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| 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. | |
| 4 | |
| 5 #ifndef MOJO_EDK_SYSTEM_INCOMING_ENDPOINT_H_ | |
| 6 #define MOJO_EDK_SYSTEM_INCOMING_ENDPOINT_H_ | |
| 7 | |
| 8 #include "base/macros.h" | |
| 9 #include "base/memory/ref_counted.h" | |
| 10 #include "base/synchronization/lock.h" | |
| 11 #include "mojo/edk/system/channel_endpoint_client.h" | |
| 12 #include "mojo/edk/system/message_in_transit_queue.h" | |
| 13 #include "mojo/edk/system/system_impl_export.h" | |
| 14 | |
| 15 namespace mojo { | |
| 16 namespace system { | |
| 17 | |
| 18 class ChannelEndpoint; | |
| 19 class MessagePipe; | |
| 20 | |
| 21 // This is a simple |ChannelEndpointClient| that only receives messages. It's | |
| 22 // used for endpoints that are "received" by |Channel|, but not yet turned into | |
| 23 // |MessagePipe|s. | |
| 24 class MOJO_SYSTEM_IMPL_EXPORT IncomingEndpoint : public ChannelEndpointClient { | |
| 25 public: | |
| 26 IncomingEndpoint(); | |
| 27 | |
| 28 // Must be called before any other method. | |
| 29 scoped_refptr<ChannelEndpoint> Init(); | |
| 30 | |
| 31 scoped_refptr<MessagePipe> ConvertToMessagePipe(); | |
| 32 | |
| 33 // Must be called before destroying this object if |ConvertToMessagePipe()| | |
| 34 // wasn't called (but |Init()| was). | |
| 35 void Close(); | |
| 36 | |
| 37 // |ChannelEndpointClient| methods: | |
| 38 bool OnReadMessage(unsigned port, MessageInTransit* message) override; | |
| 39 void OnDetachFromChannel(unsigned port) override; | |
| 40 | |
| 41 private: | |
| 42 ~IncomingEndpoint() override; | |
| 43 | |
| 44 base::Lock lock_; // Protects the following members. | |
| 45 scoped_refptr<ChannelEndpoint> endpoint_; | |
| 46 MessageInTransitQueue message_queue_; | |
| 47 | |
| 48 DISALLOW_COPY_AND_ASSIGN(IncomingEndpoint); | |
| 49 }; | |
| 50 | |
| 51 } // namespace system | |
| 52 } // namespace mojo | |
| 53 | |
| 54 #endif // MOJO_EDK_SYSTEM_INCOMING_ENDPOINT_H_ | |
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