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// Copyright 2013 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_EDK_SYSTEM_LOCAL_MESSAGE_PIPE_ENDPOINT_H_
#define MOJO_EDK_SYSTEM_LOCAL_MESSAGE_PIPE_ENDPOINT_H_
#include "base/compiler_specific.h"
#include "base/macros.h"
#include "mojo/edk/system/awakable_list.h"
#include "mojo/edk/system/handle_signals_state.h"
#include "mojo/edk/system/message_in_transit_queue.h"
#include "mojo/edk/system/message_pipe_endpoint.h"
#include "mojo/edk/system/system_impl_export.h"
namespace mojo {
namespace system {
class MOJO_SYSTEM_IMPL_EXPORT LocalMessagePipeEndpoint
: public MessagePipeEndpoint {
public:
// If |message_queue| is non-null, its contents will be taken as the queue of
// (already-received) messages.
explicit LocalMessagePipeEndpoint(
MessageInTransitQueue* message_queue = nullptr);
~LocalMessagePipeEndpoint() override;
// |MessagePipeEndpoint| implementation:
Type GetType() const override;
bool OnPeerClose() override;
void EnqueueMessage(scoped_ptr<MessageInTransit> message) override;
// There's a dispatcher for |LocalMessagePipeEndpoint|s, so we have to
// implement/override these:
void Close() override;
void CancelAllAwakables() override;
MojoResult ReadMessage(UserPointer<void> bytes,
UserPointer<uint32_t> num_bytes,
DispatcherVector* dispatchers,
uint32_t* num_dispatchers,
MojoReadMessageFlags flags) override;
HandleSignalsState GetHandleSignalsState() const override;
MojoResult AddAwakable(Awakable* awakable,
MojoHandleSignals signals,
uint32_t context,
HandleSignalsState* signals_state) override;
void RemoveAwakable(Awakable* awakable,
HandleSignalsState* signals_state) override;
// This is only to be used by |MessagePipe|:
MessageInTransitQueue* message_queue() { return &message_queue_; }
private:
bool is_open_;
bool is_peer_open_;
// Queue of incoming messages.
MessageInTransitQueue message_queue_;
AwakableList awakable_list_;
DISALLOW_COPY_AND_ASSIGN(LocalMessagePipeEndpoint);
};
} // namespace system
} // namespace mojo
#endif // MOJO_EDK_SYSTEM_LOCAL_MESSAGE_PIPE_ENDPOINT_H_
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