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127 lines
4.2 KiB
Plaintext
127 lines
4.2 KiB
Plaintext
/* 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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interface nsICacheStorage;
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interface nsILoadContextInfo;
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interface nsIApplicationCache;
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interface nsIEventTarget;
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interface nsICacheStorageConsumptionObserver;
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/**
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* Provides access to particual cache storages of the network URI cache.
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*/
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[scriptable, uuid(ae29c44b-fbc3-4552-afaf-0a157ce771e7)]
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interface nsICacheStorageService : nsISupports
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{
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/**
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* Get storage where entries will only remain in memory, never written
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* to the disk.
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*
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* NOTE: Any existing disk entry for [URL|id-extension] will be doomed
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* prior opening an entry using this memory-only storage. Result of
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* AsyncOpenURI will be a new and empty memory-only entry. Using
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* OPEN_READONLY open flag has no effect on this behavior.
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*
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* @param aLoadContextInfo
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* Information about the loading context, this focuses the storage JAR and
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* respects separate storage for private browsing.
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*/
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nsICacheStorage memoryCacheStorage(in nsILoadContextInfo aLoadContextInfo);
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/**
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* Get storage where entries will be written to disk when not forbidden by
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* response headers.
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*
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* @param aLookupAppCache
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* When set true (for top level document loading channels) app cache will
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* be first to check on to find entries in.
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*/
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nsICacheStorage diskCacheStorage(in nsILoadContextInfo aLoadContextInfo,
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in bool aLookupAppCache);
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/**
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* Get storage where entries will be written to disk and marked as pinned.
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* These pinned entries are immune to over limit eviction and call of clear()
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* on this service.
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*/
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nsICacheStorage pinningCacheStorage(in nsILoadContextInfo aLoadContextInfo);
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/**
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* Get storage for a specified application cache obtained using some different
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* mechanism.
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*
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* @param aLoadContextInfo
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* Mandatory reference to a load context information.
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* @param aApplicationCache
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* Optional reference to an existing appcache. When left null, this will
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* work with offline cache as a whole.
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*/
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nsICacheStorage appCacheStorage(in nsILoadContextInfo aLoadContextInfo,
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in nsIApplicationCache aApplicationCache);
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/**
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* Get storage for synthesized cache entries that we currently use for ServiceWorker interception in non-e10s mode.
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*
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* This cache storage has no limits on file size to allow the ServiceWorker to intercept large files.
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*/
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nsICacheStorage synthesizedCacheStorage(in nsILoadContextInfo aLoadContextInfo);
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/**
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* Evict the whole cache.
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*/
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void clear();
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/**
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* Purge only data of disk backed entries. Metadata are left for
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* performance purposes.
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*/
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const uint32_t PURGE_DISK_DATA_ONLY = 1;
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/**
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* Purge whole disk backed entries from memory. Disk files will
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* be left unattended.
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*/
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const uint32_t PURGE_DISK_ALL = 2;
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/**
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* Purge all entries we keep in memory, including memory-storage
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* entries. This may be dangerous to use.
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*/
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const uint32_t PURGE_EVERYTHING = 3;
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/**
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* Purges data we keep warmed in memory. Use for tests and for
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* saving memory.
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*/
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void purgeFromMemory(in uint32_t aWhat);
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/**
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* I/O thread target to use for any operations on disk
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*/
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readonly attribute nsIEventTarget ioTarget;
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/**
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* Asynchronously determine how many bytes of the disk space the cache takes.
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* @see nsICacheStorageConsumptionObserver
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* @param aObserver
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* A mandatory (weak referred) observer. Documented at
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* nsICacheStorageConsumptionObserver.
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* NOTE: the observer MUST implement nsISupportsWeakReference.
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*/
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void asyncGetDiskConsumption(in nsICacheStorageConsumptionObserver aObserver);
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};
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[scriptable, uuid(7728ab5b-4c01-4483-a606-32bf5b8136cb)]
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interface nsICacheStorageConsumptionObserver : nsISupports
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{
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/**
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* Callback invoked to answer asyncGetDiskConsumption call. Always triggered
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* on the main thread.
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* NOTE: implementers must also implement nsISupportsWeakReference.
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*
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* @param aDiskSize
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* The disk consumption in bytes.
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*/
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void onNetworkCacheDiskConsumption(in int64_t aDiskSize);
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};
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