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VM: change lot of visitation objects to use cool lambda functions instead

db4
Björn Lindqvist 2015-07-06 17:49:55 +02:00
parent fce5d4353a
commit 365b39e0cc
4 changed files with 55 additions and 137 deletions
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17
vm/callbacks.cpp
View File

@ -108,20 +108,11 @@ code_block* callback_heap::add(cell owner, cell return_rewind) {
return stub;
}
struct callback_updater {
callback_heap* callbacks;
explicit callback_updater(callback_heap* callbacks)
: callbacks(callbacks) {}
void operator()(code_block* stub, cell size) {
callbacks->update(stub);
}
};
void callback_heap::update() {
callback_updater updater(this);
allocator->iterate(updater);
auto callback_updater = [&](code_block* stub, cell size) {
update(stub);
};
allocator->iterate(callback_updater);
}
/* Allocates memory (add(), allot_alien())*/

59
vm/image.cpp
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@ -77,21 +77,14 @@ struct startup_fixup {
cell size(code_block* compiled) { return compiled->size(*this); }
};
struct start_object_updater {
factor_vm* parent;
startup_fixup fixup;
slot_visitor<startup_fixup> visitor;
start_object_updater(factor_vm* parent, startup_fixup fixup)
: parent(parent),
fixup(fixup),
visitor(slot_visitor<startup_fixup>(parent, fixup)) { }
void operator()(object* obj, cell size) {
parent->data->tenured->starts.record_object_start_offset(obj);
void factor_vm::fixup_data(cell data_offset, cell code_offset) {
startup_fixup fixup(data_offset, code_offset);
slot_visitor<startup_fixup> visitor(this, fixup);
visitor.visit_all_roots();
auto start_object_updater = [&](object *obj, cell size) {
data->tenured->starts.record_object_start_offset(obj);
visitor.visit_slots(obj);
switch (obj->type()) {
case ALIEN_TYPE: {
@ -100,11 +93,11 @@ struct start_object_updater {
if (to_boolean(ptr->base))
ptr->update_address();
else
ptr->expired = parent->true_object;
ptr->expired = true_object;
break;
}
case DLL_TYPE: {
parent->ffi_dlopen((dll*)obj);
ffi_dlopen((dll*)obj);
break;
}
default: {
@ -112,16 +105,8 @@ struct start_object_updater {
break;
}
}
}
};
void factor_vm::fixup_data(cell data_offset, cell code_offset) {
startup_fixup fixup(data_offset, code_offset);
slot_visitor<startup_fixup> visitor(this, fixup);
visitor.visit_all_roots();
start_object_updater updater(this, fixup);
data->tenured->iterate(updater, fixup);
};
data->tenured->iterate(start_object_updater, fixup);
}
struct startup_code_block_relocation_visitor {
@ -169,25 +154,15 @@ struct startup_code_block_relocation_visitor {
}
};
struct startup_code_block_updater {
factor_vm* parent;
startup_fixup fixup;
startup_code_block_updater(factor_vm* parent, startup_fixup fixup)
: parent(parent), fixup(fixup) {}
void operator()(code_block* compiled, cell size) {
slot_visitor<startup_fixup> visitor(parent, fixup);
visitor.visit_code_block_objects(compiled);
startup_code_block_relocation_visitor code_visitor(parent, fixup);
compiled->each_instruction_operand(code_visitor);
}
};
void factor_vm::fixup_code(cell data_offset, cell code_offset) {
startup_fixup fixup(data_offset, code_offset);
startup_code_block_updater updater(this, fixup);
auto updater = [&](code_block* compiled, cell size) {
slot_visitor<startup_fixup> visitor(this, fixup);
visitor.visit_code_block_objects(compiled);
startup_code_block_relocation_visitor code_visitor(this, fixup);
compiled->each_instruction_operand(code_visitor);
};
code->allocator->iterate(updater, fixup);
}

48
vm/objects.cpp
View File

@ -87,37 +87,6 @@ struct slot_become_fixup : no_fixup {
}
};
struct object_become_visitor {
slot_visitor<slot_become_fixup>* visitor;
explicit object_become_visitor(slot_visitor<slot_become_fixup>* visitor)
: visitor(visitor) {}
void operator()(object* obj) { visitor->visit_slots(obj); }
};
struct code_block_become_visitor {
slot_visitor<slot_become_fixup>* visitor;
explicit code_block_become_visitor(
slot_visitor<slot_become_fixup>* visitor) : visitor(visitor) {}
void operator()(code_block* compiled, cell size) {
visitor->visit_code_block_objects(compiled);
visitor->visit_embedded_literals(compiled);
}
};
struct code_block_write_barrier_visitor {
code_heap* code;
explicit code_block_write_barrier_visitor(code_heap* code) : code(code) {}
void operator()(code_block* compiled, cell size) {
code->write_barrier(compiled);
}
};
/* classes.tuple uses this to reshape tuples; tools.deploy.shaker uses this
to coalesce equal but distinct quotations and wrappers. */
/* Calls gc */
@ -147,11 +116,16 @@ void factor_vm::primitive_become() {
slot_become_fixup(&become_map));
visitor.visit_all_roots();
object_become_visitor object_visitor(&visitor);
each_object(object_visitor);
auto object_become_visitor = [&](object* obj) {
visitor.visit_slots(obj);
};
each_object(object_become_visitor);
code_block_become_visitor code_block_visitor(&visitor);
each_code_block(code_block_visitor);
auto code_block_become_visitor = [&](code_block* compiled, cell size) {
visitor.visit_code_block_objects(compiled);
visitor.visit_embedded_literals(compiled);
};
each_code_block(code_block_become_visitor);
}
/* Since we may have introduced old->new references, need to revisit
@ -159,7 +133,9 @@ void factor_vm::primitive_become() {
data->mark_all_cards();
{
code_block_write_barrier_visitor code_block_visitor(code);
auto code_block_visitor = [&](code_block* compiled, cell size) {
code->write_barrier(compiled);
};
each_code_block(code_block_visitor);
}
}

