static void
root_scan_phase(mrb_state *mrb)
{
size_t i, e;
if (!is_minor_gc(mrb)) {
mrb->gray_list = NULL;
mrb->atomic_gray_list = NULL;
}
mrb_gc_mark_gv(mrb);
/* mark arena */
for (i=0,e=mrb->arena_idx; i<e; i++) {
mrb_gc_mark(mrb, mrb->arena[i]);
}
/* mark class hierarchy */
mrb_gc_mark(mrb, (struct RBasic*)mrb->object_class);
/* mark top_self */
mrb_gc_mark(mrb, (struct RBasic*)mrb->top_self);
/* mark exception */
mrb_gc_mark(mrb, (struct RBasic*)mrb->exc);
mark_context(mrb, mrb->root_c);
if (mrb->root_c->fib) {
mrb_gc_mark(mrb, (struct RBasic*)mrb->root_c->fib);
}
if (mrb->root_c != mrb->c) {
mark_context(mrb, mrb->c);
}
}
static void
root_scan_phase(mrb_state *mrb, mrb_gc *gc)
{
int i, e;
if (!is_minor_gc(gc)) {
gc->gray_list = NULL;
gc->atomic_gray_list = NULL;
}
mrb_gc_mark_gv(mrb);
/* mark arena */
for (i=0,e=gc->arena_idx; i<e; i++) {
mrb_gc_mark(mrb, gc->arena[i]);
}
/* mark class hierarchy */
mrb_gc_mark(mrb, (struct RBasic*)mrb->object_class);
/* mark built-in classes */
mrb_gc_mark(mrb, (struct RBasic*)mrb->class_class);
mrb_gc_mark(mrb, (struct RBasic*)mrb->module_class);
mrb_gc_mark(mrb, (struct RBasic*)mrb->proc_class);
mrb_gc_mark(mrb, (struct RBasic*)mrb->string_class);
mrb_gc_mark(mrb, (struct RBasic*)mrb->array_class);
mrb_gc_mark(mrb, (struct RBasic*)mrb->hash_class);
mrb_gc_mark(mrb, (struct RBasic*)mrb->range_class);
#ifndef MRB_WITHOUT_FLOAT
mrb_gc_mark(mrb, (struct RBasic*)mrb->float_class);
#endif
mrb_gc_mark(mrb, (struct RBasic*)mrb->fixnum_class);
mrb_gc_mark(mrb, (struct RBasic*)mrb->true_class);
mrb_gc_mark(mrb, (struct RBasic*)mrb->false_class);
mrb_gc_mark(mrb, (struct RBasic*)mrb->nil_class);
mrb_gc_mark(mrb, (struct RBasic*)mrb->symbol_class);
mrb_gc_mark(mrb, (struct RBasic*)mrb->kernel_module);
mrb_gc_mark(mrb, (struct RBasic*)mrb->eException_class);
mrb_gc_mark(mrb, (struct RBasic*)mrb->eStandardError_class);
/* mark top_self */
mrb_gc_mark(mrb, (struct RBasic*)mrb->top_self);
/* mark exception */
mrb_gc_mark(mrb, (struct RBasic*)mrb->exc);
/* mark pre-allocated exception */
mrb_gc_mark(mrb, (struct RBasic*)mrb->nomem_err);
mrb_gc_mark(mrb, (struct RBasic*)mrb->stack_err);
#ifdef MRB_GC_FIXED_ARENA
mrb_gc_mark(mrb, (struct RBasic*)mrb->arena_err);
#endif
mark_context(mrb, mrb->c);
if (mrb->root_c != mrb->c) {
mark_context(mrb, mrb->root_c);
}
}
static void
mark_context(mrb_state *mrb, struct mrb_context *c)
{
int i;
mrb_callinfo *ci;
if (c->status == MRB_FIBER_TERMINATED) return;
/* mark VM stack */
mark_context_stack(mrb, c);
/* mark call stack */
if (c->cibase) {
