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-rw-r--r--netwerk/base/nsDNSPrefetch.h72
1 files changed, 72 insertions, 0 deletions
diff --git a/netwerk/base/nsDNSPrefetch.h b/netwerk/base/nsDNSPrefetch.h
new file mode 100644
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+++ b/netwerk/base/nsDNSPrefetch.h
@@ -0,0 +1,72 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* 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 nsDNSPrefetch_h___
+#define nsDNSPrefetch_h___
+
+#include <functional>
+
+#include "nsIWeakReferenceUtils.h"
+#include "nsString.h"
+#include "mozilla/TimeStamp.h"
+#include "mozilla/Attributes.h"
+#include "mozilla/BasePrincipal.h"
+
+#include "nsIDNSListener.h"
+#include "nsIRequest.h"
+#include "nsIDNSService.h"
+
+class nsIURI;
+class nsIDNSHTTPSSVCRecord;
+
+class nsDNSPrefetch final : public nsIDNSListener {
+ ~nsDNSPrefetch() = default;
+
+ public:
+ NS_DECL_THREADSAFE_ISUPPORTS
+ NS_DECL_NSIDNSLISTENER
+
+ nsDNSPrefetch(nsIURI* aURI, mozilla::OriginAttributes& aOriginAttributes,
+ nsIRequest::TRRMode aTRRMode, nsIDNSListener* aListener,
+ bool storeTiming);
+ // For fetching HTTPS RR.
+ nsDNSPrefetch(nsIURI* aURI, mozilla::OriginAttributes& aOriginAttributes,
+ nsIRequest::TRRMode aTRRMode);
+ bool TimingsValid() const {
+ return !mStartTimestamp.IsNull() && !mEndTimestamp.IsNull();
+ }
+ // Only use the two timings if TimingsValid() returns true
+ const mozilla::TimeStamp& StartTimestamp() const { return mStartTimestamp; }
+ const mozilla::TimeStamp& EndTimestamp() const { return mEndTimestamp; }
+
+ static nsresult Initialize(nsIDNSService* aDNSService);
+ static nsresult Shutdown();
+
+ // Call one of the following methods to start the Prefetch.
+ nsresult PrefetchHigh(
+ nsIDNSService::DNSFlags = nsIDNSService::RESOLVE_DEFAULT_FLAGS);
+ nsresult PrefetchMedium(
+ nsIDNSService::DNSFlags = nsIDNSService::RESOLVE_DEFAULT_FLAGS);
+ nsresult PrefetchLow(
+ nsIDNSService::DNSFlags = nsIDNSService::RESOLVE_DEFAULT_FLAGS);
+
+ nsresult FetchHTTPSSVC(
+ bool aRefreshDNS, bool aPrefetch,
+ std::function<void(nsIDNSHTTPSSVCRecord*)>&& aCallback);
+
+ private:
+ nsCString mHostname;
+ int32_t mPort{-1};
+ mozilla::OriginAttributes mOriginAttributes;
+ bool mStoreTiming;
+ nsIRequest::TRRMode mTRRMode;
+ mozilla::TimeStamp mStartTimestamp;
+ mozilla::TimeStamp mEndTimestamp;
+ nsWeakPtr mListener;
+
+ nsresult Prefetch(nsIDNSService::DNSFlags flags);
+};
+
+#endif