static extent_node_t *
base_chunk_alloc(tsdn_t *tsdn, size_t minsize)
{
extent_node_t *node;
size_t csize, nsize;
void *addr;
malloc_mutex_assert_owner(tsdn, &base_mtx);
assert(minsize != 0);
node = base_node_try_alloc(tsdn);
/* Allocate enough space to also carve a node out if necessary. */
nsize = (node == NULL) ? CACHELINE_CEILING(sizeof(extent_node_t)) : 0;
csize = CHUNK_CEILING(minsize + nsize);
addr = chunk_alloc_base(csize);
if (addr == NULL) {
if (node != NULL)
base_node_dalloc(tsdn, node);
return (NULL);
}
base_mapped += csize;
if (node == NULL) {
node = (extent_node_t *)addr;
addr = (void *)((uintptr_t)addr + nsize);
csize -= nsize;
if (config_stats) {
base_allocated += nsize;
base_resident += PAGE_CEILING(nsize);
}
}
base_extent_node_init(node, addr, csize);
return (node);
}
static bool
base_pages_alloc(size_t minsize)
{
size_t csize;
assert(minsize != 0);
csize = CHUNK_CEILING(minsize);
base_pages = chunk_alloc_base(csize);
if (base_pages == NULL)
return (true);
base_next_addr = base_pages;
base_past_addr = (void *)((uintptr_t)base_pages + csize);
return (false);
}