Upstream version 11.39.266.0

[platform/framework/web/crosswalk.git] / src / mojo / system / proxy_message_pipe_endpoint.h

diff --git a/src/mojo/system/proxy_message_pipe_endpoint.h b/src/mojo/system/proxy_message_pipe_endpoint.h
index 6f9068e..b6f8db4 100644 (file)
--- a/src/mojo/system/proxy_message_pipe_endpoint.h
+++ b/src/mojo/system/proxy_message_pipe_endpoint.h
@@ -5,14 +5,8 @@
 #ifndef MOJO_SYSTEM_PROXY_MESSAGE_PIPE_ENDPOINT_H_
 #define MOJO_SYSTEM_PROXY_MESSAGE_PIPE_ENDPOINT_H_
 
-#include <stdint.h>
-
-#include <deque>
-
-#include "base/basictypes.h"
-#include "base/compiler_specific.h"
+#include "base/macros.h"
 #include "base/memory/ref_counted.h"
-#include "mojo/public/system/core.h"
 #include "mojo/system/message_in_transit.h"
 #include "mojo/system/message_pipe_endpoint.h"
 #include "mojo/system/system_impl_export.h"
@@ -20,76 +14,32 @@
 namespace mojo {
 namespace system {
 
-class Channel;
+class ChannelEndpoint;
+class LocalMessagePipeEndpoint;
+class MessagePipe;
 
-// A |ProxyMessagePipeEndpoint| connects an end of a |MessagePipe| to a
-// |Channel|, over which it transmits and receives data (to/from another
-// |ProxyMessagePipeEndpoint|). So a |MessagePipe| with one endpoint local and
-// the other endpoint remote consists of a |LocalMessagePipeEndpoint| and a
+// A |ProxyMessagePipeEndpoint| is an endpoint which delegates everything to a
+// |ChannelEndpoint|, which may be co-owned by a |Channel|. Like any
+// |MessagePipeEndpoint|, a |ProxyMessagePipeEndpoint| is owned by a
+// |MessagePipe|.
+//
+// For example, a |MessagePipe| with one endpoint local and the other endpoint
+// remote consists of a |LocalMessagePipeEndpoint| and a
 // |ProxyMessagePipeEndpoint|, with only the local endpoint being accessible via
 // a |MessagePipeDispatcher|.
-//
-// Like any |MessagePipeEndpoint|, a |ProxyMessagePipeEndpoint| is owned by a
-// |MessagePipe|.
-//  - A |ProxyMessagePipeEndpoint| starts out *detached*, i.e., not associated
-//    to any |Channel|. When *attached*, it gets a reference to a |Channel| and
-//    is assigned a local ID. A |ProxyMessagePipeEndpoint| must be detached
-//    before destruction; this is done inside |Close()|.
-//  - When attached, a |ProxyMessagePipeEndpoint| starts out not running. When
-//    run, it gets a remote ID.
 class MOJO_SYSTEM_IMPL_EXPORT ProxyMessagePipeEndpoint
     : public MessagePipeEndpoint {
  public:
-  ProxyMessagePipeEndpoint();
+  explicit ProxyMessagePipeEndpoint(ChannelEndpoint* channel_endpoint);
   virtual ~ProxyMessagePipeEndpoint();
 
   // |MessagePipeEndpoint| implementation:
-  virtual void Close() OVERRIDE;
-  virtual void OnPeerClose() OVERRIDE;
-  virtual MojoResult CanEnqueueMessage(
-      const MessageInTransit* message,
-      const std::vector<Dispatcher*>* dispatchers) OVERRIDE;
-  virtual void EnqueueMessage(
-      MessageInTransit* message,
-      std::vector<scoped_refptr<Dispatcher> >* dispatchers) OVERRIDE;
-  virtual void Attach(scoped_refptr<Channel> channel,
-                      MessageInTransit::EndpointId local_id) OVERRIDE;
-  virtual void Run(MessageInTransit::EndpointId remote_id) OVERRIDE;
+  virtual Type GetType() const OVERRIDE;
+  virtual bool OnPeerClose() OVERRIDE;
+  virtual void EnqueueMessage(scoped_ptr<MessageInTransit> message) OVERRIDE;
 
  private:
-  bool is_attached() const {
-    return !!channel_.get();
-  }
-
-  bool is_running() const {
-    return remote_id_ != MessageInTransit::kInvalidEndpointId;
-  }
-
-#ifdef NDEBUG
-  void AssertConsistentState() const {}
-#else
-  void AssertConsistentState() const;
-#endif
-
-  // This should only be set if we're attached.
-  scoped_refptr<Channel> channel_;
-
-  // |local_id_| should be set to something other than
-  // |MessageInTransit::kInvalidEndpointId| when we're attached.
-  MessageInTransit::EndpointId local_id_;
-
-  // |remote_id_| being set to anything other than
-  // |MessageInTransit::kInvalidEndpointId| indicates that we're "running",
-  // i.e., actively able to send messages. We should only ever be running if
-  // we're attached.
-  MessageInTransit::EndpointId remote_id_;
-
-  bool is_open_;
-  bool is_peer_open_;
-
-  // This queue is only used while we're detached, to store messages while we're
-  // not ready to send them yet.
-  std::deque<MessageInTransit*> paused_message_queue_;
+  scoped_refptr<ChannelEndpoint> channel_endpoint_;
 
   DISALLOW_COPY_AND_ASSIGN(ProxyMessagePipeEndpoint);
 };