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_LIB_COMPRESSION_MESSAGE_COMPRESS_H 20 #define GRPC_SRC_CORE_LIB_COMPRESSION_MESSAGE_COMPRESS_H 21 22 #include <grpc/support/port_platform.h> 23 24 #include <grpc/impl/compression_types.h> 25 #include <grpc/slice.h> 26 27 namespace grpc_core { 28 class CompressionOptions { 29 public: 30 virtual ~CompressionOptions() = default; 31 }; 32 33 // Return Compression options 34 std::unique_ptr<CompressionOptions> MakeCompressionOptions( 35 const ChannelArgs& args); 36 37 } // namespace grpc_core 38 39 40 // compress 'input' to 'output' using 'algorithm'. 41 // On success, appends compressed slices to output and returns 1. 42 // On failure, appends uncompressed slices to output and returns 0. 43 int grpc_msg_compress(grpc_compression_algorithm algorithm, 44 grpc_slice_buffer* input, grpc_slice_buffer* output, 45 const grpc_core::CompressionOptions* options); 46 47 // decompress 'input' to 'output' using 'algorithm'. 48 // On success, appends slices to output and returns 1. 49 // On failure, output is unchanged, and returns 0. 50 int grpc_msg_decompress(grpc_compression_algorithm algorithm, 51 grpc_slice_buffer* input, grpc_slice_buffer* output); 52 53 #endif // GRPC_SRC_CORE_LIB_COMPRESSION_MESSAGE_COMPRESS_H 54