blob: 6b4d525626aab7eba7c652af6e95e527aae318d7 (
plain)
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
|
/** @file malloc_wrappers.c
*
* @brief locked malloc functions.
*
* @author Hanjie Wu (hanjiew)
* @bug No functional bugs
*/
#include <malloc.h>
#include <malloc_internal.h>
#include <stddef.h>
#include <sync.h>
mutex_t malloc_lock = MUTEX_INIT;
/* safe versions of malloc functions */
void* malloc(size_t size) {
mutex_lock(&malloc_lock);
void* mem = _malloc(size);
mutex_unlock(&malloc_lock);
return mem;
}
void* memalign(size_t alignment, size_t size) {
mutex_lock(&malloc_lock);
void* mem = _memalign(alignment, size);
mutex_unlock(&malloc_lock);
return mem;
}
void* calloc(size_t nelt, size_t eltsize) {
mutex_lock(&malloc_lock);
void* mem = _calloc(nelt, eltsize);
mutex_unlock(&malloc_lock);
return mem;
}
void* realloc(void* buf, size_t new_size) {
mutex_lock(&malloc_lock);
void* mem = _realloc(buf, new_size);
mutex_unlock(&malloc_lock);
return mem;
}
void free(void* buf) {
mutex_lock(&malloc_lock);
_free(buf);
mutex_unlock(&malloc_lock);
}
void* smalloc(size_t size) {
mutex_lock(&malloc_lock);
void* mem = _smalloc(size);
mutex_unlock(&malloc_lock);
return mem;
}
void* smemalign(size_t alignment, size_t size) {
mutex_lock(&malloc_lock);
void* mem = _smemalign(alignment, size);
mutex_unlock(&malloc_lock);
return mem;
}
void sfree(void* buf, size_t size) {
mutex_lock(&malloc_lock);
_sfree(buf, size);
mutex_unlock(&malloc_lock);
}
|
