83 lines
2.5 KiB
C++
83 lines
2.5 KiB
C++
// Copyright 2021 The Pigweed Authors
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//
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// Licensed under the Apache License, Version 2.0 (the "License"); you may not
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// use this file except in compliance with the License. You may obtain a copy of
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// the License at
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//
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// https://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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// License for the specific language governing permissions and limitations under
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// the License.
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#include <array>
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#include <cstddef>
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#include <cstdint>
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#include <cstdio>
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#include "pw_assert/check.h"
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#include "pw_hdlc/rpc_channel.h"
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#include "pw_hdlc/rpc_packets.h"
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#include "pw_log/log.h"
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#include "pw_sync/mutex.h"
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#include "pw_system/config.h"
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#include "pw_system/io.h"
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#include "pw_system/rpc_server.h"
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namespace pw::system {
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namespace {
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constexpr size_t kMaxTransmissionUnit = PW_SYSTEM_MAX_TRANSMISSION_UNIT;
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hdlc::RpcChannelOutput hdlc_channel_output(GetWriter(),
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PW_SYSTEM_DEFAULT_RPC_HDLC_ADDRESS,
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"HDLC channel");
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rpc::Channel channels[] = {
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rpc::Channel::Create<kDefaultRpcChannelId>(&hdlc_channel_output)};
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rpc::Server server(channels);
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// Declare a buffer for decoding incoming HDLC frames.
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std::array<std::byte, kMaxTransmissionUnit> input_buffer;
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hdlc::Decoder decoder(input_buffer);
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std::array<std::byte, 1> data;
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} // namespace
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rpc::Server& GetRpcServer() { return server; }
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class RpcDispatchThread final : public thread::ThreadCore {
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public:
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RpcDispatchThread() = default;
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RpcDispatchThread(const RpcDispatchThread&) = delete;
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RpcDispatchThread(RpcDispatchThread&&) = delete;
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RpcDispatchThread& operator=(const RpcDispatchThread&) = delete;
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RpcDispatchThread& operator=(RpcDispatchThread&&) = delete;
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void Run() override {
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PW_LOG_INFO("Running RPC server");
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while (true) {
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auto ret_val = GetReader().Read(data);
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if (ret_val.ok()) {
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for (std::byte byte : ret_val.value()) {
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if (auto result = decoder.Process(byte); result.ok()) {
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hdlc::Frame& frame = result.value();
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if (frame.address() == PW_SYSTEM_DEFAULT_RPC_HDLC_ADDRESS) {
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server.ProcessPacket(frame.data(), hdlc_channel_output);
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}
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}
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}
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}
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}
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}
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};
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thread::ThreadCore& GetRpcDispatchThread() {
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static RpcDispatchThread rpc_dispatch_thread;
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return rpc_dispatch_thread;
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}
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} // namespace pw::system
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