LCOV - code coverage report
Current view: directory - ipc/glue - SharedMemory_posix.cpp (source / functions) Found Hit Coverage
Test: app.info Lines: 13 0 0.0 %
Date: 2012-06-02 Functions: 2 0 0.0 %

       1                 : /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*-
       2                 :  * vim: sw=2 ts=8 et :
       3                 :  */
       4                 : /* ***** BEGIN LICENSE BLOCK *****
       5                 :  * Version: MPL 1.1/GPL 2.0/LGPL 2.1
       6                 :  *
       7                 :  * The contents of this file are subject to the Mozilla Public License Version
       8                 :  * 1.1 (the "License"); you may not use this file except in compliance with
       9                 :  * the License. You may obtain a copy of the License at
      10                 :  * http://www.mozilla.org/MPL/
      11                 :  *
      12                 :  * Software distributed under the License is distributed on an "AS IS" basis,
      13                 :  * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
      14                 :  * for the specific language governing rights and limitations under the
      15                 :  * License.
      16                 :  *
      17                 :  * The Original Code is Mozilla IPC.
      18                 :  *
      19                 :  * The Initial Developer of the Original Code is
      20                 :  *   The Mozilla Foundation
      21                 :  * Portions created by the Initial Developer are Copyright (C) 2009
      22                 :  * the Initial Developer. All Rights Reserved.
      23                 :  *
      24                 :  * Contributor(s):
      25                 :  *
      26                 :  * Alternatively, the contents of this file may be used under the terms of
      27                 :  * either the GNU General Public License Version 2 or later (the "GPL"), or
      28                 :  * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
      29                 :  * in which case the provisions of the GPL or the LGPL are applicable instead
      30                 :  * of those above. If you wish to allow use of your version of this file only
      31                 :  * under the terms of either the GPL or the LGPL, and not to allow others to
      32                 :  * use your version of this file under the terms of the MPL, indicate your
      33                 :  * decision by deleting the provisions above and replace them with the notice
      34                 :  * and other provisions required by the GPL or the LGPL. If you do not delete
      35                 :  * the provisions above, a recipient may use your version of this file under
      36                 :  * the terms of any one of the MPL, the GPL or the LGPL.
      37                 :  *
      38                 :  * ***** END LICENSE BLOCK ***** */
      39                 : 
      40                 : #include <sys/mman.h>         // mprotect
      41                 : #include <unistd.h>           // sysconf
      42                 : 
      43                 : #include "mozilla/ipc/SharedMemory.h"
      44                 : 
      45                 : namespace mozilla {
      46                 : namespace ipc {
      47                 : 
      48                 : void
      49               0 : SharedMemory::SystemProtect(char* aAddr, size_t aSize, int aRights)
      50                 : {
      51               0 :   int flags = 0;
      52               0 :   if (aRights & RightsRead)
      53               0 :     flags |= PROT_READ;
      54               0 :   if (aRights & RightsWrite)
      55               0 :     flags |= PROT_WRITE;
      56               0 :   if (RightsNone == aRights)
      57               0 :     flags = PROT_NONE;
      58                 : 
      59               0 :   if (0 < mprotect(aAddr, aSize, flags))
      60               0 :     NS_RUNTIMEABORT("can't mprotect()");
      61               0 : }
      62                 : 
      63                 : size_t
      64               0 : SharedMemory::SystemPageSize()
      65                 : {
      66               0 :   return sysconf(_SC_PAGESIZE);
      67                 : }
      68                 : 
      69                 : } // namespace ipc
      70                 : } // namespace mozilla

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