xref: /AOO41X/main/sal/rtl/source/cmdargs.cxx (revision 87d2adbc9cadf14644c3679b041b9226f7630199)
1 /**************************************************************
2  *
3  * Licensed to the Apache Software Foundation (ASF) under one
4  * or more contributor license agreements.  See the NOTICE file
5  * distributed with this work for additional information
6  * regarding copyright ownership.  The ASF licenses this file
7  * to you under the Apache License, Version 2.0 (the
8  * "License"); you may not use this file except in compliance
9  * with the License.  You may obtain a copy of the License at
10  *
11  *   http://www.apache.org/licenses/LICENSE-2.0
12  *
13  * Unless required by applicable law or agreed to in writing,
14  * software distributed under the License is distributed on an
15  * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
16  * KIND, either express or implied.  See the License for the
17  * specific language governing permissions and limitations
18  * under the License.
19  *
20  *************************************************************/
21 
22 
23 
24 // MARKER(update_precomp.py): autogen include statement, do not remove
25 #include "precompiled_sal.hxx"
26 
27 #include <osl/mutex.hxx>
28 #include <rtl/process.h>
29 #include <rtl/ustring.hxx>
30 
31 namespace {
32 
33 rtl_uString ** g_ppCommandArgs = 0;
34 sal_uInt32     g_nCommandArgCount = 0;
35 
36 struct ArgHolder
37 {
38     ~ArgHolder();
39 };
40 
~ArgHolder()41 ArgHolder::~ArgHolder()
42 {
43     while (g_nCommandArgCount > 0)
44         rtl_uString_release (g_ppCommandArgs[--g_nCommandArgCount]);
45 
46     rtl_freeMemory (g_ppCommandArgs);
47     g_ppCommandArgs = 0;
48 }
49 
50 // The destructor of this static ArgHolder is "activated" by the assignments to
51 // g_ppCommandArgs and g_nCommandArgCount in init():
52 ArgHolder argHolder;
53 
init()54 void init()
55 {
56     osl::MutexGuard guard( osl::Mutex::getGlobalMutex() );
57     if (!g_ppCommandArgs)
58     {
59         sal_Int32 i, n = osl_getCommandArgCount();
60 
61         g_ppCommandArgs =
62             (rtl_uString**)rtl_allocateZeroMemory (n * sizeof(rtl_uString*));
63         for (i = 0; i < n; i++)
64         {
65             rtl_uString * pArg = 0;
66             osl_getCommandArg (i, &pArg);
67             if (('-' == pArg->buffer[0] || '/' == pArg->buffer[0]) &&
68                  'e' == pArg->buffer[1] &&
69                  'n' == pArg->buffer[2] &&
70                  'v' == pArg->buffer[3] &&
71                  ':' == pArg->buffer[4] &&
72                 rtl_ustr_indexOfChar (&(pArg->buffer[5]), '=') >= 0 )
73             {
74                 // ignore.
75                 rtl_uString_release (pArg);
76             }
77             else
78             {
79                 // assign.
80                 g_ppCommandArgs[g_nCommandArgCount++] = pArg;
81             }
82         }
83     }
84 }
85 
86 }
87 
rtl_getAppCommandArg(sal_uInt32 nArg,rtl_uString ** ppCommandArg)88 oslProcessError SAL_CALL rtl_getAppCommandArg (
89     sal_uInt32 nArg, rtl_uString **ppCommandArg)
90 {
91     init();
92     oslProcessError result = osl_Process_E_NotFound;
93     if( nArg < g_nCommandArgCount )
94     {
95         rtl_uString_assign( ppCommandArg, g_ppCommandArgs[nArg] );
96         result = osl_Process_E_None;
97     }
98     return (result);
99 }
100 
rtl_getAppCommandArgCount(void)101 sal_uInt32 SAL_CALL rtl_getAppCommandArgCount (void)
102 {
103     init();
104     return g_nCommandArgCount;
105 }
106