This adds a mechanism to invalidate code that was generated in the background. The invalidation can…

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 771 matching lines @@
       stack_frame_index_(-1),
       last_allocationprofile_accumulator_reset_timestamp_(0),
       last_allocationprofile_gc_timestamp_(0),
       object_id_ring_(NULL),
       trace_buffer_(NULL),
       profiler_data_(NULL),
       tag_table_(GrowableObjectArray::null()),
       deoptimized_code_array_(GrowableObjectArray::null()),
       background_compiler_(NULL),
       compilation_function_queue_(GrowableObjectArray::null()),
-      compilation_code_queue_(GrowableObjectArray::null()),
+      compilation_result_queue_(GrowableObjectArray::null()),
       pending_service_extension_calls_(GrowableObjectArray::null()),
       registered_service_extension_handlers_(GrowableObjectArray::null()),
       metrics_list_head_(NULL),
       compilation_allowed_(true),
       all_classes_finalized_(false),
       next_(NULL),
-      pause_loop_monitor_(NULL) {
+      pause_loop_monitor_(NULL),
+      cha_invalidation_gen_(0),
+      field_invalidation_gen_(0),
+      prefix_invalidation_gen_(0) {
   flags_.CopyFrom(api_flags);
   Thread::Current()->set_vm_tag(VMTag::kEmbedderTagId);
   set_user_tag(UserTags::kDefaultUserTag);
 }
 
 #undef REUSABLE_HANDLE_SCOPE_INIT
 #undef REUSABLE_HANDLE_INITIALIZERS
 
 Isolate::~Isolate() {
   free(name_);
@@ skipping 957 matching lines @@
   // Visit the default tag which is stored in the isolate.
   visitor->VisitPointer(reinterpret_cast<RawObject**>(&default_tag_));
 
   // Visit the tag table which is stored in the isolate.
   visitor->VisitPointer(reinterpret_cast<RawObject**>(&tag_table_));
 
   visitor->VisitPointer(reinterpret_cast<RawObject**>(
       &compilation_function_queue_));
 
   visitor->VisitPointer(reinterpret_cast<RawObject**>(
-      &compilation_code_queue_));
+      &compilation_result_queue_));
 
   // Visit the deoptimized code array which is stored in the isolate.
   visitor->VisitPointer(
       reinterpret_cast<RawObject**>(&deoptimized_code_array_));
 
   // Visit the pending service extension calls.
   visitor->VisitPointer(
       reinterpret_cast<RawObject**>(&pending_service_extension_calls_));
 
   // Visit the registered service extension handlers.
@@ skipping 212 matching lines @@
   deoptimized_code_array_ = value.raw();
 }
 
 
 void Isolate::set_compilation_function_queue(
     const GrowableObjectArray& value) {
   compilation_function_queue_ = value.raw();
 }
 
 
-void Isolate::set_compilation_code_queue(
+void Isolate::set_compilation_result_queue(
     const GrowableObjectArray& value) {
-  compilation_code_queue_ = value.raw();
+  compilation_result_queue_ = value.raw();
 }
 
 
 void Isolate::TrackDeoptimizedCode(const Code& code) {
   ASSERT(!code.IsNull());
   const GrowableObjectArray& deoptimized_code =
       GrowableObjectArray::Handle(deoptimized_code_array());
   if (deoptimized_code.IsNull()) {
     // Not tracking deoptimized code.
     return;
@@ skipping 589 matching lines @@
                            serialized_message_, serialized_message_len_);
 }
 
 
 void IsolateSpawnState::Cleanup() {
   SwitchIsolateScope switch_scope(I);
   Dart::ShutdownIsolate();
 }
 
 }  // namespace dart