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
|
#include <stddef.h>
#include <stdlib.h>
#include <string.h>
#ifdef WIN32
#include "ndpi_win32.h" /* For __sync_fetch_and_add */
#endif
/* ****************************************** */
static void *(*_ndpi_malloc)(size_t size);
static void (*_ndpi_free)(void *ptr);
static volatile long int ndpi_tot_allocated_memory;
/* ****************************************** */
void set_ndpi_malloc(void *(*__ndpi_malloc)(size_t size)) {
_ndpi_malloc = __ndpi_malloc;
}
void set_ndpi_free(void (*__ndpi_free)(void *ptr)) {
_ndpi_free = __ndpi_free;
}
/* ****************************************** */
u_int32_t ndpi_get_tot_allocated_memory() {
return(__sync_fetch_and_add(&ndpi_tot_allocated_memory, 0));
}
/* ****************************************** */
void *ndpi_malloc(size_t size) {
__sync_fetch_and_add(&ndpi_tot_allocated_memory, size);
return(_ndpi_malloc ? _ndpi_malloc(size) : malloc(size));
}
/* ****************************************** */
void *ndpi_calloc(unsigned long count, size_t size) {
size_t len = count * size;
void *p = ndpi_malloc(len);
if(p) {
memset(p, 0, len);
__sync_fetch_and_add(&ndpi_tot_allocated_memory, size);
}
return(p);
}
/* ****************************************** */
void ndpi_free(void *ptr) {
if(_ndpi_free) {
if(ptr)
_ndpi_free(ptr);
} else {
if(ptr)
free(ptr);
}
}
/* ****************************************** */
void *ndpi_realloc(void *ptr, size_t old_size, size_t new_size) {
void *ret = ndpi_malloc(new_size);
if(!ret)
return(ret);
else {
if(ptr != NULL) {
memcpy(ret, ptr, (old_size < new_size ? old_size : new_size));
ndpi_free(ptr);
}
return(ret);
}
}
/* ****************************************** */
char *ndpi_strdup(const char *s) {
if(s == NULL ){
return NULL;
}
int len = strlen(s);
char *m = ndpi_malloc(len + 1);
if(m) {
memcpy(m, s, len);
m[len] = '\0';
}
return(m);
}
|