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Make TUI window handle a unique_ptr 

This changes tui_gen_win_info::handle to be a specialization of
unique_ptr.  This is perhaps mildly uglier in some spots, due to the
proliferation of "get"; but on the other hand it cleans up some manual
management and it allows for the removal of tui_delete_win.

gdb/ChangeLog
2019-10-09  Tom Tromey  <tom@tromey.com>

	* tui/tui-wingeneral.h (tui_delete_win): Don't declare.
	* tui/tui-stack.c (tui_locator_window::rerender): Update.
	* tui/tui-command.c (tui_cmd_window::resize)
	(tui_refresh_cmd_win): Update.
	* tui/tui-win.c (tui_resize_all, tui_set_focus_command): Update.
	* tui/tui.c (tui_rl_other_window, tui_enable): Update.
	* tui/tui-data.c (~tui_gen_win_info): Remove.
	* tui/tui-layout.c (tui_gen_win_info::resize): Update.
	* tui/tui-io.c (update_cmdwin_start_line, tui_putc, tui_puts)
	(tui_redisplay_readline, tui_mld_flush)
	(tui_mld_erase_entire_line, tui_mld_getc, tui_getc): Update.
	* tui/tui-regs.c (tui_data_window::delete_data_content_windows)
	(tui_data_window::erase_data_content)
	(tui_data_item_window::rerender)
	(tui_data_item_window::refresh_window): Update.
	* tui/tui-wingeneral.c (tui_gen_win_info::refresh_window)
	(box_win, tui_gen_win_info::make_window)
	(tui_gen_win_info::make_visible): Update.
	(tui_delete_win): Remove.
	* tui/tui-winsource.c
	(tui_source_window_base::do_erase_source_content): Update.
	(tui_show_source_line, tui_source_window_base::update_tab_width)
	(tui_source_window_base::update_exec_info): Update.
	* tui/tui-data.h (struct curses_deleter): New.
	(struct tui_gen_win_info) <handle>: Now a unique_ptr.
	(struct tui_gen_win_info) <~tui_gen_win_info>: Define.
This commit is contained in:
Tom Tromey 2019-10-01 17:29:49 -06:00
parent a7798e7f7d
commit 7523da63ca
13 changed files with 102 additions and 87 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

29
gdb/ChangeLog
View File

@ -1,3 +1,32 @@
2019-10-09 Tom Tromey <tom@tromey.com>
* tui/tui-wingeneral.h (tui_delete_win): Don't declare.
* tui/tui-stack.c (tui_locator_window::rerender): Update.
* tui/tui-command.c (tui_cmd_window::resize)
(tui_refresh_cmd_win): Update.
* tui/tui-win.c (tui_resize_all, tui_set_focus_command): Update.
* tui/tui.c (tui_rl_other_window, tui_enable): Update.
* tui/tui-data.c (~tui_gen_win_info): Remove.
* tui/tui-layout.c (tui_gen_win_info::resize): Update.
* tui/tui-io.c (update_cmdwin_start_line, tui_putc, tui_puts)
(tui_redisplay_readline, tui_mld_flush)
(tui_mld_erase_entire_line, tui_mld_getc, tui_getc): Update.
* tui/tui-regs.c (tui_data_window::delete_data_content_windows)
(tui_data_window::erase_data_content)
(tui_data_item_window::rerender)
(tui_data_item_window::refresh_window): Update.
* tui/tui-wingeneral.c (tui_gen_win_info::refresh_window)
(box_win, tui_gen_win_info::make_window)
(tui_gen_win_info::make_visible): Update.
(tui_delete_win): Remove.
* tui/tui-winsource.c
(tui_source_window_base::do_erase_source_content): Update.
(tui_show_source_line, tui_source_window_base::update_tab_width)
(tui_source_window_base::update_exec_info): Update.
* tui/tui-data.h (struct curses_deleter): New.
(struct tui_gen_win_info) <handle>: Now a unique_ptr.
(struct tui_gen_win_info) <~tui_gen_win_info>: Define.
2019-10-09 Tom Tromey <tom@tromey.com>
* tui/tui-wingeneral.h (struct tui_gen_win_info): Don't declare.

