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      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_PING_H
     20 #define GRPC_CORE_EXT_TRANSPORT_CHTTP2_TRANSPORT_FRAME_PING_H
     21 
     22 #include <grpc/support/port_platform.h>
     23 
     24 #include <grpc/slice.h>
     25 #include "src/core/ext/transport/chttp2/transport/frame.h"
     26 
     27 typedef struct {
     28   uint8_t byte;
     29   uint8_t is_ack;
     30   uint64_t opaque_8bytes;
     31 } grpc_chttp2_ping_parser;
     32 
     33 grpc_slice grpc_chttp2_ping_create(uint8_t ack, uint64_t opaque_8bytes);
     34 
     35 grpc_error* grpc_chttp2_ping_parser_begin_frame(grpc_chttp2_ping_parser* parser,
     36                                                 uint32_t length, uint8_t flags);
     37 grpc_error* grpc_chttp2_ping_parser_parse(void* parser,
     38                                           grpc_chttp2_transport* t,
     39                                           grpc_chttp2_stream* s,
     40                                           grpc_slice slice, int is_last);
     41 
     42 /* Test-only function for disabling ping ack */
     43 void grpc_set_disable_ping_ack(bool disable_ping_ack);
     44 
     45 #endif /* GRPC_CORE_EXT_TRANSPORT_CHTTP2_TRANSPORT_FRAME_PING_H */
     46