LCOV - code coverage report
Current view: directory - xpcom/tests - TestJemalloc.cpp (source / functions) Found Hit Coverage
Test: app.info Lines: 32 25 78.1 %
Date: 2012-06-02 Functions: 4 4 100.0 %

       1                 : /* -*-  Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2; -*- */
       2                 : /* ***** BEGIN LICENSE BLOCK *****
       3                 :  * Version: MPL 1.1/GPL 2.0/LGPL 2.1
       4                 :  *
       5                 :  * The contents of this file are subject to the Mozilla Public License Version
       6                 :  * 1.1 (the "License"); you may not use this file except in compliance with
       7                 :  * the License. You may obtain a copy of the License at
       8                 :  * http://www.mozilla.org/MPL/
       9                 :  *
      10                 :  * Software distributed under the License is distributed on an "AS IS" basis,
      11                 :  * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
      12                 :  * for the specific language governing rights and limitations under the
      13                 :  * License.
      14                 :  *
      15                 :  * The Original Code is c++ array template tests.
      16                 :  *
      17                 :  * The Initial Developer of the Original Code is
      18                 :  * The Mozilla Foundation <http://www.mozilla.org/>.
      19                 :  * Portions created by the Initial Developer are Copyright (C) 2011
      20                 :  * the Initial Developer. All Rights Reserved.
      21                 :  *
      22                 :  * Contributor(s):
      23                 :  *  Nicholas Nethercote <nnethercote@mozilla.com>
      24                 :  *  
      25                 :  * Alternatively, the contents of this file may be used under the terms of
      26                 :  * either the GNU General Public License Version 2 or later (the "GPL"), or
      27                 :  * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
      28                 :  * in which case the provisions of the GPL or the LGPL are applicable instead
      29                 :  * of those above. If you wish to allow use of your version of this file only
      30                 :  * under the terms of either the GPL or the LGPL, and not to allow others to
      31                 :  * use your version of this file under the terms of the MPL, indicate your
      32                 :  * decision by deleting the provisions above and replace them with the notice
      33                 :  * and other provisions required by the GPL or the LGPL. If you do not delete
      34                 :  * the provisions above, a recipient may use your version of this file under
      35                 :  * the terms of any one of the MPL, the GPL or the LGPL.
      36                 :  *
      37                 :  * ***** END LICENSE BLOCK ***** */
      38                 : 
      39                 : /*
      40                 :  * Ideally, this test would be in memory/test/.  But I couldn't get it to build
      41                 :  * there (couldn't find TestHarness.h).  I think memory/ is processed too early
      42                 :  * in the build.  So it's here.
      43                 :  */
      44                 : 
      45                 : #include "TestHarness.h"
      46                 : #include "jemalloc.h"
      47                 : 
      48                 : static inline bool
      49           17308 : TestOne(size_t size)
      50                 : {
      51           17308 :     size_t req = size;
      52           17308 :     size_t adv = je_malloc_usable_size_in_advance(req);
      53           17308 :     char* p = (char*)malloc(req);
      54           17308 :     size_t usable = moz_malloc_usable_size(p);
      55           17308 :     if (adv != usable) {
      56                 :       fail("je_malloc_usable_size_in_advance(%d) --> %d; "
      57                 :            "malloc_usable_size(%d) --> %d",
      58               0 :            req, adv, req, usable);
      59               0 :       return false;
      60                 :     }
      61           17308 :     free(p);
      62           17308 :     return true;
      63                 : }
      64                 : 
      65                 : static inline bool
      66             308 : TestThree(size_t size)
      67                 : {
      68             308 :     return TestOne(size - 1) && TestOne(size) && TestOne(size + 1);
      69                 : }
      70                 : 
      71                 : static nsresult
      72               1 : TestJemallocUsableSizeInAdvance()
      73                 : {
      74                 :   #define K   * 1024
      75                 :   #define M   * 1024 * 1024
      76                 : 
      77                 :   /*
      78                 :    * Test every size up to a certain point, then (N-1, N, N+1) triplets for a
      79                 :    * various sizes beyond that.
      80                 :    */
      81                 : 
      82           16385 :   for (size_t n = 0; n < 16 K; n++)
      83           16384 :     if (!TestOne(n))
      84               0 :       return NS_ERROR_UNEXPECTED;
      85                 : 
      86             253 :   for (size_t n = 16 K; n < 1 M; n += 4 K)
      87             252 :     if (!TestThree(n))
      88               0 :       return NS_ERROR_UNEXPECTED;
      89                 : 
      90              57 :   for (size_t n = 1 M; n < 8 M; n += 128 K)
      91              56 :     if (!TestThree(n))
      92               0 :       return NS_ERROR_UNEXPECTED;
      93                 : 
      94               1 :   passed("je_malloc_usable_size_in_advance");
      95                 : 
      96               1 :   return NS_OK;
      97                 : }
      98                 : 
      99               1 : int main(int argc, char** argv)
     100                 : {
     101               1 :   int rv = 0;
     102               2 :   ScopedXPCOM xpcom("jemalloc");
     103               1 :   if (xpcom.failed())
     104               0 :       return 1;
     105                 : 
     106               1 :   if (NS_FAILED(TestJemallocUsableSizeInAdvance()))
     107               0 :     rv = 1;
     108                 : 
     109               1 :   return rv;
     110                 : }
     111                 : 

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