stream (tty_name);
> - make_cleanup_fclose (stream[i]);
> - }
> + stream[i] = open_terminal_stream (tty_name);
>
> - ui = new_ui (stream[0], stream[1], stream[2]);
> - make_cleanup (delete_ui_cleanup, ui);
> + ui = new_ui (stream[0].get (), stream[1].get (), stream[2].get
> ());
> + failure_chain = make_cleanup (delete_ui_cleanup, ui);
>
> ui->async = 1;
>
> @@ -411,6 +406,11 @@ new_ui_command (char *args, int from_tty)
>
> interp_pre_command_loop (top_level_interpreter ());
>
> + /* Make sure the files are not closed. */
> + stream[0].release ();
> + stream[1].release ();
> + stream[2].release ();
> +
> discard_cleanups (failure_chain);
>
> /* This restores the previous UI and frees argv. */
LGTM.
next prev parent reply other threads:[~2017-07-30 19:04 UTC|newest]
Thread overview: 49+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-07-25 17:24 [RFA v2 00/24] More miscellaneous C++-ification Tom Tromey
2017-07-25 17:21 ` [RFA v2 19/24] Replace do_restore_instream_cleanup with scoped_restore Tom Tromey
2017-07-25 17:21 ` [RFA v2 18/24] Use a scoped_restore for command_nest_depth Tom Tromey
2017-07-25 17:21 ` [RFA v2 23/24] Use gdb_argv in Python Tom Tromey
2017-07-31 20:26 ` Simon Marchi
2017-07-25 17:21 ` [RFA v2 22/24] Introduce gdb_argv, a class wrapper for buildargv Tom Tromey
2017-07-31 20:22 ` Simon Marchi
2017-07-25 17:22 ` [RFA v2 12/24] More uses of scoped_restore Tom Tromey
2017-07-25 17:22 ` [RFA v2 05/24] Use gdb_file_up in source.c Tom Tromey
2017-07-30 18:59 ` Simon Marchi
2017-07-25 17:22 ` [RFA v2 16/24] Remove in_user_command Tom Tromey
2017-07-25 17:24 ` [RFA v2 06/24] Change open_terminal_stream to return a gdb_file_up Tom Tromey
2017-07-30 19:04 ` Simon Marchi [this message]
2017-07-25 17:24 ` [RFA v2 08/24] Remove an unlink cleanup Tom Tromey
2017-07-31 18:47 ` Simon Marchi
2017-07-25 17:24 ` [RFA v2 09/24] Remove close cleanup Tom Tromey
2017-07-31 19:09 ` Simon Marchi
2017-07-25 17:24 ` [RFA v2 24/24] Remove make_cleanup_freeargv and gdb_buildargv Tom Tromey
2017-07-31 20:26 ` Simon Marchi
2017-07-25 17:25 ` [RFA v2 10/24] Remove make_cleanup_restore_current_language Tom Tromey
2017-07-31 19:21 ` Simon Marchi
2017-07-31 22:17 ` Tom Tromey
2017-08-01 8:44 ` Simon Marchi
2017-07-25 17:26 ` [RFA v2 07/24] Remove make_cleanup_fclose Tom Tromey
2017-07-30 19:05 ` Simon Marchi
2017-07-25 17:26 ` [RFA v2 02/24] Introduce and use gdb_file_up Tom Tromey
2017-07-29 23:40 ` Simon Marchi
2017-07-30 16:25 ` Tom Tromey
2017-07-30 18:31 ` Simon Marchi
2017-07-25 17:26 ` [RFA v2 21/24] Remove a cleanup in Python Tom Tromey
2017-07-25 17:26 ` [RFA v2 04/24] Use gdb_file_up in fbsd-nat.c Tom Tromey
2017-07-29 23:56 ` Simon Marchi
2017-07-25 17:26 ` [RFA v2 01/24] Introduce and use ui_out_emit_table Tom Tromey
2017-07-29 23:10 ` Simon Marchi
2017-07-30 16:23 ` Tom Tromey
2017-07-30 18:29 ` Simon Marchi
2017-07-31 22:12 ` Tom Tromey
2017-07-25 17:27 ` [RFA v2 13/24] Replace tui_restore_gdbout with scoped_restore Tom Tromey
2017-07-25 17:27 ` [RFA v2 14/24] Use unique_xmalloc_ptr in jit.c Tom Tromey
2017-07-31 19:25 ` Simon Marchi
2017-07-25 17:27 ` [RFA v2 15/24] Use containers to avoid cleanups Tom Tromey
2017-07-31 19:42 ` Simon Marchi
2017-07-25 17:27 ` [RFA v2 03/24] Change return type of find_and_open_script Tom Tromey
2017-07-29 23:54 ` Simon Marchi
2017-07-30 16:27 ` Tom Tromey
2017-07-25 17:51 ` [RFA v2 20/24] Avoid some manual memory management in Python Tom Tromey
2017-07-25 18:02 ` [RFA v2 17/24] Remove user_call_depth Tom Tromey
2017-07-31 19:46 ` Simon Marchi
2017-07-25 18:04 ` [RFA v2 11/24] Remove make_cleanup_free_so Tom Tromey
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