Track live instance and allocation counts for classes

runtime/vm/service.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/service.h"
 
 #include "include/dart_api.h"
 
 #include "vm/compiler.h"
 #include "vm/cpu.h"
@@ skipping 1026 matching lines @@
   return true;
 }
 
 
 static bool HandleProfile(Isolate* isolate, JSONStream* js) {
   Profiler::PrintToJSONStream(isolate, js, true);
   return true;
 }
 
 
+static bool HandleHeap(Isolate* isolate, JSONStream* js) {
+  isolate->class_table()->HeapPrintToJSONStream(js);
+  return true;
+}
+
+
 static IsolateMessageHandlerEntry isolate_handlers[] = {
   { "_echo", HandleIsolateEcho },
+  { "heap", HandleHeap },

[Ivan Posva, 2014/01/17 06:53:16]

Why twice?

Also "heap"/HandleHeap is a bit of a misnomer. Shouldn't it be allocation stats,
live stats or similar?

[Cutch, 2014/01/17 18:37:59]

Bad merge.
allocationprofile?

   { "classes", HandleClasses },
   { "code", HandleCode },
   { "debug", HandleDebug },
+  { "heap", HandleHeap },
   { "libraries", HandleLibraries },
   { "library", HandleLibrary },
   { "name", HandleName },
   { "objecthistogram", HandleObjectHistogram},
   { "objects", HandleObjects },
   { "profile", HandleProfile },
   { "scripts", HandleScripts },
   { "stacktrace", HandleStackTrace },
 };
 
@@ skipping 93 matching lines @@
   for (intptr_t i = 0; i < num_message_handlers; i++) {
     const RootMessageHandlerEntry& entry = root_handlers[i];
     if (!strcmp(command, entry.command)) {
       return entry.handler;
     }
   }
   return NULL;
 }
 
 }  // namespace dart