vm: replace generations array with individual instance variables referencing zone objects
							parent
							
								
									3914b0264b
								
							
						
					
					
						commit
						651a7fb6fa
					
				| 
						 | 
				
			
			@ -97,7 +97,7 @@ SYMBOL: dh-file
 | 
			
		|||
        <login-config> <factor-boilerplate> test-db <alloy> "concatenative.org" add-responder
 | 
			
		||||
        <pastebin> <login-config> <factor-boilerplate> test-db <alloy> "paste.factorcode.org" add-responder
 | 
			
		||||
        <planet> <login-config> <factor-boilerplate> test-db <alloy> "planet.factorcode.org" add-responder
 | 
			
		||||
        home "docs" append-path <help-webapp> test-db <alloy> "docs.factorcode.org" add-responder
 | 
			
		||||
        home "docs" append-path <help-webapp> "docs.factorcode.org" add-responder
 | 
			
		||||
        home "cgi" append-path <gitweb> "gitweb.factorcode.org" add-responder
 | 
			
		||||
        <mason-app> "builds.factorcode.org" add-responder
 | 
			
		||||
    main-responder set-global ;
 | 
			
		||||
| 
						 | 
				
			
			
 | 
			
		|||
| 
						 | 
				
			
			@ -27,6 +27,7 @@ void code_heap::code_heap_free(code_block *compiled)
 | 
			
		|||
void factor_vm::init_code_heap(cell size)
 | 
			
		||||
{
 | 
			
		||||
	code = new code_heap(secure_gc,size);
 | 
			
		||||
	code->youngest_referenced_generation = nursery_gen;
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
bool factor_vm::in_code_heap_p(cell ptr)
 | 
			
		||||
| 
						 | 
				
			
			
 | 
			
		|||
| 
						 | 
				
			
			@ -3,11 +3,6 @@
 | 
			
		|||
namespace factor
 | 
			
		||||
{
 | 
			
		||||
 | 
			
		||||
void factor_vm::init_data_gc()
 | 
			
		||||
{
 | 
			
		||||
	code->youngest_referenced_generation = nursery_gen;
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
gc_state::gc_state(data_heap *data_, bool growing_data_heap_, cell collecting_gen_) :
 | 
			
		||||
	data(data_),
 | 
			
		||||
	growing_data_heap(growing_data_heap_),
 | 
			
		||||
| 
						 | 
				
			
			@ -81,26 +76,23 @@ template<typename Strategy> object *factor_vm::promote_object(object *untagged,
 | 
			
		|||
	return newpointer;
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
template<typename Strategy> void factor_vm::trace_card(card *ptr, cell gen, cell here, Strategy &strategy)
 | 
			
		||||
template<typename Strategy> void factor_vm::trace_card(card *ptr, cell here, Strategy &strategy)
 | 
			
		||||
{
 | 
			
		||||
	cell card_scan = card_to_addr(ptr) + card_offset(ptr);
 | 
			
		||||
	cell card_end = card_to_addr(ptr + 1);
 | 
			
		||||
 | 
			
		||||
	if(here < card_end)
 | 
			
		||||
		card_end = here;
 | 
			
		||||
	if(here < card_end) card_end = here;
 | 
			
		||||
 | 
			
		||||
	strategy.copy_reachable_objects(card_scan,&card_end);
 | 
			
		||||
 | 
			
		||||
	gc_stats.cards_scanned++;
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
template<typename Strategy> void factor_vm::trace_card_deck(card_deck *deck, cell gen, card mask, card unmask, Strategy &strategy)
 | 
			
		||||
template<typename Strategy> void factor_vm::trace_card_deck(card_deck *deck, cell here, card mask, card unmask, Strategy &strategy)
 | 
			
		||||
{
 | 
			
		||||
	card *first_card = deck_to_card(deck);
 | 
			
		||||
	card *last_card = deck_to_card(deck + 1);
 | 
			
		||||
 | 
			
		||||
	cell here = data->generations[gen].here;
 | 
			
		||||
 | 
			
		||||
	u32 *quad_ptr;
 | 
			
		||||
	u32 quad_mask = mask | (mask << 8) | (mask << 16) | (mask << 24);
 | 
			
		||||
 | 
			
		||||
| 
						 | 
				
			
			@ -115,7 +107,7 @@ template<typename Strategy> void factor_vm::trace_card_deck(card_deck *deck, cel
 | 
			
		|||
			{
 | 
			
		||||
				if(ptr[card] & mask)
 | 
			
		||||
				{
 | 
			
		||||
					trace_card(&ptr[card],gen,here,strategy);
 | 
			
		||||
					trace_card(&ptr[card],here,strategy);
 | 
			
		||||
					ptr[card] &= ~unmask;
 | 
			
		||||
				}
 | 
			
		||||
			}
 | 
			
		||||
| 
						 | 
				
			
			@ -126,10 +118,12 @@ template<typename Strategy> void factor_vm::trace_card_deck(card_deck *deck, cel
 | 
			
		|||
}
 | 
			
		||||
 | 
			
		||||
/* Trace all objects referenced from marked cards */
 | 
			
		||||
template<typename Strategy> void factor_vm::trace_generation_cards(cell gen, Strategy &strategy)
 | 
			
