LCOV - app.info - nsprpub/pr/src/memory/prseg.c

LCOV - code coverage report
| Current view: | directory - nsprpub/pr/src/memory - prseg.c (source / functions) |  | Found | Hit | Coverage |
| Test: | app.info | Lines: | 2 | 2 | 100.0 %
| Date: | 2012-04-07 | Functions: | 1 | 1 | 100.0 %

           1                 : /* -*- Mode: C++; tab-width: 4; 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 the Netscape Portable Runtime (NSPR).
          16                 :  *
          17                 :  * The Initial Developer of the Original Code is
          18                 :  * Netscape Communications Corporation.
          19                 :  * Portions created by the Initial Developer are Copyright (C) 1998-2000
          20                 :  * the Initial Developer. All Rights Reserved.
          21                 :  *
          22                 :  * Contributor(s):
          23                 :  *
          24                 :  * Alternatively, the contents of this file may be used under the terms of
          25                 :  * either the GNU General Public License Version 2 or later (the "GPL"), or
          26                 :  * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
          27                 :  * in which case the provisions of the GPL or the LGPL are applicable instead
          28                 :  * of those above. If you wish to allow use of your version of this file only
          29                 :  * under the terms of either the GPL or the LGPL, and not to allow others to
          30                 :  * use your version of this file under the terms of the MPL, indicate your
          31                 :  * decision by deleting the provisions above and replace them with the notice
          32                 :  * and other provisions required by the GPL or the LGPL. If you do not delete
          33                 :  * the provisions above, a recipient may use your version of this file under
          34                 :  * the terms of any one of the MPL, the GPL or the LGPL.
          35                 :  *
          36                 :  * ***** END LICENSE BLOCK ***** */
          37                 :
          38                 : #include "primpl.h"
          39                 :
          40                 : #if defined(_PR_PTHREADS)
          41                 :
          42                 : /*
          43                 : ** The pthreads version doesn't use these functions.
          44                 : */
          45           18667 : void _PR_InitSegs(void)
          46                 : {
          47           18667 : }
          48                 :
          49                 : #else /* _PR_PTHREADS */
          50                 :
          51                 : void _PR_InitSegs(void)
          52                 : {
          53                 :         _PR_MD_INIT_SEGS();
          54                 : }
          55                 :
          56                 : /*
          57                 : ** Allocate a memory segment. The size value is rounded up to the native
          58                 : ** system page size and a page aligned portion of memory is returned.
          59                 : ** This memory is not part of the malloc heap. If "vaddr" is not NULL
          60                 : ** then PR tries to allocate the segment at the desired virtual address.
          61                 : */
          62                 : PRSegment* _PR_NewSegment(PRUint32 size, void *vaddr)
          63                 : {
          64                 :     PRSegment *seg;
          65                 :
          66                 :         /* calloc the data structure for the segment */
          67                 :     seg = PR_NEWZAP(PRSegment);
          68                 :
          69                 :     if (seg) {
          70                 :             size = ((size + _pr_pageSize - 1) >> _pr_pageShift) << _pr_pageShift;
          71                 :                 /*
          72                 :                 **      Now, allocate the actual segment memory (or map under some OS)
          73                 :                 **      The OS specific code decides from where or how to allocate memory.
          74                 :                 */
          75                 :             if (_PR_MD_ALLOC_SEGMENT(seg, size, vaddr) != PR_SUCCESS) {
          76                 :                         PR_DELETE(seg);
          77                 :                         return NULL;
          78                 :         }
          79                 :         }
          80                 :
          81                 :     return seg;
          82                 : }
          83                 :
          84                 : /*
          85                 : ** Free a memory segment.
          86                 : */
          87                 : void _PR_DestroySegment(PRSegment *seg)
          88                 : {
          89                 :         _PR_MD_FREE_SEGMENT(seg);
          90                 :     PR_DELETE(seg);
          91                 : }
          92                 :
          93                 : #endif /* _PR_PTHREADS */

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