LCOV - code coverage report
Current view: directory - nsprpub/pr/src/io - prmmap.c (source / functions) Found Hit Coverage
Test: app.info Lines: 20 16 80.0 %
Date: 2012-06-02 Functions: 5 5 100.0 %

       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                 : /*
      39                 :  *********************************************************************
      40                 :  *
      41                 :  * Memory-mapped files
      42                 :  *
      43                 :  *********************************************************************
      44                 :  */
      45                 : 
      46                 : #include "primpl.h"
      47                 : 
      48           13620 : PR_IMPLEMENT(PRFileMap *) PR_CreateFileMap(
      49                 :     PRFileDesc *fd,
      50                 :     PRInt64 size,
      51                 :     PRFileMapProtect prot)
      52                 : {
      53                 :     PRFileMap *fmap;
      54                 : 
      55           13620 :     PR_ASSERT(prot == PR_PROT_READONLY || prot == PR_PROT_READWRITE
      56                 :             || prot == PR_PROT_WRITECOPY);
      57           13620 :     fmap = PR_NEWZAP(PRFileMap);
      58           13620 :     if (NULL == fmap) {
      59               0 :         PR_SetError(PR_OUT_OF_MEMORY_ERROR, 0);
      60               0 :         return NULL;
      61                 :     }
      62           13620 :     fmap->fd = fd;
      63           13620 :     fmap->prot = prot;
      64           13620 :     if (_PR_MD_CREATE_FILE_MAP(fmap, size) == PR_SUCCESS) {
      65           13620 :         return fmap;
      66                 :     } else {
      67               0 :         PR_DELETE(fmap);
      68               0 :         return NULL;
      69                 :     }
      70                 : }
      71                 : 
      72             230 : PR_IMPLEMENT(PRInt32) PR_GetMemMapAlignment(void)
      73                 : {
      74             230 :     return _PR_MD_GET_MEM_MAP_ALIGNMENT();
      75                 : }
      76                 : 
      77           13620 : PR_IMPLEMENT(void *) PR_MemMap(
      78                 :     PRFileMap *fmap,
      79                 :     PROffset64 offset,
      80                 :     PRUint32 len)
      81                 : {
      82           13620 :     return _PR_MD_MEM_MAP(fmap, offset, len);
      83                 : }
      84                 : 
      85           13619 : PR_IMPLEMENT(PRStatus) PR_MemUnmap(void *addr, PRUint32 len)
      86                 : {
      87           13619 :     return _PR_MD_MEM_UNMAP(addr, len);
      88                 : }
      89                 : 
      90           13620 : PR_IMPLEMENT(PRStatus) PR_CloseFileMap(PRFileMap *fmap)
      91                 : {
      92           13620 :     return _PR_MD_CLOSE_FILE_MAP(fmap);
      93                 : }

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