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Diffstat (limited to 'src/libs/xpcom18a4/xpcom/threads/nsIEnvironment.idl')
-rw-r--r-- | src/libs/xpcom18a4/xpcom/threads/nsIEnvironment.idl | 89 |
1 files changed, 89 insertions, 0 deletions
diff --git a/src/libs/xpcom18a4/xpcom/threads/nsIEnvironment.idl b/src/libs/xpcom18a4/xpcom/threads/nsIEnvironment.idl new file mode 100644 index 00000000..95351346 --- /dev/null +++ b/src/libs/xpcom18a4/xpcom/threads/nsIEnvironment.idl @@ -0,0 +1,89 @@ +/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*- */ +/* ***** 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 mozilla embedding code. + * + * The Initial Developers of the Original Code are + * Benjamin Smedberg <bsmedberg@covad.net> and + * Roland Mainz <roland.mainz@informatik.med.uni-giessen.de>. + * + * Portions created by the Initial Developer are Copyright (C) 2003/2004 + * 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 "nsISupports.idl" + +/** + * Scriptable access to the current process environment. + * + */ +[scriptable, uuid(101d5941-d820-4e85-a266-9a3469940807)] +interface nsIEnvironment : nsISupports +{ + /** + * Set the value of an environment variable. + * + * @param aName the variable name to set. + * @param aValue the value to set. + */ + void set(in AString aName, in AString aValue); + + /** + * Get the value of an environment variable. + * + * @param aName the variable name to retrieve. + * @return returns the value of the env variable. An empty string + * will be returned when the env variable does not exist or + * when the value itself is an empty string - please use + * |exists()| to probe whether the env variable exists + * or not. + */ + AString get(in AString aName); + + /** + * Check the existence of an environment variable. + * This method checks whether an environment variable is present in + * the environment or not. + * + * - For Unix/Linux platforms we follow the Unix definition: + * An environment variable exists when |getenv()| returns a non-NULL value. + * An environment variable does not exist when |getenv()| returns NULL. + * - For non-Unix/Linux platforms we have to fall back to a + * "portable" definition (which is incorrect for Unix/Linux!!!!) + * which simply checks whether the string returned by |Get()| is empty + * or not. + * + * @param aName the variable name to probe. + * @return if the variable has been set, the value returned is + * PR_TRUE. If the variable was not defined in the + * environment PR_FALSE will be returned. + */ + boolean exists(in AString aName); +}; + |