pjs/netwerk/cache/public/nsICacheSession.idl

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/* -*- Mode: IDL; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
*
* 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 Netscape are
* Copyright (C) 2001 Netscape Communications Corporation. All
* Rights Reserved.
*
* Contributor(s):
* Gordon Sheridan <gordon@netscape.com>
* Patrick Beard <beard@netscape.com>
* Darin Fisher <darin@netscape.com>
*/
#include "nsISupports.idl"
#include "nsICache.idl"
interface nsICacheEntryDescriptor;
interface nsICacheListener;
[scriptable, uuid(b4b419ad-28b7-4d25-9988-20fa98505a19)]
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 string 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 string key,
in nsCacheAccessMode accessRequested,
in nsICacheListener listener);
/**
* Evict all entries for this session's clientID according to its storagePolicy.
*/
void evictEntries();
};