| // |
| // |
| // Copyright 2015 gRPC authors. |
| // |
| // Licensed under the Apache License, Version 2.0 (the "License"); |
| // you may not use this file except in compliance with the License. |
| // You may obtain a copy of the License at |
| // |
| // http://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, software |
| // distributed under the License is distributed on an "AS IS" BASIS, |
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| // See the License for the specific language governing permissions and |
| // limitations under the License. |
| // |
| // |
| |
| #include <algorithm> |
| #include <vector> |
| |
| #include <grpc/byte_buffer.h> |
| #include <grpc/byte_buffer_reader.h> |
| #include <grpc/grpc.h> |
| #include <grpc/impl/compression_types.h> |
| #include <grpc/slice.h> |
| #include <grpcpp/support/byte_buffer.h> |
| #include <grpcpp/support/slice.h> |
| #include <grpcpp/support/status.h> |
| |
| namespace grpc { |
| |
| Status ByteBuffer::TrySingleSlice(Slice* slice) const { |
| if (!buffer_) { |
| return Status(StatusCode::FAILED_PRECONDITION, "Buffer not initialized"); |
| } |
| if ((buffer_->type == GRPC_BB_RAW) && |
| (buffer_->data.raw.compression == GRPC_COMPRESS_NONE) && |
| (buffer_->data.raw.slice_buffer.count == 1)) { |
| grpc_slice internal_slice = buffer_->data.raw.slice_buffer.slices[0]; |
| *slice = Slice(internal_slice, Slice::ADD_REF); |
| return Status::OK; |
| } else { |
| return Status(StatusCode::FAILED_PRECONDITION, |
| "Buffer isn't made up of a single uncompressed slice."); |
| } |
| } |
| |
| Status ByteBuffer::DumpToSingleSlice(Slice* slice) const { |
| if (!buffer_) { |
| return Status(StatusCode::FAILED_PRECONDITION, "Buffer not initialized"); |
| } |
| grpc_byte_buffer_reader reader; |
| if (!grpc_byte_buffer_reader_init(&reader, buffer_)) { |
| return Status(StatusCode::INTERNAL, |
| "Couldn't initialize byte buffer reader"); |
| } |
| grpc_slice s = grpc_byte_buffer_reader_readall(&reader); |
| *slice = Slice(s, Slice::STEAL_REF); |
| grpc_byte_buffer_reader_destroy(&reader); |
| return Status::OK; |
| } |
| |
| Status ByteBuffer::Dump(std::vector<Slice>* slices) const { |
| slices->clear(); |
| if (!buffer_) { |
| return Status(StatusCode::FAILED_PRECONDITION, "Buffer not initialized"); |
| } |
| grpc_byte_buffer_reader reader; |
| if (!grpc_byte_buffer_reader_init(&reader, buffer_)) { |
| return Status(StatusCode::INTERNAL, |
| "Couldn't initialize byte buffer reader"); |
| } |
| grpc_slice s; |
| while (grpc_byte_buffer_reader_next(&reader, &s)) { |
| slices->push_back(Slice(s, Slice::STEAL_REF)); |
| } |
| grpc_byte_buffer_reader_destroy(&reader); |
| return Status::OK; |
| } |
| |
| } // namespace grpc |