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 48 const char kCurrent[] = "generic.current_allocated_bytes"; 49 50 int 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
