Add a level of indirection to terminal characteristics.

* src/termchar.h (struct terminal): New struct.
(must_write_spaces, min_padding_speed, line_ins_del_ok)
(char_ins_del_ok, scroll_region_ok, scroll_region_cost)
(memory_below_frame, fast_clear_end_of_line): Moved to struct
terminal.
(current_terminal): New variable.
(CURRENT_TERMINAL, TERMINAL_*): New accessor macros.
(min_padding_speed, dont_calculate_costs): Commented out (unused).

* src/term.c (_current_terminal): New variable.  Will be removed when
true multi-tty support is implemented.

* src/termopts.h (no_redraw_on_reenter): Moved here.

* src/term.c (set_terminal_window, ins_del_lines, calculate_costs)
(term_init): Use the accessor macros for terminal characteristics.
* src/dispnew.c (line_hash_code, line_draw_cost)
(direct_output_for_insert, update_frame_1, scrolling)
(update_frame_line): Ditto.
* src/macterm.c (mac_initialize): Ditto.
* src/msdos.c (internal_terminal_init): Ditto.
* src/scroll.c (calculate_scrolling, calculate_direct_scrolling)
(scrolling_1, scroll_cost): Ditto.
* src/sysdep.c (hft_init): Ditto.
* src/w32term.c (w32_initialize): Ditto.
* src/xdisp.c (try_window_id): Ditto.
* src/xterm.c (x_initialize): Ditto.

* etc/TODO: Add pointer to my tla archive.

git-archimport-id: lorentey@elte.hu--2004/emacs--multi-tty--0--patch-1

1 files changed, 7 insertions, 6 deletions

diff --git a/src/macterm.c b/src/macterm.c
index f0f5a3f4722..7d27e5430eb 100644
--- a/src/macterm.c
+++ b/src/macterm.c
@@ -8674,12 +8674,13 @@ mac_initialize ()
   redeem_scroll_bar_hook = XTredeem_scroll_bar;
   judge_scroll_bars_hook = XTjudge_scroll_bars;
 
-  scroll_region_ok = 1;         /* we'll scroll partial frames */
-  char_ins_del_ok = 1;
-  line_ins_del_ok = 1;          /* we'll just blt 'em */
-  fast_clear_end_of_line = 1;   /* X does this well */
-  memory_below_frame = 0;       /* we don't remember what scrolls
-                                   off the bottom */
+  TERMINAL_SCROLL_REGION_OK (CURRENT_TERMINAL ()) = 1; /* we'll scroll partial frames */
+  TERMINAL_CHAR_INS_DEL_OK (CURRENT_TERMINAL ()) = 1;
+  TERMINAL_LINE_INS_DEL_OK (CURRENT_TERMINAL ()) = 1; /* we'll just blt 'em */
+  TERMINAL_FAST_CLEAR_END_OF_LINE (CURRENT_TERMINAL ()) = 1; /* X does this well */
+  TERMINAL_MEMORY_BELOW_FRAME (CURRENT_TERMINAL ()) = 0; /* we don't remember what
+                                                         scrolls off the
+                                                         bottom */
   baud_rate = 19200;
 
   x_noop_count = 0;