Esempi in C++ (Cpp) per cslab_free_mapping

Esempio n. 1

File: mem_man.c Progetto: nks5295/Composite

/* Make a child mapping */
static struct mapping *
mapping_crt(struct mapping *p, struct frame *f, spdid_t dest, vaddr_t to, int flags)
{
	struct comp_vas *cv = cvas_lookup(dest);
	struct mapping *m = NULL;
	long idx = to >> PAGE_SHIFT;

	assert(!p || p->f == f);
	assert(dest && to);

	/* no vas structure for this spd yet... */
	if (!cv) {
		cv = cvas_alloc(dest);
		if (!cv) goto done;
		assert(cv == cvas_lookup(dest));
	}
	assert(cv->pages);
	if (cvect_lookup(cv->pages, idx)) goto collision;

	cvas_ref(cv);
	m = cslab_alloc_mapping();
	if (!m) goto collision;

	if (cos_mmap_cntl(COS_MMAP_GRANT, flags, dest, to, frame_index(f))) {
		printc("mem_man: could not grant at %x:%d\n", dest, (int)to);
		goto no_mapping;
	}
	mapping_init(m, dest, to, p, f);
	assert(!p || frame_nrefs(f) > 0);
	frame_ref(f);
	assert(frame_nrefs(f) > 0);
	if (cvect_add(cv->pages, m, idx)) BUG();
done:
	return m;
no_mapping:
	cslab_free_mapping(m);
collision:
	cvas_deref(cv);
	m = NULL;
	goto done;
}

Esempio n. 2

File: mem_man.c Progetto: HelloCompositeKevin/test_merge_conflict

static void
__mapping_destroy(struct mapping *m)
{
	struct comp_vas *cv;
	int idx;

	assert(m);
	assert(EMPTY_LIST(m, _s, s_));
	assert(m->p == NULL && m->c == NULL);
	cv = cvas_lookup(m->spdid);

	assert(cv && cv->pages);
	assert(m == cvect_lookup(cv->pages, m->addr >> PAGE_SHIFT));
	cvect_del(cv->pages, m->addr >> PAGE_SHIFT);
	cvas_deref(cv);

	idx = cos_mmap_cntl(COS_MMAP_REVOKE, 0, m->spdid, m->addr, 0);
	assert(idx == frame_index(m->f));
	frame_deref(m->f);
	cslab_free_mapping(m);
}