Line data    Source code

       1             : /*
       2             :  *
       3             :  * Copyright 2015, Google Inc.
       4             :  * All rights reserved.
       5             :  *
       6             :  * Redistribution and use in source and binary forms, with or without
       7             :  * modification, are permitted provided that the following conditions are
       8             :  * met:
       9             :  *
      10             :  *     * Redistributions of source code must retain the above copyright
      11             :  * notice, this list of conditions and the following disclaimer.
      12             :  *     * Redistributions in binary form must reproduce the above
      13             :  * copyright notice, this list of conditions and the following disclaimer
      14             :  * in the documentation and/or other materials provided with the
      15             :  * distribution.
      16             :  *     * Neither the name of Google Inc. nor the names of its
      17             :  * contributors may be used to endorse or promote products derived from
      18             :  * this software without specific prior written permission.
      19             :  *
      20             :  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
      21             :  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
      22             :  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
      23             :  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
      24             :  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
      25             :  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
      26             :  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
      27             :  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
      28             :  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
      29             :  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
      30             :  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
      31             :  *
      32             :  */
      33             : 
      34             : #include <grpc/byte_buffer_reader.h>
      35             : #include <grpc++/support/byte_buffer.h>
      36             : 
      37             : namespace grpc {
      38             : 
      39          30 : ByteBuffer::ByteBuffer(const Slice* slices, size_t nslices) {
      40             :   // TODO(yangg) maybe expose some core API to simplify this
      41          30 :   std::vector<gpr_slice> c_slices(nslices);
      42          63 :   for (size_t i = 0; i < nslices; i++) {
      43          33 :     c_slices[i] = slices[i].slice_;
      44             :   }
      45          30 :   buffer_ = grpc_raw_byte_buffer_create(c_slices.data(), nslices);
      46          30 : }
      47             : 
      48          43 : ByteBuffer::~ByteBuffer() {
      49          43 :   if (buffer_) {
      50          42 :     grpc_byte_buffer_destroy(buffer_);
      51             :   }
      52          43 : }
      53             : 
      54          13 : void ByteBuffer::Clear() {
      55          13 :   if (buffer_) {
      56          13 :     grpc_byte_buffer_destroy(buffer_);
      57          13 :     buffer_ = nullptr;
      58             :   }
      59          13 : }
      60             : 
      61          26 : void ByteBuffer::Dump(std::vector<Slice>* slices) const {
      62          26 :   slices->clear();
      63          26 :   if (!buffer_) {
      64          26 :     return;
      65             :   }
      66             :   grpc_byte_buffer_reader reader;
      67          26 :   grpc_byte_buffer_reader_init(&reader, buffer_);
      68             :   gpr_slice s;
      69          79 :   while (grpc_byte_buffer_reader_next(&reader, &s)) {
      70          27 :     slices->push_back(Slice(s, Slice::STEAL_REF));
      71             :   }
      72             : }
      73             : 
      74          25 : size_t ByteBuffer::Length() const {
      75          25 :   if (buffer_) {
      76          25 :     return grpc_byte_buffer_length(buffer_);
      77             :   } else {
      78           0 :     return 0;
      79             :   }
      80             : }
      81             : 
      82             : }  // namespace grpc