LCOV - code coverage report
Current view: directory - nsprpub/pr/src/misc - prenv.c (source / functions) Found Hit Coverage
Test: app.info Lines: 19 19 100.0 %
Date: 2012-06-02 Functions: 4 4 100.0 %

       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           20034 : void _PR_InitEnv(void)
      66                 : {
      67           20034 :         _PR_NEW_LOCK_ENV();
      68           20034 : }
      69                 : 
      70             140 : void _PR_CleanupEnv(void)
      71                 : {
      72             140 :     _PR_DELETE_LOCK_ENV();
      73             140 : }
      74                 : 
      75          398902 : PR_IMPLEMENT(char*) PR_GetEnv(const char *var)
      76                 : {
      77                 :     char *ev;
      78                 : 
      79          398902 :     if (!_pr_initialized) _PR_ImplicitInitialization();
      80                 : 
      81          398902 :     _PR_LOCK_ENV();
      82          398902 :     ev = _PR_MD_GET_ENV(var);
      83          398902 :     _PR_UNLOCK_ENV();
      84          398902 :     return ev;
      85                 : }
      86                 : 
      87             273 : PR_IMPLEMENT(PRStatus) PR_SetEnv(const char *string)
      88                 : {
      89                 :     PRIntn result;
      90                 : 
      91             273 :     if (!_pr_initialized) _PR_ImplicitInitialization();
      92                 : 
      93             273 :     if ( !strchr(string, '=')) return(PR_FAILURE);
      94                 : 
      95             273 :     _PR_LOCK_ENV();
      96             273 :     result = _PR_MD_PUT_ENV(string);
      97             273 :     _PR_UNLOCK_ENV();
      98             273 :     return (result)? PR_FAILURE : PR_SUCCESS;
      99                 : }

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