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/* -*- Mode: C++; tab-width: 2; 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 */
#ifndef mozilla_net_NullHttpTransaction_h
#define mozilla_net_NullHttpTransaction_h
#include "nsAHttpTransaction.h"
#include "mozilla/Attributes.h"
#include "TimingStruct.h"
// This is the minimal nsAHttpTransaction implementation. A NullHttpTransaction
// can be used to drive connection level semantics (such as SSL handshakes
// tunnels) so that a nsHttpConnection becomes fully established in
// anticipation of a real transaction needing to use it soon.
class nsIHttpActivityObserver;
namespace mozilla {
namespace net {
class nsAHttpConnection;
class nsHttpConnectionInfo;
class nsHttpRequestHead;
// 6c445340-3b82-4345-8efa-4902c3b8805a
{ \
0x6c445340, 0x3b82, 0x4345, { \
0x8e, 0xfa, 0x49, 0x02, 0xc3, 0xb8, 0x80, 0x5a \
} \
class NullHttpTransaction : public nsAHttpTransaction {
NullHttpTransaction(nsHttpConnectionInfo* ci,
nsIInterfaceRequestor* callbacks, uint32_t caps);
[[nodiscard]] bool Claim();
void Unclaim();
// Overload of nsAHttpTransaction methods
bool IsNullTransaction() final { return true; }
NullHttpTransaction* QueryNullTransaction() final { return this; }
bool ResponseTimeoutEnabled() const final { return true; }
PRIntervalTime ResponseTimeout() final { return PR_SecondsToInterval(15); }
// We have to override this function because |mTransaction| in
// nsHalfOpenSocket could be either nsHttpTransaction or NullHttpTransaction.
// NullHttpTransaction will be activated on the connection immediately after
// creation and be never put in a pending queue, so it's OK to just return 0.
uint64_t TopLevelOuterContentWindowId() override { return 0; }
TimingStruct Timings() { return mTimings; }
mozilla::TimeStamp GetTcpConnectEnd() { return mTimings.tcpConnectEnd; }
mozilla::TimeStamp GetSecureConnectionStart() {
return mTimings.secureConnectionStart;
void SetFastOpenStatus(uint8_t aStatus) override {
mFastOpenStatus = aStatus;
virtual ~NullHttpTransaction();
nsresult mStatus;
uint32_t mCaps;
nsHttpRequestHead* mRequestHead;
bool mIsDone;
bool mClaimed;
TimingStruct mTimings;
uint8_t mFastOpenStatus;
RefPtr<nsAHttpConnection> mConnection;
nsCOMPtr<nsIInterfaceRequestor> mCallbacks;
RefPtr<nsHttpConnectionInfo> mConnectionInfo;
nsCOMPtr<nsIHttpActivityObserver> mActivityDistributor;
} // namespace net
} // namespace mozilla
#endif // mozilla_net_NullHttpTransaction_h