82 lines
2.6 KiB
C++
82 lines
2.6 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=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
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef mozilla_net_EarlyHintRegistrar_h__
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#define mozilla_net_EarlyHintRegistrar_h__
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#include "mozilla/RefCounted.h"
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#include "mozilla/dom/ipc/IdType.h"
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#include "nsRefPtrHashtable.h"
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#include "mozilla/AlreadyAddRefed.h"
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class nsIParentChannel;
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namespace mozilla::net {
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class EarlyHintPreloader;
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/*
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* Registrar for pairing EarlyHintPreloader and HttpChannelParent via
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* earlyHintPreloaderId. EarlyHintPreloader has to be registered first.
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* EarlyHintPreloader::OnParentReady will be invoked to notify the
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* EarlyHintpreloader about the existence of the associated HttpChannelParent.
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*/
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class EarlyHintRegistrar final : public RefCounted<EarlyHintRegistrar> {
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using EarlyHintHashtable =
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nsRefPtrHashtable<nsUint64HashKey, EarlyHintPreloader>;
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public:
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MOZ_DECLARE_REFCOUNTED_TYPENAME(EarlyHintRegistrar)
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EarlyHintRegistrar();
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~EarlyHintRegistrar();
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/*
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* Store EarlyHintPreloader for the HttpChannelParent to connect back to.
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*
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* @param aEarlyHintPreloaderId identifying the EarlyHintPreloader
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* @param aEhp the EarlyHintPreloader to store
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*/
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void RegisterEarlyHint(uint64_t aEarlyHintPreloaderId,
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EarlyHintPreloader* aEhp);
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/*
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* Link the provided nsIParentChannel with the associated EarlyHintPreloader.
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*
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* @param aEarlyHintPreloaderId identifying the EarlyHintPreloader
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* @param aParent the nsIParentChannel to be paired
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* @param aChannelId the id of the nsIChannel connecting to the
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* EarlyHintPreloader.
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*/
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bool LinkParentChannel(dom::ContentParentId aCpId,
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uint64_t aEarlyHintPreloaderId,
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nsIParentChannel* aParent);
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/*
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* Delete previous stored EarlyHintPreloader
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*
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* @param aEarlyHintPreloaderId identifying the EarlyHintPreloader
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*/
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void DeleteEntry(dom::ContentParentId aCpId, uint64_t aEarlyHintPreloaderId);
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/*
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* This is called when "profile-change-net-teardown" is observed. We use this
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* to cancel the ongoing preload and clear the linked EarlyHintPreloader
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* objects.
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*/
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static void CleanUp();
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// Singleton accessor
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static already_AddRefed<EarlyHintRegistrar> GetOrCreate();
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private:
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// Store unlinked EarlyHintPreloader objects.
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EarlyHintHashtable mEarlyHint;
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};
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} // namespace mozilla::net
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#endif // mozilla_net_EarlyHintRegistrar_h__
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