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annotate xrogue/list.c @ 164:49af2fd0bb0c

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Move some autotools files to where configure can find them. rogue5 uses config.guess and config.sub to find the canonical system names. The configure script expects them to be in the same directory as install-sh. So they have been relocated to the top level. This is a quick and dirty fix. The eventual plan is to relocate them to /dev/null. I also suspect they should be used to set HOST, not TARGET. Rogue is not a cross-compiler.
author John "Elwin" Edwards
date Tue, 16 Jun 2015 11:44:49 -0400
parents ce0cf824c192
children f54901b9c39b
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
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1 /*
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2 list.c - Functions for dealing with linked lists of goodies
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3
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4 XRogue: Expeditions into the Dungeons of Doom
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5 Copyright (C) 1991 Robert Pietkivitch
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6 All rights reserved.
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7
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8 Based on "Advanced Rogue"
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9 Copyright (C) 1984, 1985 Michael Morgan, Ken Dalka and AT&T
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10 All rights reserved.
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11
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12 Based on "Rogue: Exploring the Dungeons of Doom"
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13 Copyright (C) 1980, 1981 Michael Toy, Ken Arnold and Glenn Wichman
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14 All rights reserved.
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15
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16 See the file LICENSE.TXT for full copyright and licensing information.
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17 */
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18
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19 #include <stdlib.h>
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20 #include <string.h>
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21 #include <curses.h>
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22 #include "rogue.h"
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23
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24 /*
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25 * detach:
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26 * Takes an item out of whatever linked list it might be in
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27 */
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28
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29 _detach(list, item)
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30 register struct linked_list **list, *item;
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31 {
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32 if (*list == item)
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33 *list = next(item);
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34 if (prev(item) != NULL) item->l_prev->l_next = next(item);
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35 if (next(item) != NULL) item->l_next->l_prev = prev(item);
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36 item->l_next = NULL;
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37 item->l_prev = NULL;
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38 }
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39
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40 /*
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41 * _attach:
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42 * add an item to the head of a list
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43 */
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44
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45 _attach(list, item)
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46 register struct linked_list **list, *item;
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47 {
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48 if (*list != NULL)
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49 {
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50 item->l_next = *list;
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51 (*list)->l_prev = item;
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52 item->l_prev = NULL;
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53 }
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54 else
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55 {
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56 item->l_next = NULL;
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57 item->l_prev = NULL;
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58 }
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59
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60 *list = item;
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61 }
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62
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63 /*
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64 * o_free_list:
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65 * Throw the whole object list away
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66 */
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67
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68 _o_free_list(ptr)
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69 register struct linked_list **ptr;
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70 {
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71 register struct linked_list *item;
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72
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73 while (*ptr != NULL)
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74 {
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75 item = *ptr;
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76 *ptr = next(item);
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77 o_discard(item);
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78 }
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79 }
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80
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81 /*
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82 * o_discard:
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83 * free up an item and its object(and maybe contents)
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84 */
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85
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86 o_discard(item)
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87 register struct linked_list *item;
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88 {
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89 register struct object *obj;
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90
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91 obj = OBJPTR(item);
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92 if (obj->contents != NULL)
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93 o_free_list(obj->contents);
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94 total -= 2;
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95 FREE(obj);
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96 FREE(item);
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97 }
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98
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99 /*
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100 r_free_fire_list
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101 Throw the whole list of fire monsters away. But don't
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102 discard the item (monster) itself as that belong to mlist.
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103 */
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104
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105 _r_free_fire_list(ptr)
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106 register struct linked_list **ptr;
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107 {
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108 register struct linked_list *item;
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109
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110 while (*ptr != NULL)
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111 {
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112 item = *ptr;
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113 *ptr = next(item);
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114 free(item);
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115 }
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116 }
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117 /*
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118 * r_free_list:
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119 * Throw the whole list of room exits away
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120 */
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121
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122 _r_free_list(ptr)
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123 register struct linked_list **ptr;
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124 {
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125 register struct linked_list *item;
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126
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127 while (*ptr != NULL)
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128 {
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129 item = *ptr;
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130 *ptr = next(item);
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131 r_discard(item);
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132 }
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133 }
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134
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135 /*
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136 * r_discard:
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137 * free up an item and its room
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138 */
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139
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140 r_discard(item)
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141 register struct linked_list *item;
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142 {
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143 total -= 2;
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144 FREE(DOORPTR(item));
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145 FREE(item);
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146 }
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147
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148 /*
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149 * t_free_list:
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150 * Throw the whole thing list away
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151 */
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152
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153 _t_free_list(ptr)
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154 register struct linked_list **ptr;
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155 {
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156 register struct linked_list *item;
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157
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158 while (*ptr != NULL)
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159 {
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160 item = *ptr;
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161 *ptr = next(item);
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162 t_discard(item);
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163 }
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164 }
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165
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166 /*
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167 * t_discard:
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168 * free up an item and its thing
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169 */
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170
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171 t_discard(item)
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172 register struct linked_list *item;
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173 {
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174 register struct thing *tp;
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175
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176 total -= 2;
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177 tp = THINGPTR(item);
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178 if (tp->t_name != NULL) FREE(tp->t_name);
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179 if (tp->t_pack != NULL)
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180 o_free_list(tp->t_pack);
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181 FREE(tp);
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182 FREE(item);
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183 }
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184
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185 /*
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186 * destroy_item:
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187 * get rid of an item structure -- don't worry about contents
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188 */
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189
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190 destroy_item(item)
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191 register struct linked_list *item;
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192 {
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193 total--;
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194 FREE(item);
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195 }
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196
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197 /*
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198 * new_item
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199 * get a new item with a specified size
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200 */
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201
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202 struct linked_list *
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203 new_item(size)
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204 int size;
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205 {
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206 register struct linked_list *item;
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207
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208 if ((item = (struct linked_list *) new(sizeof *item)) == NULL)
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209 msg("Ran out of memory for header after %d items", total);
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210 if ((item->l_data = new(size)) == NULL)
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211 msg("Ran out of memory for data after %d items", total);
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212 item->l_next = item->l_prev = NULL;
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213 memset(item->l_data,0,size);
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214 return item;
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215 }
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216
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217 /*
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218 * creat_item:
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219 * Create just an item structure -- don't make any contents
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220 */
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221
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222 struct linked_list *
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223 creat_item()
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224 {
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225 register struct linked_list *item;
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226
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227 if ((item = (struct linked_list *) new(sizeof *item)) == NULL)
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228 msg("Ran out of memory for header after %d items", total);
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229 item->l_next = item->l_prev = NULL;
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230 return item;
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231 }
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232
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233 char *
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234 new(size)
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235 int size;
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236 {
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237 register char *space = ALLOC(size);
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238
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239 if (space == NULL) {
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240 sprintf(prbuf,"Rogue ran out of memory (used = %d, wanted = %d).",
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241 md_memused(), size);
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242 fatal(prbuf);
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243 }
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244 total++;
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245 return space;
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246 }
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247