SpeculativeTransaction.h

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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */

/* vim:set ts=4 sw=4 sts=4 et cin: */

/* 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 SpeculativeTransaction_h__

#define SpeculativeTransaction_h__

#include "mozilla/Maybe.h"

#include "NullHttpTransaction.h"

namespace mozilla {

namespace net {

class HTTPSRecordResolver;

class SpeculativeTransaction : public NullHttpTransaction {

 public:

  SpeculativeTransaction(nsHttpConnectionInfo* aConnInfo,

                         nsIInterfaceRequestor* aCallbacks, uint32_t aCaps,

                         std::function<void(bool)>&& aCallback = nullptr);

  already_AddRefed<SpeculativeTransaction> CreateWithNewConnInfo(

      nsHttpConnectionInfo* aConnInfo);

  virtual nsresult FetchHTTPSRR() override;

  virtual nsresult OnHTTPSRRAvailable(nsIDNSHTTPSSVCRecord* aHTTPSSVCRecord,

                                      nsISVCBRecord* aHighestPriorityRecord,

                                      const nsACString& aCname) override;

  void SetParallelSpeculativeConnectLimit(uint32_t aLimit) {

    mParallelSpeculativeConnectLimit.emplace(aLimit);

  void SetIgnoreIdle(bool aIgnoreIdle) { mIgnoreIdle.emplace(aIgnoreIdle); }

  void SetIsFromPredictor(bool aIsFromPredictor) {

    mIsFromPredictor.emplace(aIsFromPredictor);

  void SetAllow1918(bool aAllow1918) { mAllow1918.emplace(aAllow1918); }

  const Maybe<uint32_t>& ParallelSpeculativeConnectLimit() {

    return mParallelSpeculativeConnectLimit;

  const Maybe<bool>& IgnoreIdle() { return mIgnoreIdle; }

  const Maybe<bool>& IsFromPredictor() { return mIsFromPredictor; }

  const Maybe<bool>& Allow1918() { return mAllow1918; }

  void Close(nsresult aReason) override;

  nsresult ReadSegments(nsAHttpSegmentReader* aReader, uint32_t aCount,

                        uint32_t* aCountRead) override;

  void InvokeCallback();

 protected:

  virtual ~SpeculativeTransaction();

 private:

  Maybe<uint32_t> mParallelSpeculativeConnectLimit;

  Maybe<bool> mIgnoreIdle;

  Maybe<bool> mIsFromPredictor;

  Maybe<bool> mAllow1918;

  bool mTriedToWrite = false;

  std::function<void(bool)> mCloseCallback;

  RefPtr<HTTPSRecordResolver> mResolver;

};

}  // namespace net

}  // namespace mozilla

#endif  // SpeculativeTransaction_h__