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// Copyright 2016 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_CORE_PORTS_MESSAGE_FILTER_H_
#define MOJO_CORE_PORTS_MESSAGE_FILTER_H_
namespace mojo {
namespace core {
namespace ports {
class UserMessageEvent;
// An interface which can be implemented to user message events according to
// arbitrary policy.
class MessageFilter {
public:
virtual ~MessageFilter() = default;
// Returns true if |message| should be accepted by whomever is applying this
// filter. See MessageQueue::GetNextMessage(), for example.
virtual bool Match(const UserMessageEvent& message) = 0;
};
} // namespace ports
} // namespace core
} // namespace mojo
#endif // MOJO_CORE_PORTS_MESSAGE_FILTER_H_
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