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/*
*
* Copyright 2014, Google Inc.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following disclaimer
* in the documentation and/or other materials provided with the
* distribution.
* * Neither the name of Google Inc. nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
*/
#ifndef __GRPC_INTERNAL_TRANSPORT_CHTTP2_FRAME_H__
#define __GRPC_INTERNAL_TRANSPORT_CHTTP2_FRAME_H__
#include <grpc/support/port_platform.h>
/* Common definitions for frame handling in the chttp2 transport */
typedef enum {
GRPC_CHTTP2_PARSE_OK,
GRPC_CHTTP2_STREAM_ERROR,
GRPC_CHTTP2_CONNECTION_ERROR
} grpc_chttp2_parse_error;
typedef struct {
gpr_uint8 end_of_stream;
gpr_uint8 need_flush_reads;
gpr_uint8 metadata_boundary;
gpr_uint8 ack_settings;
gpr_uint8 send_ping_ack;
gpr_uint8 process_ping_reply;
gpr_uint32 window_update;
} grpc_chttp2_parse_state;
#define GRPC_CHTTP2_FRAME_DATA 0
#define GRPC_CHTTP2_FRAME_HEADER 1
#define GRPC_CHTTP2_FRAME_CONTINUATION 9
#define GRPC_CHTTP2_FRAME_RST_STREAM 3
#define GRPC_CHTTP2_FRAME_SETTINGS 4
#define GRPC_CHTTP2_FRAME_PING 6
#define GRPC_CHTTP2_FRAME_WINDOW_UPDATE 8
#define GRPC_CHTTP2_MAX_PAYLOAD_LENGTH ((1 << 14) - 1)
#define GRPC_CHTTP2_DATA_FLAG_END_STREAM 1
#define GRPC_CHTTP2_FLAG_ACK 1
#define GRPC_CHTTP2_DATA_FLAG_END_HEADERS 4
#define GRPC_CHTTP2_DATA_FLAG_PADDED 8
#define GRPC_CHTTP2_FLAG_HAS_PRIORITY 0x20
#endif /* __GRPC_INTERNAL_TRANSPORT_CHTTP2_FRAME_H__ */
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