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
|
/***
This file is part of PulseAudio.
Copyright 2004-2006 Lennart Poettering
PulseAudio 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; either version 2.1 of the License,
or (at your option) any later version.
PulseAudio 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 GNU
General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with PulseAudio; if not, see <http://www.gnu.org/licenses/>.
***/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include <stdlib.h>
#include <signal.h>
#include <unistd.h>
#include <string.h>
#include <errno.h>
#include <pulse/gccmacro.h>
#include <pulsecore/core-util.h>
#include <pulsecore/macro.h>
#include "xmalloc.h"
/* Make sure not to allocate more than this much memory. */
#define MAX_ALLOC_SIZE (1024*1024*96) /* 96MB */
/* #undef malloc */
/* #undef free */
/* #undef realloc */
/* #undef strndup */
/* #undef strdup */
static void oom(void) PA_GCC_NORETURN;
/* called in case of an OOM situation. Prints an error message and
* exits */
static void oom(void) {
static const char e[] = "Not enough memory\n";
pa_loop_write(STDERR_FILENO, e, sizeof(e)-1, NULL);
#ifdef SIGQUIT
raise(SIGQUIT);
#endif
_exit(1);
}
void* pa_xmalloc(size_t size) {
void *p;
pa_assert(size > 0);
pa_assert(size < MAX_ALLOC_SIZE);
if (!(p = malloc(size)))
oom();
return p;
}
void* pa_xmalloc0(size_t size) {
void *p;
pa_assert(size > 0);
pa_assert(size < MAX_ALLOC_SIZE);
if (!(p = calloc(1, size)))
oom();
return p;
}
void *pa_xrealloc(void *ptr, size_t size) {
void *p;
pa_assert(size > 0);
pa_assert(size < MAX_ALLOC_SIZE);
if (!(p = realloc(ptr, size)))
oom();
return p;
}
void* pa_xmemdup(const void *p, size_t l) {
if (!p)
return NULL;
else {
char *r = pa_xmalloc(l);
memcpy(r, p, l);
return r;
}
}
char *pa_xstrdup(const char *s) {
if (!s)
return NULL;
return pa_xmemdup(s, strlen(s)+1);
}
char *pa_xstrndup(const char *s, size_t l) {
char *e, *r;
if (!s)
return NULL;
if ((e = memchr(s, 0, l)))
return pa_xmemdup(s, (size_t) (e-s+1));
r = pa_xmalloc(l+1);
memcpy(r, s, l);
r[l] = 0;
return r;
}
void pa_xfree(void *p) {
int saved_errno;
if (!p)
return;
saved_errno = errno;
free(p);
errno = saved_errno;
}
|
