1 // Copyright 2020 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_hdlc/rpc_packets.h"
16
17 #include "pw_status/try.h"
18 #include "pw_sys_io/sys_io.h"
19
20 namespace pw::hdlc {
21
ReadAndProcessPackets(rpc::Server & server,rpc::ChannelOutput & output,std::span<std::byte> decode_buffer,unsigned rpc_address)22 Status ReadAndProcessPackets(rpc::Server& server,
23 rpc::ChannelOutput& output,
24 std::span<std::byte> decode_buffer,
25 unsigned rpc_address) {
26 Decoder decoder(decode_buffer);
27
28 while (true) {
29 std::byte data;
30 PW_TRY(sys_io::ReadByte(&data));
31
32 if (auto result = decoder.Process(data); result.ok()) {
33 Frame& frame = result.value();
34 if (frame.address() == rpc_address) {
35 server.ProcessPacket(frame.data(), output);
36 }
37 }
38 }
39 }
40
41 } // namespace pw::hdlc
42