| /* |
| * |
| * Copyright 2015-2016, Google Inc. |
| * All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions are |
| * met: |
| * |
| * * Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * * Redistributions in binary form must reproduce the above |
| * copyright notice, this list of conditions and the following disclaimer |
| * in the documentation and/or other materials provided with the |
| * distribution. |
| * * Neither the name of Google Inc. nor the names of its |
| * contributors may be used to endorse or promote products derived from |
| * this software without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| * |
| */ |
| |
| #include <grpc++/support/byte_buffer.h> |
| #include <grpc/byte_buffer_reader.h> |
| |
| namespace grpc { |
| |
| ByteBuffer::ByteBuffer(const Slice* slices, size_t nslices) { |
| // TODO(yangg) maybe expose some core API to simplify this |
| std::vector<gpr_slice> c_slices(nslices); |
| for (size_t i = 0; i < nslices; i++) { |
| c_slices[i] = slices[i].slice_; |
| } |
| buffer_ = grpc_raw_byte_buffer_create(c_slices.data(), nslices); |
| } |
| |
| ByteBuffer::~ByteBuffer() { |
| if (buffer_) { |
| grpc_byte_buffer_destroy(buffer_); |
| } |
| } |
| |
| void ByteBuffer::Clear() { |
| if (buffer_) { |
| grpc_byte_buffer_destroy(buffer_); |
| buffer_ = nullptr; |
| } |
| } |
| |
| void ByteBuffer::Dump(std::vector<Slice>* slices) const { |
| slices->clear(); |
| if (!buffer_) { |
| return; |
| } |
| grpc_byte_buffer_reader reader; |
| grpc_byte_buffer_reader_init(&reader, buffer_); |
| gpr_slice s; |
| while (grpc_byte_buffer_reader_next(&reader, &s)) { |
| slices->push_back(Slice(s, Slice::STEAL_REF)); |
| } |
| grpc_byte_buffer_reader_destroy(&reader); |
| } |
| |
| size_t ByteBuffer::Length() const { |
| if (buffer_) { |
| return grpc_byte_buffer_length(buffer_); |
| } else { |
| return 0; |
| } |
| } |
| |
| ByteBuffer::ByteBuffer(const ByteBuffer& buf) |
| : buffer_(grpc_byte_buffer_copy(buf.buffer_)) {} |
| |
| ByteBuffer& ByteBuffer::operator=(const ByteBuffer& buf) { |
| Clear(); // first remove existing data |
| if (buf.buffer_) { |
| buffer_ = grpc_byte_buffer_copy(buf.buffer_); // then copy |
| } |
| return *this; |
| } |
| |
| } // namespace grpc |
