michael@0: /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
michael@0: 
michael@0: /* This Source Code Form is subject to the terms of the Mozilla Public
michael@0:  * License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0:  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0: 
michael@0: #ifndef mozilla_net_NullHttpTransaction_h
michael@0: #define mozilla_net_NullHttpTransaction_h
michael@0: 
michael@0: #include "nsAHttpTransaction.h"
michael@0: #include "mozilla/Attributes.h"
michael@0: 
michael@0: // This is the minimal nsAHttpTransaction implementation. A NullHttpTransaction
michael@0: // can be used to drive connection level semantics (such as SSL handshakes
michael@0: // tunnels) so that a nsHttpConnection becomes fully established in
michael@0: // anticipation of a real transaction needing to use it soon.
michael@0: 
michael@0: namespace mozilla { namespace net {
michael@0: 
michael@0: class nsAHttpConnection;
michael@0: class nsHttpConnectionInfo;
michael@0: class nsHttpRequestHead;
michael@0: 
michael@0: class NullHttpTransaction MOZ_FINAL : public nsAHttpTransaction
michael@0: {
michael@0: public:
michael@0:   NS_DECL_THREADSAFE_ISUPPORTS
michael@0:   NS_DECL_NSAHTTPTRANSACTION
michael@0: 
michael@0:   NullHttpTransaction(nsHttpConnectionInfo *ci,
michael@0:                       nsIInterfaceRequestor *callbacks,
michael@0:                       uint32_t caps);
michael@0:   ~NullHttpTransaction();
michael@0: 
michael@0:   nsHttpConnectionInfo *ConnectionInfo() { return mConnectionInfo; }
michael@0: 
michael@0:   // Overload of nsAHttpTransaction methods
michael@0:   bool IsNullTransaction() MOZ_OVERRIDE MOZ_FINAL { return true; }
michael@0:   bool ResponseTimeoutEnabled() const MOZ_OVERRIDE MOZ_FINAL {return true; }
michael@0:   PRIntervalTime ResponseTimeout() MOZ_OVERRIDE MOZ_FINAL
michael@0:   {
michael@0:     return PR_SecondsToInterval(15);
michael@0:   }
michael@0: 
michael@0: private:
michael@0: 
michael@0:   nsresult mStatus;
michael@0:   uint32_t mCaps;
michael@0:   // mCapsToClear holds flags that should be cleared in mCaps, e.g. unset
michael@0:   // NS_HTTP_REFRESH_DNS when DNS refresh request has completed to avoid
michael@0:   // redundant requests on the network. To deal with raciness, only unsetting
michael@0:   // bitfields should be allowed: 'lost races' will thus err on the
michael@0:   // conservative side, e.g. by going ahead with a 2nd DNS refresh.
michael@0:   uint32_t mCapsToClear;
michael@0:   nsRefPtr<nsAHttpConnection> mConnection;
michael@0:   nsCOMPtr<nsIInterfaceRequestor> mCallbacks;
michael@0:   nsRefPtr<nsHttpConnectionInfo> mConnectionInfo;
michael@0:   nsHttpRequestHead *mRequestHead;
michael@0:   bool mIsDone;
michael@0: };
michael@0: 
michael@0: }} // namespace mozilla::net
michael@0: 
michael@0: #endif // mozilla_net_NullHttpTransaction_h