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_SRC_CORE_EXT_TRANSPORT_CHTTP2_TRANSPORT_BIN_ENCODER_H 20 #define GRPC_SRC_CORE_EXT_TRANSPORT_CHTTP2_TRANSPORT_BIN_ENCODER_H 21 22 #include <grpc/support/port_platform.h> 23 24 #include <stdint.h> 25 26 #include <grpc/slice.h> 27 28 // base64 encode a slice. Returns a new slice, does not take ownership of the 29 // input 30 grpc_slice grpc_chttp2_base64_encode(const grpc_slice& input); 31 32 // Compress a slice with the static huffman encoder detailed in the hpack 33 // standard. Returns a new slice, does not take ownership of the input 34 grpc_slice grpc_chttp2_huffman_compress(const grpc_slice& input); 35 36 // equivalent to: 37 // grpc_slice x = grpc_chttp2_base64_encode(input); 38 // grpc_slice y = grpc_chttp2_huffman_compress(x); 39 // grpc_core::CSliceUnref( x); 40 // return y; 41 // *wire_size is the length of the base64 encoded string prior to huffman 42 // compression (as is needed for hpack table math) 43 grpc_slice grpc_chttp2_base64_encode_and_huffman_compress( 44 const grpc_slice& input, uint32_t* wire_size); 45 46 #endif // GRPC_SRC_CORE_EXT_TRANSPORT_CHTTP2_TRANSPORT_BIN_ENCODER_H 47