		||||
template<typename Strategy> void factor_vm::trace_cards(cell gen, zone *z, Strategy &strategy)
 | 
			
		||||
{
 | 
			
		||||
	card_deck *first_deck = addr_to_deck(data->generations[gen].start);
 | 
			
		||||
	card_deck *last_deck = addr_to_deck(data->generations[gen].end);
 | 
			
		||||
	u64 start_time = current_micros();
 | 
			
		||||
 | 
			
		||||
	card_deck *first_deck = addr_to_deck(z->start);
 | 
			
		||||
	card_deck *last_deck = addr_to_deck(z->end);
 | 
			
		||||
 | 
			
		||||
	card mask, unmask;
 | 
			
		||||
 | 
			
		||||
| 
						 | 
				
			
			@ -185,23 +179,12 @@ template<typename Strategy> void factor_vm::trace_generation_cards(cell gen, Str
 | 
			
		|||
	{
 | 
			
		||||
		if(*ptr & mask)
 | 
			
		||||
		{
 | 
			
		||||
			trace_card_deck(ptr,gen,mask,unmask,strategy);
 | 
			
		||||
			trace_card_deck(ptr,z->here,mask,unmask,strategy);
 | 
			
		||||
			*ptr &= ~unmask;
 | 
			
		||||
		}
 | 
			
		||||
	}
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
/* Scan cards in all generations older than the one being collected, copying
 | 
			
		||||
old->new references */
 | 
			
		||||
template<typename Strategy> void factor_vm::trace_cards(Strategy &strategy)
 | 
			
		||||
{
 | 
			
		||||
	u64 start = current_micros();
 | 
			
		||||
 | 
			
		||||
	cell i;
 | 
			
		||||
	for(i = current_gc->collecting_gen + 1; i < gen_count; i++)
 | 
			
		||||
		trace_generation_cards(i,strategy);
 | 
			
		||||
 | 
			
		||||
	gc_stats.card_scan_time += (current_micros() - start);
 | 
			
		||||
	gc_stats.card_scan_time += (current_micros() - start_time);
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
/* Copy all tagged pointers in a range of memory */
 | 
			
		||||
| 
						 | 
				
			
			@ -482,7 +465,7 @@ struct aging_collector : copying_collector<aging_collector>
 | 
			
		|||
 | 
			
		||||
	explicit aging_collector(factor_vm *myvm_, zone *newspace_) :
 | 
			
		||||
		copying_collector<aging_collector>(myvm_,newspace_),
 | 
			
		||||
		tenured(&myvm->data->generations[tenured_gen]) {}
 | 
			
		||||
		tenured(myvm->data->tenured) {}
 | 
			
		||||
 | 
			
		||||
	bool should_copy_p(object *untagged)
 | 
			
		||||
	{
 | 
			
		||||
| 
						 | 
				
			
			@ -536,11 +519,12 @@ struct tenured_collector : copying_collector<tenured_collector>
 | 
			