8
gdb/tui/tui-command.c
View File

@ -64,10 +64,10 @@ tui_cmd_window::resize (int height_, int width_, int origin_x, int origin_y)
it. However we can at least move it and keep the old size if
wresize isn't available. */
#ifdef HAVE_WRESIZE
wresize (handle, height, width);
wresize (handle.get (), height, width);
#endif
mvwin (handle, origin.y, origin.x);
wmove (handle, 0, 0);
mvwin (handle.get (), origin.y, origin.x);
wmove (handle.get (), 0, 0);
}
}
@ -76,7 +76,7 @@ tui_cmd_window::resize (int height_, int width_, int origin_x, int origin_y)
void
tui_refresh_cmd_win (void)
{
WINDOW *w = TUI_CMD_WIN->handle;
WINDOW *w = TUI_CMD_WIN->handle.get ();
wrefresh (w);

5
gdb/tui/tui-data.c
View File

@ -205,11 +205,6 @@ tui_win_info::tui_win_info (enum tui_win_type type)
{
}
tui_gen_win_info::~tui_gen_win_info ()
{
tui_delete_win (handle);
}
void
tui_win_info::rerender ()
{

15
gdb/tui/tui-data.h
View File

@ -36,6 +36,15 @@ struct tui_point
int x, y;
};
/* A deleter that calls delwin. */
struct curses_deleter
{
void operator() (WINDOW *win) const
{
delwin (win);
}
};
/* Generic window information. */
struct tui_gen_win_info
{
@ -57,7 +66,9 @@ protected:
public:
tui_gen_win_info (tui_gen_win_info &&) = default;
virtual ~tui_gen_win_info ();
virtual ~tui_gen_win_info ()
{
}
/* Call to refresh this window. */
virtual void refresh_window ();
@ -83,7 +94,7 @@ public:
}
/* Window handle. */
WINDOW *handle = nullptr;
std::unique_ptr<WINDOW, curses_deleter> handle;
/* Type of window. */
enum tui_win_type type;
/* Window width. */

