From: Tom Tromey <tom@tromey.com>
To: gdb-patches@sourceware.org
Cc: Tom Tromey <tom@tromey.com>
Subject: [RFA 06/23] Change open_terminal_stream to return a gdb_file_up
Date: Wed, 03 May 2017 22:46:00 -0000 [thread overview]
Message-ID: <20170503224626.2818-7-tom@tromey.com> (raw)
In-Reply-To: <20170503224626.2818-1-tom@tromey.com>
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.
2017-05-02 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 9324d44..1dad15be 100644
--- a/gdb/ChangeLog
+++ b/gdb/ChangeLog
@@ -1,5 +1,10 @@
2017-05-02 Tom Tromey <tom@tromey.com>
+ * top.c (open_terminal_stream): Return gdb_file_up.
+ (new_ui_command): Update.
+
+2017-05-02 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 3de8a26..652c55a 100644
--- a/gdb/top.c
+++ b/gdb/top.c
@@ -345,16 +345,16 @@ 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. */
@@ -364,7 +364,7 @@ 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;
@@ -389,18 +389,13 @@ 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;
@@ -410,6 +405,11 @@ 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. */
--
2.9.3
next prev parent reply other threads:[~2017-05-03 22:46 UTC|newest]
Thread overview: 59+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-05-03 22:46 [RFA 00/23] More miscellaneous C++-ification Tom Tromey
2017-05-03 22:46 ` [RFA 10/23] Remove make_cleanup_restore_current_language Tom Tromey
2017-06-02 18:18 ` Pedro Alves
2017-06-05 13:09 ` Tom Tromey
2017-05-03 22:46 ` [RFA 03/23] Use gdb_file_up in find_and_open_script Tom Tromey
2017-06-02 17:24 ` Pedro Alves
2017-07-23 16:08 ` Tom Tromey
2017-05-03 22:46 ` [RFA 01/23] Introduce and use ui_out_emit_table Tom Tromey
2017-06-02 17:04 ` Pedro Alves
2017-05-03 22:46 ` [RFA 20/23] Avoid some manual memory management in Python Tom Tromey
2017-06-05 13:55 ` Pedro Alves
2017-05-03 22:46 ` [RFA 12/23] More uses of scoped_restore Tom Tromey
2017-06-02 18:31 ` Pedro Alves
2017-05-03 22:46 ` [RFA 09/23] Remove close cleanup Tom Tromey
2017-06-02 18:08 ` Pedro Alves
2017-07-19 22:52 ` Tom Tromey
2017-07-31 19:08 ` Simon Marchi
2017-08-01 21:52 ` Tom Tromey
2017-05-03 22:46 ` [RFA 02/23] Introduce and use gdb_file_up Tom Tromey
2017-06-02 17:08 ` Pedro Alves
2017-05-03 22:46 ` [RFA 23/23] Use gdb_argv_up in Python Tom Tromey
2017-06-05 16:29 ` Pedro Alves
2017-07-19 22:52 ` Tom Tromey
2017-07-19 22:51 ` Tom Tromey
2017-05-03 22:46 ` [RFA 11/23] Remove make_cleanup_free_so Tom Tromey
2017-06-02 18:25 ` Pedro Alves
2017-05-03 22:46 ` [RFA 22/23] Make gdb_buildargv return a unique pointer Tom Tromey
2017-06-05 16:21 ` Pedro Alves
2017-07-23 17:26 ` Tom Tromey
2017-05-03 22:46 ` [RFA 08/23] Remove an unlink cleanup Tom Tromey
2017-06-02 17:37 ` Pedro Alves
2017-05-03 22:46 ` [RFA 21/23] Remove a cleanup in Python Tom Tromey
2017-06-05 13:56 ` Pedro Alves
2017-05-03 22:46 ` [RFA 14/23] Use unique_xmalloc_ptr in jit.c Tom Tromey
2017-06-02 18:42 ` Pedro Alves
2017-06-05 13:09 ` Tom Tromey
2017-05-03 22:46 ` [RFA 05/23] Use gdb_file_up in source.c Tom Tromey
2017-06-02 17:27 ` Pedro Alves
2017-05-03 22:46 ` [RFA 15/23] Use std::vector to avoid cleanups Tom Tromey
2017-06-02 19:22 ` Pedro Alves
2017-07-23 16:06 ` Tom Tromey
2017-05-03 22:46 ` [RFA 07/23] Remove make_cleanup_fclose Tom Tromey
2017-06-02 17:32 ` Pedro Alves
2017-05-03 22:46 ` [RFA 16/23] Remove in_user_command Tom Tromey
2017-06-05 13:27 ` Pedro Alves
2017-05-03 22:46 ` [RFA 19/23] Replace do_restore_instream_cleanup with scoped_restore Tom Tromey
2017-06-05 13:49 ` Pedro Alves
2017-05-03 22:46 ` [RFA 18/23] Use a scoped_restore for command_nest_depth Tom Tromey
2017-06-05 13:38 ` Pedro Alves
2017-05-03 22:46 ` Tom Tromey [this message]
2017-06-02 17:31 ` [RFA 06/23] Change open_terminal_stream to return a gdb_file_up Pedro Alves
2017-05-03 22:46 ` [RFA 13/23] Replace tui_restore_gdbout with scoped_restore Tom Tromey
2017-06-02 18:34 ` Pedro Alves
2017-05-03 22:46 ` [RFA 17/23] Use a scoped_restore for user_call_depth Tom Tromey
2017-06-05 13:32 ` Pedro Alves
2017-06-05 16:56 ` Tom Tromey
2017-05-03 22:46 ` [RFA 04/23] Use gdb_file_up in fbsd-nat.c Tom Tromey
2017-05-03 23:52 ` John Baldwin
2017-05-29 17:31 ` [RFA 00/23] More miscellaneous C++-ification Tom Tromey
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