LCOV - app.info - nsprpub/pr/src/misc/prenv.c

LCOV - code coverage report
| Current view: | directory - nsprpub/pr/src/misc - prenv.c (source / functions) |  | Found | Hit | Coverage |
| Test: | app.info | Lines: | 19 | 9 | 47.4 %
| Date: | 2012-04-07 | Functions: | 4 | 2 | 50.0 %

           1                 : /* -*- Mode: C++; tab-width: 4; 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 the Netscape Portable Runtime (NSPR).
          16                 :  *
          17                 :  * The Initial Developer of the Original Code is
          18                 :  * Netscape Communications Corporation.
          19                 :  * Portions created by the Initial Developer are Copyright (C) 1998-2000
          20                 :  * the Initial Developer. All Rights Reserved.
          21                 :  *
          22                 :  * Contributor(s):
          23                 :  *
          24                 :  * Alternatively, the contents of this file may be used under the terms of
          25                 :  * either the GNU General Public License Version 2 or later (the "GPL"), or
          26                 :  * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
          27                 :  * in which case the provisions of the GPL or the LGPL are applicable instead
          28                 :  * of those above. If you wish to allow use of your version of this file only
          29                 :  * under the terms of either the GPL or the LGPL, and not to allow others to
          30                 :  * use your version of this file under the terms of the MPL, indicate your
          31                 :  * decision by deleting the provisions above and replace them with the notice
          32                 :  * and other provisions required by the GPL or the LGPL. If you do not delete
          33                 :  * the provisions above, a recipient may use your version of this file under
          34                 :  * the terms of any one of the MPL, the GPL or the LGPL.
          35                 :  *
          36                 :  * ***** END LICENSE BLOCK ***** */
          37                 :
          38                 : #include <string.h>
          39                 : #include "primpl.h"
          40                 :
          41                 : /* Lock used to lock the environment */
          42                 : #if defined(_PR_NO_PREEMPT)
          43                 : #define _PR_NEW_LOCK_ENV()
          44                 : #define _PR_DELETE_LOCK_ENV()
          45                 : #define _PR_LOCK_ENV()
          46                 : #define _PR_UNLOCK_ENV()
          47                 : #elif defined(_PR_LOCAL_THREADS_ONLY)
          48                 : extern _PRCPU * _pr_primordialCPU;
          49                 : static PRIntn _is;
          50                 : #define _PR_NEW_LOCK_ENV()
          51                 : #define _PR_DELETE_LOCK_ENV()
          52                 : #define _PR_LOCK_ENV() if (_pr_primordialCPU) _PR_INTSOFF(_is);
          53                 : #define _PR_UNLOCK_ENV() if (_pr_primordialCPU) _PR_INTSON(_is);
          54                 : #else
          55                 : static PRLock *_pr_envLock = NULL;
          56                 : #define _PR_NEW_LOCK_ENV() {_pr_envLock = PR_NewLock();}
          57                 : #define _PR_DELETE_LOCK_ENV() \
          58                 :     { if (_pr_envLock) { PR_DestroyLock(_pr_envLock); _pr_envLock = NULL; } }
          59                 : #define _PR_LOCK_ENV() { if (_pr_envLock) PR_Lock(_pr_envLock); }
          60                 : #define _PR_UNLOCK_ENV() { if (_pr_envLock) PR_Unlock(_pr_envLock); }
          61                 : #endif
          62                 :
          63                 : /************************************************************************/
          64                 :
          65           18667 : void _PR_InitEnv(void)
          66                 : {
          67           18667 :         _PR_NEW_LOCK_ENV();
          68           18667 : }
          69                 :
          70               0 : void _PR_CleanupEnv(void)
          71                 : {
          72               0 :     _PR_DELETE_LOCK_ENV();
          73               0 : }
          74                 :
          75          261338 : PR_IMPLEMENT(char*) PR_GetEnv(const char *var)
          76                 : {
          77                 :     char *ev;
          78                 :
          79          261338 :     if (!_pr_initialized) _PR_ImplicitInitialization();
          80                 :
          81          261338 :     _PR_LOCK_ENV();
          82          261338 :     ev = _PR_MD_GET_ENV(var);
          83          261338 :     _PR_UNLOCK_ENV();
          84          261338 :     return ev;
          85                 : }
          86                 :
          87               0 : PR_IMPLEMENT(PRStatus) PR_SetEnv(const char *string)
          88                 : {
          89                 :     PRIntn result;
          90                 :
          91               0 :     if (!_pr_initialized) _PR_ImplicitInitialization();
          92                 :
          93               0 :     if ( !strchr(string, '=')) return(PR_FAILURE);
          94                 :
          95               0 :     _PR_LOCK_ENV();
          96               0 :     result = _PR_MD_PUT_ENV(string);
          97               0 :     _PR_UNLOCK_ENV();
          98               0 :     return (result)? PR_FAILURE : PR_SUCCESS;
          99                 : }

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