legacy-libs/grpc-cloned/deps/grpc/src/core/ext/transport/chttp2/transport/frame_goaway.h

   1 /*
   2  *
   3  * Copyright 2015 gRPC authors.
   4  *
   5  * Licensed under the Apache License, Version 2.0 (the "License");
   6  * you may not use this file except in compliance with the License.
   7  * You may obtain a copy of the License at
   8  *
   9  *     http://www.apache.org/licenses/LICENSE-2.0
  10  *
  11  * Unless required by applicable law or agreed to in writing, software
  12  * distributed under the License is distributed on an "AS IS" BASIS,
  13  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  14  * See the License for the specific language governing permissions and
  15  * limitations under the License.
  16  *
  17  */
  18
  19 #ifndef GRPC_CORE_EXT_TRANSPORT_CHTTP2_TRANSPORT_FRAME_GOAWAY_H
  20 #define GRPC_CORE_EXT_TRANSPORT_CHTTP2_TRANSPORT_FRAME_GOAWAY_H
  21
  22 #include <grpc/support/port_platform.h>
  23
  24 #include <grpc/slice.h>
  25 #include <grpc/slice_buffer.h>
  26 #include "src/core/ext/transport/chttp2/transport/frame.h"
  27
  28 typedef enum {
  29   GRPC_CHTTP2_GOAWAY_LSI0,
  30   GRPC_CHTTP2_GOAWAY_LSI1,
  31   GRPC_CHTTP2_GOAWAY_LSI2,
  32   GRPC_CHTTP2_GOAWAY_LSI3,
  33   GRPC_CHTTP2_GOAWAY_ERR0,
  34   GRPC_CHTTP2_GOAWAY_ERR1,
  35   GRPC_CHTTP2_GOAWAY_ERR2,
  36   GRPC_CHTTP2_GOAWAY_ERR3,
  37   GRPC_CHTTP2_GOAWAY_DEBUG
  38 } grpc_chttp2_goaway_parse_state;
  39
  40 typedef struct {
  41   grpc_chttp2_goaway_parse_state state;
  42   uint32_t last_stream_id;
  43   uint32_t error_code;
  44   char* debug_data;
  45   uint32_t debug_length;
  46   uint32_t debug_pos;
  47 } grpc_chttp2_goaway_parser;
  48
  49 void grpc_chttp2_goaway_parser_init(grpc_chttp2_goaway_parser* p);
  50 void grpc_chttp2_goaway_parser_destroy(grpc_chttp2_goaway_parser* p);
  51 grpc_error* grpc_chttp2_goaway_parser_begin_frame(
  52     grpc_chttp2_goaway_parser* parser, uint32_t length, uint8_t flags);
  53 grpc_error* grpc_chttp2_goaway_parser_parse(void* parser,
  54                                             grpc_chttp2_transport* t,
  55                                             grpc_chttp2_stream* s,
  56                                             const grpc_slice& slice,
  57                                             int is_last);
  58
  59 void grpc_chttp2_goaway_append(uint32_t last_stream_id, uint32_t error_code,
  60                                const grpc_slice& debug_data,
  61                                grpc_slice_buffer* slice_buffer);
  62
  63 #endif /* GRPC_CORE_EXT_TRANSPORT_CHTTP2_TRANSPORT_FRAME_GOAWAY_H */