xref: /aosp_15_r20/external/openscreen/util/big_endian.cc (revision 3f982cf4871df8771c9d4abe6e9a6f8d829b2736)
1*3f982cf4SFabien Sanglard // Copyright 2019 The Chromium Authors. All rights reserved.
2*3f982cf4SFabien Sanglard // Use of this source code is governed by a BSD-style license that can be
3*3f982cf4SFabien Sanglard // found in the LICENSE file.
4*3f982cf4SFabien Sanglard 
5*3f982cf4SFabien Sanglard #include "util/big_endian.h"
6*3f982cf4SFabien Sanglard 
7*3f982cf4SFabien Sanglard namespace openscreen {
8*3f982cf4SFabien Sanglard 
BigEndianReader(const uint8_t * buffer,size_t length)9*3f982cf4SFabien Sanglard BigEndianReader::BigEndianReader(const uint8_t* buffer, size_t length)
10*3f982cf4SFabien Sanglard     : BigEndianBuffer(buffer, length) {}
11*3f982cf4SFabien Sanglard 
Read(size_t length,void * out)12*3f982cf4SFabien Sanglard bool BigEndianReader::Read(size_t length, void* out) {
13*3f982cf4SFabien Sanglard   const uint8_t* read_position = current();
14*3f982cf4SFabien Sanglard   if (Skip(length)) {
15*3f982cf4SFabien Sanglard     memcpy(out, read_position, length);
16*3f982cf4SFabien Sanglard     return true;
17*3f982cf4SFabien Sanglard   }
18*3f982cf4SFabien Sanglard   return false;
19*3f982cf4SFabien Sanglard }
20*3f982cf4SFabien Sanglard 
BigEndianWriter(uint8_t * buffer,size_t length)21*3f982cf4SFabien Sanglard BigEndianWriter::BigEndianWriter(uint8_t* buffer, size_t length)
22*3f982cf4SFabien Sanglard     : BigEndianBuffer(buffer, length) {}
23*3f982cf4SFabien Sanglard 
Write(const void * buffer,size_t length)24*3f982cf4SFabien Sanglard bool BigEndianWriter::Write(const void* buffer, size_t length) {
25*3f982cf4SFabien Sanglard   uint8_t* write_position = current();
26*3f982cf4SFabien Sanglard   if (Skip(length)) {
27*3f982cf4SFabien Sanglard     memcpy(write_position, buffer, length);
28*3f982cf4SFabien Sanglard     return true;
29*3f982cf4SFabien Sanglard   }
30*3f982cf4SFabien Sanglard   return false;
31*3f982cf4SFabien Sanglard }
32*3f982cf4SFabien Sanglard 
33*3f982cf4SFabien Sanglard }  // namespace openscreen
34