		|||
 | 
			
		||||
void factor_vm::collect_nursery()
 | 
			
		||||
{
 | 
			
		||||
	nursery_collector collector(this,&data->generations[aging_gen]);
 | 
			
		||||
	nursery_collector collector(this,data->aging);
 | 
			
		||||
 | 
			
		||||
	trace_roots(collector);
 | 
			
		||||
	trace_contexts(collector);
 | 
			
		||||
	trace_cards(collector);
 | 
			
		||||
	trace_cards(tenured_gen,data->tenured,collector);
 | 
			
		||||
	trace_cards(aging_gen,data->aging,collector);
 | 
			
		||||
	trace_code_heap_roots(collector);
 | 
			
		||||
	collector.go();
 | 
			
		||||
	update_dirty_code_blocks();
 | 
			
		||||
| 
						 | 
				
			
			@ -550,14 +534,14 @@ void factor_vm::collect_nursery()
 | 
			
		|||
 | 
			
		||||
void factor_vm::collect_aging()
 | 
			
		||||
{
 | 
			
		||||
	std::swap(data->generations[aging_gen],data->semispaces[aging_gen]);
 | 
			
		||||
	reset_generation(aging_gen);
 | 
			
		||||
	std::swap(data->aging,data->aging_semispace);
 | 
			
		||||
	reset_generation(data->aging);
 | 
			
		||||
 | 
			
		||||
	aging_collector collector(this,&data->generations[aging_gen]);
 | 
			
		||||
	aging_collector collector(this,data->aging);
 | 
			
		||||
 | 
			
		||||
	trace_roots(collector);
 | 
			
		||||
	trace_contexts(collector);
 | 
			
		||||
	trace_cards(collector);
 | 
			
		||||
	trace_cards(tenured_gen,data->tenured,collector);
 | 
			
		||||
	trace_code_heap_roots(collector);
 | 
			
		||||
	collector.go();
 | 
			
		||||
	update_dirty_code_blocks();
 | 
			
		||||
| 
						 | 
				
			
			@ -567,16 +551,16 @@ void factor_vm::collect_aging()
 | 
			
		|||
 | 
			
		||||
void factor_vm::collect_aging_again()
 | 
			
		||||
{
 | 
			
		||||
	aging_again_collector collector(this,&data->generations[tenured_gen]);
 | 
			
		||||
	aging_again_collector collector(this,data->tenured);
 | 
			
		||||
 | 
			
		||||
	trace_roots(collector);
 | 
			
		||||
	trace_contexts(collector);
 | 
			
		||||
	trace_cards(collector);
 | 
			
		||||
	trace_cards(tenured_gen,data->tenured,collector);
 | 
			
		||||
	trace_code_heap_roots(collector);
 | 
			
		||||
	collector.go();
 | 
			
		||||
	update_dirty_code_blocks();
 | 
			
		||||
 | 
			
		||||
	reset_generation(aging_gen);
 | 
			
		||||
	reset_generation(data->aging);
 | 
			
		||||
	nursery.here = nursery.start;
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
| 
						 | 
				
			
			@ -589,18 +573,18 @@ void factor_vm::collect_tenured(cell requested_bytes, bool trace_contexts_)
 | 
			
		|||
	}
 | 
			
		||||
	else
 | 
			
		||||
	{
 | 
			
		||||
		std::swap(data->generations[tenured_gen],data->semispaces[tenured_gen]);
 | 
			
		||||
		reset_generation(tenured_gen);
 | 
			
		||||
		std::swap(data->tenured,data->tenured_semispace);
 | 
			
		||||
		reset_generation(data->tenured);
 | 
			
		||||
	}
 | 
			
		||||
 | 
			
		||||
	tenured_collector collector(this,&data->generations[tenured_gen]);
 | 
			
		||||
	tenured_collector collector(this,data->tenured);
 | 
			
		||||
 | 
			
		||||
        trace_roots(collector);
 | 
			
		||||
        if(trace_contexts_) trace_contexts(collector);
 | 
			
		||||
        collector.go();
 | 
			
		||||
        free_unmarked_code_blocks();
 | 
			
		||||
 | 
			
		||||
	reset_generation(aging_gen);
 | 
			
		||||
	reset_generation(data->aging);
 | 
			
		||||
	nursery.here = nursery.start;
 | 
			
		||||
 | 
			
		||||
	if(current_gc->growing_data_heap)
 | 
			
		||||
| 
						 | 
				
			
			@ -798,23 +782,15 @@ object *factor_vm::allot_object(header header, cell size)
 | 
			
		|||
	tenured space */
 | 
			
		||||
	else
 | 
			
		||||
	{
 | 
			
		||||
		zone *tenured = &data->generations[tenured_gen];
 | 
			
		||||
 | 
			
		||||
		/* If tenured space does not have enough room, collect */
 | 
			
		||||
		if(tenured->here + size > tenured->end)
 | 
			
		||||
		{
 | 
			
		||||
		if(data->tenured->here + size > data->tenured->end)
 | 
			
		||||
			gc();
 | 
			
		||||
			tenured = &data->generations[tenured_gen];
 | 
			
		||||
		}
 | 
			
		||||
 | 
			
		||||
		/* If it still won't fit, grow the heap */
 | 
			
		||||
		if(tenured->here + size > tenured->end)
 | 
			
		||||
		{
 | 
			
		||||
		if(data->tenured->here + size > data->tenured->end)
 | 
			
		||||
			garbage_collection(tenured_gen,true,true,size);
 | 
			
		||||
			tenured = &data->generations[tenured_gen];
 | 
			
		||||
		}
 | 
			
		||||
 | 
			
		||||
		obj = tenured->allot(size);
 | 
			
		||||
		obj = data->tenured->allot(size);
 | 
			
		||||
		allot_barrier(obj);
 | 
			
		||||
 | 
			
		||||
		/* Allows initialization code to store old->new pointers
 | 
			
		||||
| 
						 | 
				
			
			
 | 
			
		|||
							
								
								
									
										105
									
								
								vm/data_heap.cpp
								
								
								
								
							
							
						
						
									
										105
									
								
								vm/data_heap.cpp
								
								
								
								
							| 
						 | 
				
			
			@ -27,12 +27,7 @@ data_heap::data_heap(factor_vm *myvm, cell young_size_, cell aging_size_, cell t
 | 
			
		|||
 | 
			
		||||
	seg = new segment(total_size);
 | 
			
		||||
 | 
			
		||||
	generations = new zone[gen_count];
 | 
			
		||||
	semispaces = new zone[gen_count];
 | 
			
		||||
 | 
			
		||||
	cell cards_size = total_size >> card_bits;
 | 
			
		||||
	allot_markers = new char[cards_size];
 | 
			
		||||
	allot_markers_end = allot_markers + cards_size;
 | 
			
		||||
 | 
			
		||||
	cards = new char[cards_size];
 | 
			
		||||
	cards_end = cards + cards_size;
 | 
			
		||||
| 
						 | 
				
			
			@ -41,21 +36,41 @@ data_heap::data_heap(factor_vm *myvm, cell young_size_, cell aging_size_, cell t
 | 
			