for (ci = c->cibase; ci <= c->ci; ci++) {
mrb_gc_mark(mrb, (struct RBasic*)ci->env);
mrb_gc_mark(mrb, (struct RBasic*)ci->proc);
mrb_gc_mark(mrb, (struct RBasic*)ci->target_class);
}
}
/* mark ensure stack */
for (i=0; i<c->esize; i++) {
if (c->ensure[i] == NULL) break;
mrb_gc_mark(mrb, (struct RBasic*)c->ensure[i]);
}
/* mark fibers */
mrb_gc_mark(mrb, (struct RBasic*)c->fib);
if (c->prev) {
mark_context(mrb, c->prev);
}
}
static void
final_marking_phase(mrb_state *mrb, mrb_gc *gc)
{
int i, e;
/* mark arena */
for (i=0,e=gc->arena_idx; i<e; i++) {
mrb_gc_mark(mrb, gc->arena[i]);
}
mrb_gc_mark_gv(mrb);
mark_context(mrb, mrb->c);
mark_context(mrb, mrb->root_c);
mrb_gc_mark(mrb, (struct RBasic*)mrb->exc);
gc_mark_gray_list(mrb, gc);
mrb_assert(gc->gray_list == NULL);
gc->gray_list = gc->atomic_gray_list;
gc->atomic_gray_list = NULL;
gc_mark_gray_list(mrb, gc);
mrb_assert(gc->gray_list == NULL);
}
static void
root_scan_phase(mrb_state *mrb)
{
int j;
size_t i, e;
if (!is_minor_gc(mrb)) {
mrb->gray_list = 0;
mrb->variable_gray_list = 0;
}
mrb_gc_mark_gv(mrb);
/* mark arena */
for (i=0,e=mrb->arena_idx; i<e; i++) {
mrb_gc_mark(mrb, mrb->arena[i]);
}
/* mark class hierarchy */
mrb_gc_mark(mrb, (struct RBasic*)mrb->object_class);
/* mark top_self */
mrb_gc_mark(mrb, (struct RBasic*)mrb->top_self);
/* mark exception */
mrb_gc_mark(mrb, (struct RBasic*)mrb->exc);
mark_context(mrb, mrb->c);
/* mark irep pool */
if (mrb->irep) {
size_t len = mrb->irep_len;
if (len > mrb->irep_capa) len = mrb->irep_capa;
for (i=0; i<len; i++) {
mrb_irep *irep = mrb->irep[i];
if (!irep) continue;
for (j=0; j<irep->plen; j++) {
mrb_gc_mark_value(mrb, irep->pool[j]);
}
}
}
}
static void
gc_mark_children(mrb_state *mrb, struct RBasic *obj)
{
mrb_assert(is_gray(obj));
paint_black(obj);
mrb->gray_list = obj->gcnext;
mrb_gc_mark(mrb, (struct RBasic*)obj->c);
switch (obj->tt) {
case MRB_TT_ICLASS:
mrb_gc_mark(mrb, (struct RBasic*)((struct RClass*)obj)->super);
break;
case MRB_TT_CLASS:
case MRB_TT_MODULE:
case MRB_TT_SCLASS:
{
struct RClass *c = (struct RClass*)obj;
mrb_gc_mark_mt(mrb, c);
mrb_gc_mark(mrb, (struct RBasic*)c->super);
}
/* fall through */
case MRB_TT_OBJECT:
case MRB_TT_DATA:
mrb_gc_mark_iv(mrb, (struct RObject*)obj);
break;
case MRB_TT_PROC:
{
struct RProc *p = (struct RProc*)obj;
mrb_gc_mark(mrb, (struct RBasic*)p->env);
mrb_gc_mark(mrb, (struct RBasic*)p->target_class);
}
break;
case MRB_TT_ENV:
{
struct REnv *e = (struct REnv*)obj;
if (!MRB_ENV_STACK_SHARED_P(e)) {
int i, len;
len = (int)MRB_ENV_STACK_LEN(e);
