1// Copyright (c) 2011, Google Inc. 2// All rights reserved. 3// 4// Redistribution and use in source and binary forms, with or without 5// modification, are permitted provided that the following conditions are 6// met: 7// 8// * Redistributions of source code must retain the above copyright 9// notice, this list of conditions and the following disclaimer. 10// * Redistributions in binary form must reproduce the above 11// copyright notice, this list of conditions and the following disclaimer 12// in the documentation and/or other materials provided with the 13// distribution. 14// * Neither the name of Google Inc. nor the names of its 15// contributors may be used to endorse or promote products derived from 16// this software without specific prior written permission. 17// 18// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 19// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 20// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 21// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 22// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 23// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 24// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 25// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 26// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 27// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 28// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 29// --- 30// 31// Author: Craig Silverstein 32 33// This tests the accounting done by tcmalloc. When we allocate and 34// free a small buffer, the number of bytes used by the application 35// before the alloc+free should match the number of bytes used after. 36// However, the internal data structures used by tcmalloc will be 37// quite different -- new spans will have been allocated, etc. This 38// is, thus, a simple test that we account properly for the internal 39// data structures, so that we report the actual application-used 40// bytes properly. 41 42#include "config_for_unittests.h" 43#include <stdlib.h> 44#include <stdio.h> 45#include <gperftools/malloc_extension.h> 46#include "base/logging.h" 47 48const char kCurrent[] = "generic.current_allocated_bytes"; 49 50int main() { 51 // We don't do accounting right when using debugallocation.cc, so 52 // turn off the test then. TODO(csilvers): get this working too. 53#ifdef NDEBUG 54 size_t before_bytes, after_bytes; 55 MallocExtension::instance()->GetNumericProperty(kCurrent, &before_bytes); 56 free(malloc(200)); 57 MallocExtension::instance()->GetNumericProperty(kCurrent, &after_bytes); 58 59 CHECK_EQ(before_bytes, after_bytes); 60#endif 61 printf("PASS\n"); 62 return 0; 63} 64