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- /* -*- Mode: IDL; 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 nsICacheSession.idl, released
- * February 23, 2001.
- *
- * 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):
- * Gordon Sheridan <gordon@netscape.com>
- * Patrick Beard <beard@netscape.com>
- * Darin Fisher <darin@netscape.com>
- *
- * 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"
- #include "nsICache.idl"
-
- interface nsICacheEntryDescriptor;
- interface nsICacheListener;
-
- [scriptable, uuid(ae9e84b5-3e2d-457e-8fcd-5bbd2a8b832e)]
- interface nsICacheSession : nsISupports
- {
- /**
- * Expired entries will be doomed or evicted if this attribute is set to
- * true. If false, expired entries will be returned (useful for offline-
- * mode and clients, such as HTTP, that can update the valid lifetime of
- * cached content). This attribute defaults to true.
- */
- attribute PRBool doomEntriesIfExpired;
-
- /**
- * A cache session can only give out one descriptor with WRITE access
- * to a given cache entry at a time. Until the client calls MarkValid on
- * its descriptor, other attempts to open the same cache entry will block.
- */
-
- /**
- * Synchronous cache access. This returns a unique descriptor each
- * time it is called, even if the same key is specified. When
- * called by multiple threads for write access, only one writable
- * descriptor will be granted. If 'blockingMode' is set to false, it will
- * return NS_ERROR_CACHE_WAIT_FOR_VALIDATION rather than block when another
- * descriptor has been given WRITE access but hasn't validated the entry yet.
- */
- nsICacheEntryDescriptor openCacheEntry(in ACString key,
- in nsCacheAccessMode accessRequested,
- in boolean blockingMode);
-
- /**
- * Asynchronous cache access. Does not block the calling thread.
- * Instead, the listener will be notified when the descriptor is
- * available.
- */
- void asyncOpenCacheEntry(in ACString key,
- in nsCacheAccessMode accessRequested,
- in nsICacheListener listener);
-
- /**
- * Evict all entries for this session's clientID according to its storagePolicy.
- */
- void evictEntries();
-
- /**
- * Return whether any of the cache devices implied by the session storage policy
- * are currently enabled for instantiation if they don't already exist.
- */
- PRBool isStorageEnabled();
- };
-