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