Mercurial > hg > early-roguelike
annotate srogue/list.c @ 162:600873555ec0
Don't swap signal handlers in md_shellescape().
md_shellescape() sets SIGINT and SIGQUIT to be ignored, storing the
previous handlers, and restores them after the shell exits. But it
mixed up the two handlers.
Since the signals were usually handled by the same function, this fix
doesn't have much effect, but anything that makes signal code less
confusing is a good thing.
author | John "Elwin" Edwards |
---|---|
date | Mon, 08 Jun 2015 10:01:25 -0400 |
parents | d6b7c3fb37ea |
children | 94a0d9dd5ce1 |
rev | line source |
---|---|
36
2128c7dc8a40
Import Super-Rogue 9.0 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff
changeset
|
1 /* |
2128c7dc8a40
Import Super-Rogue 9.0 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff
changeset
|
2 * Functions for dealing with linked lists of goodies |
2128c7dc8a40
Import Super-Rogue 9.0 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff
changeset
|
3 * |
2128c7dc8a40
Import Super-Rogue 9.0 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff
changeset
|
4 * @(#)list.c 9.0 (rdk) 7/17/84 |
2128c7dc8a40
Import Super-Rogue 9.0 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff
changeset
|
5 * |
2128c7dc8a40
Import Super-Rogue 9.0 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff
changeset
|
6 * Super-Rogue |
2128c7dc8a40
Import Super-Rogue 9.0 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff
changeset
|
7 * Copyright (C) 1984 Robert D. Kindelberger |
2128c7dc8a40
Import Super-Rogue 9.0 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff
changeset
|
8 * All rights reserved. |
2128c7dc8a40
Import Super-Rogue 9.0 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff
changeset
|
9 * |
2128c7dc8a40
Import Super-Rogue 9.0 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff
changeset
|
10 * Based on "Rogue: Exploring the Dungeons of Doom" |
2128c7dc8a40
Import Super-Rogue 9.0 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff
changeset
|
11 * Copyright (C) 1980, 1981 Michael Toy, Ken Arnold and Glenn Wichman |
2128c7dc8a40
Import Super-Rogue 9.0 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff
changeset
|
12 * All rights reserved. |
2128c7dc8a40
Import Super-Rogue 9.0 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff
changeset
|
13 * |
2128c7dc8a40
Import Super-Rogue 9.0 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff
changeset
|
14 * See the file LICENSE.TXT for full copyright and licensing information. |
2128c7dc8a40
Import Super-Rogue 9.0 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff
changeset
|
15 */ |
2128c7dc8a40
Import Super-Rogue 9.0 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff
changeset
|
16 |
2128c7dc8a40
Import Super-Rogue 9.0 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff
changeset
|
17 #include <stdlib.h> |
2128c7dc8a40
Import Super-Rogue 9.0 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff
changeset
|
18 #include "rogue.h" |
2128c7dc8a40
Import Super-Rogue 9.0 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff
changeset
|
19 #include "rogue.ext" |
2128c7dc8a40
Import Super-Rogue 9.0 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff
changeset
|
20 |
2128c7dc8a40
Import Super-Rogue 9.0 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff
changeset
|
21 /* |
2128c7dc8a40
Import Super-Rogue 9.0 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff
changeset
|
22 * detach: |
2128c7dc8a40
Import Super-Rogue 9.0 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff
changeset
|
23 * Takes an item out of whatever linked list it might be in |
2128c7dc8a40
Import Super-Rogue 9.0 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff
changeset
|
24 */ |
2128c7dc8a40
Import Super-Rogue 9.0 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff
changeset
|
25 |
2128c7dc8a40
Import Super-Rogue 9.0 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff
changeset
|
26 _detach(list, item) |
2128c7dc8a40
Import Super-Rogue 9.0 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff
changeset
|
27 struct linked_list **list, *item; |
2128c7dc8a40
Import Super-Rogue 9.0 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff
changeset
|
28 { |
2128c7dc8a40
Import Super-Rogue 9.0 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff
changeset
|
29 if (*list == item) |
2128c7dc8a40
Import Super-Rogue 9.0 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff
changeset
|
30 *list = next(item); |
2128c7dc8a40
Import Super-Rogue 9.0 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff
changeset
|
31 if (prev(item) != NULL) |
2128c7dc8a40
Import Super-Rogue 9.0 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff
changeset
|
32 item->l_prev->l_next = next(item); |
2128c7dc8a40
Import Super-Rogue 9.0 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff
changeset
|
33 if (next(item) != NULL) |
2128c7dc8a40
Import Super-Rogue 9.0 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff
changeset
|
34 item->l_next->l_prev = prev(item); |
2128c7dc8a40
Import Super-Rogue 9.0 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff
changeset
|
35 item->l_next = NULL; |
2128c7dc8a40
Import Super-Rogue 9.0 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff
changeset
|
36 item->l_prev = NULL; |
2128c7dc8a40
Import Super-Rogue 9.0 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff
changeset
|
37 } |
2128c7dc8a40
Import Super-Rogue 9.0 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff
changeset
|
38 |
2128c7dc8a40
Import Super-Rogue 9.0 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff
changeset
|
39 /* |
2128c7dc8a40
Import Super-Rogue 9.0 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff
changeset
|
40 * _attach: add an item to the head of a list |
2128c7dc8a40
Import Super-Rogue 9.0 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff
changeset
|
41 */ |
2128c7dc8a40
Import Super-Rogue 9.0 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff
changeset
|
42 _attach(list, item) |
2128c7dc8a40
Import Super-Rogue 9.0 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff
changeset
|
43 struct linked_list **list, *item; |
2128c7dc8a40
Import Super-Rogue 9.0 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff
changeset
|
44 { |
2128c7dc8a40
Import Super-Rogue 9.0 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff
changeset
|
45 if (*list != NULL) { |
2128c7dc8a40
Import Super-Rogue 9.0 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff
changeset
|
46 item->l_next = *list; |
2128c7dc8a40
Import Super-Rogue 9.0 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff
changeset
|
47 (*list)->l_prev = item; |
2128c7dc8a40
Import Super-Rogue 9.0 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff
changeset
|
48 item->l_prev = NULL; |
2128c7dc8a40
Import Super-Rogue 9.0 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff
|