gecko/netwerk/protocol/http/ASpdySession.h

77 lines
2.4 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_ASpdySession_h
#define mozilla_net_ASpdySession_h
#include "nsAHttpTransaction.h"
#include "nsAHttpConnection.h"
#include "prinrval.h"
#include "nsString.h"
class nsISocketTransport;
namespace mozilla { namespace net {
// This is designed to handle up to 2 concrete protocol levels
// simultaneously
//
// Currently supported are v3 (preferred), and v2
// network.protocol.http.spdy.enabled.v2 (and v3) prefs can enable/disable
// them.
class ASpdySession : public nsAHttpTransaction
{
public:
virtual bool AddStream(nsAHttpTransaction *, int32_t) = 0;
virtual bool CanReuse() = 0;
virtual bool RoomForMoreStreams() = 0;
virtual PRIntervalTime IdleTime() = 0;
virtual void ReadTimeoutTick(PRIntervalTime now) = 0;
virtual void DontReuse() = 0;
static ASpdySession *NewSpdySession(uint32_t version,
nsAHttpTransaction *,
nsISocketTransport *,
int32_t);
virtual void PrintDiagnostics (nsCString &log) = 0;
const static uint32_t kSendingChunkSize = 4096;
const static uint32_t kTCPSendBufferSize = 131072;
// until we have an API that can push back on receiving data (right now
// WriteSegments is obligated to accept data and buffer) there is no
// reason to throttle with the rwin other than in server push
// scenarios.
const static uint32_t kInitialRwin = 256 * 1024 * 1024;
};
// this is essentially a single instantiation as a member of nsHttpHandler.
// It could be all static except using static ctors of XPCOM objects is a
// bad idea.
class SpdyInformation
{
public:
SpdyInformation();
~SpdyInformation() {}
// determine if a version of the protocol is enabled. The primary
// version is index 0, the secondary version is index 1.
bool ProtocolEnabled(uint32_t index);
// lookup a version enum based on an npn string. returns NS_OK if
// string was known.
nsresult GetNPNVersionIndex(const nsACString &npnString, uint8_t *result);
uint8_t Version[2];
nsCString VersionString[2];
};
}} // namespace mozilla::net
#endif // mozilla_net_ASpdySession_h