void caml_init_domains(uintnat minor_size) {
int i;
uintnat size;
void* heaps_base;
/* sanity check configuration */
if (caml_mem_round_up_pages(1 << Minor_heap_align_bits) != (1 << Minor_heap_align_bits))
caml_fatal_error("Minor_heap_align_bits misconfigured for this platform");
/* reserve memory space for minor heaps */
size = (uintnat)1 << (Minor_heap_sel_bits + Minor_heap_align_bits);
/* To ensure Is_foreign gives no false positives, we reserve twice
the address space needed and only use the first half */
heaps_base = caml_mem_map(size*2, size*2, 1 /* reserve_only */);
if (!heaps_base) caml_raise_out_of_memory();
minor_heaps_base = (uintnat) heaps_base;
caml_plat_mutex_init(&all_domains_lock);
for (i = 0; i < Max_domains; i++) {
struct dom_internal* dom = &all_domains[i];
caml_plat_mutex_init(&dom->roots_lock);
dom->running = 0;
dom->state.id = i;
dom->tls_area = minor_heaps_base +
(uintnat)(1 << Minor_heap_align_bits) * (uintnat)i;
dom->tls_area_end =
caml_mem_round_up_pages(dom->tls_area +
sizeof(struct caml_domain_state));
dom->minor_heap_area = /* skip guard page */
caml_mem_round_up_pages(dom->tls_area_end + 1);
dom->minor_heap_area_end =
dom->minor_heap_area + (1 << Minor_heap_align_bits);
}
create_domain(minor_size, 1);
if (!domain_self) caml_fatal_error("Failed to create main domain");
caml_init_global_roots();
caml_init_signal_handling();
}
struct caml_heap_state* caml_init_shared_heap() {
int i;
struct caml_heap_state* heap;
if (caml_domain_self()->is_main) {
caml_plat_mutex_init(&pool_freelist.lock);
}
Assert(NOT_MARKABLE == Promotedhd_hd(0));
heap = caml_stat_alloc(sizeof(struct caml_heap_state));
heap->free_pools = 0;
heap->num_free_pools = 0;
for (i = 0; i<NUM_SIZECLASSES; i++) {
heap->avail_pools[i] = heap->full_pools[i] =
heap->unswept_avail_pools[i] = heap->unswept_full_pools[i] = 0;
}
heap->next_to_sweep = 0;
heap->swept_large = 0;
heap->unswept_large = 0;
heap->owner = caml_domain_self();
heap->pools_allocated = 0;
heap->large_bytes_allocated = 0;
return heap;
}
void caml_init_major_gc() {
caml_domain_state->mark_stack = caml_stat_alloc(MARK_STACK_SIZE * sizeof(value));
caml_domain_state->mark_stack_count = 0;
caml_plat_mutex_init(&pools_to_rescan_lock);
}
void caml_init_global_roots()
{
caml_plat_mutex_init(&roots_mutex);
}
