LCOV - code coverage report
Current view: directory - objdir/dist/include/mozilla/ipc - SharedMemoryBasic_chromium.h (source / functions) Found Hit Coverage
Test: app.info Lines: 31 0 0.0 %
Date: 2012-06-02 Functions: 11 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) 2010
      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                 : #ifndef mozilla_ipc_SharedMemoryBasic_chromium_h
      41                 : #define mozilla_ipc_SharedMemoryBasic_chromium_h
      42                 : 
      43                 : #include "base/shared_memory.h"
      44                 : #include "SharedMemory.h"
      45                 : 
      46                 : #include "nsDebug.h"
      47                 : 
      48                 : //
      49                 : // This is a low-level wrapper around platform shared memory.  Don't
      50                 : // use it directly; use Shmem allocated through IPDL interfaces.
      51                 : //
      52                 : 
      53                 : namespace mozilla {
      54                 : namespace ipc {
      55                 : 
      56                 : class SharedMemoryBasic : public SharedMemory
      57               0 : {
      58                 : public:
      59                 :   typedef base::SharedMemoryHandle Handle;
      60                 : 
      61               0 :   SharedMemoryBasic()
      62               0 :   {
      63               0 :   }
      64                 : 
      65               0 :   SharedMemoryBasic(const Handle& aHandle)
      66               0 :     : mSharedMemory(aHandle, false)
      67                 :   {
      68               0 :   }
      69                 : 
      70                 :   NS_OVERRIDE
      71               0 :   virtual bool Create(size_t aNbytes)
      72                 :   {
      73               0 :     bool ok = mSharedMemory.Create("", false, false, aNbytes);
      74               0 :     if (ok) {
      75               0 :       Created(aNbytes);
      76                 :     }
      77               0 :     return ok;
      78                 :   }
      79                 : 
      80                 :   NS_OVERRIDE
      81               0 :   virtual bool Map(size_t nBytes)
      82                 :   {
      83               0 :     bool ok = mSharedMemory.Map(nBytes);
      84               0 :     if (ok) {
      85               0 :       Mapped(nBytes);
      86                 :     }
      87               0 :     return ok;
      88                 :   }
      89                 : 
      90                 :   NS_OVERRIDE
      91               0 :   virtual void* memory() const
      92                 :   {
      93               0 :     return mSharedMemory.memory();
      94                 :   }
      95                 : 
      96                 :   NS_OVERRIDE
      97               0 :   virtual SharedMemoryType Type() const
      98                 :   {
      99               0 :     return TYPE_BASIC;
     100                 :   }
     101                 : 
     102               0 :   static Handle NULLHandle()
     103                 :   {
     104               0 :     return base::SharedMemory::NULLHandle();
     105                 :   }
     106                 : 
     107               0 :   static bool IsHandleValid(const Handle &aHandle)
     108                 :   {
     109               0 :     return base::SharedMemory::IsHandleValid(aHandle);
     110                 :   }
     111                 : 
     112               0 :   bool ShareToProcess(base::ProcessHandle process,
     113                 :                       Handle* new_handle)
     114                 :   {
     115               0 :     base::SharedMemoryHandle handle;
     116               0 :     bool ret = mSharedMemory.ShareToProcess(process, &handle);
     117               0 :     if (ret)
     118               0 :       *new_handle = handle;
     119               0 :     return ret;
     120                 :   }
     121                 : 
     122                 : private:
     123                 :   base::SharedMemory mSharedMemory;
     124                 : };
     125                 : 
     126                 : } // namespace ipc
     127                 : } // namespace mozilla
     128                 : 
     129                 : 
     130                 : #endif // ifndef mozilla_ipc_SharedMemoryBasic_chromium_h

Generated by: LCOV version 1.7