23
gdb/tui/tui-io.c
View File

@ -179,8 +179,7 @@ do_tui_putc (WINDOW *w, char c)
static void
update_cmdwin_start_line ()
{
TUI_CMD_WIN->start_line
= getcury (TUI_CMD_WIN->handle);
TUI_CMD_WIN->start_line = getcury (TUI_CMD_WIN->handle.get ());
}
/* Print a character in the curses command window. The output is
@ -190,9 +189,7 @@ update_cmdwin_start_line ()
static void
tui_putc (char c)
{
WINDOW *w = TUI_CMD_WIN->handle;
do_tui_putc (w, c);
do_tui_putc (TUI_CMD_WIN->handle.get (), c);
update_cmdwin_start_line ();
}
@ -495,7 +492,7 @@ tui_puts_internal (WINDOW *w, const char *string, int *height)
}
}
}
if (TUI_CMD_WIN != nullptr && w == TUI_CMD_WIN->handle)
if (TUI_CMD_WIN != nullptr && w == TUI_CMD_WIN->handle.get ())
update_cmdwin_start_line ();
if (saw_nl)
wrefresh (w);
@ -509,7 +506,7 @@ void
tui_puts (const char *string, WINDOW *w)
{
if (w == nullptr)
w = TUI_CMD_WIN->handle;
w = TUI_CMD_WIN->handle.get ();
tui_puts_internal (w, string, nullptr);
}
@ -545,13 +542,13 @@ tui_redisplay_readline (void)
c_pos = -1;
c_line = -1;
w = TUI_CMD_WIN->handle;
w = TUI_CMD_WIN->handle.get ();
start_line = TUI_CMD_WIN->start_line;
wmove (w, start_line, 0);
prev_col = 0;
height = 1;
if (prompt != nullptr)
tui_puts_internal (TUI_CMD_WIN->handle, prompt, &height);
tui_puts_internal (w, prompt, &height);
prev_col = getcurx (w);
for (in = 0; in <= rl_end; in++)
@ -670,7 +667,7 @@ tui_mld_puts (const struct match_list_displayer *displayer, const char *s)
static void
tui_mld_flush (const struct match_list_displayer *displayer)
{
wrefresh (TUI_CMD_WIN->handle);
wrefresh (TUI_CMD_WIN->handle.get ());
}
/* TUI version of displayer.erase_entire_line. */
@ -678,7 +675,7 @@ tui_mld_flush (const struct match_list_displayer *displayer)
static void
tui_mld_erase_entire_line (const struct match_list_displayer *displayer)
{
WINDOW *w = TUI_CMD_WIN->handle;
WINDOW *w = TUI_CMD_WIN->handle.get ();
int cur_y = getcury (w);
wmove (w, cur_y, 0);
@ -716,7 +713,7 @@ gdb_wgetch (WINDOW *win)
static int
tui_mld_getc (FILE *fp)
{
WINDOW *w = TUI_CMD_WIN->handle;
WINDOW *w = TUI_CMD_WIN->handle.get ();
int c = gdb_wgetch (w);
return c;
@ -970,7 +967,7 @@ tui_getc (FILE *fp)
int ch;
WINDOW *w;
w = TUI_CMD_WIN->handle;
w = TUI_CMD_WIN->handle.get ();
#ifdef TUI_USE_PIPE_FOR_READLINE
/* Flush readline output. */

9
gdb/tui/tui-layout.c
View File

@ -511,12 +511,11 @@ tui_gen_win_info::resize (int height_, int width_,
if (handle != nullptr)
{
#ifdef HAVE_WRESIZE
wresize (handle, height, width);
mvwin (handle, origin.y, origin.x);
wmove (handle, 0, 0);
wresize (handle.get (), height, width);
mvwin (handle.get (), origin.y, origin.x);
wmove (handle.get (), 0, 0);
#else
tui_delete_win (handle);
handle = NULL;
handle.reset (nullptr);
#endif
}

29
gdb/tui/tui-regs.c
View File

@ -361,17 +361,14 @@ void
tui_data_window::delete_data_content_windows ()
{
for (auto &&win : m_regs_content)
{
tui_delete_win (win.handle);
win.handle = NULL;
}
win.handle.reset (nullptr);
}
void
tui_data_window::erase_data_content (const char *prompt)
{
werase (handle);
werase (handle.get ());
check_and_display_highlight_if_needed ();
if (prompt != NULL)
{
@ -382,9 +379,9 @@ tui_data_window::erase_data_content (const char *prompt)
x_pos = 1;
else
x_pos = half_width - strlen (prompt);
mvwaddstr (handle, (height / 2), x_pos, (char *) prompt);
mvwaddstr (handle.get (), (height / 2), x_pos, (char *) prompt);
}
wrefresh (handle);
wrefresh (handle.get ());
}
/* See tui-regs.h. */
@ -470,21 +467,21 @@ tui_data_item_window::rerender ()
{
int i;
scrollok (handle, FALSE);
scrollok (handle.get (), FALSE);
if (highlight)
/* We ignore the return value, casting it to void in order to avoid
a compiler warning. The warning itself was introduced by a patch
to ncurses 5.7 dated 2009-08-29, changing this macro to expand
to code that causes the compiler to generate an unused-value
warning. */
(void) wstandout (handle);
(void) wstandout (handle.get ());
wmove (handle, 0, 0);
wmove (handle.get (), 0, 0);
for (i = 1; i < width; i++)
waddch (handle, ' ');
wmove (handle, 0, 0);
waddch (handle.get (), ' ');
wmove (handle.get (), 0, 0);
if (content)
waddstr (handle, content.get ());
waddstr (handle.get (), content.get ());
if (highlight)
/* We ignore the return value, casting it to void in order to avoid
@ -492,7 +489,7 @@ tui_data_item_window::rerender ()
to ncurses 5.7 dated 2009-08-29, changing this macro to expand
to code that causes the compiler to generate an unused-value
warning. */
(void) wstandend (handle);
(void) wstandend (handle.get ());
refresh_window ();
}
@ -504,8 +501,8 @@ tui_data_item_window::refresh_window ()
/* This seems to be needed because the data items are nested
windows, which according to the ncurses man pages aren't well
supported. */
touchwin (handle);
wrefresh (handle);
touchwin (handle.get ());
wrefresh (handle.get ());
}
}

