LCOV - code coverage report
Current view: directory - gfx/ipc - SharedDIB.cpp (source / functions) Found Hit Coverage
Test: app.info Lines: 32 0 0.0 %
Date: 2012-06-02 Functions: 7 0 0.0 %

       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 mozilla.org code.
      16                 :  *
      17                 :  * The Initial Developer of the Original Code is
      18                 :  * Mozilla Foundation.
      19                 :  * Portions created by the Initial Developer are Copyright (C) 2009
      20                 :  * the Initial Developer. All Rights Reserved.
      21                 :  *
      22                 :  * Contributor(s):
      23                 :  *   Jim Mathies <jmathies@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                 : #include "SharedDIB.h"
      40                 : 
      41                 : namespace mozilla {
      42                 : namespace gfx {
      43                 : 
      44               0 : SharedDIB::SharedDIB() :
      45               0 :   mShMem(nsnull)
      46                 : {
      47               0 : }
      48                 : 
      49               0 : SharedDIB::~SharedDIB()
      50                 : {
      51               0 :   Close();
      52               0 : }
      53                 : 
      54                 : nsresult
      55               0 : SharedDIB::Create(PRUint32 aSize)
      56                 : {
      57               0 :   Close();
      58                 : 
      59               0 :   mShMem = new base::SharedMemory();
      60               0 :   if (!mShMem || !mShMem->Create("", false, false, aSize))
      61               0 :     return NS_ERROR_OUT_OF_MEMORY;
      62                 : 
      63               0 :   return NS_OK;
      64                 : }
      65                 : 
      66                 : bool
      67               0 : SharedDIB::IsValid()
      68                 : {
      69               0 :   if (!mShMem)
      70               0 :     return false;
      71                 : 
      72               0 :   return mShMem->IsHandleValid(mShMem->handle());
      73                 : }
      74                 : 
      75                 : nsresult
      76               0 : SharedDIB::Close()
      77                 : {
      78               0 :   delete mShMem;
      79                 : 
      80               0 :   mShMem = nsnull;
      81                 : 
      82               0 :   return NS_OK;
      83                 : }
      84                 : 
      85                 : nsresult
      86               0 : SharedDIB::Attach(Handle aHandle, PRUint32 aSize)
      87                 : {
      88               0 :   Close();
      89                 : 
      90               0 :   mShMem = new base::SharedMemory(aHandle, false);
      91               0 :   if(!mShMem)
      92               0 :     return NS_ERROR_OUT_OF_MEMORY;
      93                 : 
      94               0 :   return NS_OK;
      95                 : }
      96                 : 
      97                 : nsresult
      98               0 : SharedDIB::ShareToProcess(base::ProcessHandle aChildProcess, Handle *aChildHandle)
      99                 : {
     100               0 :   if (!mShMem)
     101               0 :     return NS_ERROR_UNEXPECTED;
     102                 : 
     103               0 :   if (!mShMem->ShareToProcess(aChildProcess, aChildHandle))
     104               0 :     return NS_ERROR_UNEXPECTED;
     105                 : 
     106               0 :   return NS_OK;
     107                 : }
     108                 : 
     109                 : } // gfx
     110                 : } // mozilla

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