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