src/memory.c


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#include <aplwc_internal.h>

Memory
memory_init(uint8_t *data , size_t size)
{
	Memory mem = {
		.data = data,
		.size = size,
		.offset = 0,
	};
	return mem;
}

static void *
alloc(Memory *m, size_t size, size_t align)
{
	uintptr_t ptr = (uintptr_t)m->data;
	size_t alloc_size = size;
	if((ptr % align) != 0)
		alloc_size += align - (ptr % align);

	void *p = NULL;
	if((m->size - m->offset) >= alloc_size){
		p = m->data+m->offset+alloc_size-size;
		m->offset += alloc_size;
		memset(p, 0, size);
	}
	return p;
}

Aplwc *
memory_alloc_aplwc(Memory *m)
{
	Aplwc *p = alloc(m, sizeof(Aplwc), alignof(Aplwc));
	return p;
}

void
memory_free_aplwc(Memory *m, Aplwc *p)
{
	UNUSED_PARAMETER(m);
	UNUSED_PARAMETER(p);
}