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annotate srogue/daemon.c @ 177:7bdac632ab9d

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srogue: fix an uninitialized variable. In wanderer(), if rp == hr, the loop could test ch before its value has been set. Initializing ch to '-' now causes the loop to repeat until a location is found.
author John "Elwin" Edwards
date Tue, 04 Aug 2015 11:39:49 -0400
parents d6b7c3fb37ea
children 94a0d9dd5ce1
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36
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1 /*
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2 * Contains functions for dealing with things that
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3 * happen in the future.
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4 *
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5 * @(#)daemon.c 9.0 (rdk) 7/17/84
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6 *
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7 * Super-Rogue
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8 * Copyright (C) 1984 Robert D. Kindelberger
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9 * All rights reserved.
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10 *
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11 * Based on "Rogue: Exploring the Dungeons of Doom"
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12 * Copyright (C) 1980, 1981 Michael Toy, Ken Arnold and Glenn Wichman
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13 * All rights reserved.
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14 *
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15 * See the file LICENSE.TXT for full copyright and licensing information.
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16 */
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17
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18 #include "rogue.h"
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19 #include "rogue.ext"
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20
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21 #define EMPTY 0
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22 #define DAEMON -1
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23
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24 #define _X_ { 0, 0, 0, 0 }
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25
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26 struct delayed_action d_list[MAXDAEMONS] = {
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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
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31
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32 /*
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33 * d_insert:
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34 * Insert a function in the daemon list.
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35 */
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36 struct delayed_action *
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37 d_insert(func, arg, type, time)
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38 int arg, type, time, (*func)();
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39 {
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40 reg struct delayed_action *dev;
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41
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42 if (demoncnt < MAXDAEMONS) {
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43 dev = &d_list[demoncnt];
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44 dev->d_type = type;
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45 dev->d_time = time;
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46 dev->d_func = func;
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47 dev->d_arg = arg;
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48 demoncnt += 1;
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49 return dev;
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50 }
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51 return NULL;
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52 }
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53
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54 d_delete(wire)
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55 struct delayed_action *wire;
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56 {
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57 reg struct delayed_action *d1, *d2;
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58
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59 for (d1 = d_list; d1 < &d_list[demoncnt]; d1++) {
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60 if (wire == d1) {
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61 for (d2 = d1 + 1; d2 < &d_list[demoncnt]; d2++)
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62 *d1++ = *d2;
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63 demoncnt -= 1;
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64 d1 = &d_list[demoncnt];
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65 d1->d_type = EMPTY;
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66 d1->d_func = EMPTY;
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67 return;
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68 }
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69 }
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70 }
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71 /*
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72 * find_slot:
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73 * Find a particular slot in the table
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74 */
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75 struct delayed_action *
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76 find_slot(func)
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77 int (*func)();
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78 {
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79 reg struct delayed_action *dev;
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80
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81 for (dev = d_list; dev < &d_list[demoncnt]; dev++)
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82 if (dev->d_type != EMPTY && func == dev->d_func)
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83 return dev;
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84 return NULL;
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85 }
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86
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87 /*
107
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88 * start_daemon:
36
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89 * Start a daemon, takes a function.
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90 */
107
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91 start_daemon(func, arg, type)
36
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92 int arg, type, (*func)();
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93 {
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94 d_insert(func, arg, type, DAEMON);
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95 }
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96
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97 /*
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98 * do_daemons:
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99 * Run all the daemons that are active with the current
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100 * flag, passing the argument to the function.
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101 */
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102 do_daemons(flag)
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103 int flag;
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104 {
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105 reg struct delayed_action *dev;
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