home *** CD-ROM | disk | FTP | other *** search
- /* -*- Mode: C++; tab-width: 4; 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 FastLoad code.
- *
- * The Initial Developer of the Original Code is
- * Netscape Communications Corporation.
- * Portions created by the Initial Developer are Copyright (C) 2001
- * the Initial Developer. All Rights Reserved.
- *
- * Contributor(s):
- *
- * Alternatively, the contents of this file may be used under the terms of
- * either of 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 ***** */
-
-
- /*
- * nsISeekableStream
- *
- * Note that a stream might not implement all methods (e.g., a readonly stream
- * won't implement setEOF)
- *
- * @status UNDER_REVIEW
- */
-
- #include "nsISupports.idl"
-
- [scriptable, uuid(8429d350-1040-4661-8b71-f2a6ba455980)]
- interface nsISeekableStream : nsISupports
- {
- /*
- * Sets the stream pointer to the value of the 'offset' parameter
- */
- const PRInt32 NS_SEEK_SET = 0;
-
- /*
- * Sets the stream pointer to its current location plus the value
- * of the offset parameter.
- */
- const PRInt32 NS_SEEK_CUR = 1;
-
- /*
- * Sets the stream pointer to the size of the stream plus the value
- * of the offset parameter.
- */
- const PRInt32 NS_SEEK_END = 2;
-
- /**
- * seek
- *
- * This method moves the stream offset of the steam implementing this
- * interface.
- *
- * @param whence specifies how to interpret the 'offset' parameter in
- * setting the stream offset associated with the implementing
- * stream.
- *
- * @param offset specifies a value, in bytes, that is used in conjunction
- * with the 'whence' parameter to set the stream offset of the
- * implementing stream. A negative value causes seeking in
- * the reverse direction.
- */
- void seek(in long whence, in long long offset);
-
- /**
- * tell
- *
- * This method reports the current offset, in bytes, from the start of the
- * stream.
- */
- long long tell();
-
-
- /**
- * setEOF
- *
- * This method truncates the stream at the current offset.
- */
- void setEOF();
- };
-