1 // Copyright 2019 The Pigweed Authors 2 // 3 // Licensed under the Apache License, Version 2.0 (the "License"); you may not 4 // use this file except in compliance with the License. You may obtain a copy of 5 // the License at 6 // 7 // https://www.apache.org/licenses/LICENSE-2.0 8 // 9 // Unless required by applicable law or agreed to in writing, software 10 // distributed under the License is distributed on an "AS IS" BASIS, WITHOUT 11 // WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the 12 // License for the specific language governing permissions and limitations under 13 // the License. 14 15 #include "pw_sys_io/sys_io.h" 16 17 namespace pw::sys_io { 18 ReadBytes(ByteSpan dest)19StatusWithSize ReadBytes(ByteSpan dest) { 20 for (size_t i = 0; i < dest.size_bytes(); ++i) { 21 Status result = ReadByte(&dest[i]); 22 if (!result.ok()) { 23 return StatusWithSize(result, i); 24 } 25 } 26 return StatusWithSize(dest.size_bytes()); 27 } 28 WriteBytes(ConstByteSpan src)29StatusWithSize WriteBytes(ConstByteSpan src) { 30 for (size_t i = 0; i < src.size_bytes(); ++i) { 31 Status result = WriteByte(src[i]); 32 if (!result.ok()) { 33 return StatusWithSize(result, i); 34 } 35 } 36 return StatusWithSize(src.size_bytes()); 37 } 38 39 } // namespace pw::sys_io 40