Squashed 'third_party/gperftools/' content from commit 54505f1
Change-Id: Id02e833828732b0efe7dac722b8485279e67c5fa
git-subtree-dir: third_party/gperftools
git-subtree-split: 54505f1d50c2d1f4676f5e87090b64a117fd980e
diff --git a/src/tests/current_allocated_bytes_test.cc b/src/tests/current_allocated_bytes_test.cc
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+++ b/src/tests/current_allocated_bytes_test.cc
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+// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*-
+// Copyright (c) 2011, Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+// * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+// * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+// * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+// ---
+//
+// Author: Craig Silverstein
+
+// This tests the accounting done by tcmalloc. When we allocate and
+// free a small buffer, the number of bytes used by the application
+// before the alloc+free should match the number of bytes used after.
+// However, the internal data structures used by tcmalloc will be
+// quite different -- new spans will have been allocated, etc. This
+// is, thus, a simple test that we account properly for the internal
+// data structures, so that we report the actual application-used
+// bytes properly.
+
+#include "config_for_unittests.h"
+#include <stdlib.h>
+#include <stdio.h>
+#include <gperftools/malloc_extension.h>
+#include "base/logging.h"
+
+const char kCurrent[] = "generic.current_allocated_bytes";
+
+int main() {
+ // We don't do accounting right when using debugallocation.cc, so
+ // turn off the test then. TODO(csilvers): get this working too.
+#ifdef NDEBUG
+ size_t before_bytes, after_bytes;
+ MallocExtension::instance()->GetNumericProperty(kCurrent, &before_bytes);
+ free(malloc(200));
+ MallocExtension::instance()->GetNumericProperty(kCurrent, &after_bytes);
+
+ CHECK_EQ(before_bytes, after_bytes);
+#endif
+ printf("PASS\n");
+ return 0;
+}