LCOV - code coverage report
Current view: directory - widget/gtk2 - nsCUPSShim.cpp (source / functions) Found Hit Coverage
Test: app.info Lines: 15 0 0.0 %
Date: 2012-06-02 Functions: 1 0 0.0 %

       1                 : /* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
       2                 : /* ex: set tabstop=8 softtabstop=4 shiftwidth=4 expandtab: */
       3                 : /* ***** BEGIN LICENSE BLOCK *****
       4                 :  * Version: MPL 1.1/GPL 2.0/LGPL 2.1
       5                 :  *
       6                 :  * The contents of this file are subject to the Mozilla Public License Version
       7                 :  * 1.1 (the "License"); you may not use this file except in compliance with
       8                 :  * the License. You may obtain a copy of the License at
       9                 :  * http://www.mozilla.org/MPL/
      10                 :  *
      11                 :  * Software distributed under the License is distributed on an "AS IS" basis,
      12                 :  * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
      13                 :  * for the specific language governing rights and limitations under the
      14                 :  * License.
      15                 :  *
      16                 :  * The Original Code is the Mozilla PostScript driver printer list component.
      17                 :  *
      18                 :  * The Initial Developer of the Original Code is
      19                 :  * Kenneth Herron <kherron+mozilla@fmailbox.com>
      20                 :  * Portions created by the Initial Developer are Copyright (C) 2004
      21                 :  * the Initial Developer. All Rights Reserved.
      22                 :  *
      23                 :  * Contributor(s):
      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 "nsDebug.h"
      40                 : #include "nsString.h"
      41                 : #include "nsCUPSShim.h"
      42                 : #include "prlink.h"
      43                 : 
      44                 : 
      45                 : // List of symbols to find in libcups. Must match symAddr[] defined in Init().
      46                 : // Making this an array of arrays instead of pointers allows storing the
      47                 : // whole thing in read-only memory.
      48                 : static const char gSymName[][sizeof("cupsPrintFile")] = {
      49                 :     { "cupsAddOption" },
      50                 :     { "cupsFreeDests" },
      51                 :     { "cupsGetDest" },
      52                 :     { "cupsGetDests" },
      53                 :     { "cupsPrintFile" },
      54                 :     { "cupsTempFd" },
      55                 : };
      56                 : static const int gSymNameCt = NS_ARRAY_LENGTH(gSymName);
      57                 : 
      58                 : 
      59                 : bool
      60               0 : nsCUPSShim::Init()
      61                 : {
      62               0 :     mCupsLib = PR_LoadLibrary("libcups.so.2");
      63               0 :     if (!mCupsLib)
      64               0 :         return false;
      65                 : 
      66                 :     // List of symbol pointers. Must match gSymName[] defined above.
      67                 :     void **symAddr[] = {
      68                 :         (void **)&mCupsAddOption,
      69                 :         (void **)&mCupsFreeDests,
      70                 :         (void **)&mCupsGetDest,
      71                 :         (void **)&mCupsGetDests,
      72                 :         (void **)&mCupsPrintFile,
      73                 :         (void **)&mCupsTempFd,
      74               0 :     };
      75                 : 
      76               0 :     for (int i = gSymNameCt; i--; ) {
      77               0 :         *(symAddr[i]) = PR_FindSymbol(mCupsLib, gSymName[i]);
      78               0 :         if (! *(symAddr[i])) {
      79                 : #ifdef DEBUG
      80               0 :             nsCAutoString msg(gSymName[i]);
      81               0 :             msg.Append(" not found in CUPS library");
      82               0 :             NS_WARNING(msg.get());
      83                 : #endif
      84               0 :             PR_UnloadLibrary(mCupsLib);
      85               0 :             mCupsLib = nsnull;
      86               0 :             return false;
      87                 :         }
      88                 :     }
      89               0 :     return true;
      90                 : }

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