- Allow an isolate to be started in paused state.

runtime/lib/isolate.cc

 // Copyright (c) 2012, 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 "platform/assert.h"
 #include "vm/bootstrap_natives.h"
 #include "vm/class_finalizer.h"
 #include "vm/dart.h"
 #include "vm/dart_api_impl.h"
 #include "vm/dart_entry.h"
@@ skipping 194 matching lines @@
   MutexLocker ml(spawned_isolate->mutex());
   spawned_isolate->set_spawn_state(state);
   if (spawned_isolate->is_runnable()) {
     spawned_isolate->Run();
   }
 
   return port.raw();
 }
 
 
-DEFINE_NATIVE_ENTRY(Isolate_spawnFunction, 3) {
+DEFINE_NATIVE_ENTRY(Isolate_spawnFunction, 4) {
   GET_NON_NULL_NATIVE_ARGUMENT(SendPort, port, arguments->NativeArgAt(0));
   GET_NON_NULL_NATIVE_ARGUMENT(Instance, closure, arguments->NativeArgAt(1));
   GET_NON_NULL_NATIVE_ARGUMENT(Instance, message, arguments->NativeArgAt(2));
+  GET_NON_NULL_NATIVE_ARGUMENT(Bool, paused, arguments->NativeArgAt(3));
   if (closure.IsClosure()) {
     Function& func = Function::Handle();
     func = Closure::function(closure);
     if (func.IsImplicitClosureFunction() && func.is_static()) {
 #if defined(DEBUG)
       Context& ctx = Context::Handle();
       ctx = Closure::context(closure);
       ASSERT(ctx.num_variables() == 0);
 #endif
-      return Spawn(isolate, new IsolateSpawnState(port.Id(), func, message));
+      return Spawn(isolate, new IsolateSpawnState(
+          port.Id(), func, message, paused.value()));
     }
   }
   const String& msg = String::Handle(String::New(
       "Isolate.spawn expects to be passed a static or top-level function"));
   Exceptions::ThrowArgumentError(msg);
   return Object::null();
 }
 
 
-DEFINE_NATIVE_ENTRY(Isolate_spawnUri, 5) {
+DEFINE_NATIVE_ENTRY(Isolate_spawnUri, 6) {
   GET_NON_NULL_NATIVE_ARGUMENT(SendPort, port, arguments->NativeArgAt(0));
   GET_NON_NULL_NATIVE_ARGUMENT(String, uri, arguments->NativeArgAt(1));
   GET_NON_NULL_NATIVE_ARGUMENT(Instance, args, arguments->NativeArgAt(2));
   GET_NON_NULL_NATIVE_ARGUMENT(Instance, message, arguments->NativeArgAt(3));
-  GET_NATIVE_ARGUMENT(String, package_root, arguments->NativeArgAt(4));
+  GET_NON_NULL_NATIVE_ARGUMENT(Bool, paused, arguments->NativeArgAt(4));
+  GET_NATIVE_ARGUMENT(String, package_root, arguments->NativeArgAt(5));
 
   // Canonicalize the uri with respect to the current isolate.
   char* error = NULL;
   char* canonical_uri = NULL;
   const Library& root_lib =
       Library::Handle(arguments->isolate()->object_store()->root_library());
   if (!CanonicalizeUri(arguments->isolate(), root_lib, uri,
                        &canonical_uri, &error)) {
     const String& msg = String::Handle(String::New(error));
     ThrowIsolateSpawnException(msg);
   }
 
   char* utf8_package_root = NULL;
   if (!package_root.IsNull()) {
     const intptr_t len = Utf8::Length(package_root);
     Zone* zone = isolate->current_zone();
     utf8_package_root = zone->Alloc<char>(len + 1);
     package_root.ToUTF8(reinterpret_cast<uint8_t*>(utf8_package_root), len);
     utf8_package_root[len] = '\0';
   }
 
-  return Spawn(isolate, new IsolateSpawnState(
-      port.Id(), canonical_uri, utf8_package_root, args, message));
+  return Spawn(isolate, new IsolateSpawnState(port.Id(),
+                                              canonical_uri,
+                                              utf8_package_root,
+                                              args,
+                                              message,
+                                              paused.value()));
 }
 
 
 DEFINE_NATIVE_ENTRY(Isolate_getPortAndCapabilitiesOfCurrentIsolate, 0) {
   const Array& result = Array::Handle(Array::New(3));
   result.SetAt(0, SendPort::Handle(SendPort::New(isolate->main_port())));
   result.SetAt(1, Capability::Handle(
                       Capability::New(isolate->pause_capability())));
   result.SetAt(2, Capability::Handle(
                       Capability::New(isolate->terminate_capability())));
@@ skipping 12 matching lines @@
   MessageWriter writer(&data, &allocator);
   writer.WriteMessage(msg);
 
   PortMap::PostMessage(new Message(port.Id(),
                                    data, writer.BytesWritten(),
                                    Message::kOOBPriority));
   return Object::null();
 }
 
 }  // namespace dart