Accompany debugger commands with senders data

src/debug-agent.cc

 // Copyright 2009 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 17 matching lines @@
 
 #include "v8.h"
 #include "debug-agent.h"
 
 #ifdef ENABLE_DEBUGGER_SUPPORT
 namespace v8 { namespace internal {
 
 // Public V8 debugger API message handler function. This function just delegates
 // to the debugger agent through it's data parameter.
 void DebuggerAgentMessageHandler(const uint16_t* message, int length,
-                                 void *data) {
-  reinterpret_cast<DebuggerAgent*>(data)->DebuggerMessage(message, length);
+                                 v8::Debug::ClientData* client_data) {
+  DebuggerAgent::instance_->DebuggerMessage(message, length);
 }
 
+// static
+DebuggerAgent* DebuggerAgent::instance_ = NULL;
 
 // Debugger agent main thread.
 void DebuggerAgent::Run() {
   const int kOneSecondInMicros = 1000000;
 
   // Allow this socket to reuse port even if still in TIME_WAIT.
   server_->SetReuseAddress(true);
 
   // First bind the socket to the requested port.
   bool bound = false;
@@ skipping 354 matching lines @@
       return total_received;
     }
     total_received += received;
   }
   return total_received;
 }
 
 } }  // namespace v8::internal
 
 #endif  // ENABLE_DEBUGGER_SUPPORT