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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"
- 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
- static const char kCurrent[] = "generic.current_allocated_bytes";
- 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;
- }
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