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// Copyright 2015 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef MOJO_PUBLIC_CPP_BINDINGS_ASSOCIATED_GROUP_H_
#define MOJO_PUBLIC_CPP_BINDINGS_ASSOCIATED_GROUP_H_
#include "base/callback.h"
#include "base/memory/ref_counted.h"
#include "mojo/public/cpp/bindings/bindings_export.h"
#include "mojo/public/cpp/bindings/scoped_interface_endpoint_handle.h"
namespace mojo {
class AssociatedGroupController;
// AssociatedGroup refers to all the interface endpoints running at one end of a
// message pipe.
// It is thread safe and cheap to make copies.
class MOJO_CPP_BINDINGS_EXPORT AssociatedGroup {
public:
AssociatedGroup();
explicit AssociatedGroup(scoped_refptr<AssociatedGroupController> controller);
explicit AssociatedGroup(const ScopedInterfaceEndpointHandle& handle);
AssociatedGroup(const AssociatedGroup& other);
~AssociatedGroup();
AssociatedGroup& operator=(const AssociatedGroup& other);
// The return value of this getter if this object is initialized with a
// ScopedInterfaceEndpointHandle:
// - If the handle is invalid, the return value will always be null.
// - If the handle is valid and non-pending, the return value will be
// non-null and remain unchanged even if the handle is later reset.
// - If the handle is pending asssociation, the return value will initially
// be null, change to non-null when/if the handle is associated, and
// remain unchanged ever since.
AssociatedGroupController* GetController();
private:
base::Callback<AssociatedGroupController*()> controller_getter_;
scoped_refptr<AssociatedGroupController> controller_;
};
} // namespace mojo
#endif // MOJO_PUBLIC_CPP_BINDINGS_ASSOCIATED_GROUP_H_
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