aboutsummaryrefslogtreecommitdiff
path: root/MemoryManager.c
blob: 53f906e862adacad5e902040452e7a13b2133e6a (plain) (blame)
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
#include "MemoryManager.h"
#include "Types.h"
#include <stdlib.h>
#include <string.h>

Result
std_alloc(MemoryManager mm, void **ptr, usize size) {
    if (NULL == ptr)
        return R_NullArgument;

    *ptr = malloc(size);
    return (*ptr == NULL) ? R_Err : R_Ok;
}

Result
std_realloc(MemoryManager mm, void **ptr, usize size) {
    if (NULL == ptr)
        return R_NullArgument;

    *ptr = realloc(*ptr, size);
    return (*ptr == NULL) ? R_Err : R_Ok;
}

Result
std_free(MemoryManager mm, void **ptr) {
    if (NULL == ptr)
        return R_NullArgument;

    free(*ptr);
    *ptr = NULL;
    return R_Ok;
}

Result
std_destroy(MemoryManager *mm) {
    return R_Unavailable;
}

MemoryManager
M_std() {
    return (MemoryManager){
        .alloc = &std_alloc,
        .realloc = &std_realloc,
        .free = &std_free,
        .destroy = &std_destroy,
    };
}

char*
M_strdup(MemoryManager mm, const char* str) {
    if (NULL == str)
        return NULL;

    char* newstr = NULL;
    if (R_Ok != mm.alloc(mm, (void**)&newstr, strlen(str) + 1) ||
        NULL == newstr)
    {
        return NULL;
    }

    strcpy(newstr, str);
    return newstr;
}