OOB messages and general message refactor.

runtime/vm/port.h

 // Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 #ifndef VM_PORT_H_
 #define VM_PORT_H_
 
 #include "include/dart_api.h"
 #include "vm/allocation.h"
 #include "vm/globals.h"
 
 namespace dart {
 
 class Isolate;
+class Message;
 class Mutex;
 class PortMapTestPeer;
 
 class PortMap: public AllStatic {
  public:
   // Allocate a port in the current isolate and return its VM-global id.
   static Dart_Port CreatePort();
 
   // Indicates that a port has had a ReceivePort created for it at the
   // dart language level.  The port remains live until it is closed.
   static void SetLive(Dart_Port id);
 
   // Close the port with id. All pending messages will be dropped.
   static void ClosePort(Dart_Port id);
 
   // Close all the ports of the current isolate.
   static void ClosePorts();
 
   // Enqueues the message in the port with id. Returns false if the port is not
   // active any longer.
   //
-  // Claims ownership of the memory pointed to by 'message' and will
-  // ensure that free(message) is called.
-  static bool PostMessage(Dart_Port dest_port,
-                          Dart_Port reply_port,
-                          Dart_Message message);
+  // Claims ownership of 'message'.
+  static bool PostMessage(Message* message);
 
   static void InitOnce();
 
  private:
   friend class dart::PortMapTestPeer;
 
   // Mapping between port numbers and isolates.
   // Free entries have id == 0 and isolate == NULL. Deleted entries have id == 0
   // and isolate == deleted_entry_.
   typedef struct {
@@ skipping 22 matching lines @@
   static intptr_t capacity_;
   static intptr_t used_;
   static intptr_t deleted_;
 
   static Dart_Port next_port_;
 };
 
 }  // namespace dart
 
 #endif  // VM_PORT_H_