dart::PersistentHandles Class Reference

#include <dart_api_state.h>

Inheritance diagram for dart::PersistentHandles:

Public Member Functions
	PersistentHandles ()
	~PersistentHandles ()
PersistentHandle *	free_list () const
void	set_free_list (PersistentHandle *value)
void	VisitObjectPointers (ObjectPointerVisitor *visitor)
void	Visit (HandleVisitor *visitor)
PersistentHandle *	AllocateHandle ()
void	FreeHandle (PersistentHandle *handle)
bool	IsValidHandle (Dart_PersistentHandle object) const
bool	IsFreeHandle (Dart_PersistentHandle object) const
int	CountHandles () const

Detailed Description

Definition at line 427 of file dart_api_state.h.

Constructor & Destructor Documentation

PersistentHandles()

dart::PersistentHandles::PersistentHandles ( )

inline

Definition at line 431 of file dart_api_state.h.

      : Handles<kPersistentHandleSizeInWords,
                kPersistentHandlesPerChunk,
                kOffsetOfRawPtrInPersistentHandle>(),
        free_list_(nullptr) {
    if (FLAG_trace_handles) {
      OS::PrintErr("*** Starting a new Persistent handle block 0x%" Px "\n",
                   reinterpret_cast<intptr_t>(this));
    }
  }

~PersistentHandles()

dart::PersistentHandles::~PersistentHandles ( )

inline

Definition at line 441 of file dart_api_state.h.

                       {
    free_list_ = nullptr;
    if (FLAG_trace_handles) {
      OS::PrintErr("***   Handle Counts for 0x(%" Px "):Scoped = %d\n",
                   reinterpret_cast<intptr_t>(this), CountHandles());
      OS::PrintErr("*** Deleting Persistent handle block 0x%" Px "\n",
                   reinterpret_cast<intptr_t>(this));
    }
  }

Member Function Documentation

AllocateHandle()

PersistentHandle * dart::PersistentHandles::AllocateHandle ( )

inline

Definition at line 471 of file dart_api_state.h.

                                     {
    PersistentHandle* handle;
    if (free_list_ != nullptr) {
      handle = free_list_;
      free_list_ = handle->Next();
    } else {
      handle = reinterpret_cast<PersistentHandle*>(AllocateScopedHandle());
    }
    handle->set_ptr(Object::null());
    return handle;
  }

CountHandles()

int dart::PersistentHandles::CountHandles ( ) const

inline

Definition at line 505 of file dart_api_state.h.

{ return CountScopedHandles(); }

free_list()

PersistentHandle * dart::PersistentHandles::free_list ( ) const

inline

Definition at line 452 of file dart_api_state.h.

{ return free_list_; }

FreeHandle()

void dart::PersistentHandles::FreeHandle ( PersistentHandle *  handle )

inline

Definition at line 483 of file dart_api_state.h.

                                            {
    handle->FreeHandle(free_list());
    set_free_list(handle);
  }

IsFreeHandle()

bool dart::PersistentHandles::IsFreeHandle ( Dart_PersistentHandle  object ) const

inline

Definition at line 493 of file dart_api_state.h.

                                                        {
    PersistentHandle* handle = free_list_;
    while (handle != nullptr) {
      if (handle == reinterpret_cast<PersistentHandle*>(object)) {
        return true;
      }
      handle = handle->Next();
    }
    return false;
  }

IsValidHandle()

bool dart::PersistentHandles::IsValidHandle ( Dart_PersistentHandle  object ) const

inline

Definition at line 489 of file dart_api_state.h.

                                                         {
    return IsValidScopedHandle(reinterpret_cast<uword>(object));
  }

set_free_list()

void dart::PersistentHandles::set_free_list ( PersistentHandle *  value )

inline

Definition at line 453 of file dart_api_state.h.

{ free_list_ = value; }

Visit()

void dart::PersistentHandles::Visit ( HandleVisitor *  visitor )

inline

Definition at line 464 of file dart_api_state.h.

                                     {
    Handles<kPersistentHandleSizeInWords, kPersistentHandlesPerChunk,
            kOffsetOfRawPtrInPersistentHandle>::Visit(visitor);
  }

VisitObjectPointers()

void dart::PersistentHandles::VisitObjectPointers ( ObjectPointerVisitor *  visitor )

inline

Definition at line 456 of file dart_api_state.h.

                                                          {
    visitor->set_gc_root_type("persistent handle");
    Handles<kPersistentHandleSizeInWords, kPersistentHandlesPerChunk,
            kOffsetOfRawPtrInPersistentHandle>::VisitObjectPointers(visitor);
    visitor->clear_gc_root_type();
  }

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

• third_party/dart-lang/sdk/runtime/vm/dart_api_state.h