/*
* heap_init -- initializes the heap
*
* If successful function returns zero. Otherwise an error number is returned.
*/
int
heap_init(PMEMobjpool *pop)
{
if (pop->heap_size < HEAP_MIN_SIZE)
return EINVAL;
struct heap_layout *layout = heap_get_layout(pop);
heap_write_header(&layout->header, pop->heap_size);
pmem_msync(&layout->header, sizeof (struct heap_header));
int zones = heap_max_zone(pop->heap_size);
for (int i = 0; i < zones; ++i) {
memset(&layout->zones[i].header, 0,
sizeof (layout->zones[i].header));
memset(&layout->zones[i].chunk_headers, 0,
sizeof (layout->zones[i].chunk_headers));
pmem_msync(&layout->zones[i].header,
sizeof (layout->zones[i].header));
pmem_msync(&layout->zones[i].chunk_headers,
sizeof (layout->zones[i].chunk_headers));
}
return 0;
}
/*
* heap_init -- initializes the heap
*
* If successful function returns zero. Otherwise an error number is returned.
*/
int
heap_init(void *heap_start, uint64_t heap_size, struct pmem_ops *p_ops)
{
if (heap_size < HEAP_MIN_SIZE)
return EINVAL;
VALGRIND_DO_MAKE_MEM_UNDEFINED(heap_start, heap_size);
struct heap_layout *layout = heap_start;
heap_write_header(&layout->header, heap_size);
pmemops_persist(p_ops, &layout->header, sizeof(struct heap_header));
unsigned zones = heap_max_zone(heap_size);
for (unsigned i = 0; i < zones; ++i) {
pmemops_memset_persist(p_ops,
&ZID_TO_ZONE(layout, i)->header,
0, sizeof(struct zone_header));
pmemops_memset_persist(p_ops,
&ZID_TO_ZONE(layout, i)->chunk_headers,
0, sizeof(struct chunk_header));
/* only explicitly allocated chunks should be accessible */
VALGRIND_DO_MAKE_MEM_NOACCESS(
&ZID_TO_ZONE(layout, i)->chunk_headers,
sizeof(struct chunk_header));
}
return 0;
}
/*
* heap_init -- initializes the heap
*
* If successful function returns zero. Otherwise an error number is returned.
*/
int
heap_init(PMEMobjpool *pop)
{
if (pop->heap_size < HEAP_MIN_SIZE)
return EINVAL;
struct heap_layout *layout = heap_get_layout(pop);
heap_write_header(&layout->header, pop->heap_size);
pmem_msync(&layout->header, sizeof (struct heap_header));
return 0;
}
