HTTP2Constants.h

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/*
 *  Copyright (c) 2015-present, Facebook, Inc.
 *  All rights reserved.
 *
 *  This source code is licensed under the BSD-style license found in the
 *  LICENSE file in the root directory of this source tree. An additional grant
 *  of patent rights can be found in the PATENTS file in the same directory.
 *
 */
#pragma once

#include <cstdint>
#include <string>
#include <proxygen/lib/http/codec/ErrorCode.h>

namespace proxygen { namespace http2 {

extern ErrorCode errorCodeToGoaway(ErrorCode code);
extern ErrorCode errorCodeToReset(ErrorCode code);

extern const uint32_t kFrameHeaderSize;
extern const uint32_t kFrameHeadersBaseMaxSize;
extern const uint32_t kFramePrioritySize;
extern const uint32_t kFrameStreamIDSize;
extern const uint32_t kFrameRstStreamSize;
extern const uint32_t kFramePushPromiseSize;
extern const uint32_t kFramePingSize;
extern const uint32_t kFrameGoawaySize;
extern const uint32_t kFrameWindowUpdateSize;
extern const uint32_t kFrameCertificateRequestSizeBase;
extern const uint32_t kFrameCertificateSizeBase;

// These constants indicate the size of the required fields in the frame
extern const uint32_t kFrameAltSvcSizeBase;

extern const uint32_t kMaxFramePayloadLengthMin;
extern const uint32_t kMaxFramePayloadLength;
extern const uint32_t kMaxStreamID;
extern const uint32_t kInitialWindow;
extern const uint32_t kMaxWindowUpdateSize;
extern const uint32_t kMaxHeaderTableSize;

// The maximum size of the data buffer caching an authenticator.
// For secondary authentication in HTTP/2.
extern const uint32_t kMaxAuthenticatorBufSize;

extern const uint32_t kMaxHeaderTableSize;
extern const std::string kConnectionPreface;

extern const std::string kProtocolString;
extern const std::string kProtocolDraftString;
extern const std::string kProtocolExperimentalString;
extern const std::string kProtocolCleartextString;
extern const std::string kProtocolSettingsHeader;

}}