for (i=0; i<len; i++) {
mrb_gc_mark_value(mrb, e->stack[i]);
}
}
}
break;
case MRB_TT_FIBER:
{
struct mrb_context *c = ((struct RFiber*)obj)->cxt;
if (c) mark_context(mrb, c);
}
break;
case MRB_TT_ARRAY:
{
struct RArray *a = (struct RArray*)obj;
size_t i, e;
for (i=0,e=a->len; i<e; i++) {
mrb_gc_mark_value(mrb, a->ptr[i]);
}
}
break;
case MRB_TT_HASH:
mrb_gc_mark_iv(mrb, (struct RObject*)obj);
mrb_gc_mark_hash(mrb, (struct RHash*)obj);
break;
case MRB_TT_STRING:
break;
case MRB_TT_RANGE:
{
struct RRange *r = (struct RRange*)obj;
if (r->edges) {
mrb_gc_mark_value(mrb, r->edges->beg);
mrb_gc_mark_value(mrb, r->edges->end);
}
}
break;
default:
break;
}
}
static void
gc_mark_children(mrb_state *mrb, mrb_gc *gc, struct RBasic *obj)
{
mrb_assert(is_gray(obj));
paint_black(obj);
gc->gray_list = obj->gcnext;
mrb_gc_mark(mrb, (struct RBasic*)obj->c);
switch (obj->tt) {
case MRB_TT_ICLASS:
{
struct RClass *c = (struct RClass*)obj;
if (MRB_FLAG_TEST(c, MRB_FLAG_IS_ORIGIN))
mrb_gc_mark_mt(mrb, c);
mrb_gc_mark(mrb, (struct RBasic*)((struct RClass*)obj)->super);
}
break;
case MRB_TT_CLASS:
case MRB_TT_MODULE:
case MRB_TT_SCLASS:
{
struct RClass *c = (struct RClass*)obj;
mrb_gc_mark_mt(mrb, c);
mrb_gc_mark(mrb, (struct RBasic*)c->super);
}
/* fall through */
case MRB_TT_OBJECT:
case MRB_TT_DATA:
case MRB_TT_EXCEPTION:
mrb_gc_mark_iv(mrb, (struct RObject*)obj);
break;
case MRB_TT_PROC:
{
struct RProc *p = (struct RProc*)obj;
mrb_gc_mark(mrb, (struct RBasic*)p->upper);
mrb_gc_mark(mrb, (struct RBasic*)p->e.env);
}
break;
case MRB_TT_ENV:
{
struct REnv *e = (struct REnv*)obj;
mrb_int i, len;
if (MRB_ENV_STACK_SHARED_P(e) && e->cxt && e->cxt->fib) {
mrb_gc_mark(mrb, (struct RBasic*)e->cxt->fib);
}
len = MRB_ENV_STACK_LEN(e);
for (i=0; i<len; i++) {
mrb_gc_mark_value(mrb, e->stack[i]);
}
}
break;
case MRB_TT_FIBER:
{
struct mrb_context *c = ((struct RFiber*)obj)->cxt;
if (c) mark_context(mrb, c);
}
break;
case MRB_TT_ARRAY:
{
struct RArray *a = (struct RArray*)obj;
size_t i, e;
for (i=0,e=ARY_LEN(a); i<e; i++) {
mrb_gc_mark_value(mrb, ARY_PTR(a)[i]);
}
}
break;
case MRB_TT_HASH:
mrb_gc_mark_iv(mrb, (struct RObject*)obj);
mrb_gc_mark_hash(mrb, (struct RHash*)obj);
break;
case MRB_TT_STRING:
if (RSTR_FSHARED_P(obj) && !RSTR_NOFREE_P(obj)) {
struct RString *s = (struct RString*)obj;
mrb_gc_mark(mrb, (struct RBasic*)s->as.heap.aux.fshared);
}
break;
case MRB_TT_RANGE:
{
struct RRange *r = (struct RRange*)obj;
if (r->edges) {
mrb_gc_mark_value(mrb, r->edges->beg);
mrb_gc_mark_value(mrb, r->edges->end);
}
}
break;
default:
break;
}
}
