/*

** allocf.c - default memory allocation function

**

** See Copyright Notice in mruby.h

*/

#include <stdlib.h>

#include <mruby.h>

/* This function serves as the default memory allocation function and accepts two arguments:

*

* - `p`: The previous pointer to the memory region. For memory allocation, this parameter is NULL.

* - `size`: The new size of the memory region to be returned. If size is 0, the memory region will be freed.

*

* All memory allocation from the inside of mruby uses this function.

*

* If you want to use your own memory allocator, you have two options:

*

* - provide your own version of malloc() / realloc() / free()

*

* - redefine mrb_basic_alloc_func() in your application.

*

* See doc/guides/memory.md for detail.

*/

void*

mrb_basic_alloc_func(void *p, size_t size)

{

if (size == 0) {

/* `free(NULL)` should be no-op */

free(p);

return NULL;

}

else {

/* `realloc(NULL, size)` should work as `malloc(size)` */

return realloc(p, size);

}

}