14
gdb/tui/tui-stack.c
View File

@ -229,19 +229,19 @@ tui_locator_window::rerender ()
if (handle != NULL)
{
std::string string = make_status_line ();
scrollok (handle, FALSE);
wmove (handle, 0, 0);
scrollok (handle.get (), FALSE);
wmove (handle.get (), 0, 0);
/* We ignore the return value from wstandout and wstandend, casting
them to void in order to avoid a compiler warning. The warning
itself was introduced by a patch to ncurses 5.7 dated 2009-08-29,
changing these macro to expand to code that causes the compiler
to generate an unused-value warning. */
(void) wstandout (handle);
waddstr (handle, string.c_str ());
wclrtoeol (handle);
(void) wstandend (handle);
(void) wstandout (handle.get ());
waddstr (handle.get (), string.c_str ());
wclrtoeol (handle.get ());
(void) wstandend (handle.get ());
refresh_window ();
wmove (handle, 0, 0);
wmove (handle.get (), 0, 0);
}
}

6
gdb/tui/tui-win.c
View File

@ -529,7 +529,7 @@ tui_resize_all (void)
#endif
/* Turn keypad off while we resize. */
if (win_with_focus != TUI_CMD_WIN)
keypad (TUI_CMD_WIN->handle, FALSE);
keypad (TUI_CMD_WIN->handle.get (), FALSE);
tui_update_gdb_sizes ();
tui_set_term_height_to (screenheight);
tui_set_term_width_to (screenwidth);
@ -639,7 +639,7 @@ tui_resize_all (void)
/* Turn keypad back on, unless focus is in the command
window. */
if (win_with_focus != TUI_CMD_WIN)
keypad (TUI_CMD_WIN->handle, TRUE);
keypad (TUI_CMD_WIN->handle.get (), TRUE);
}
}
@ -791,7 +791,7 @@ tui_set_focus_command (const char *arg, int from_tty)
error (_("Window \"%s\" is not visible"), arg);
tui_set_win_focus_to (win_info);
keypad (TUI_CMD_WIN->handle, (win_info != TUI_CMD_WIN));
keypad (TUI_CMD_WIN->handle.get (), win_info != TUI_CMD_WIN);
printf_filtered (_("Focus set to %s window.\n"),
tui_win_with_focus ()->name ());
}

22
gdb/tui/tui-wingeneral.c
View File

@ -34,18 +34,9 @@ void
tui_gen_win_info::refresh_window ()
{
if (handle != NULL)
wrefresh (handle);
wrefresh (handle.get ());
}
/* Function to delete the curses window, checking for NULL. */
void
tui_delete_win (WINDOW *window)
{
if (window != NULL)
delwin (window);
}
/* Draw a border arround the window. */
static void
box_win (struct tui_win_info *win_info,
@ -54,7 +45,7 @@ box_win (struct tui_win_info *win_info,
WINDOW *win;
int attrs;
win = win_info->handle;
win = win_info->handle.get ();
if (highlight_flag)
attrs = tui_active_border_attrs;
else
@ -132,9 +123,9 @@ tui_win_info::check_and_display_highlight_if_needed ()
void
tui_gen_win_info::make_window ()
{
handle = newwin (height, width, origin.y, origin.x);
handle.reset (newwin (height, width, origin.y, origin.x));
if (handle != NULL)
scrollok (handle, TRUE);
scrollok (handle.get (), TRUE);
}
void
@ -157,10 +148,7 @@ tui_gen_win_info::make_visible (bool visible)
if (visible)
make_window ();
else
{
tui_delete_win (handle);
handle = NULL;
}
handle.reset (nullptr);
}
/* See tui-wingeneral.h. */

