Mercurial > hg > early-roguelike

annotate urogue/memory.c @ 263:08057be02f47

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
UltraRogue: make scorefile location configurable.
author John "Elwin" Edwards
date Wed, 15 Feb 2017 20:38:12 -0500
parents c4b12d2d1dcd
children b8919055c2fc
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
256
c495a4f288c6 Import UltraRogue from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
1 /*
c495a4f288c6 Import UltraRogue from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
2 memory.c
c495a4f288c6 Import UltraRogue from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
3
c495a4f288c6 Import UltraRogue from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
4 UltraRogue: The Ultimate Adventure in the Dungeons of Doom
c495a4f288c6 Import UltraRogue from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
5 Copyright (C) 1995 Herb Chong
c495a4f288c6 Import UltraRogue from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
6 All rights reserved.
c495a4f288c6 Import UltraRogue from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
7
c495a4f288c6 Import UltraRogue from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
8 See the file LICENSE.TXT for full copyright and licensing information.
c495a4f288c6 Import UltraRogue from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
9 */
c495a4f288c6 Import UltraRogue from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
10
c495a4f288c6 Import UltraRogue from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
11 #include <stdio.h>
c495a4f288c6 Import UltraRogue from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
12 #include <stdlib.h>
c495a4f288c6 Import UltraRogue from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
13
c495a4f288c6 Import UltraRogue from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
14 #include "dict.h"
c495a4f288c6 Import UltraRogue from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
15 #include "memory.h"
c495a4f288c6 Import UltraRogue from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
16 #include "rogue.h"
c495a4f288c6 Import UltraRogue from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
17
c495a4f288c6 Import UltraRogue from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
18 static char sccsid[] = "%W%\t%G%";
c495a4f288c6 Import UltraRogue from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
19
c495a4f288c6 Import UltraRogue from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
20 /* Debugging memory allocation code that tries to trap common memory problems
c495a4f288c6 Import UltraRogue from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
21 like overwriting storage and stepping on memory pointer chains. If code
c495a4f288c6 Import UltraRogue from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
22 doesn't use malloc, free, and realloc a lot, these routines can be left in
c495a4f288c6 Import UltraRogue from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
23 as added protection against undetected storage bugs.
c495a4f288c6 Import UltraRogue from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
24 */
c495a4f288c6 Import UltraRogue from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
25
c495a4f288c6 Import UltraRogue from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
26 /* FENCE_SIZE should be a multiple of sizeof(size_t) to prevent alignment problems.
c495a4f288c6 Import UltraRogue from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
27 The code assumes that malloc and realloc return pointers aligned at least on size_t
c495a4f288c6 Import UltraRogue from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
28 sized boundaries and that a pointer needs alignment no more strict than that of an
c495a4f288c6 Import UltraRogue from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
29 object needed to hold a size_t.
