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..12515d7fd5f0e88934752e7fd9154be8ba915130
--- /dev/null
+++ b/base/allocator/allocated_type_profiler_tcmalloc.cc
@@ -0,0 +1,42 @@
+// Copyright 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 "base/allocator/allocated_type_profiler_tcmalloc.h"
+
+#if defined(PROFILING_ALLOCATED_TYPE)
+
+#include <gperftools/allocated_type_map.h>
+#include <gperftools/heap-profiler.h>
+
+#include "base/allocator/allocated_type_profiler_control.h"
+
+namespace base {
+namespace allocated_type {
+
+void* NewInterceptForTCMalloc(void* ptr,
+                              size_t size,
+                              const std::type_info& type) {
+  if (base::allocated_type::IsProfilingAllocatedType()) {

[jar (doing other things), 2012/08/23 19:55:25]

nit: no need to qualify the namespace here.

[Dai Mikurube (NOT FULLTIME), 2012/08/24 02:47:27]

Done.

+    if (IsHeapProfilerRunning()) {

[jar (doing other things), 2012/08/23 19:55:25]

nit: consider use of && to combine if statements. (and you'll have no reason to
have any curlies).  Same below.

[Dai Mikurube (NOT FULLTIME), 2012/08/24 02:47:27]

Done.

+      InsertAllocatedType(ptr, size, type);
+    }
+  }
+  return ptr;
+}
+
+void* DeleteInterceptForTCMalloc(void* ptr,
+                                 size_t size,
+                                 const std::type_info& type) {
+  if (base::allocated_type::IsProfilingAllocatedType()) {
+    if (IsHeapProfilerRunning()) {
+      EraseAllocatedType(ptr);
+    }
+  }
+  return ptr;
+}
+
+}  // namespace allocated_type
+}  // namespace base
+
+#endif  // defined(PROFILING_ALLOCATED_TYPE)