gecko/netwerk/protocol/http/NullHttpTransaction.h

60 lines
2.0 KiB
C++

/* -*- 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 http://mozilla.org/MPL/2.0/. */
#ifndef mozilla_net_NullHttpTransaction_h
#define mozilla_net_NullHttpTransaction_h
#include "nsAHttpTransaction.h"
#include "mozilla/Attributes.h"
class nsAHttpConnection;
class nsHttpRequestHead;
class nsHttpConnectionInfo;
// 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.
namespace mozilla { namespace net {
class NullHttpTransaction MOZ_FINAL : public nsAHttpTransaction
{
public:
NS_DECL_THREADSAFE_ISUPPORTS
NS_DECL_NSAHTTPTRANSACTION
NullHttpTransaction(nsHttpConnectionInfo *ci,
nsIInterfaceRequestor *callbacks,
uint32_t caps);
~NullHttpTransaction();
nsHttpConnectionInfo *ConnectionInfo() { return mConnectionInfo; }
// An overload of nsAHttpTransaction::IsNullTransaction()
bool IsNullTransaction() { return true; }
private:
nsresult mStatus;
uint32_t mCaps;
// mCapsToClear holds flags that should be cleared in mCaps, e.g. unset
// NS_HTTP_REFRESH_DNS when DNS refresh request has completed to avoid
// redundant requests on the network. To deal with raciness, only unsetting
// bitfields should be allowed: 'lost races' will thus err on the
// conservative side, e.g. by going ahead with a 2nd DNS refresh.
uint32_t mCapsToClear;
nsRefPtr<nsAHttpConnection> mConnection;
nsCOMPtr<nsIInterfaceRequestor> mCallbacks;
nsRefPtr<nsHttpConnectionInfo> mConnectionInfo;
nsHttpRequestHead *mRequestHead;
bool mIsDone;
};
}} // namespace mozilla::net
#endif // mozilla_net_NullHttpTransaction_h