NaCl: Allow setting up multiple sockets for subprocess instead of just one

chrome/common/nacl_messages_internal.h

 // Copyright (c) 2009 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 "chrome/common/nacl_types.h"
 #include "ipc/ipc_message_macros.h"
 
 //-----------------------------------------------------------------------------
 // NaClProcess messages
 // These are messages sent from the browser to the NaCl process.
 IPC_BEGIN_MESSAGES(NaClProcess)
   // Tells the NaCl process to start.
-  IPC_MESSAGE_CONTROL2(NaClProcessMsg_Start,
-                       int /* descriptor id */,
-                       nacl::FileDescriptor /* handle value */)
+  IPC_MESSAGE_CONTROL1(NaClProcessMsg_Start,
+                       std::vector<nacl::FileDescriptor> /* sockets */)

[Mark Schneckloth, 2010/07/28 23:09:23]

I'm not sure how IPC_MESSAGE_CONTROL1 is implemented, but should this be a
std::vector<nacl::FileDescriptor>&

The macro uses MakeRefTuple(arg1) so perhaps the "&" is implied?  I don't know
much about Chrome's IPC.

 
   // Tells the NaCl broker to launch a NaCl loader process.
   IPC_MESSAGE_CONTROL1(NaClProcessMsg_LaunchLoaderThroughBroker,
                        std::wstring /* channel ID for the loader */)
 
   // Notify the browser process that the loader was launched successfully.
   IPC_MESSAGE_CONTROL2(NaClProcessMsg_LoaderLaunched,
                        std::wstring,  /* channel ID for the loader */
                        base::ProcessHandle /* loader process handle */)
 
   // Notify the broker that all loader processes have been terminated and it
   // should shutdown.
   IPC_MESSAGE_CONTROL0(NaClProcessMsg_StopBroker)
 IPC_END_MESSAGES(NaClProcess)