common/utils/xmalloc.c

#include "../io/log.h"
#include <stdlib.h>
#include "utils.h"
#include "xmalloc.h"

#define OLDPTR_NONE ((unsigned long long int *)0xFFFFFFFFFFFFFFFFUL)

static _Noreturn void xalloc_failed(const char *fn_name, size_t bufsize, size_t nblks, void *oldptr)
{
    if (((unsigned long long int *)oldptr) != OLDPTR_NONE)
        log_fatal("%s(ptr: %p, size: %zu): failed to allocate memory: %s", fn_name, oldptr, bufsize, get_last_error());
    else
        log_fatal("%s(size: %zu, nblks: %zu): failed to allocate memory: %s", fn_name, bufsize, nblks, get_last_error());

    exit(EXIT_FAILURE);
}

void *xmalloc(size_t size)
{
    void *ptr = malloc(size);

    if (ptr == NULL)
    {
        xalloc_failed(__func__, size, 1, OLDPTR_NONE);
        return NULL;
    }

    return ptr;
}

void *xcalloc(size_t n, size_t size)
{
    void *ptr = calloc(n, size);

    if (ptr == NULL)
    {
        xalloc_failed(__func__, size, n, OLDPTR_NONE);
        return NULL;
    }

    return ptr;
}

void *xrealloc(void *oldptr, size_t newsize)
{
    void *ptr = realloc(oldptr, newsize);

    if (ptr == NULL)
    {
        xalloc_failed(__func__, newsize, 1, oldptr);
        return NULL;
    }

    return ptr;
}
1	#include "../io/log.h"
2	#include <stdlib.h>
3	#include "utils.h"
4	#include "xmalloc.h"
5
6	#define OLDPTR_NONE ((unsigned long long int *)0xFFFFFFFFFFFFFFFFUL)
7
8	static _Noreturn void xalloc_failed(const char fn_name, size_t bufsize, size_t nblks, void oldptr)
9	{
10	if (((unsigned long long int *)oldptr) != OLDPTR_NONE)
11	log_fatal("%s(ptr: %p, size: %zu): failed to allocate memory: %s", fn_name, oldptr, bufsize, get_last_error());
12	else
13	log_fatal("%s(size: %zu, nblks: %zu): failed to allocate memory: %s", fn_name, bufsize, nblks, get_last_error());
14
15	exit(EXIT_FAILURE);
16	}
17
18	void *xmalloc(size_t size)
19	{
20	void *ptr = malloc(size);
21
22	if (ptr == NULL)
23	{
24	xalloc_failed(__func__, size, 1, OLDPTR_NONE);
25	return NULL;
26	}
27
28	return ptr;
29	}
30
31	void *xcalloc(size_t n, size_t size)
32	{
33	void *ptr = calloc(n, size);
34
35	if (ptr == NULL)
36	{
37	xalloc_failed(__func__, size, n, OLDPTR_NONE);
38	return NULL;
39	}
40
41	return ptr;
42	}
43
44	void xrealloc(void oldptr, size_t newsize)
45	{
46	void *ptr = realloc(oldptr, newsize);
47
48	if (ptr == NULL)
49	{
50	xalloc_failed(__func__, newsize, 1, oldptr);
51	return NULL;
52	}
53
54	return ptr;
55	}