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Diffstat (limited to '')
-rw-r--r-- | src/libs/xpcom18a4/nsprpub/pr/src/misc/prenv.c | 109 |
1 files changed, 109 insertions, 0 deletions
diff --git a/src/libs/xpcom18a4/nsprpub/pr/src/misc/prenv.c b/src/libs/xpcom18a4/nsprpub/pr/src/misc/prenv.c new file mode 100644 index 00000000..7f9d5ab3 --- /dev/null +++ b/src/libs/xpcom18a4/nsprpub/pr/src/misc/prenv.c @@ -0,0 +1,109 @@ +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ +/* ***** BEGIN LICENSE BLOCK ***** + * Version: MPL 1.1/GPL 2.0/LGPL 2.1 + * + * The contents of this file are subject to the Mozilla Public License Version + * 1.1 (the "License"); you may not use this file except in compliance with + * the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * Software distributed under the License is distributed on an "AS IS" basis, + * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License + * for the specific language governing rights and limitations under the + * License. + * + * The Original Code is the Netscape Portable Runtime (NSPR). + * + * The Initial Developer of the Original Code is + * Netscape Communications Corporation. + * Portions created by the Initial Developer are Copyright (C) 1998-2000 + * the Initial Developer. All Rights Reserved. + * + * Contributor(s): + * + * Alternatively, the contents of this file may be used under the terms of + * either the GNU General Public License Version 2 or later (the "GPL"), or + * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"), + * in which case the provisions of the GPL or the LGPL are applicable instead + * of those above. If you wish to allow use of your version of this file only + * under the terms of either the GPL or the LGPL, and not to allow others to + * use your version of this file under the terms of the MPL, indicate your + * decision by deleting the provisions above and replace them with the notice + * and other provisions required by the GPL or the LGPL. If you do not delete + * the provisions above, a recipient may use your version of this file under + * the terms of any one of the MPL, the GPL or the LGPL. + * + * ***** END LICENSE BLOCK ***** */ + +#include <string.h> +#include "primpl.h" + +/* Lock used to lock the environment */ +#if defined(_PR_NO_PREEMPT) +#define _PR_NEW_LOCK_ENV() +#define _PR_DELETE_LOCK_ENV() +#define _PR_LOCK_ENV() +#define _PR_UNLOCK_ENV() +#elif defined(_PR_LOCAL_THREADS_ONLY) +extern _PRCPU * _pr_primordialCPU; +static PRIntn _is; +#define _PR_NEW_LOCK_ENV() +#define _PR_DELETE_LOCK_ENV() +#define _PR_LOCK_ENV() if (_pr_primordialCPU) _PR_INTSOFF(_is); +#define _PR_UNLOCK_ENV() if (_pr_primordialCPU) _PR_INTSON(_is); +#else +static PRLock *_pr_envLock = NULL; +#define _PR_NEW_LOCK_ENV() {_pr_envLock = PR_NewLock();} +#define _PR_DELETE_LOCK_ENV() \ + { if (_pr_envLock) { PR_DestroyLock(_pr_envLock); _pr_envLock = NULL; } } +#define _PR_LOCK_ENV() { if (_pr_envLock) PR_Lock(_pr_envLock); } +#define _PR_UNLOCK_ENV() { if (_pr_envLock) PR_Unlock(_pr_envLock); } +#endif + +/************************************************************************/ + +void _PR_InitEnv(void) +{ + _PR_NEW_LOCK_ENV(); +} + +void _PR_CleanupEnv(void) +{ + _PR_DELETE_LOCK_ENV(); +} + +PR_IMPLEMENT(char*) PR_GetEnv(const char *var) +{ + char *ev; + + if (!_pr_initialized) _PR_ImplicitInitialization(); + + _PR_LOCK_ENV(); + ev = _PR_MD_GET_ENV(var); + _PR_UNLOCK_ENV(); + return ev; +} + +PR_IMPLEMENT(PRStatus) PR_SetEnv(const char *string) +{ + PRIntn result; + + if (!_pr_initialized) _PR_ImplicitInitialization(); + + if ( !strchr(string, '=')) return(PR_FAILURE); + + _PR_LOCK_ENV(); + result = _PR_MD_PUT_ENV((char*)string); + _PR_UNLOCK_ENV(); + return (result)? PR_FAILURE : PR_SUCCESS; +} + +/* +** DEPRECATED. Use PR_SetEnv() instead. +*/ +#ifdef XP_MAC +PR_IMPLEMENT(PRIntn) PR_PutEnv(const char *string) +{ + return (PR_SetEnv(string) == PR_SUCCESS) ? PR_TRUE : PR_FALSE; +} +#endif |