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authorMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
committerMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
commit5f8de423f190bbb79a62f804151bc24824fa32d8 (patch)
tree10027f336435511475e392454359edea8e25895d /uriloader/prefetch/nsPrefetchService.h
parent49ee0794b5d912db1f95dce6eb52d781dc210db5 (diff)
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Add m-esr52 at 52.6.0
Diffstat (limited to 'uriloader/prefetch/nsPrefetchService.h')
-rw-r--r--uriloader/prefetch/nsPrefetchService.h121
1 files changed, 121 insertions, 0 deletions
diff --git a/uriloader/prefetch/nsPrefetchService.h b/uriloader/prefetch/nsPrefetchService.h
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+++ b/uriloader/prefetch/nsPrefetchService.h
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+/* 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 "nsCPrefetchService.h"
+#include "nsIObserver.h"
+#include "nsIInterfaceRequestor.h"
+#include "nsIChannelEventSink.h"
+#include "nsIRedirectResultListener.h"
+#include "nsIWebProgressListener.h"
+#include "nsIStreamListener.h"
+#include "nsIChannel.h"
+#include "nsIURI.h"
+#include "nsWeakReference.h"
+#include "nsCOMPtr.h"
+#include "nsAutoPtr.h"
+#include "mozilla/Attributes.h"
+#include <deque>
+
+class nsPrefetchService;
+class nsPrefetchNode;
+
+//-----------------------------------------------------------------------------
+// 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 ProcessNextURI(nsPrefetchNode *aFinished);
+
+ void NotifyLoadRequested(nsPrefetchNode *node);
+ void NotifyLoadCompleted(nsPrefetchNode *node);
+ void DispatchEvent(nsPrefetchNode *node, bool aSuccess);
+
+private:
+ ~nsPrefetchService();
+
+ nsresult Prefetch(nsIURI *aURI,
+ nsIURI *aReferrerURI,
+ nsIDOMNode *aSource,
+ bool aExplicit);
+
+ void AddProgressListener();
+ void RemoveProgressListener();
+ nsresult EnqueueURI(nsIURI *aURI, nsIURI *aReferrerURI,
+ nsIDOMNode *aSource, nsPrefetchNode **node);
+ void EmptyQueue();
+
+ void StartPrefetching();
+ void StopPrefetching();
+
+ std::deque<RefPtr<nsPrefetchNode>> mQueue;
+ nsTArray<RefPtr<nsPrefetchNode>> mCurrentNodes;
+ int32_t mMaxParallelism;
+ int32_t mStopCount;
+ // true if pending document loads have ever reached zero.
+ int32_t mHaveProcessed;
+ bool mDisabled;
+
+ // 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;
+};
+
+//-----------------------------------------------------------------------------
+// nsPrefetchNode
+//-----------------------------------------------------------------------------
+
+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,
+ nsIURI *aReferrerURI,
+ nsIDOMNode *aSource);
+
+ nsresult OpenChannel();
+ nsresult CancelChannel(nsresult error);
+
+ nsCOMPtr<nsIURI> mURI;
+ nsCOMPtr<nsIURI> mReferrerURI;
+ nsTArray<nsCOMPtr<nsIWeakReference>> mSources;
+
+private:
+ ~nsPrefetchNode() {}
+
+ RefPtr<nsPrefetchService> mService;
+ nsCOMPtr<nsIChannel> mChannel;
+ nsCOMPtr<nsIChannel> mRedirectChannel;
+ int64_t mBytesRead;
+ bool mShouldFireLoadEvent;
+};
+
+#endif // !nsPrefetchService_h__