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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 17:32:43 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 17:32:43 +0000 |
commit | 6bf0a5cb5034a7e684dcc3500e841785237ce2dd (patch) | |
tree | a68f146d7fa01f0134297619fbe7e33db084e0aa /uriloader/prefetch/nsPrefetchService.h | |
parent | Initial commit. (diff) | |
download | thunderbird-upstream.tar.xz thunderbird-upstream.zip |
Adding upstream version 1:115.7.0.upstream/1%115.7.0upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r-- | uriloader/prefetch/nsPrefetchService.h | 130 |
1 files changed, 130 insertions, 0 deletions
diff --git a/uriloader/prefetch/nsPrefetchService.h b/uriloader/prefetch/nsPrefetchService.h new file mode 100644 index 0000000000..7b931ba52c --- /dev/null +++ b/uriloader/prefetch/nsPrefetchService.h @@ -0,0 +1,130 @@ +/* This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ + +#ifndef nsPrefetchService_h__ +#define nsPrefetchService_h__ + +#include "nsIObserver.h" +#include "nsIInterfaceRequestor.h" +#include "nsIChannelEventSink.h" +#include "nsIPrefetchService.h" +#include "nsIRedirectResultListener.h" +#include "nsIWebProgressListener.h" +#include "nsIStreamListener.h" +#include "nsIChannel.h" +#include "nsIURI.h" +#include "nsWeakReference.h" +#include "nsCOMPtr.h" +#include "mozilla/Attributes.h" +#include <deque> + +class nsPrefetchService; +class nsPrefetchNode; +class nsIReferrerInfo; + +//----------------------------------------------------------------------------- +// nsPrefetchService +//----------------------------------------------------------------------------- + +class nsPrefetchService final : public nsIPrefetchService, + public nsIWebProgressListener, + public nsIObserver, + public nsSupportsWeakReference { + public: + NS_DECL_ISUPPORTS + NS_DECL_NSIPREFETCHSERVICE + NS_DECL_NSIWEBPROGRESSLISTENER + NS_DECL_NSIOBSERVER + + nsPrefetchService(); + + nsresult Init(); + void RemoveNodeAndMaybeStartNextPrefetchURI(nsPrefetchNode* aFinished); + void ProcessNextPrefetchURI(); + + void NotifyLoadRequested(nsPrefetchNode* node); + void NotifyLoadCompleted(nsPrefetchNode* node); + void DispatchEvent(nsPrefetchNode* node, bool aSuccess); + + private: + ~nsPrefetchService(); + + nsresult Prefetch(nsIURI* aURI, nsIReferrerInfo* aReferrerInfo, + nsINode* aSource, bool aExplicit); + + nsresult Preload(nsIURI* aURI, nsIReferrerInfo* aReferrerInfo, + nsINode* aSource, nsContentPolicyType aPolicyType); + + void AddProgressListener(); + void RemoveProgressListener(); + nsresult EnqueueURI(nsIURI* aURI, nsIReferrerInfo* aReferrerInfo, + nsINode* aSource, nsPrefetchNode** node); + void EmptyPrefetchQueue(); + + void StartPrefetching(); + void StopPrefetching(); + void StopCurrentPrefetchsPreloads(bool aPreload); + void StopAll(); + nsresult CheckURIScheme(nsIURI* aURI, nsIReferrerInfo* aReferrerInfo); + + std::deque<RefPtr<nsPrefetchNode>> mPrefetchQueue; + nsTArray<RefPtr<nsPrefetchNode>> mCurrentNodes; + int32_t mMaxParallelism; + int32_t mStopCount; + bool mHaveProcessed; + bool mPrefetchDisabled; + + // In usual case prefetch does not start until all normal loads are done. + // Aggressive mode ignores normal loads and just start prefetch ASAP. + // It's mainly for testing purpose and discoraged for normal use; + // see https://bugzilla.mozilla.org/show_bug.cgi?id=1281415 for details. + bool mAggressive; +}; + +//----------------------------------------------------------------------------- +// nsPreFetchingNode +//----------------------------------------------------------------------------- + +class nsPrefetchNode final : public nsIStreamListener, + public nsIInterfaceRequestor, + public nsIChannelEventSink, + public nsIRedirectResultListener { + public: + NS_DECL_ISUPPORTS + NS_DECL_NSIREQUESTOBSERVER + NS_DECL_NSISTREAMLISTENER + NS_DECL_NSIINTERFACEREQUESTOR + NS_DECL_NSICHANNELEVENTSINK + NS_DECL_NSIREDIRECTRESULTLISTENER + + nsPrefetchNode(nsPrefetchService* aPrefetchService, nsIURI* aURI, + nsIReferrerInfo* aReferrerInfo, nsINode* aSource, + nsContentPolicyType aPolicyType, bool aPreload); + + nsresult OpenChannel(); + nsresult CancelChannel(nsresult error); + + nsCOMPtr<nsIURI> mURI; + nsCOMPtr<nsIReferrerInfo> mReferrerInfo; + nsTArray<nsWeakPtr> mSources; + + // The policy type to be used for fetching the resource. + nsContentPolicyType mPolicyType; + // nsPrefetchNode is used for prefetching and preloading resource. + // mPreload is true if a resource is preloaded. Preloads and + // prefetches are fetched in different phases (during load and + // after a page load), therefore we need to distinguish them. + bool mPreload; + + private: + ~nsPrefetchNode() {} + + RefPtr<nsPrefetchService> mService; + nsCOMPtr<nsIChannel> mChannel; + nsCOMPtr<nsIChannel> mRedirectChannel; + int64_t mBytesRead; + bool mShouldFireLoadEvent; +}; + +#endif // !nsPrefetchService_h__ |