Enable VM service inside Dartium Renderer processes

Source/bindings/dart/DartController.cpp

 // Copyright (c) 2009, Google Inc.
 // 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
@@ skipping 18 matching lines @@
 
 #include "config.h"
 #include "bindings/dart/DartController.h"
 
 #if OS(ANDROID)
 #include <sys/system_properties.h>
 #endif
 
 
 #include "DartDocument.h"
+#include "DartService.h"
 #include "DartWindow.h"
 #include "HTMLNames.h"
 #include "bindings/dart/DartApplicationLoader.h"
 #include "bindings/dart/DartAsyncLoader.h"
 #include "bindings/dart/DartDOMData.h"
 #include "bindings/dart/DartDOMWrapper.h"
 #include "bindings/dart/DartDebugServer.h"
 #include "bindings/dart/DartGCController.h"
 #include "bindings/dart/DartIsolateDestructionObserver.h"
 #include "bindings/dart/DartJsInterop.h"
@@ skipping 166 matching lines @@
         // so weak handles strong, see the corresponding logic in
         // DartGCController.
         domData->setReachableWeakHandle(Dart_NewWeakPersistentHandle(localHandle, 0, 0));
 
         DartDebugServer::shared().registerIsolate(isolate);
     }
 
     return isolate;
 }
 
+
 void DartController::createDOMEnabledIsolateIfNeeded(const String& scriptURL, const String& entryPoint, Document* document)
 {
     if (m_isolate) {
         Dart_EnterIsolate(m_isolate);
         return;
     }
+
     // FIXME: proper error reporting.
     char* errorMessage = 0;
     m_isolate = createIsolate(scriptURL.utf8().data(), entryPoint.utf8().data(), document, true, &errorMessage);
     ASSERT(m_isolate);
+    if (getenv("DARTIUM_VMSERVICE")) {

[siva, 2013/12/13 21:48:23]

I am hoping this will be a stop gap arrangement until we find a better way of
starting up the vm service, maybe it could be inside the VM and vm flags would
take care of it.

+        // createIsolate exits with current isolate set to m_isolate, we need to
+        // exit it so we can startup the service.
+        Dart_ExitIsolate();
+
+        bool r = DartService::Start(document);
+        ASSERT(r);
+        ASSERT(!Dart_CurrentIsolate());
+
+        Dart_EnterIsolate(m_isolate);
+        Dart_EnterScope();
+        DartService::SendIsolateStartupMessage();
+        Dart_ExitScope();
+    }
+
 }
 
 void DartController::shutdownIsolate(Dart_Isolate isolate)
 {
     DartDOMData* domData = DartDOMData::current();
     ASSERT(domData->isDOMEnabled());
     // If the following assert triggers, we have hit dartbug.com/14183
     // FIXME: keep the isolate alive until the recursion level is 0.
     ASSERT(!*(domData->recursion()));
     DartDebugServer::shared().unregisterIsolate(isolate);
     DartIsolateDestructionObservers* observers = domData->isolateDestructionObservers();
     for (DartIsolateDestructionObservers::iterator it = observers->begin(); it != observers->end(); ++it)
         (*it)->isolateDestroyed();
     Dart_ShutdownIsolate();
+    // Stop the service.
+    DartService::Stop();
     delete domData;
 }
 
 DartController::DartController(Frame* frame)
     : m_frame(frame)
     , m_isolate(0)
     , m_asyncLoader(0)
     , m_npObjectMap()
 {
     // The DartController's constructor must be called in the Frame's
@@ skipping 148 matching lines @@
         // spawnFunction is not allowed from a DOM enabled isolate.
         // This triggers an exception in the caller.
         *errorMsg = strdup("spawnFunction is not supported from a dom-enabled isolate. Please use spawnUri instead.");
         return 0;
     }
 
     ASSERT(context->isDocument());
     Document* document = static_cast<Document*>(context);
 
     Dart_Isolate isolate = createIsolate(scriptURL, entryPoint, document, false, errorMsg);
+    {
+        Dart_EnterScope();
+        DartService::SendIsolateStartupMessage();
+        Dart_ExitScope();
+    }
+
     if (!isolate) {
         // This triggers an exception in the caller.
         *errorMsg = strdup("Isolate spawn failed.");
         return 0;
     }
 
     // FIXME: If a spawnFunction, we should not need to request resources again. But, it's not clear
     // we need this callback in the first place for spawnFunction.
 
     // We need to request the sources asynchronously.
@@ skipping 127 matching lines @@
     int propLen = DartUtilities::getProp(
         "DART_FLAGS", flagsProp, DartUtilities::PROP_VALUE_MAX_LEN);
     if (propLen > 0) {
         setDartFlags(flagsProp);
     } else {
         setDartFlags(0);
     }
 
     // FIXME(antonm): implement proper shutdown callback.
     // FIXME(antonm): implement proper unhandled exception callback.
-    Dart_Initialize(&createPureIsolateCallback, 0, 0, 0, openFileCallback, readFileCallback, writeFileCallback, closeFileCallback, generateEntropy);
+    Dart_Initialize(&createPureIsolateCallback, 0, 0, DartService::VmServiceShutdownCallback, openFileCallback, readFileCallback, writeFileCallback, closeFileCallback, generateEntropy);
     hasBeenInitialized = true;
 }
 
 static bool checkForExpiration()
 {
     const time_t ExpirationTimeSecsSinceEpoch =
 #include "bindings/dart/ExpirationTimeSecsSinceEpoch.time_t"
     ;
     const char* override = getenv("DARTIUM_EXPIRATION_TIME");
     time_t expiration;
@@ skipping 261 matching lines @@
         Dart_Handle libraryIdHandle = Dart_ListGetAt(libraryIdList, i);
         Dart_Handle exception = 0;
         intptr_t libraryId = DartUtilities::toInteger(libraryIdHandle, exception);
         ASSERT(!exception);
         DartScriptState* scriptState = lookupScriptStateFromLibraryIdMap(isolate, v8Context, libraryIdMap, libraryId);
         result.append(scriptState);
     }
 }
 
 }