dart::ObjectPoolSerializationCluster Class Reference

Inheritance diagram for dart::ObjectPoolSerializationCluster:

Public Member Functions
	ObjectPoolSerializationCluster ()
	~ObjectPoolSerializationCluster ()
void	Trace (Serializer *s, ObjectPtr object)
void	WriteAlloc (Serializer *s)
void	WriteFill (Serializer *s)
Public Member Functions inherited from dart::SerializationCluster
	SerializationCluster (const char *name, intptr_t cid, intptr_t target_instance_size=kSizeVaries, bool is_canonical=false)
virtual	~SerializationCluster ()
virtual void	Trace (Serializer *serializer, ObjectPtr object)=0
virtual void	WriteAlloc (Serializer *serializer)=0
virtual void	WriteFill (Serializer *serializer)=0
void	WriteAndMeasureAlloc (Serializer *serializer)
void	WriteAndMeasureFill (Serializer *serializer)
const char *	name () const
intptr_t	cid () const
bool	is_canonical () const
bool	is_immutable () const
intptr_t	size () const
intptr_t	num_objects () const
intptr_t	target_memory_size () const
Public Member Functions inherited from dart::ZoneAllocated
	ZoneAllocated ()
void *	operator new (size_t size)
void *	operator new (size_t size, Zone *zone)
void	operator delete (void *pointer)

Additional Inherited Members
Static Public Attributes inherited from dart::SerializationCluster
static constexpr intptr_t	kSizeVaries = -1
Protected Attributes inherited from dart::SerializationCluster
const char *const	name_
const intptr_t	cid_
const intptr_t	target_instance_size_
const bool	is_canonical_
const bool	is_immutable_
intptr_t	size_ = 0
intptr_t	num_objects_ = 0
intptr_t	target_memory_size_ = 0

Detailed Description

Definition at line 3146 of file app_snapshot.cc.

Constructor & Destructor Documentation

ObjectPoolSerializationCluster()

dart::ObjectPoolSerializationCluster::ObjectPoolSerializationCluster ( )

inline

Definition at line 3148 of file app_snapshot.cc.

      : SerializationCluster("ObjectPool", kObjectPoolCid) {}

~ObjectPoolSerializationCluster()

dart::ObjectPoolSerializationCluster::~ObjectPoolSerializationCluster ( )

inline

Definition at line 3150 of file app_snapshot.cc.

{}

Member Function Documentation

Trace()

void dart::ObjectPoolSerializationCluster::Trace ( Serializer *  s, ObjectPtr  object  )

inlinevirtual

Implements dart::SerializationCluster.

Definition at line 3152 of file app_snapshot.cc.

                                              {
    ObjectPoolPtr pool = ObjectPool::RawCast(object);
    objects_.Add(pool);
 
    if (s->kind() != Snapshot::kFullAOT) {
      const intptr_t length = pool->untag()->length_;
      uint8_t* entry_bits = pool->untag()->entry_bits();
      for (intptr_t i = 0; i < length; i++) {
        auto entry_type = ObjectPool::TypeBits::decode(entry_bits[i]);
        if (entry_type == ObjectPool::EntryType::kTaggedObject) {
          s->Push(pool->untag()->data()[i].raw_obj_);
        }
      }
    }
  }

WriteAlloc()

void dart::ObjectPoolSerializationCluster::WriteAlloc ( Serializer *  s )

inlinevirtual

Implements dart::SerializationCluster.

Definition at line 3168 of file app_snapshot.cc.

                                 {
    const intptr_t count = objects_.length();
    s->WriteUnsigned(count);
    for (intptr_t i = 0; i < count; i++) {
      ObjectPoolPtr pool = objects_[i];
      s->AssignRef(pool);
      AutoTraceObject(pool);
      const intptr_t length = pool->untag()->length_;
      s->WriteUnsigned(length);
      target_memory_size_ += compiler::target::ObjectPool::InstanceSize(length);
    }
  }

WriteFill()

void dart::ObjectPoolSerializationCluster::WriteFill ( Serializer *  s )

inlinevirtual

Implements dart::SerializationCluster.

Definition at line 3181 of file app_snapshot.cc.

                                {
    bool weak = s->kind() == Snapshot::kFullAOT;
 
    const intptr_t count = objects_.length();
    for (intptr_t i = 0; i < count; i++) {
      ObjectPoolPtr pool = objects_[i];
      AutoTraceObject(pool);
      const intptr_t length = pool->untag()->length_;
      s->WriteUnsigned(length);
      uint8_t* entry_bits = pool->untag()->entry_bits();
      for (intptr_t j = 0; j < length; j++) {
        UntaggedObjectPool::Entry& entry = pool->untag()->data()[j];
        uint8_t bits = entry_bits[j];
        ObjectPool::EntryType type = ObjectPool::TypeBits::decode(bits);
        auto snapshot_behavior = ObjectPool::SnapshotBehaviorBits::decode(bits);
        ASSERT(snapshot_behavior !=
               ObjectPool::SnapshotBehavior::kNotSnapshotable);
        s->Write<uint8_t>(bits);
        if (snapshot_behavior != ObjectPool::SnapshotBehavior::kSnapshotable) {
          // The deserializer will reset this to a specific value, no need to
          // write anything.
          continue;
        }
        switch (type) {
          case ObjectPool::EntryType::kTaggedObject: {
            if (weak && !s->HasRef(entry.raw_obj_)) {
              // Any value will do, but null has the shortest id.
              s->WriteElementRef(Object::null(), j);
            } else {
              s->WriteElementRef(entry.raw_obj_, j);
            }
            break;
          }
          case ObjectPool::EntryType::kImmediate: {
            s->Write<intptr_t>(entry.raw_value_);
            break;
          }
          case ObjectPool::EntryType::kNativeFunction: {
            // Write nothing. Will initialize with the lazy link entry.
            break;
          }
          default:
            UNREACHABLE();
        }
      }
    }
  }

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The documentation for this class was generated from the following file:

• third_party/dart-lang/sdk/runtime/vm/app_snapshot.cc