1
gdb/tui/tui-wingeneral.h
View File

@ -32,6 +32,5 @@ extern void tui_make_all_invisible (void);
extern void tui_unhighlight_win (struct tui_win_info *);
extern void tui_highlight_win (struct tui_win_info *);
extern void tui_refresh_all ();
extern void tui_delete_win (WINDOW *window);
#endif /* TUI_TUI_WINGENERAL_H */

22
gdb/tui/tui-winsource.c
View File

@ -193,14 +193,14 @@ tui_source_window_base::do_erase_source_content (const char *str)
content.clear ();
if (handle != NULL)
{
werase (handle);
werase (handle.get ());
check_and_display_highlight_if_needed ();
if (strlen (str) >= half_width)
x_pos = 1;
else
x_pos = half_width - strlen (str);
mvwaddstr (handle,
mvwaddstr (handle.get (),
(height / 2),
x_pos,
(char *) str);
@ -219,19 +219,19 @@ tui_show_source_line (struct tui_source_window_base *win_info, int lineno)
line = &win_info->content[lineno - 1];
if (line->is_exec_point)
tui_set_reverse_mode (win_info->handle, true);
tui_set_reverse_mode (win_info->handle.get (), true);
wmove (win_info->handle, lineno, TUI_EXECINFO_SIZE);
tui_puts (line->line.get (), win_info->handle);
wmove (win_info->handle.get (), lineno, TUI_EXECINFO_SIZE);
tui_puts (line->line.get (), win_info->handle.get ());
if (line->is_exec_point)
tui_set_reverse_mode (win_info->handle, false);
tui_set_reverse_mode (win_info->handle.get (), false);
/* Clear to end of line but stop before the border. */
x = getcurx (win_info->handle);
x = getcurx (win_info->handle.get ());
while (x + 1 < win_info->width)
{
waddch (win_info->handle, ' ');
x = getcurx (win_info->handle);
waddch (win_info->handle.get (), ' ');
x = getcurx (win_info->handle.get ());
}
}
@ -261,7 +261,7 @@ tui_source_window_base::tui_source_window_base (enum tui_win_type type)
void
tui_source_window_base::update_tab_width ()
{
werase (handle);
werase (handle.get ());
rerender ();
}
@ -479,7 +479,7 @@ tui_source_window_base::update_exec_info ()
if (src_element->is_exec_point)
element[TUI_EXEC_POS] = '>';
mvwaddstr (handle, i + 1, 1, element);
mvwaddstr (handle.get (), i + 1, 1, element);
}
refresh_window ();
}

6
gdb/tui/tui.c
View File

@ -237,7 +237,7 @@ tui_rl_other_window (int count, int key)
if (win_info)
{
tui_set_win_focus_to (win_info);
keypad (TUI_CMD_WIN->handle, (win_info != TUI_CMD_WIN));
keypad (TUI_CMD_WIN->handle.get (), win_info != TUI_CMD_WIN);
}
return 0;
}
@ -478,8 +478,8 @@ tui_enable (void)
tui_show_frame_info (0);
tui_set_layout (SRC_COMMAND);
tui_set_win_focus_to (TUI_SRC_WIN);
keypad (TUI_CMD_WIN->handle, TRUE);
wrefresh (TUI_CMD_WIN->handle);
keypad (TUI_CMD_WIN->handle.get (), TRUE);
wrefresh (TUI_CMD_WIN->handle.get ());
tui_finish_init = 0;
}
else