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annotate srogue/list.c @ 165:2d94c32a709e

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arogue7: comment out a problematic message. This line causes a segfault on x64. I suspect one of the char* arguments to msg() is being corrupted. But gdb doesn't make it easy to debug variadic functions, and the crash doesn't occur when running under valgrind. So the message is being removed until I can discover the root of the problem.
author John "Elwin" Edwards
date Fri, 26 Jun 2015 11:32:37 -0400
parents d6b7c3fb37ea
children 94a0d9dd5ce1
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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36
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1 /*
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2 * Functions for dealing with linked lists of goodies
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3 *
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4 * @(#)list.c 9.0 (rdk) 7/17/84
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5 *
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6 * Super-Rogue
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7 * Copyright (C) 1984 Robert D. Kindelberger
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8 * All rights reserved.
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9 *
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10 * Based on "Rogue: Exploring the Dungeons of Doom"
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11 * Copyright (C) 1980, 1981 Michael Toy, Ken Arnold and Glenn Wichman
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12 * All rights reserved.
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13 *
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14 * See the file LICENSE.TXT for full copyright and licensing information.
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15 */
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16
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17 #include <stdlib.h>
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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 /*
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22 * detach:
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23 * Takes an item out of whatever linked list it might be in
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24 */
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25
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26 _detach(list, item)
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27 struct linked_list **list, *item;
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28 {
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29 if (*list == item)
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30 *list = next(item);
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31 if (prev(item) != NULL)
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32 item->l_prev->l_next = next(item);
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33 if (next(item) != NULL)
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34 item->l_next->l_prev = prev(item);
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35 item->l_next = NULL;
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36 item->l_prev = NULL;
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37 }
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38
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39 /*
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40 * _attach: add an item to the head of a list
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41 */
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42 _attach(list, item)
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43 struct linked_list **list, *item;
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44 {
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45 if (*list != NULL) {
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46 item->l_next = *list;
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47 (*list)->l_prev = item;
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48 item->l_prev = NULL;
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49 }
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50 else {
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51 item->l_next = NULL;
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52 item->l_prev = NULL;
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53 }
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54 *list = item;
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55 }
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56
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57 /*
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58 * _free_list: Throw the whole blamed thing away
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59 */
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60 _free_list(ptr)
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61 struct linked_list **ptr;
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62 {
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63 register struct linked_list *item;
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64
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65 while (*ptr != NULL) {
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66 item = *ptr;
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67 *ptr = next(item);
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68 discard(item);
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69 }
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70 }
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71
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72 /*
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73 * discard: free up an item
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74 */
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75 discard(item)
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76 struct linked_list *item;
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77 {
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78 total -= 2;
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79 FREE(item->l_data);
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80 FREE(item);
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81 }
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82
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83 /*
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84 * new_item: get a new item with a specified size
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85 */
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86 struct linked_list *
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87 new_item(size)
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88 int size;
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89 {
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90 register struct linked_list *item;
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91
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92 item = (struct linked_list *) new(sizeof *item);
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93 item->l_data = new(size);
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94 item->l_next = item->l_prev = NULL;
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95 return item;
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96 }
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97
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98 char *
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99 new(size)
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100 int size;
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101 {
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102 register char *space = ALLOC(size);
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103
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104 if (space == NULL) {
120
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105 sprintf(prbuf,"Rogue ran out of memory (%d).", md_memused());
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106 fatal(prbuf);
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107 }