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/*
*
* Copyright 2015 gRPC authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
#ifndef GRPC_CORE_EXT_TRANSPORT_CHTTP2_TRANSPORT_FRAME_DATA_H
#define GRPC_CORE_EXT_TRANSPORT_CHTTP2_TRANSPORT_FRAME_DATA_H
/* Parser for GRPC streams embedded in DATA frames */
#include <grpc/support/port_platform.h>
#include <grpc/slice.h>
#include <grpc/slice_buffer.h>
#include "src/core/ext/transport/chttp2/transport/frame.h"
#include "src/core/lib/transport/byte_stream.h"
#include "src/core/lib/transport/transport.h"
typedef enum {
GRPC_CHTTP2_DATA_FH_0,
GRPC_CHTTP2_DATA_FH_1,
GRPC_CHTTP2_DATA_FH_2,
GRPC_CHTTP2_DATA_FH_3,
GRPC_CHTTP2_DATA_FH_4,
GRPC_CHTTP2_DATA_FRAME,
GRPC_CHTTP2_DATA_ERROR
} grpc_chttp2_stream_state;
namespace grpc_core {
class Chttp2IncomingByteStream;
} // namespace grpc_core
struct grpc_chttp2_data_parser {
grpc_chttp2_data_parser() = default;
~grpc_chttp2_data_parser();
grpc_chttp2_stream_state state = GRPC_CHTTP2_DATA_FH_0;
uint8_t frame_type = 0;
uint32_t frame_size = 0;
grpc_error* error = GRPC_ERROR_NONE;
bool is_frame_compressed = false;
grpc_core::Chttp2IncomingByteStream* parsing_frame = nullptr;
};
/* start processing a new data frame */
grpc_error* grpc_chttp2_data_parser_begin_frame(grpc_chttp2_data_parser* parser,
uint8_t flags,
uint32_t stream_id,
grpc_chttp2_stream* s);
/* handle a slice of a data frame - is_last indicates the last slice of a
frame */
grpc_error* grpc_chttp2_data_parser_parse(void* parser,
grpc_chttp2_transport* t,
grpc_chttp2_stream* s,
grpc_slice slice, int is_last);
void grpc_chttp2_encode_data(uint32_t id, grpc_slice_buffer* inbuf,
uint32_t write_bytes, int is_eof,
grpc_transport_one_way_stats* stats,
grpc_slice_buffer* outbuf);
grpc_error* grpc_deframe_unprocessed_incoming_frames(
grpc_chttp2_data_parser* p, grpc_chttp2_stream* s,
grpc_slice_buffer* slices, grpc_slice* slice_out,
grpc_core::OrphanablePtr<grpc_core::ByteStream>* stream_out);
#endif /* GRPC_CORE_EXT_TRANSPORT_CHTTP2_TRANSPORT_FRAME_DATA_H */
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