c495a4f288c6 Import UltraRogue from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
30 */
c495a4f288c6 Import UltraRogue from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
31
c495a4f288c6 Import UltraRogue from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
32 #define FENCE_SIZE (sizeof(size_t) * 1024)
c495a4f288c6 Import UltraRogue from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
33
c495a4f288c6 Import UltraRogue from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
34 static int memdebug_level = 0;
c495a4f288c6 Import UltraRogue from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
35 static DICTIONARY *allocations = NULL;
c495a4f288c6 Import UltraRogue from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
36 static FILE *trace_file = NULL;
c495a4f288c6 Import UltraRogue from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
37
c495a4f288c6 Import UltraRogue from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
38 /* set the debug level */
c495a4f288c6 Import UltraRogue from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
39 void mem_debug(const int level)
c495a4f288c6 Import UltraRogue from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
40 {
c495a4f288c6 Import UltraRogue from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
41 memdebug_level = level;
c495a4f288c6 Import UltraRogue from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
42
c495a4f288c6 Import UltraRogue from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
43 if (trace_file == NULL)
c495a4f288c6 Import UltraRogue from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
44 trace_file = fopen("trace", "w");
c495a4f288c6 Import UltraRogue from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
45
c495a4f288c6 Import UltraRogue from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
46 /* all except 0, 1, and unknown fall through */
c495a4f288c6 Import UltraRogue from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
47 switch(memdebug_level) {
c495a4f288c6 Import UltraRogue from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
48 case 2:
c495a4f288c6 Import UltraRogue from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
49 fprintf(trace_file, "+++ Memory tracking possible, ");
c495a4f288c6 Import UltraRogue from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
50 case 1:
c495a4f288c6 Import UltraRogue from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
51 fprintf(trace_file, "+++ Memory debugging enabled, ");
c495a4f288c6 Import UltraRogue from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
52 break;
c495a4f288c6 Import UltraRogue from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
53 case 0:
c495a4f288c6 Import UltraRogue from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
54 fprintf(trace_file, "+++ Memory debugging disabled, ");
c495a4f288c6 Import UltraRogue from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
55 break;
c495a4f288c6 Import UltraRogue from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
56 default:
c495a4f288c6 Import UltraRogue from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
57 fprintf(trace_file, "!!! Unknown memory debug level set, enabling level 1, ");
c495a4f288c6 Import UltraRogue from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
58 memdebug_level = 1;
c495a4f288c6 Import UltraRogue from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
59 break;
c495a4f288c6 Import UltraRogue from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
60 }
c495a4f288c6 Import UltraRogue from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
61 fprintf(trace_file, "fence size = %d\n", FENCE_SIZE);
c495a4f288c6 Import UltraRogue from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
62 }
c495a4f288c6 Import UltraRogue from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
63
c495a4f288c6 Import UltraRogue from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
64 /* set memory tracking on or off */
c495a4f288c6 Import UltraRogue from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
65 /* turning it off deletes all tracking data */
c495a4f288c6 Import UltraRogue from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
66 void mem_tracking(int flag)
c495a4f288c6 Import UltraRogue from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
67 {
c495a4f288c6 Import UltraRogue from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
68 /* do nothing if debuglevel is too low */
c495a4f288c6 Import UltraRogue from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
69 if (memdebug_level < 2)
c495a4f288c6 Import UltraRogue from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
70 return;
c495a4f288c6 Import UltraRogue from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
71
c495a4f288c6 Import UltraRogue from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
72 /* turn on tracking */
c495a4f288c6 Import UltraRogue from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
73 if (flag > 0) {
c495a4f288c6 Import UltraRogue from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
74 if (allocations != NULL) {
c495a4f288c6 Import UltraRogue from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
75 dict_destroy(allocations);
c495a4f288c6 Import UltraRogue from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
76 allocations = NULL;
c495a4f288c6 Import UltraRogue from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
77 }
c495a4f288c6 Import UltraRogue from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
78 allocations = dict_create(8, 100, 4, 20);
c495a4f288c6 Import UltraRogue from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
79 if (allocations == NULL) {
c495a4f288c6 Import UltraRogue from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
80 fprintf(trace_file, "!!! Unable to allocate tracking table!\n");
c495a4f288c6 Import UltraRogue from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
81 abort();
c495a4f288c6 Import UltraRogue from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
82 }
c495a4f288c6 Import UltraRogue from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
83 }
c495a4f288c6 Import UltraRogue from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
84 /* turn off tracking */
c495a4f288c6 Import UltraRogue from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
85 else if (allocations != NULL) {
c495a4f288c6 Import UltraRogue from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
86 dict_destroy(allocations);
c495a4f288c6 Import UltraRogue from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
87 allocations = NULL;
c495a4f288c6 Import UltraRogue from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
88 }
c495a4f288c6 Import UltraRogue from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
89 }
c495a4f288c6 Import UltraRogue from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
90
c495a4f288c6 Import UltraRogue from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
91 /* go through all pointers and see if they are OK, aborting if not */
c495a4f288c6 Import UltraRogue from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
92 /* always returns 1 if not aborting so that it can be included in */
c495a4f288c6 Import UltraRogue from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
93 /* if statement boolean expressions */