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89 lines
3.6 KiB
Plaintext
89 lines
3.6 KiB
Plaintext
/* -*- Mode: IDL; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
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*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "nsISupports.idl"
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#include "nsICache.idl"
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interface nsICacheEntryDescriptor;
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interface nsICacheListener;
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interface nsIFile;
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[scriptable, uuid(1dd7708c-de48-4ffe-b5aa-cd218c762887)]
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interface nsICacheSession : nsISupports
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{
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/**
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* Expired entries will be doomed or evicted if this attribute is set to
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* true. If false, expired entries will be returned (useful for offline-
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* mode and clients, such as HTTP, that can update the valid lifetime of
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* cached content). This attribute defaults to true.
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*/
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attribute boolean doomEntriesIfExpired;
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/**
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* When set, entries created with this session will be placed to a cache
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* based at this directory. Use when storing entries to a different
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* profile than the active profile of the the current running application
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* process.
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*/
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attribute nsIFile profileDirectory;
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/**
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* A cache session can only give out one descriptor with WRITE access
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* to a given cache entry at a time. Until the client calls MarkValid on
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* its descriptor, other attempts to open the same cache entry will block.
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*/
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/**
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* Synchronous cache access. This method fails if it is called on the main
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* thread. Use asyncOpenCacheEntry() instead. This returns a unique
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* descriptor each time it is called, even if the same key is specified.
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* When called by multiple threads for write access, only one writable
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* descriptor will be granted. If 'blockingMode' is set to false, it will
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* return NS_ERROR_CACHE_WAIT_FOR_VALIDATION rather than block when another
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* descriptor has been given WRITE access but hasn't validated the entry yet.
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*/
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nsICacheEntryDescriptor openCacheEntry(in ACString key,
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in nsCacheAccessMode accessRequested,
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in boolean blockingMode);
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/**
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* Asynchronous cache access. Does not block the calling thread. Instead,
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* the listener will be notified when the descriptor is available. If
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* 'noWait' is set to true, the listener will be notified immediately with
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* status NS_ERROR_CACHE_WAIT_FOR_VALIDATION rather than queuing the request
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* when another descriptor has been given WRITE access but hasn't validated
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* the entry yet.
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*/
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void asyncOpenCacheEntry(in ACString key,
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in nsCacheAccessMode accessRequested,
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in nsICacheListener listener,
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[optional] in boolean noWait);
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/**
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* Evict all entries for this session's clientID according to its storagePolicy.
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*/
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void evictEntries();
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/**
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* Return whether any of the cache devices implied by the session storage policy
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* are currently enabled for instantiation if they don't already exist.
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*/
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boolean isStorageEnabled();
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/**
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* Asynchronously doom an entry specified by the key. Listener will be
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* notified about the status of the operation. Null may be passed if caller
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* doesn't care about the result.
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*/
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void doomEntry(in ACString key, in nsICacheListener listener);
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/**
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* Private entries will be doomed when the last private browsing session
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* finishes.
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*/
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attribute boolean isPrivate;
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};
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