dart::ObjectPoolDeserializationCluster Class Reference

Inheritance diagram for dart::ObjectPoolDeserializationCluster:

Public Member Functions
	ObjectPoolDeserializationCluster ()
	~ObjectPoolDeserializationCluster ()
void	ReadAlloc (Deserializer *d) override
void	ReadFill (Deserializer *d_) override
void	PostLoad (Deserializer *d, const Array &refs) override
Public Member Functions inherited from dart::DeserializationCluster
	DeserializationCluster (const char *name, bool is_canonical=false, bool is_immutable=false)
virtual	~DeserializationCluster ()
virtual void	ReadAlloc (Deserializer *deserializer)=0
virtual void	ReadFill (Deserializer *deserializer)=0
virtual void	PostLoad (Deserializer *deserializer, const Array &refs)
const char *	name () const
bool	is_canonical () 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
Protected Member Functions inherited from dart::DeserializationCluster
void	ReadAllocFixedSize (Deserializer *deserializer, intptr_t instance_size)
Protected Attributes inherited from dart::DeserializationCluster
const char *const	name_
const bool	is_canonical_
const bool	is_immutable_
intptr_t	start_index_
intptr_t	stop_index_

Detailed Description

Definition at line 3234 of file app_snapshot.cc.

Constructor & Destructor Documentation

ObjectPoolDeserializationCluster()

dart::ObjectPoolDeserializationCluster::ObjectPoolDeserializationCluster ( )

inline

Definition at line 3236 of file app_snapshot.cc.

: DeserializationCluster("ObjectPool") {}

~ObjectPoolDeserializationCluster()

dart::ObjectPoolDeserializationCluster::~ObjectPoolDeserializationCluster ( )

inline

Definition at line 3237 of file app_snapshot.cc.

{}

Member Function Documentation

PostLoad()

void dart::ObjectPoolDeserializationCluster::PostLoad ( Deserializer *  d, const Array &  refs  )

inlineoverridevirtual

Reimplemented from dart::DeserializationCluster.

Definition at line 3317 of file app_snapshot.cc.

                                                             {
#if defined(DART_PRECOMPILED_RUNTIME) &&                                       \
    (!defined(PRODUCT) || defined(FORCE_INCLUDE_DISASSEMBLER))
    if (FLAG_disassemble) {
      ObjectPool& pool = ObjectPool::Handle(
          d->isolate_group()->object_store()->global_object_pool());
      THR_Print("Global object pool:\n");
      pool.DebugPrint();
    }
#endif
  }

ReadAlloc()

void dart::ObjectPoolDeserializationCluster::ReadAlloc ( Deserializer *  d )

inlineoverridevirtual

Implements dart::DeserializationCluster.

Definition at line 3239 of file app_snapshot.cc.

                                           {
    start_index_ = d->next_index();
    const intptr_t count = d->ReadUnsigned();
    for (intptr_t i = 0; i < count; i++) {
      const intptr_t length = d->ReadUnsigned();
      d->AssignRef(d->Allocate(ObjectPool::InstanceSize(length)));
    }
    stop_index_ = d->next_index();
  }

ReadFill()

void dart::ObjectPoolDeserializationCluster::ReadFill ( Deserializer *  d_ )

inlineoverridevirtual

Implements dart::DeserializationCluster.

Definition at line 3249 of file app_snapshot.cc.

                                           {
    Deserializer::Local d(d_);
 
    ASSERT(!is_canonical());  // Never canonical.
    fill_position_ = d.Position();
#if defined(DART_PRECOMPILED_RUNTIME)
    const uint8_t immediate_bits = ObjectPool::EncodeBits(
        ObjectPool::EntryType::kImmediate, ObjectPool::Patchability::kPatchable,
        ObjectPool::SnapshotBehavior::kSnapshotable);
    uword switchable_call_miss_entry_point =
        StubCode::SwitchableCallMiss().MonomorphicEntryPoint();
#endif  // defined(DART_PRECOMPILED_RUNTIME)
 
    for (intptr_t id = start_index_, n = stop_index_; id < n; id++) {
      const intptr_t length = d.ReadUnsigned();
      ObjectPoolPtr pool = static_cast<ObjectPoolPtr>(d.Ref(id));
      Deserializer::InitializeHeader(pool, kObjectPoolCid,
                                     ObjectPool::InstanceSize(length));
      pool->untag()->length_ = length;
      for (intptr_t j = 0; j < length; j++) {
        const uint8_t entry_bits = d.Read<uint8_t>();
        pool->untag()->entry_bits()[j] = entry_bits;
        UntaggedObjectPool::Entry& entry = pool->untag()->data()[j];
        const auto snapshot_behavior =
            ObjectPool::SnapshotBehaviorBits::decode(entry_bits);
        ASSERT(snapshot_behavior !=
               ObjectPool::SnapshotBehavior::kNotSnapshotable);
        switch (snapshot_behavior) {
          case ObjectPool::SnapshotBehavior::kSnapshotable:
            // Handled below.
            break;
          case ObjectPool::SnapshotBehavior::kResetToBootstrapNative:
            entry.raw_obj_ = StubCode::CallBootstrapNative().ptr();
            continue;
#if defined(DART_PRECOMPILED_RUNTIME)
          case ObjectPool::SnapshotBehavior::
              kResetToSwitchableCallMissEntryPoint:
            pool->untag()->entry_bits()[j] = immediate_bits;
            entry.raw_value_ =
                static_cast<intptr_t>(switchable_call_miss_entry_point);
            continue;
#endif  // defined(DART_PRECOMPILED_RUNTIME)
          case ObjectPool::SnapshotBehavior::kSetToZero:
            entry.raw_value_ = 0;
            continue;
          default:
            FATAL("Unexpected snapshot behavior: %d\n", snapshot_behavior);
        }
        switch (ObjectPool::TypeBits::decode(entry_bits)) {
          case ObjectPool::EntryType::kTaggedObject:
            entry.raw_obj_ = d.ReadRef();
            break;
          case ObjectPool::EntryType::kImmediate:
            entry.raw_value_ = d.Read<intptr_t>();
            break;
          case ObjectPool::EntryType::kNativeFunction: {
            // Read nothing. Initialize with the lazy link entry.
            uword new_entry = NativeEntry::LinkNativeCallEntry();
            entry.raw_value_ = static_cast<intptr_t>(new_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