1 // Copyright 2014 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
5 #ifndef MOJO_PUBLIC_BINDINGS_LIB_SHARED_PTR_H_
6 #define MOJO_PUBLIC_BINDINGS_LIB_SHARED_PTR_H_
8 #include "mojo/public/bindings/lib/shared_data.h"
13 // Used to manage a heap-allocated instance of P that can be shared via
14 // reference counting. When the last reference is dropped, the instance is
21 explicit SharedPtr(P* ptr) {
22 impl_.mutable_value()->ptr = ptr;
25 // Default copy-constructor and assignment operator are OK.
28 return impl_.value().ptr;
30 const P* get() const {
31 return impl_.value().ptr;
34 P* operator->() { return get(); }
35 const P* operator->() const { return get(); }
48 Impl(P* ptr) : ptr(ptr) {
54 MOJO_DISALLOW_COPY_AND_ASSIGN(Impl);
57 SharedData<Impl> impl_;
61 } // namespace internal
63 #endif // MOJO_PUBLIC_BINDINGS_LIB_SHARED_PTR_H_