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Remove set_batch_flag_and_make_cleanup_restore_page_info

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This removes set_batch_flag_and_make_cleanup_restore_page_info and
make_cleanup_restore_page_info in favor of a new RAII class.  This
then allows for the removal of make_cleanup_restore_uinteger and
make_cleanup_restore_integer

ChangeLog
2017-10-03  Tom Tromey  <tom@tromey.com>

	* guile/scm-ports.c (ioscm_with_output_to_port_worker): Update.
	* top.c (execute_command_to_string): Update.
	* utils.c (make_cleanup_restore_page_info): Remove.
	(do_restore_page_info_cleanup): Remove.
	(set_batch_flag_and_restore_page_info):
	New.
	(make_cleanup_restore_page_info): Remove.
	(set_batch_flag_and_make_cleanup_restore_page_info): Remove.
	(~set_batch_flag_and_restore_page_info): New
	(make_cleanup_restore_uinteger): Remove.
	(make_cleanup_restore_integer): Remove.
	(struct restore_integer_closure): Remove.
	(restore_integer): Remove.
	* utils.h (struct set_batch_flag_and_restore_page_info): New
	class.
	(set_batch_flag_and_make_cleanup_restore_page_info): Remove.
	(make_cleanup_restore_page_info): Remove.
	(make_cleanup_restore_uinteger) Remove.
	(make_cleanup_restore_integer) Remove.
This commit is contained in:
Tom Tromey
2017-09-29 22:07:37 -06:00
parent 070365117b
commit b95de2b7ae
5 changed files with 58 additions and 85 deletions
Download Patch File Download Diff File Expand all files Collapse all files

83
gdb/utils.c
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@ -150,44 +150,6 @@ make_cleanup_free_section_addr_info (struct section_addr_info *addrs)
return make_cleanup (do_free_section_addr_info, addrs);
}
struct restore_integer_closure
{
int *variable;
int value;
};
static void
restore_integer (void *p)
{
struct restore_integer_closure *closure
= (struct restore_integer_closure *) p;
*(closure->variable) = closure->value;
}
/* Remember the current value of *VARIABLE and make it restored when
the cleanup is run. */
struct cleanup *
make_cleanup_restore_integer (int *variable)
{
struct restore_integer_closure *c = XNEW (struct restore_integer_closure);
c->variable = variable;
c->value = *variable;
return make_cleanup_dtor (restore_integer, (void *) c, xfree);
}
/* Remember the current value of *VARIABLE and make it restored when
the cleanup is run. */
struct cleanup *
make_cleanup_restore_uinteger (unsigned int *variable)
{
return make_cleanup_restore_integer ((int *) variable);
}
/* Helper for make_cleanup_unpush_target. */
static void
@ -1464,42 +1426,23 @@ filtered_printing_initialized (void)
return wrap_buffer != NULL;
}
/* Helper for make_cleanup_restore_page_info. */
static void
do_restore_page_info_cleanup (void *arg)
set_batch_flag_and_restore_page_info::set_batch_flag_and_restore_page_info ()
: m_save_lines_per_page (lines_per_page),
m_save_chars_per_line (chars_per_line),
m_save_batch_flag (batch_flag)
{
set_screen_size ();
set_width ();
}
/* Provide cleanup for restoring the terminal size. */
struct cleanup *
make_cleanup_restore_page_info (void)
{
struct cleanup *back_to;
back_to = make_cleanup (do_restore_page_info_cleanup, NULL);
make_cleanup_restore_uinteger (&lines_per_page);
make_cleanup_restore_uinteger (&chars_per_line);
return back_to;
}
/* Temporarily set BATCH_FLAG and the associated unlimited terminal size.
Provide cleanup for restoring the original state. */
struct cleanup *
set_batch_flag_and_make_cleanup_restore_page_info (void)
{
struct cleanup *back_to = make_cleanup_restore_page_info ();
make_cleanup_restore_integer (&batch_flag);
batch_flag = 1;
init_page_info ();
}
return back_to;
set_batch_flag_and_restore_page_info::~set_batch_flag_and_restore_page_info ()
{
batch_flag = m_save_batch_flag;
chars_per_line = m_save_chars_per_line;
lines_per_page = m_save_lines_per_page;
set_screen_size ();
set_width ();
}
/* Set the screen size based on LINES_PER_PAGE and CHARS_PER_LINE. */