Index: base/allocator/type_profiler.cc |
diff --git a/base/allocator/type_profiler.cc b/base/allocator/type_profiler.cc |
new file mode 100644 |
index 0000000000000000000000000000000000000000..d3ced5728343f0cc2217382191391753dfed0f84 |
--- /dev/null |
+++ b/base/allocator/type_profiler.cc |
@@ -0,0 +1,62 @@ |
+// 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/type_profiler.h" |
+ |
+#if defined(TYPE_PROFILING) |
+ |
+namespace base { |
+namespace type_profiler { |
+ |
+// These variables are not in the InterceptFunctios class so that: |
jar (doing other things)
2012/09/06 19:31:43
nit: InterceptFunctios --> InterceptFunctions
Dai Mikurube (NOT FULLTIME)
2012/09/07 08:06:45
Finally, removed the comment.
|
+// * They are visible from __op_new_intercept__ and __op_delete_intercept__. |
+// * They are invisible from any other functions. |
jar (doing other things)
2012/09/06 19:31:43
I don't understand why you didn't just make them p
Dai Mikurube (NOT FULLTIME)
2012/09/07 08:06:45
Done.
|
+// |
+// Note that it is impossible to hide them by 'friend' |
+// since __op_new_intercept__ and __op_delete_intercept__ must be global. |
jar (doing other things)
2012/09/06 19:31:43
Global function can be friends.
Nice example in ht
Dai Mikurube (NOT FULLTIME)
2012/09/07 08:06:45
Done.
|
+static InterceptFunction* g_new_intercept = NopIntercept; |
+static InterceptFunction* g_delete_intercept = NopIntercept; |
+ |
+// static |
+bool InterceptFunctions::SetFunctions(InterceptFunction* new_intercept, |
+ InterceptFunction* delete_intercept) { |
+#if !defined(NDEBUG) |
+ // DCHECKs are wanted for these checks, but base/logging is not acceptable. |
jar (doing other things)
2012/09/06 19:31:43
It is confusing to have code in base/allocator/*,
Dai Mikurube (NOT FULLTIME)
2012/09/07 08:06:45
Done.
|
+ // This file is linked with many non-Chromium code. |
+ if (g_new_intercept != NopIntercept) |
+ return false; |
+ if (g_delete_intercept != NopIntercept) |
+ return false; |
+#endif // !defined(NDEBUG) |
+ |
+ g_new_intercept = new_intercept; |
+ g_delete_intercept = delete_intercept; |
+ return true; |
+} |
+ |
+// static |
+bool InterceptFunctions::IsAvailable() { |
+ return g_new_intercept != NopIntercept || g_delete_intercept != NopIntercept; |
+} |
+ |
+void* NopIntercept(void* ptr, size_t size, const std::type_info& type) { |
+ return ptr; |
+} |
+ |
+} // namespace type_profiler |
+} // namespace base |
+ |
+void* __op_new_intercept__(void* ptr, |
+ size_t size, |
+ const std::type_info& type) { |
+ return base::type_profiler::g_new_intercept(ptr, size, type); |
+} |
+ |
+void* __op_delete_intercept__(void* ptr, |
+ size_t size, |
+ const std::type_info& type) { |
+ return base::type_profiler::g_delete_intercept(ptr, size, type); |
+} |
+ |
+#endif // defined(TYPE_PROFILING) |