		|||
	decks = new char[decks_size];
 | 
			
		||||
	decks_end = decks + decks_size;
 | 
			
		||||
 | 
			
		||||
	allot_markers = new char[cards_size];
 | 
			
		||||
	allot_markers_end = allot_markers + cards_size;
 | 
			
		||||
 | 
			
		||||
	cell alloter = align(seg->start,deck_size);
 | 
			
		||||
 | 
			
		||||
	alloter = generations[tenured_gen].init_zone(tenured_size,alloter);
 | 
			
		||||
	alloter = semispaces[tenured_gen].init_zone(tenured_size,alloter);
 | 
			
		||||
	tenured = new zone;
 | 
			
		||||
	tenured_semispace = new zone;
 | 
			
		||||
	alloter = tenured->init_zone(tenured_size,alloter);
 | 
			
		||||
	alloter = tenured_semispace->init_zone(tenured_size,alloter);
 | 
			
		||||
 | 
			
		||||
	alloter = generations[aging_gen].init_zone(aging_size,alloter);
 | 
			
		||||
	alloter = semispaces[aging_gen].init_zone(aging_size,alloter);
 | 
			
		||||
	aging = new zone;
 | 
			
		||||
	aging_semispace = new zone;
 | 
			
		||||
	alloter = aging->init_zone(aging_size,alloter);
 | 
			
		||||
	alloter = aging_semispace->init_zone(aging_size,alloter);
 | 
			
		||||
 | 
			
		||||
	alloter = generations[nursery_gen].init_zone(young_size,alloter);
 | 
			
		||||
	alloter = semispaces[nursery_gen].init_zone(0,alloter);
 | 
			
		||||
	nursery = new zone;
 | 
			
		||||
	alloter = nursery->init_zone(young_size,alloter);
 | 
			
		||||
 | 
			
		||||
	if(seg->end - alloter > deck_size)
 | 
			
		||||
		critical_error("Bug in alloc_data_heap",alloter);
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
data_heap::~data_heap()
 | 
			
		||||
{
 | 
			
		||||
	delete seg;
 | 
			
		||||
	delete nursery;
 | 
			
		||||
	delete aging;
 | 
			
		||||
	delete aging_semispace;
 | 
			
		||||
	delete tenured;
 | 
			
		||||
	delete tenured_semispace;
 | 
			
		||||
	delete[] allot_markers;
 | 
			
		||||
	delete[] cards;
 | 
			
		||||
	delete[] decks;
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
data_heap *factor_vm::grow_data_heap(data_heap *data, cell requested_bytes)
 | 
			
		||||
{
 | 
			
		||||
	cell new_tenured_size = (data->tenured_size * 2) + requested_bytes;
 | 
			
		||||
| 
						 | 
				
			
			@ -66,48 +81,35 @@ data_heap *factor_vm::grow_data_heap(data_heap *data, cell requested_bytes)
 | 
			
		|||
		new_tenured_size);
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
data_heap::~data_heap()
 | 
			
		||||
{
 | 
			
		||||
	delete seg;
 | 
			
		||||
	delete[] generations;
 | 
			
		||||
	delete[] semispaces;
 | 
			
		||||
	delete[] allot_markers;
 | 
			
		||||
	delete[] cards;
 | 
			
		||||
	delete[] decks;
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
void factor_vm::clear_cards(cell gen)
 | 
			
		||||
void factor_vm::clear_cards(zone *gen)
 | 
			
		||||
{
 | 
			
		||||
	/* NOTE: reverse order due to heap layout. */
 | 
			
		||||
	card *first_card = addr_to_card(data->generations[gen].start);
 | 
			
		||||
	card *last_card = addr_to_card(data->generations[gen].end);
 | 
			
		||||
	card *first_card = addr_to_card(gen->start);
 | 
			
		||||
	card *last_card = addr_to_card(gen->end);
 | 
			
		||||
	memset(first_card,0,last_card - first_card);
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
void factor_vm::clear_decks(cell gen)
 | 
			
		||||
void factor_vm::clear_decks(zone *gen)
 | 
			
		||||
{
 | 
			
		||||
	/* NOTE: reverse order due to heap layout. */
 | 
			
		||||
	card_deck *first_deck = addr_to_deck(data->generations[gen].start);
 | 
			
		||||
	card_deck *last_deck = addr_to_deck(data->generations[gen].end);
 | 
			
		||||
	card_deck *first_deck = addr_to_deck(gen->start);
 | 
			
		||||
	card_deck *last_deck = addr_to_deck(gen->end);
 | 
			
		||||
	memset(first_deck,0,last_deck - first_deck);
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
void factor_vm::clear_allot_markers(cell gen)
 | 
			
		||||
void factor_vm::clear_allot_markers(zone *gen)
 | 
			
		||||
{
 | 
			
		||||
	card *first_card = addr_to_allot_marker((object *)data->generations[gen].start);
 | 
			
		||||
	card *last_card = addr_to_allot_marker((object *)data->generations[gen].end);
 | 
			
		||||
	card *first_card = addr_to_allot_marker((object *)gen->start);
 | 
			
		||||
	card *last_card = addr_to_allot_marker((object *)gen->end);
 | 
			
		||||
	memset(first_card,invalid_allot_marker,last_card - first_card);
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
/* After garbage collection, any generations which are now empty need to have
 | 
			
