sal/rtl/cmdargs.cxx

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
   2 /*
   3  * This file is part of the LibreOffice project.
   4  *
   5  * This Source Code Form is subject to the terms of the Mozilla Public
   6  * License, v. 2.0. If a copy of the MPL was not distributed with this
   7  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
   8  *
   9  * This file incorporates work covered by the following license notice:
  10  *
  11  *   Licensed to the Apache Software Foundation (ASF) under one or more
  12  *   contributor license agreements. See the NOTICE file distributed
  13  *   with this work for additional information regarding copyright
  14  *   ownership. The ASF licenses this file to you under the Apache
  15  *   License, Version 2.0 (the "License"); you may not use this file
  16  *   except in compliance with the License. You may obtain a copy of
  17  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
  18  */
  19
  20 #include <osl/mutex.hxx>
  21 #include <rtl/process.h>
  22 #include <rtl/ustring.hxx>
  23
  24 namespace {
  25
  26 rtl_uString ** g_ppCommandArgs = 0;
  27 sal_uInt32     g_nCommandArgCount = 0;
  28
  29 struct ArgHolder
  30 {
  31     ~ArgHolder();
  32 };
  33
  34 ArgHolder::~ArgHolder()
  35 {
  36     while (g_nCommandArgCount > 0)
  37         rtl_uString_release (g_ppCommandArgs[--g_nCommandArgCount]);
  38
  39     rtl_freeMemory (g_ppCommandArgs);
  40     g_ppCommandArgs = 0;
  41 }
  42
  43 // The destructor of this static ArgHolder is "activated" by the assignments to
  44 // g_ppCommandArgs and g_nCommandArgCount in init():
  45 ArgHolder argHolder;
  46
  47 void init()
  48 {
  49     osl::MutexGuard guard( osl::Mutex::getGlobalMutex() );
  50     if (!g_ppCommandArgs)
  51     {
  52         sal_Int32 i, n = osl_getCommandArgCount();
  53
  54         g_ppCommandArgs =
  55             (rtl_uString**)rtl_allocateZeroMemory (n * sizeof(rtl_uString*));
  56         for (i = 0; i < n; i++)
  57         {
  58             rtl_uString * pArg = 0;
  59             osl_getCommandArg (i, &pArg);
  60             if (('-' == pArg->buffer[0] || '/' == pArg->buffer[0]) &&
  61                  'e' == pArg->buffer[1] &&
  62                  'n' == pArg->buffer[2] &&
  63                  'v' == pArg->buffer[3] &&
  64                  ':' == pArg->buffer[4] &&
  65                 rtl_ustr_indexOfChar (&(pArg->buffer[5]), '=') >= 0 )
  66             {
  67                 // ignore.
  68                 rtl_uString_release (pArg);
  69             }
  70             else
  71             {
  72                 // assign.
  73                 g_ppCommandArgs[g_nCommandArgCount++] = pArg;
  74             }
  75         }
  76     }
  77 }
  78
  79 }
  80
  81 oslProcessError SAL_CALL rtl_getAppCommandArg (
  82     sal_uInt32 nArg, rtl_uString **ppCommandArg)
  83 {
  84     init();
  85     oslProcessError result = osl_Process_E_NotFound;
  86     if( nArg < g_nCommandArgCount )
  87     {
  88          rtl_uString_assign( ppCommandArg, g_ppCommandArgs[nArg] );
  89         result = osl_Process_E_None;
  90     }
  91     return (result);
  92 }
  93
  94 sal_uInt32 SAL_CALL rtl_getAppCommandArgCount()
  95 {
  96     init();
  97     return g_nCommandArgCount;
  98 }
  99
 100 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */