Track live instance and allocation counts for classes

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 "platform/assert.h"
 #include "platform/json.h"
 #include "lib/mirrors.h"
 #include "vm/code_observers.h"
 #include "vm/compiler_stats.h"
 #include "vm/coverage.h"
 #include "vm/dart_api_state.h"
 #include "vm/dart_entry.h"
 #include "vm/debugger.h"
 #include "vm/deopt_instructions.h"
 #include "vm/heap.h"
+#include "vm/heap_class_stats.h"
 #include "vm/heap_histogram.h"
 #include "vm/message_handler.h"
 #include "vm/object_id_ring.h"
 #include "vm/object_store.h"
 #include "vm/parser.h"
 #include "vm/port.h"
 #include "vm/reusable_handles.h"
 #include "vm/service.h"
 #include "vm/simulator.h"
 #include "vm/stack_frame.h"
 #include "vm/stub_code.h"
 #include "vm/symbols.h"
 #include "vm/thread.h"
 #include "vm/timer.h"
 #include "vm/visitor.h"
 
 
 namespace dart {
 
 DEFINE_FLAG(bool, report_usage_count, false,
             "Track function usage and report.");
 DEFINE_FLAG(bool, trace_isolates, false,
             "Trace isolate creation and shut down.");
 
 
 void Isolate::RegisterClass(const Class& cls) {
   class_table()->Register(cls);
   if (object_histogram() != NULL) object_histogram()->RegisterClass(cls);
+  if (heap_class_stats() != NULL) heap_class_stats()->RegisterClass(cls);
 }
 
 
 class IsolateMessageHandler : public MessageHandler {
  public:
   explicit IsolateMessageHandler(Isolate* isolate);
   ~IsolateMessageHandler();
 
   const char* name() const;
   void MessageNotify(Message::Priority priority);
@@ skipping 243 matching lines @@
       spawn_data_(0),
       is_runnable_(false),
       gc_prologue_callbacks_(),
       gc_epilogue_callbacks_(),
       defer_finalization_count_(0),
       deopt_context_(NULL),
       stacktrace_(NULL),
       stack_frame_index_(-1),
       object_histogram_(NULL),
       object_id_ring_(NULL),
+      heap_class_stats_(NULL),
       REUSABLE_HANDLE_LIST(REUSABLE_HANDLE_INITIALIZERS)
       reusable_handles_() {
   if (FLAG_print_object_histogram && (Dart::vm_isolate() != NULL)) {
     object_histogram_ = new ObjectHistogram(this);
   }
+  heap_class_stats_ = new HeapClassStatistics(this);
 }
 #undef REUSABLE_HANDLE_INITIALIZERS
 
 
 Isolate::~Isolate() {
   delete [] name_;
   delete heap_;
   delete object_store_;
   delete api_state_;
   delete stub_code_;
   delete debugger_;
 #if defined(USING_SIMULATOR)
   delete simulator_;
 #endif
   delete mutex_;
   mutex_ = NULL;  // Fail fast if interrupts are scheduled on a dead isolate.
   delete message_handler_;
   message_handler_ = NULL;  // Fail fast if we send messages to a dead isolate.
   ASSERT(deopt_context_ == NULL);  // No deopt in progress when isolate deleted.
   delete object_histogram_;
+  delete heap_class_stats_;
 }
 
 void Isolate::SetCurrent(Isolate* current) {
   Thread::SetThreadLocal(isolate_key, reinterpret_cast<uword>(current));
 }
 
 
 // The single thread local key which stores all the thread local data
 // for a thread. Since an Isolate is the central repository for
 // storing all isolate specific information a single thread local key
@@ skipping 716 matching lines @@
   return func.raw();
 }
 
 
 void IsolateSpawnState::Cleanup() {
   SwitchIsolateScope switch_scope(isolate());
   Dart::ShutdownIsolate();
 }
 
 }  // namespace dart