1 // Copyright 2025 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_bluetooth_proxy/internal/multibuf_writer.h" 16 17 #include "pw_assert/check.h" 18 19 namespace pw::bluetooth::proxy { 20 Create(multibuf::MultiBufAllocator & multibuf_allocator,size_t size)21pw::Result<MultiBufWriter> MultiBufWriter::Create( 22 multibuf::MultiBufAllocator& multibuf_allocator, size_t size) { 23 std::optional<multibuf::MultiBuf> buf = 24 multibuf_allocator.AllocateContiguous(size); 25 if (!buf) { 26 return Status::ResourceExhausted(); 27 } 28 return MultiBufWriter(std::move(*buf)); 29 } 30 Write(ConstByteSpan data)31Status MultiBufWriter::Write(ConstByteSpan data) { 32 StatusWithSize status = buf_.CopyFrom(data, write_offset_); 33 if (!status.ok()) { 34 return status.status(); 35 } 36 PW_CHECK_INT_EQ(status.size(), data.size()); // Specified by API. 37 38 write_offset_ += data.size(); 39 return OkStatus(); 40 } 41 42 } // namespace pw::bluetooth::proxy 43