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 grpc_slice slice, int is_last); 57 58 void grpc_chttp2_goaway_append(uint32_t last_stream_id, uint32_t error_code, 59 grpc_slice debug_data, 60 grpc_slice_buffer* slice_buffer); 61 62 #endif /* GRPC_CORE_EXT_TRANSPORT_CHTTP2_TRANSPORT_FRAME_GOAWAY_H */ 63