		||||
their allocation pointers and cards reset. */
 | 
			
		||||
void factor_vm::reset_generation(cell gen)
 | 
			
		||||
void factor_vm::reset_generation(zone *gen)
 | 
			
		||||
{
 | 
			
		||||
	assert(gen != nursery_gen);
 | 
			
		||||
 | 
			
		||||
	zone *z = &data->generations[gen];
 | 
			
		||||
	z->here = z->start;
 | 
			
		||||
	if(secure_gc) memset((void*)z->start,69,z->size);
 | 
			
		||||
	gen->here = gen->start;
 | 
			
		||||
	if(secure_gc) memset((void*)gen->start,69,gen->size);
 | 
			
		||||
 | 
			
		||||
	clear_cards(gen);
 | 
			
		||||
	clear_decks(gen);
 | 
			
		||||
| 
						 | 
				
			
			@ -117,18 +119,17 @@ void factor_vm::reset_generation(cell gen)
 | 
			
		|||
void factor_vm::set_data_heap(data_heap *data_)
 | 
			
		||||
{
 | 
			
		||||
	data = data_;
 | 
			
		||||
	nursery = data->generations[nursery_gen];
 | 
			
		||||
	nursery = *data->nursery;
 | 
			
		||||
	nursery.here = nursery.start;
 | 
			
		||||
	init_card_decks();
 | 
			
		||||
	reset_generation(aging_gen);
 | 
			
		||||
	reset_generation(tenured_gen);
 | 
			
		||||
	reset_generation(data->aging);
 | 
			
		||||
	reset_generation(data->tenured);
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
void factor_vm::init_data_heap(cell young_size, cell aging_size, cell tenured_size, bool secure_gc_)
 | 
			
		||||
{
 | 
			
		||||
	set_data_heap(new data_heap(this,young_size,aging_size,tenured_size));
 | 
			
		||||
	secure_gc = secure_gc_;
 | 
			
		||||
	init_data_gc();
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
/* Size of the object pointed to by a tagged pointer */
 | 
			
		||||
| 
						 | 
				
			
			@ -231,13 +232,14 @@ void factor_vm::primitive_data_room()
 | 
			
		|||
 | 
			
		||||
	growable_array a(this);
 | 
			
		||||
 | 
			
		||||
	cell gen;
 | 
			
		||||
	for(gen = 0; gen < gen_count; gen++)
 | 
			
		||||
	{
 | 
			
		||||
		zone *z = (gen == nursery_gen ? &nursery : &data->generations[gen]);
 | 
			
		||||
		a.add(tag_fixnum((z->end - z->here) >> 10));
 | 
			
		||||
		a.add(tag_fixnum((z->size) >> 10));
 | 
			
		||||
	}
 | 
			
		||||
	a.add(tag_fixnum((nursery.end - nursery.here) >> 10));
 | 
			
		||||
	a.add(tag_fixnum((nursery.size) >> 10));
 | 
			
		||||
 | 
			
		||||
	a.add(tag_fixnum((data->aging->end - data->aging->here) >> 10));
 | 
			
		||||
	a.add(tag_fixnum((data->aging->size) >> 10));
 | 
			
		||||
 | 
			
		||||
	a.add(tag_fixnum((data->tenured->end - data->tenured->here) >> 10));
 | 
			
		||||
	a.add(tag_fixnum((data->tenured->size) >> 10));
 | 
			
		||||
 | 
			
		||||
	a.trim();
 | 
			
		||||
	dpush(a.elements.value());
 | 
			
		||||
| 
						 | 
				
			
			@ -246,7 +248,7 @@ void factor_vm::primitive_data_room()
 | 
			
		|||
/* Disables GC and activates next-object ( -- obj ) primitive */
 | 
			
		||||
void factor_vm::begin_scan()
 | 
			
		||||
{
 | 
			
		||||
	heap_scan_ptr = data->generations[tenured_gen].start;
 | 
			
		||||
	heap_scan_ptr = data->tenured->start;
 | 
			
		||||
	gc_off = true;
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
| 
						 | 
				
			
			@ -265,7 +267,7 @@ cell factor_vm::next_object()
 | 
			
		|||
	if(!gc_off)
 | 
			
		||||
		general_error(ERROR_HEAP_SCAN,F,F,NULL);
 | 
			
		||||
 | 
			
		||||
	if(heap_scan_ptr >= data->generations[tenured_gen].here)
 | 
			
		||||
	if(heap_scan_ptr >= data->tenured->here)
 | 
			
		||||
		return F;
 | 
			
		||||
 | 
			
		||||
	object *obj = (object *)heap_scan_ptr;
 | 
			
		||||
| 
						 | 
				
			
			@ -294,9 +296,6 @@ template<typename Iterator> void factor_vm::each_object(Iterator &iterator)
 | 
			
		|||
	end_scan();
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
namespace
 | 
			
		||||
{
 | 
			
		||||
 | 
			
		||||
struct word_counter {
 | 
			
		||||
	cell count;
 | 
			
		||||
	explicit word_counter() : count(0) {}
 | 
			
		||||
| 
						 | 
				
			
			@ -309,8 +308,6 @@ struct word_accumulator {
 | 
			
		|||
	void operator()(tagged<object> obj) { if(obj.type_p(WORD_TYPE)) words.add(obj.value()); }
 | 
			
