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annotate rogue4/daemon.c @ 201:6fb21004a981

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Fix some preprocessor directives. Include process.h in the right place, and use the correct definition of PATH_MAX, when compiling on Windows.
author John "Elwin" Edwards
date Wed, 12 Aug 2015 16:56:19 -0400
parents f2951c4e28d9
children 1b73a8641b37
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1 /*
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2 * Contains functions for dealing with things that happen in the
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3 * future.
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4 *
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5 * @(#)daemon.c 4.4 (Berkeley) 1/12/82
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6 *
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7 * Rogue: Exploring the Dungeons of Doom
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8 * Copyright (C) 1980, 1981, 1982 Michael Toy, Ken Arnold and Glenn Wichman
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9 * All rights reserved.
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10 *
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11 * See the file LICENSE.TXT for full copyright and licensing information.
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12 */
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13
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14 #include <curses.h>
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15 #include "rogue.h"
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16
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17 #define EMPTY 0
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18 #define DAEMON -1
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19
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20 #define _X_ { EMPTY }
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21
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22 struct delayed_action d_list[MAXDAEMONS] = {
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23 _X_, _X_, _X_, _X_, _X_, _X_, _X_, _X_, _X_, _X_,
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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
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27 /*
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28 * d_slot:
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29 * Find an empty slot in the daemon/fuse list
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30 */
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31 struct delayed_action *
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32 d_slot()
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33 {
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34 register int i;
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35 register struct delayed_action *dev;
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36
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37 for (i = 0, dev = d_list; i < MAXDAEMONS; i++, dev++)
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38 if (dev->d_type == EMPTY)
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39 return dev;
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40 #ifdef WIZARD
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41 debug("Ran out of fuse slots");
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42 #endif
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43 return NULL;
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44 }
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45
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46 /*
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47 * find_slot:
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48 * Find a particular slot in the table
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49 */
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50 struct delayed_action *
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51 find_slot(func)
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52 register int (*func)();
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53 {
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54 register int i;
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55 register struct delayed_action *dev;
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56
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57 for (i = 0, dev = d_list; i < MAXDAEMONS; i++, dev++)
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58 if (dev->d_type != EMPTY && func == dev->d_func)
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59 return dev;
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60 return NULL;
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61 }
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62
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63 /*
107
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64 * start_daemon:
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65 * Start a daemon, takes a function.
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66 */
107
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67 start_daemon(func, arg, type)
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68 int (*func)(), arg, type;
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69 {
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70 register struct delayed_action *dev;
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71
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72 dev = d_slot();
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73 dev->d_type = type;
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74 dev->d_func = func;
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75 dev->d_arg = arg;
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76 dev->d_time = DAEMON;
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77 }
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78
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79 /*
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80 * kill_daemon:
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81 * Remove a daemon from the list
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82 */
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83 kill_daemon(func)
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84 int (*func)();
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85 {
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86 register struct delayed_action *dev;
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87
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88 if ((dev = find_slot(func)) == NULL)
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89 return;
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90 /*
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91 * Take it out of the list
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92 */
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93 dev->d_type = EMPTY;
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94 }
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95
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96 /*
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97 * do_daemons:
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98 * Run all the daemons that are active with the current flag,
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99 * passing the argument to the function.
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100 */
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101 do_daemons(flag)
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102 register int flag;
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103 {
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104 register struct delayed_action *dev;
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105
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106 /*
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107 * Loop through the devil list
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108 */
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109 for (dev = d_list; dev <= &d_list[MAXDAEMONS-1]; dev++)
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110 /*
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111 * Executing each one, giving it the proper arguments
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112 */
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113 if (dev->d_type == flag && dev->d_time == DAEMON)
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114 (*dev->d_func)(dev->d_arg);
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115 }
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116
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117 /*
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118 * fuse:
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119 * Start a fuse to go off in a certain number of turns
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120 */
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121 fuse(func, arg, time, type)
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122 int (*func)(), arg, time, type;
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123 {
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124 register struct delayed_action *wire;
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125
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126 wire = d_slot();
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127 wire->d_type = type;
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128 wire->d_func = func;
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129 wire->d_arg = arg;
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130 wire->d_time = time;
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131 }
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132
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133 /*
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134 * lengthen:
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135 * Increase the time until a fuse goes off
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136 */
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137 lengthen(func, xtime)
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138 int (*func)();
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139 int xtime;
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140 {
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141 register struct delayed_action *wire;
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142
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143 if ((wire = find_slot(func)) == NULL)
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144 return;
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145 wire->d_time += xtime;
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146 }
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147
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148 /*
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149 * extinguish:
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150 * Put out a fuse
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151 */
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152 extinguish(func)
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153 int (*func)();
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154 {
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155 register struct delayed_action *wire;
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156
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157 if ((wire = find_slot(func)) == NULL)
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158 return;
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159 wire->d_type = EMPTY;
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160 }
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161
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162 /*
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163 * do_fuses:
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164 * Decrement counters and start needed fuses
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165 */
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166 do_fuses(flag)
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167 register int flag;
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168 {
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169 register struct delayed_action *wire;
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170
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171 /*
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172 * Step though the list
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173 */
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174 for (wire = d_list; wire <= &d_list[MAXDAEMONS-1]; wire++)
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175 {
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176 /*
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177 * Decrementing counters and starting things we want. We also need
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178 * to remove the fuse from the list once it has gone off.
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179 */
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180 if (flag == wire->d_type && wire->d_time > 0 && --wire->d_time == 0)
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181 {
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182 wire->d_type = EMPTY;
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183 (*wire->d_func)(wire->d_arg);
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184 }
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185 }
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186 }