annotate xrogue/daemon.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 cadff8f047a1
children f54901b9c39b
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
133
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
1 /*
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
2 daemon.c - functions for dealing with things that happen in the future
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
3
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
4 XRogue: Expeditions into the Dungeons of Doom
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
5 Copyright (C) 1991 Robert Pietkivitch
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
6 All rights reserved.
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
7
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
8 Based on "Advanced Rogue"
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
9 Copyright (C) 1984, 1985 Michael Morgan, Ken Dalka and AT&T
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
10 All rights reserved.
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
11
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
12 Based on "Rogue: Exploring the Dungeons of Doom"
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
13 Copyright (C) 1980, 1981 Michael Toy, Ken Arnold and Glenn Wichman
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
14 All rights reserved.
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
15
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
16 See the file LICENSE.TXT for full copyright and licensing information.
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
17 */
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
18
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
19 #include <curses.h>
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
20 #include "rogue.h"
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
21
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
22 #define EMPTY 0
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
23 #define DAEMON -1
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
24
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
25 #define _X_ { EMPTY }
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
26
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
27 struct delayed_action d_list[MAXDAEMONS] = {
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
28 _X_, _X_, _X_, _X_, _X_, _X_, _X_, _X_, _X_, _X_
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
29 };
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
30 struct delayed_action f_list[MAXFUSES] = {
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
31 _X_, _X_, _X_, _X_, _X_, _X_, _X_, _X_, _X_, _X_,
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
32 _X_, _X_, _X_, _X_, _X_, _X_, _X_, _X_, _X_, _X_
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
33 };
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
34
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
35 int demoncnt = 0; /* number of active daemons */
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
36 int fusecnt = 0;
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
37
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
38
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
39 /*
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
40 * d_slot:
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
41 * Find an empty slot in the daemon list
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
42 */
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
43 struct delayed_action *
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
44 d_slot()
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
45 {
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
46 reg int i;
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
47 reg struct delayed_action *dev;
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
48
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
49 for (i = 0, dev = d_list; i < MAXDAEMONS; i++, dev++)
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
50 if (dev->d_type == EMPTY)
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
51 return dev;
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
52 return NULL;
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
53 }
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
54
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
55 /*
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
56 * f_slot:
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
57 * Find an empty slot in the fuses list
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
58 */
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
59 struct delayed_action *
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
60 f_slot()
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
61 {
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
62 reg int i;
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
63 reg struct delayed_action *dev;
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
64
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
65 for (i = 0, dev = f_list; i < MAXFUSES; i++, dev++)
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
66 if (dev->d_type == EMPTY)
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
67 return dev;
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
68 return NULL;
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
69 }
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
70
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
71 /*
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
72 * find_slot:
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
73 * Find a particular slot in the table
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
74 */
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
75
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
76 struct delayed_action *
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
77 find_slot(func)
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
78 reg int (*func)();
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
79 {
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
80 reg int i;
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
81 reg struct delayed_action *dev;
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
82
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
83 for (i = 0, dev = f_list; i < MAXFUSES; i++, dev++)
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
84 if (dev->d_type != EMPTY && func == dev->d_func)
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
85 return dev;
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
86 return NULL;
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
87 }
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
88
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
89 /*
151
cadff8f047a1 arogue7, xrogue: rename daemon() to start_daemon().
John "Elwin" Edwards
parents: 134
diff changeset
90 * start_daemon:
133
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
91 * Start a daemon, takes a function.
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
92 */
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
93
151