		||||
};
 | 
			
		||||
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
cell factor_vm::find_all_words()
 | 
			
		||||
{
 | 
			
		||||
	word_counter counter;
 | 
			
		||||
| 
						 | 
				
			
			
 | 
			
		|||
| 
						 | 
				
			
			@ -1,45 +1,18 @@
 | 
			
		|||
namespace factor
 | 
			
		||||
{
 | 
			
		||||
 | 
			
		||||
/* generational copying GC divides memory into zones */
 | 
			
		||||
struct zone {
 | 
			
		||||
	/* allocation pointer is 'here'; its offset is hardcoded in the
 | 
			
		||||
	compiler backends */
 | 
			
		||||
	cell start;
 | 
			
		||||
	cell here;
 | 
			
		||||
	cell size;
 | 
			
		||||
	cell end;
 | 
			
		||||
 | 
			
		||||
	cell init_zone(cell size_, cell start_)
 | 
			
		||||
	{
 | 
			
		||||
		size = size_;
 | 
			
		||||
		start = here = start_;
 | 
			
		||||
		end = start_ + size_;
 | 
			
		||||
		return end;
 | 
			
		||||
	}
 | 
			
		||||
 | 
			
		||||
	inline bool contains_p(object *pointer)
 | 
			
		||||
	{
 | 
			
		||||
		return ((cell)pointer - start) < size;
 | 
			
		||||
	}
 | 
			
		||||
 | 
			
		||||
	inline object *allot(cell size)
 | 
			
		||||
	{
 | 
			
		||||
		cell h = here;
 | 
			
		||||
		here = h + align8(size);
 | 
			
		||||
		return (object *)h;
 | 
			
		||||
	}
 | 
			
		||||
};
 | 
			
		||||
 | 
			
		||||
struct data_heap {
 | 
			
		||||
	segment *seg;
 | 
			
		||||
 | 
			
		||||
	cell young_size;
 | 
			
		||||
	cell aging_size;
 | 
			
		||||
	cell tenured_size;
 | 
			
		||||
 | 
			
		||||
	zone *generations;
 | 
			
		||||
	zone *semispaces;
 | 
			
		||||
	segment *seg;
 | 
			
		||||
 | 
			
		||||
	zone *nursery;
 | 
			
		||||
	zone *aging;
 | 
			
		||||
	zone *aging_semispace;
 | 
			
		||||
	zone *tenured;
 | 
			
		||||
	zone *tenured_semispace;
 | 
			
		||||
 | 
			
		||||
	char *allot_markers;
 | 
			
		||||
	char *allot_markers_end;
 | 
			
		||||
| 
						 | 
				
			
			
 | 
			
		|||
							
								
								
									
										22
									
								
								vm/debug.cpp
								
								
								
								
							
							
						
						
									
										22
									
								
								vm/debug.cpp
								
								
								
								
							| 
						 | 
				
			
			@ -211,8 +211,9 @@ void factor_vm::dump_memory(cell from, cell to)
 | 
			
		|||
		dump_cell(from);
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
void factor_vm::dump_zone(zone *z)
 | 
			
		||||
void factor_vm::dump_zone(cell gen, zone *z)
 | 
			
		||||
{
 | 
			
		||||
	print_string("Generation "); print_cell(gen); print_string(": ");
 | 
			
		||||
	print_string("Start="); print_cell(z->start);
 | 
			
		||||
	print_string(", size="); print_cell(z->size);
 | 
			
		||||
	print_string(", here="); print_cell(z->here - z->start); nl();
 | 
			
		||||
| 
						 | 
				
			
			@ -220,22 +221,9 @@ void factor_vm::dump_zone(zone *z)
 | 
			
		|||
 | 
			
		||||
void factor_vm::dump_generations()
 | 
			
		||||
{
 | 
			
		||||
	cell i;
 | 
			
		||||
 | 
			
		||||
	print_string("Nursery: ");
 | 
			
		||||
	dump_zone(&nursery);
 | 
			
		||||
	
 | 
			
		||||
	for(i = 1; i < gen_count; i++)
 | 
			
		||||
	{
 | 
			
		||||
		print_string("Generation "); print_cell(i); print_string(": ");
 | 
			
		||||
		dump_zone(&data->generations[i]);
 | 
			
		||||
	}
 | 
			
		||||
 | 
			
		||||
	for(i = 0; i < gen_count; i++)
 | 
			
		||||
	{
 | 
			
		||||
		print_string("Semispace "); print_cell(i); print_string(": ");
 | 
			
		||||
		dump_zone(&data->semispaces[i]);
 | 
			
		||||
	}
 | 
			
		||||
	dump_zone(nursery_gen,&nursery);
 | 
			
		||||
	dump_zone(aging_gen,data->aging);
 | 
			
		||||
	dump_zone(tenured_gen,data->tenured);
 | 
			
		||||
 | 
			
		||||
	print_string("Cards: base=");
 | 
			
		||||
	print_cell((cell)data->cards);
 | 
			
		||||
| 
						 | 
				
			
			
