Type profiler by intercepting 'new' and 'delete' expressions.

base/allocator/allocated_type_profiler_tcmalloc.cc

Index: base/allocator/allocated_type_profiler_tcmalloc.cc
diff --git a/base/allocator/allocated_type_profiler_tcmalloc.cc b/base/allocator/allocated_type_profiler_tcmalloc.cc
new file mode 100644
index 0000000000000000000000000000000000000000..7cce46ab32aa468bbaf1f85679b22931711bcbd0
--- /dev/null
+++ b/base/allocator/allocated_type_profiler_tcmalloc.cc
@@ -0,0 +1,30 @@
+// Copyright (c) 2012 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "allocated_type_profiler_control.h"
+#include "allocated_type_profiler.h"
+#include <gperftools/allocated_type_map.h>
+#include <gperftools/heap-profiler.h>

[Ryan Sleevi, 2012/08/10 04:16:09]

style nit: Please see
http://google-styleguide.googlecode.com/svn/trunk/cppguide.xml#Names_and_Orde...
and order & space appropriately.

[Dai Mikurube (NOT FULLTIME), 2012/08/10 07:30:03]

Done.

+
+void* __op_new_intercept__(void* ptr,
+                           size_t size,
+                           const std::type_info& type) {
+  if (base::allocated_type::IsProfilingAllocatedType()) {
+    if (IsHeapProfilerRunning()) {
+      InsertAllocatedType(ptr, size, type);
+    }
+  }
+  return ptr;
+}
+
+void* __op_delete_intercept__(void* ptr,
+                              size_t size,
+                              const std::type_info& type) {
+  if (base::allocated_type::IsProfilingAllocatedType()) {
+    if (IsHeapProfilerRunning()) {
+      EraseAllocatedType(ptr);
+    }
+  }
+  return ptr;
+}