68
vm/slot_visitor.hpp
View File

@ -188,19 +188,11 @@ template <typename Fixup> void slot_visitor<Fixup>::visit_data_roots() {
}
}
template <typename Fixup> struct callback_slot_visitor {
slot_visitor<Fixup>* visitor;
callback_slot_visitor(slot_visitor<Fixup>* visitor) : visitor(visitor) {}
void operator()(code_block* stub, cell size) {
visitor->visit_handle(&stub->owner);
}
};
template <typename Fixup> void slot_visitor<Fixup>::visit_callback_roots() {
callback_slot_visitor<Fixup> callback_visitor(this);
parent->callbacks->allocator->iterate(callback_visitor);
auto callback_slot_visitor = [&](code_block* stub, cell size) {
visit_handle(&stub->owner);
};
parent->callbacks->allocator->iterate(callback_slot_visitor);
}
template <typename Fixup>
@ -381,18 +373,6 @@ template <typename Fixup> void slot_visitor<Fixup>::visit_contexts() {
}
}
template <typename Fixup> struct literal_references_visitor {
slot_visitor<Fixup>* visitor;
explicit literal_references_visitor(slot_visitor<Fixup>* visitor)
: visitor(visitor) {}
void operator()(instruction_operand op) {
if (op.rel_type() == RT_LITERAL)
op.store_value(visitor->visit_pointer(op.load_value()));
}
};
template <typename Fixup>
void slot_visitor<Fixup>::visit_code_block_objects(code_block* compiled) {
visit_handle(&compiled->owner);
@ -402,10 +382,14 @@ void slot_visitor<Fixup>::visit_code_block_objects(code_block* compiled) {
template <typename Fixup>
void slot_visitor<Fixup>::visit_embedded_literals(code_block* compiled) {
if (!parent->code->uninitialized_p(compiled)) {
literal_references_visitor<Fixup> visitor(this);
compiled->each_instruction_operand(visitor);
}
if (parent->code->uninitialized_p(compiled))
return;
auto update_literal_refs = [&](instruction_operand op) {
if (op.rel_type() == RT_LITERAL)
op.store_value(visit_pointer(op.load_value()));
};
compiled->each_instruction_operand(update_literal_refs);
}
template <typename Fixup> struct call_frame_code_block_visitor {
@ -465,25 +449,18 @@ void slot_visitor<Fixup>::visit_uninitialized_code_blocks() {
parent->code->uninitialized_blocks = new_uninitialized_blocks;
}
template <typename Fixup> struct embedded_code_pointers_visitor {
Fixup fixup;
explicit embedded_code_pointers_visitor(Fixup fixup) : fixup(fixup) {}
void operator()(instruction_operand op) {
relocation_type type = op.rel_type();
if (type == RT_ENTRY_POINT || type == RT_ENTRY_POINT_PIC ||
type == RT_ENTRY_POINT_PIC_TAIL)
op.store_code_block(fixup.fixup_code(op.load_code_block()));
}
};
template <typename Fixup>
void slot_visitor<Fixup>::visit_embedded_code_pointers(code_block* compiled) {
if (!parent->code->uninitialized_p(compiled)) {
embedded_code_pointers_visitor<Fixup> operand_visitor(fixup);
compiled->each_instruction_operand(operand_visitor);
}
if (parent->code->uninitialized_p(compiled))
return;
auto update_code_block_refs = [&](instruction_operand op){
relocation_type type = op.rel_type();
if (type == RT_ENTRY_POINT ||
type == RT_ENTRY_POINT_PIC ||
type == RT_ENTRY_POINT_PIC_TAIL)
op.store_code_block(fixup.fixup_code(op.load_code_block()));
};
compiled->each_instruction_operand(update_code_block_refs);
}
template <typename Fixup>
@ -500,7 +477,6 @@ template <typename Fixup>
void slot_visitor<Fixup>::visit_mark_stack(std::vector<cell>* mark_stack) {
while (!mark_stack->empty()) {
cell ptr = mark_stack->back();
// TJaba
mark_stack->pop_back();
if (ptr & 1) {