Mojo: Implement passing of shared buffers across processes on POSIX.

mojo/system/dispatcher.cc

 // 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.
 
 #include "mojo/system/dispatcher.h"
 
 #include "base/logging.h"
 #include "mojo/system/constants.h"
 #include "mojo/system/message_pipe_dispatcher.h"
 #include "mojo/system/platform_handle_dispatcher.h"
+#include "mojo/system/shared_buffer_dispatcher.h"
 
 namespace mojo {
 namespace system {
 
 namespace test {
 
 // TODO(vtl): Maybe this should be defined in a test-only file instead.
 DispatcherTransport DispatcherTryStartTransport(
     Dispatcher* dispatcher) {
   return Dispatcher::HandleTableAccess::TryStartTransport(dispatcher);
@@ skipping 50 matching lines @@
     embedder::PlatformHandleVector* platform_handles) {
   switch (static_cast<int32_t>(type)) {
     case kTypeUnknown:
       DVLOG(2) << "Deserializing invalid handle";
       return scoped_refptr<Dispatcher>();
     case kTypeMessagePipe:
       return scoped_refptr<Dispatcher>(
           MessagePipeDispatcher::Deserialize(channel, source, size));
     case kTypeDataPipeProducer:
     case kTypeDataPipeConsumer:
-    case kTypeSharedBuffer:
       // TODO(vtl): Implement.
       LOG(WARNING) << "Deserialization of dispatcher type " << type
                    << " not supported";
       return scoped_refptr<Dispatcher>();
+    case kTypeSharedBuffer:
+      return scoped_refptr<Dispatcher>(
+          SharedBufferDispatcher::Deserialize(channel, source, size,
+                                              platform_handles));
     case kTypePlatformHandle:
       return scoped_refptr<Dispatcher>(
           PlatformHandleDispatcher::Deserialize(channel, source, size,
                                                 platform_handles));
   }
   LOG(WARNING) << "Unknown dispatcher type " << type;
   return scoped_refptr<Dispatcher>();
 }
 
 MojoResult Dispatcher::Close() {
@@ skipping 354 matching lines @@
 // DispatcherTransport ---------------------------------------------------------
 
 void DispatcherTransport::End() {
   DCHECK(dispatcher_);
   dispatcher_->lock_.Release();
   dispatcher_ = NULL;
 }
 
 }  // namespace system
 }  // namespace mojo