Mercurial > trustbridge > nss-cmake-static

annotate nspr/pr/src/misc/prenv.c @ 3:150b72113545

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Add DBM and legacydb support
author Andre Heinecke <andre.heinecke@intevation.de>
date Tue, 05 Aug 2014 18:32:02 +0200
parents 1e5118fa0cb1
children
rev   line source
0
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1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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2 /* This Source Code Form is subject to the terms of the Mozilla Public
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3 * License, v. 2.0. If a copy of the MPL was not distributed with this
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4 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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5
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6 #include <string.h>
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7 #include "primpl.h"
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8
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9 /* Lock used to lock the environment */
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10 #if defined(_PR_NO_PREEMPT)
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11 #define _PR_NEW_LOCK_ENV()
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12 #define _PR_DELETE_LOCK_ENV()
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13 #define _PR_LOCK_ENV()
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14 #define _PR_UNLOCK_ENV()
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15 #elif defined(_PR_LOCAL_THREADS_ONLY)
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16 extern _PRCPU * _pr_primordialCPU;
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17 static PRIntn _is;
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18 #define _PR_NEW_LOCK_ENV()
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19 #define _PR_DELETE_LOCK_ENV()
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20 #define _PR_LOCK_ENV() if (_pr_primordialCPU) _PR_INTSOFF(_is);
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21 #define _PR_UNLOCK_ENV() if (_pr_primordialCPU) _PR_INTSON(_is);
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22 #else
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23 static PRLock *_pr_envLock = NULL;
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24 #define _PR_NEW_LOCK_ENV() {_pr_envLock = PR_NewLock();}
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25 #define _PR_DELETE_LOCK_ENV() \
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26 { if (_pr_envLock) { PR_DestroyLock(_pr_envLock); _pr_envLock = NULL; } }
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27 #define _PR_LOCK_ENV() { if (_pr_envLock) PR_Lock(_pr_envLock); }
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28 #define _PR_UNLOCK_ENV() { if (_pr_envLock) PR_Unlock(_pr_envLock); }
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29 #endif
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30
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31 /************************************************************************/
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32
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33 void _PR_InitEnv(void)
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34 {
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35 _PR_NEW_LOCK_ENV();
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36 }
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37
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38 void _PR_CleanupEnv(void)
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39 {
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40 _PR_DELETE_LOCK_ENV();
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41 }
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42
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43 PR_IMPLEMENT(char*) PR_GetEnv(const char *var)
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44 {
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45 char *ev;
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46
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47 if (!_pr_initialized) _PR_ImplicitInitialization();
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48
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49 _PR_LOCK_ENV();
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50 ev = _PR_MD_GET_ENV(var);
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51 _PR_UNLOCK_ENV();
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52 return ev;
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53 }
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54
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55 PR_IMPLEMENT(PRStatus) PR_SetEnv(const char *string)
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56 {
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57 PRIntn result;
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58
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59 if (!_pr_initialized) _PR_ImplicitInitialization();
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60
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61 if ( !strchr(string, '=')) return(PR_FAILURE);
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62
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63 _PR_LOCK_ENV();
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64 result = _PR_MD_PUT_ENV(string);
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65 _PR_UNLOCK_ENV();
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66 return (result)? PR_FAILURE : PR_SUCCESS;
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67 }
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