Start isolates in a separate thread.

runtime/vm/isolate.cc

 // Copyright (c) 2013, 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.
 
 #include "vm/isolate.h"
 
 #include "include/dart_api.h"
 #include "include/dart_native_api.h"
 #include "platform/assert.h"
 #include "platform/json.h"
@@ skipping 2389 matching lines @@
 
 static const char* NewConstChar(const char* chars) {
   size_t len = strlen(chars);
   char* mem = new char[len + 1];
   memmove(mem, chars, len + 1);
   return mem;
 }
 
 
 IsolateSpawnState::IsolateSpawnState(Dart_Port parent_port,
+                                     Dart_Port origin_id,
+                                     void* init_data,
                                      const Function& func,
                                      const Instance& message,
                                      bool paused,
                                      bool errors_are_fatal,
                                      Dart_Port on_exit_port,
                                      Dart_Port on_error_port)
     : isolate_(NULL),
       parent_port_(parent_port),
+      origin_id_(origin_id),
+      init_data_(init_data),
       on_exit_port_(on_exit_port),
       on_error_port_(on_error_port),
       script_url_(NULL),
       package_root_(NULL),
       package_map_(NULL),
       library_url_(NULL),
       class_name_(NULL),
       function_name_(NULL),
       serialized_args_(NULL),
       serialized_args_len_(0),
@@ skipping 17 matching lines @@
   SerializeObject(message,
                   &serialized_message_,
                   &serialized_message_len_,
                   can_send_any_object);
   // Inherit flags from spawning isolate.
   isolate_flags()->CopyFrom(Isolate::Current()->flags());
 }
 
 
 IsolateSpawnState::IsolateSpawnState(Dart_Port parent_port,
+                                     void* init_data,
                                      const char* script_url,
                                      const char* package_root,
                                      const char** package_map,
                                      const Instance& args,
                                      const Instance& message,
                                      bool paused,
                                      bool errors_are_fatal,
                                      Dart_Port on_exit_port,
                                      Dart_Port on_error_port)
     : isolate_(NULL),
       parent_port_(parent_port),
+      origin_id_(ILLEGAL_PORT),
+      init_data_(init_data),
       on_exit_port_(on_exit_port),
       on_error_port_(on_error_port),
       script_url_(script_url),
       package_root_(package_root),
       package_map_(package_map),
       library_url_(NULL),
       class_name_(NULL),
       function_name_(NULL),
       serialized_args_(NULL),
       serialized_args_len_(0),
@@ skipping 110 matching lines @@
 }
 
 
 RawInstance* IsolateSpawnState::BuildMessage(Thread* thread) {
   return DeserializeObject(thread,
                            serialized_message_, serialized_message_len_);
 }
 
 
 }  // namespace dart