1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
|
/*********************************************************
* Copyright (C) 2009 VMware, Inc. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as published
* by the Free Software Foundation version 2.1 and no later version.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
* or FITNESS FOR A PARTICULAR PURPOSE. See the Lesser GNU General Public
* License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
*********************************************************/
/*
* utilMem.c --
*
* misc util functions
*/
#ifdef _WIN32
#include <windows.h>
#endif
#include <stdarg.h>
#include <string.h>
#include <stdlib.h>
#include "vm_assert.h"
#include "util.h"
/*
*-----------------------------------------------------------------------------
*
* Util_SafeInternalMalloc --
* Helper function for malloc
*
* Results:
* Pointer to the dynamically allocated memory.
*
* Side effects:
* May Panic if ran out of memory.
*
*-----------------------------------------------------------------------------
*/
void *
Util_SafeInternalMalloc(int bugNumber, // IN:
size_t size, // IN:
char const *file, // IN:
int lineno) // IN:
{
void *result = malloc(size);
if (result == NULL && size != 0) {
if (bugNumber == -1) {
Panic("Unrecoverable memory allocation failure at %s:%d\n",
file, lineno);
} else {
Panic("Unrecoverable memory allocation failure at %s:%d. Bug "
"number: %d\n", file, lineno, bugNumber);
}
}
return result;
}
/*
*-----------------------------------------------------------------------------
*
* Util_SafeInternalRealloc --
* Helper function for realloc
*
* Results:
* Pointer to the dynamically allocated memory.
*
* Side effects:
* May Panic if ran out of memory.
*
*-----------------------------------------------------------------------------
*/
void *
Util_SafeInternalRealloc(int bugNumber, // IN:
void *ptr, // IN:
size_t size, // IN:
char const *file, // IN:
int lineno) // IN:
{
void *result = realloc(ptr, size);
if (result == NULL && size != 0) {
if (bugNumber == -1) {
Panic("Unrecoverable memory allocation failure at %s:%d\n",
file, lineno);
} else {
Panic("Unrecoverable memory allocation failure at %s:%d. Bug "
"number: %d\n", file, lineno, bugNumber);
}
}
return result;
}
/*
*-----------------------------------------------------------------------------
*
* Util_SafeInternalCalloc --
* Helper function for calloc
*
* Results:
* Pointer to the dynamically allocated memory.
*
* Side effects:
* May Panic if ran out of memory.
*
*-----------------------------------------------------------------------------
*/
void *
Util_SafeInternalCalloc(int bugNumber, // IN:
size_t nmemb, // IN:
size_t size, // IN:
char const *file, // IN:
int lineno) // IN:
{
void *result = calloc(nmemb, size);
if (result == NULL && nmemb != 0 && size != 0) {
if (bugNumber == -1) {
Panic("Unrecoverable memory allocation failure at %s:%d\n",
file, lineno);
} else {
Panic("Unrecoverable memory allocation failure at %s:%d. Bug "
"number: %d\n", file, lineno, bugNumber);
}
}
return result;
}
/*
*-----------------------------------------------------------------------------
*
* Util_SafeInternalStrdup --
* Helper function for strdup
*
* Results:
* Pointer to the dynamically allocated, duplicate string
*
* Side effects:
* May Panic if ran out of memory.
*
*-----------------------------------------------------------------------------
*/
char *
Util_SafeInternalStrdup(int bugNumber, // IN:
const char *s, // IN:
char const *file, // IN:
int lineno) // IN:
{
char *result;
if (s == NULL) {
return NULL;
}
#if defined(_WIN32)
if ((result = _strdup(s)) == NULL) {
#else
if ((result = strdup(s)) == NULL) {
#endif
if (bugNumber == -1) {
Panic("Unrecoverable memory allocation failure at %s:%d\n",
file, lineno);
} else {
Panic("Unrecoverable memory allocation failure at %s:%d. Bug "
"number: %d\n", file, lineno, bugNumber);
}
}
return result;
}
/*
*-----------------------------------------------------------------------------
*
* UtilSafeStrndupInternal --
*
* Returns a string consisting of first n characters of 's' if 's' has
* length >= 'n', otherwise returns a string duplicate of 's'.
*
* Results:
* Pointer to the duplicated string.
*
* Side effects:
* May Panic if ran out of memory.
*
*-----------------------------------------------------------------------------
*/
char *
Util_SafeInternalStrndup(int bugNumber, // IN:
const char *s, // IN:
size_t n, // IN:
char const *file, // IN:
int lineno) // IN:
{
size_t size;
char *copy;
const char *null;
if (s == NULL) {
return NULL;
}
null = (char *) memchr(s, '\0', n);
size = null ? null - s: n;
copy = (char *) malloc(size + 1);
if (copy == NULL) {
if (bugNumber == -1) {
Panic("Unrecoverable memory allocation failure at %s:%d\n",
file, lineno);
} else {
Panic("Unrecoverable memory allocation failure at %s:%d. Bug "
"number: %d\n", file, lineno, bugNumber);
}
}
copy[size] = '\0';
return (char *) memcpy(copy, s, size);
}
|