 | 
			
		|||
| 
						 | 
				
			
			@ -0,0 +1,33 @@
 | 
			
		|||
namespace factor
 | 
			
		||||
{
 | 
			
		||||
 | 
			
		||||
struct zone {
 | 
			
		||||
	/* allocation pointer is 'here'; its offset is hardcoded in the
 | 
			
		||||
	compiler backends */
 | 
			
		||||
	cell start;
 | 
			
		||||
	cell here;
 | 
			
		||||
	cell size;
 | 
			
		||||
	cell end;
 | 
			
		||||
 | 
			
		||||
	cell init_zone(cell size_, cell start_)
 | 
			
		||||
	{
 | 
			
		||||
		size = size_;
 | 
			
		||||
		start = here = start_;
 | 
			
		||||
		end = start_ + size_;
 | 
			
		||||
		return end;
 | 
			
		||||
	}
 | 
			
		||||
 | 
			
		||||
	inline bool contains_p(object *pointer)
 | 
			
		||||
	{
 | 
			
		||||
		return ((cell)pointer - start) < size;
 | 
			
		||||
	}
 | 
			
		||||
 | 
			
		||||
	inline object *allot(cell size)
 | 
			
		||||
	{
 | 
			
		||||
		cell h = here;
 | 
			
		||||
		here = h + align8(size);
 | 
			
		||||
		return (object *)h;
 | 
			
		||||
	}
 | 
			
		||||
};
 | 
			
		||||
 | 
			
		||||
}
 | 
			
		||||
							
								
								
									
										23
									
								
								vm/image.cpp
								
								
								
								
							
							
						
						
									
										23
									
								
								vm/image.cpp
								
								
								
								
							| 
						 | 
				
			
			@ -28,9 +28,7 @@ void factor_vm::load_data_heap(FILE *file, image_header *h, vm_parameters *p)
 | 
			
		|||
 | 
			
		||||
	clear_gc_stats();
 | 
			
		||||
 | 
			
		||||
	zone *tenured = &data->generations[tenured_gen];
 | 
			
		||||
 | 
			
		||||
	fixnum bytes_read = fread((void*)tenured->start,1,h->data_size,file);
 | 
			
		||||
	fixnum bytes_read = fread((void*)data->tenured->start,1,h->data_size,file);
 | 
			
		||||
 | 
			
		||||
	if((cell)bytes_read != h->data_size)
 | 
			
		||||
	{
 | 
			
		||||
| 
						 | 
				
			
			@ -42,7 +40,7 @@ void factor_vm::load_data_heap(FILE *file, image_header *h, vm_parameters *p)
 | 
			
		|||
		fatal_error("load_data_heap failed",0);
 | 
			
		||||
	}
 | 
			
		||||
 | 
			
		||||
	tenured->here = tenured->start + h->data_size;
 | 
			
		||||
	data->tenured->here = data->tenured->start + h->data_size;
 | 
			
		||||
	data_relocation_base = h->data_relocation_base;
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
| 
						 | 
				
			
			@ -85,12 +83,10 @@ bool factor_vm::save_image(const vm_char *filename)
 | 
			
		|||
		return false;
 | 
			
		||||
	}
 | 
			
		||||
 | 
			
		||||
	zone *tenured = &data->generations[tenured_gen];
 | 
			
		||||
 | 
			
		||||
	h.magic = image_magic;
 | 
			
		||||
	h.version = image_version;
 | 
			
		||||
	h.data_relocation_base = tenured->start;
 | 
			
		||||
	h.data_size = tenured->here - tenured->start;
 | 
			
		||||
	h.data_relocation_base = data->tenured->start;
 | 
			
		||||
	h.data_size = data->tenured->here - data->tenured->start;
 | 
			
		||||
	h.code_relocation_base = code->seg->start;
 | 
			
		||||
	h.code_size = code->heap_size();
 | 
			
		||||
 | 
			
		||||
| 
						 | 
				
			
			@ -105,7 +101,7 @@ bool factor_vm::save_image(const vm_char *filename)
 | 
			
		|||
	bool ok = true;
 | 
			
		||||
 | 
			
		||||
	if(fwrite(&h,sizeof(image_header),1,file) != 1) ok = false;
 | 
			
		||||
	if(fwrite((void*)tenured->start,h.data_size,1,file) != 1) ok = false;
 | 
			
		||||
	if(fwrite((void*)data->tenured->start,h.data_size,1,file) != 1) ok = false;
 | 
			
		||||
	if(fwrite(code->first_block(),h.code_size,1,file) != 1) ok = false;
 | 
			
		||||
	if(fclose(file)) ok = false;
 | 
			
		||||
 | 
			
		||||
| 
						 | 
				
			
			@ -156,8 +152,7 @@ void factor_vm::data_fixup(cell *cell)
 | 
			
		|||
	if(immediate_p(*cell))
 | 
			
		||||
		return;
 | 
			
		||||
 | 
			
		||||
	zone *tenured = &data->generations[tenured_gen];
 | 
			
		||||
	*cell += (tenured->start - data_relocation_base);
 | 
			
		||||
	*cell += (data->tenured->start - data_relocation_base);
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
template<typename Type> void factor_vm::code_fixup(Type **handle)
 | 
			
