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annotate arogue5/daemon.c @ 162:600873555ec0

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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 a5433ba4cabf
children 56e748983fa8
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 /*
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2 * Contains functions for dealing with things that happen in the future.
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3 *
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4 * Advanced Rogue
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5 * Copyright (C) 1984, 1985 Michael Morgan, Ken Dalka and AT&T
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6 * All rights reserved.
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7 *
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8 * Based on "Rogue: Exploring the Dungeons of Doom"
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9 * Copyright (C) 1980, 1981 Michael Toy, Ken Arnold and Glenn Wichman
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10 * All rights reserved.
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11 *
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12 * See the file LICENSE.TXT for full copyright and licensing information.
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13 */
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14
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15 #include "curses.h"
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16 #include "rogue.h"
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17
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18 #define EMPTY 0
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19 #define DAEMON -1
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20
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21 #define _X_ { EMPTY }
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22
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23 struct delayed_action d_list[MAXDAEMONS] = {
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24 _X_, _X_, _X_, _X_, _X_, _X_, _X_, _X_, _X_, _X_
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25 };
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26 struct delayed_action f_list[MAXFUSES] = {
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27 _X_, _X_, _X_, _X_, _X_, _X_, _X_, _X_, _X_, _X_,
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28 _X_, _X_, _X_, _X_, _X_, _X_, _X_, _X_, _X_, _X_
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29 };
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30 int demoncnt = 0; /* number of active daemons */
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31 int fusecnt = 0;
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32
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33
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34 /*
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35 * d_slot:
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36 * Find an empty slot in the daemon list
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37 */
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38 struct delayed_action *
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39 d_slot()
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40 {
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41 reg int i;
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42 reg struct delayed_action *dev;
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43
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44 for (i = 0, dev = d_list; i < MAXDAEMONS; i++, dev++)
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45 if (dev->d_type == EMPTY)
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46 return dev;
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47 return NULL;
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48 }
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49
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50 /*
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51 * f_slot:
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52 * Find an empty slot in the fuses list
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53 */
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54 struct delayed_action *
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55 f_slot()
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56 {
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57 reg int i;
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58 reg struct delayed_action *dev;
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59
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60 for (i = 0, dev = f_list; i < MAXFUSES; i++, dev++)
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61 if (dev->d_type == EMPTY)
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62 return dev;
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63 return NULL;
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64 }
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65
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66
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67
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68 /*
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69 * find_slot:
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70 * Find a particular slot in the table
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71 */
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72 struct delayed_action *
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73 find_slot(func)
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74 reg int (*func)();
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75 {
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76 reg int i;
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77 reg struct delayed_action *dev;
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78
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79 for (i = 0, dev = f_list; i < MAXFUSES; i++, dev++)
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80 if (dev->d_type != EMPTY && func == dev->d_func)
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81 return dev;
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82 return NULL;
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83 }
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84
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85
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86 /*
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87 * start_daemon:
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88 * Start a daemon, takes a function.
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89 */
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90 start_daemon(int (*func)(), void *arg, int type)
63
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91 {
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92 reg struct delayed_action *dev;
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93
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94 dev = d_slot();
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95 if (dev != NULL) {
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96 dev->d_type = type;
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97 dev->d_func = func;
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98 dev->d_arg = arg;
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99 dev->d_time = DAEMON;
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100 demoncnt += 1; /* update count */
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101 }
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102 }
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103
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104
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