static void *do_xmalloc(size_t size, int gentle)
{
void *ret;
if (memory_limit_check(size, gentle))
return NULL;
ret = malloc(size);
if (!ret && !size)
ret = malloc(1);
if (!ret) {
try_to_free_routine(size);
ret = malloc(size);
if (!ret && !size)
ret = malloc(1);
if (!ret) {
if (!gentle)
die("Out of memory, malloc failed (tried to allocate %lu bytes)",
(unsigned long)size);
else {
error("Out of memory, malloc failed (tried to allocate %lu bytes)",
(unsigned long)size);
return NULL;
}
}
}
#ifdef XMALLOC_POISON
memset(ret, 0xA5, size);
#endif
return ret;
}
void *xcalloc(size_t nmemb, size_t size)
{
void *ret;
memory_limit_check(size * nmemb, 0);
ret = calloc(nmemb, size);
if (!ret && (!nmemb || !size))
ret = calloc(1, 1);
if (!ret) {
try_to_free_routine(nmemb * size);
ret = calloc(nmemb, size);
if (!ret && (!nmemb || !size))
ret = calloc(1, 1);
if (!ret)
die("Out of memory, calloc failed");
}
return ret;
}
void *xrealloc(void *ptr, size_t size)
{
void *ret;
memory_limit_check(size, 0);
ret = realloc(ptr, size);
if (!ret && !size)
ret = realloc(ptr, 1);
if (!ret) {
try_to_free_routine(size);
ret = realloc(ptr, size);
if (!ret && !size)
ret = realloc(ptr, 1);
if (!ret)
die("Out of memory, realloc failed");
}
return ret;
}
void *xcalloc(size_t nmemb, size_t size)
{
void *ret;
if (unsigned_mult_overflows(nmemb, size))
die("data too large to fit into virtual memory space");
memory_limit_check(size * nmemb, 0);
ret = calloc(nmemb, size);
if (!ret && (!nmemb || !size))
ret = calloc(1, 1);
if (!ret) {
try_to_free_routine(nmemb * size);
ret = calloc(nmemb, size);
if (!ret && (!nmemb || !size))
ret = calloc(1, 1);
if (!ret)
die("Out of memory, calloc failed");
}
return ret;
}
void *xmalloc(size_t size)
{
void *ret;
memory_limit_check(size);
ret = malloc(size);
if (!ret && !size)
ret = malloc(1);
if (!ret) {
try_to_free_routine(size);
ret = malloc(size);
if (!ret && !size)
ret = malloc(1);
if (!ret)
die("Out of memory, malloc failed (tried to allocate %lu bytes)",
(unsigned long)size);
}
#ifdef XMALLOC_POISON
memset(ret, 0xA5, size);
#endif
return ret;
}