зеркало из https://github.com/mozilla/gecko-dev.git
130 строки
2.9 KiB
C++
130 строки
2.9 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=2 et sw=2 tw=80: */
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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 file,
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* You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef mozilla_dom_quota_client_h__
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#define mozilla_dom_quota_client_h__
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#include "mozilla/dom/quota/QuotaCommon.h"
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#include "PersistenceType.h"
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class nsIOfflineStorage;
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class nsIRunnable;
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#define IDB_DIRECTORY_NAME "idb"
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#define ASMJSCACHE_DIRECTORY_NAME "asmjs"
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#define DOMCACHE_DIRECTORY_NAME "cache"
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BEGIN_QUOTA_NAMESPACE
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class OriginOrPatternString;
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class UsageInfo;
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// An abstract interface for quota manager clients.
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// Each storage API must provide an implementation of this interface in order
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// to participate in centralized quota and storage handling.
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class Client
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{
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public:
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NS_IMETHOD_(MozExternalRefCountType)
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AddRef() = 0;
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NS_IMETHOD_(MozExternalRefCountType)
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Release() = 0;
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enum Type {
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IDB = 0,
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//LS,
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//APPCACHE,
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ASMJS,
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DOMCACHE,
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TYPE_MAX
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};
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virtual Type
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GetType() = 0;
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static nsresult
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TypeToText(Type aType, nsAString& aText)
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{
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switch (aType) {
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case IDB:
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aText.AssignLiteral(IDB_DIRECTORY_NAME);
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break;
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case ASMJS:
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aText.AssignLiteral(ASMJSCACHE_DIRECTORY_NAME);
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break;
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case DOMCACHE:
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aText.AssignLiteral(DOMCACHE_DIRECTORY_NAME);
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break;
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case TYPE_MAX:
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default:
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NS_NOTREACHED("Bad id value!");
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return NS_ERROR_UNEXPECTED;
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}
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return NS_OK;
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}
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static nsresult
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TypeFromText(const nsAString& aText, Type& aType)
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{
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if (aText.EqualsLiteral(IDB_DIRECTORY_NAME)) {
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aType = IDB;
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}
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else if (aText.EqualsLiteral(ASMJSCACHE_DIRECTORY_NAME)) {
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aType = ASMJS;
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}
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else if (aText.EqualsLiteral(DOMCACHE_DIRECTORY_NAME)) {
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aType = DOMCACHE;
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}
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else {
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return NS_ERROR_FAILURE;
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}
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return NS_OK;
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}
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// Methods which are called on the IO thred.
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virtual nsresult
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InitOrigin(PersistenceType aPersistenceType,
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const nsACString& aGroup,
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const nsACString& aOrigin,
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UsageInfo* aUsageInfo) = 0;
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virtual nsresult
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GetUsageForOrigin(PersistenceType aPersistenceType,
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const nsACString& aGroup,
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const nsACString& aOrigin,
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UsageInfo* aUsageInfo) = 0;
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virtual void
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OnOriginClearCompleted(PersistenceType aPersistenceType,
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const nsACString& aOrigin) = 0;
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virtual void
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ReleaseIOThreadObjects() = 0;
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// Methods which are called on the main thred.
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virtual void
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WaitForStoragesToComplete(nsTArray<nsIOfflineStorage*>& aStorages,
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nsIRunnable* aCallback) = 0;
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virtual void
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ShutdownWorkThreads() = 0;
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protected:
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virtual ~Client()
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{ }
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};
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END_QUOTA_NAMESPACE
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#endif // mozilla_dom_quota_client_h__
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