		||||
| 
						 | 
				
			
			@ -280,10 +275,8 @@ void factor_vm::relocate_data()
 | 
			
		|||
	data_fixup(&bignum_pos_one);
 | 
			
		||||
	data_fixup(&bignum_neg_one);
 | 
			
		||||
 | 
			
		||||
	zone *tenured = &data->generations[tenured_gen];
 | 
			
		||||
 | 
			
		||||
	for(relocating = tenured->start;
 | 
			
		||||
		relocating < tenured->here;
 | 
			
		||||
	for(relocating = data->tenured->start;
 | 
			
		||||
		relocating < data->tenured->here;
 | 
			
		||||
		relocating += untagged_object_size((object *)relocating))
 | 
			
		||||
	{
 | 
			
		||||
		object *obj = (object *)relocating;
 | 
			
		||||
| 
						 | 
				
			
			
 | 
			
		|||
| 
						 | 
				
			
			@ -69,6 +69,7 @@ namespace factor
 | 
			
		|||
#include "bignumint.hpp"
 | 
			
		||||
#include "bignum.hpp"
 | 
			
		||||
#include "code_block.hpp"
 | 
			
		||||
#include "gc/zone.hpp"
 | 
			
		||||
#include "data_heap.hpp"
 | 
			
		||||
#include "write_barrier.hpp"
 | 
			
		||||
#include "data_gc.hpp"
 | 
			
		||||
| 
						 | 
				
			
			
 | 
			
		|||
							
								
								
									
										18
									
								
								vm/vm.hpp
								
								
								
								
							
							
						
						
									
										18
									
								
								vm/vm.hpp
								
								
								
								
							| 
						 | 
				
			
			@ -211,10 +211,10 @@ struct factor_vm
 | 
			
		|||
	//data_heap
 | 
			
		||||
	void init_card_decks();
 | 
			
		||||
	data_heap *grow_data_heap(data_heap *data, cell requested_bytes);
 | 
			
		||||
	void clear_cards(cell gen);
 | 
			
		||||
	void clear_decks(cell gen);
 | 
			
		||||
	void clear_allot_markers(cell gen);
 | 
			
		||||
	void reset_generation(cell gen);
 | 
			
		||||
	void clear_cards(zone *gen);
 | 
			
		||||
	void clear_decks(zone *gen);
 | 
			
		||||
	void clear_allot_markers(zone *gen);
 | 
			
		||||
	void reset_generation(zone *gen);
 | 
			
		||||
	void set_data_heap(data_heap *data_);
 | 
			
		||||
	void init_data_heap(cell young_size, cell aging_size, cell tenured_size, bool secure_gc_);
 | 
			
		||||
	cell untagged_object_size(object *pointer);
 | 
			
		||||
| 
						 | 
				
			
			@ -285,15 +285,13 @@ struct factor_vm
 | 
			
		|||
	}
 | 
			
		||||
 | 
			
		||||
	// data_gc
 | 
			
		||||
	void init_data_gc();
 | 
			
		||||
	template<typename Strategy> object *resolve_forwarding(object *untagged, Strategy &strategy);
 | 
			
		||||
	template<typename Strategy> void trace_handle(cell *handle, Strategy &strategy);
 | 
			
		||||
	template<typename Strategy> object *promote_object(object *pointer, Strategy &strategy);
 | 
			
		||||
	template<typename Strategy> void trace_slots(object *ptr, Strategy &strategy);
 | 
			
		||||
	template<typename Strategy> void trace_card(card *ptr, cell gen, cell here, Strategy &strategy);
 | 
			
		||||
	template<typename Strategy> void trace_card_deck(card_deck *deck, cell gen, card mask, card unmask, Strategy &strategy);
 | 
			
		||||
	template<typename Strategy> void trace_generation_cards(cell gen, Strategy &strategy);
 | 
			
		||||
	template<typename Strategy> void trace_cards(Strategy &strategy);
 | 
			
		||||
	template<typename Strategy> void trace_card(card *ptr, cell here, Strategy &strategy);
 | 
			
		||||
	template<typename Strategy> void trace_card_deck(card_deck *deck, cell here, card mask, card unmask, Strategy &strategy);
 | 
			
		||||
	template<typename Strategy> void trace_cards(cell gen, zone *z, Strategy &strategy);
 | 
			
		||||
	template<typename Strategy> void trace_stack_elements(segment *region, cell top, Strategy &strategy);
 | 
			
		||||
	template<typename Strategy> void trace_registered_locals(Strategy &strategy);
 | 
			
		||||
	template<typename Strategy> void trace_registered_bignums(Strategy &strategy);
 | 
			
		||||
| 
						 | 
				
			
			@ -368,7 +366,7 @@ struct factor_vm
 | 
			
		|||
	void print_callstack();
 | 
			
		||||
	void dump_cell(cell x);
 | 
			
		||||
	void dump_memory(cell from, cell to);
 | 
			
		||||
	void dump_zone(zone *z);
 | 
			
		||||
	void dump_zone(cell gen, zone *z);
 | 
			
		||||
	void dump_generations();
 | 
			
		||||
	void dump_objects(cell type);
 | 
			
		||||
	void find_data_references_step(cell *scan);
 | 
			
		||||
| 
						 | 
				
			
			
 | 
			
		|||
		Loading…
	
		Reference in New Issue