Wyatt Hepler | 2253040 | 2021-07-30 23:40:40 -0700 | [diff] [blame] | 1 | // Copyright 2021 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 | // Simple RPC server with the transfer service registered. Reads HDLC frames |
Alexei Frolov | fad8e85 | 2021-08-16 13:58:51 -0700 | [diff] [blame] | 16 | // with RPC packets through a socket. The transfer service reads and writes to |
| 17 | // files within a given directory. The name of a file is its transfer ID. |
Wyatt Hepler | 2253040 | 2021-07-30 23:40:40 -0700 | [diff] [blame] | 18 | |
| 19 | #include <cstddef> |
Alexei Frolov | fad8e85 | 2021-08-16 13:58:51 -0700 | [diff] [blame] | 20 | #include <filesystem> |
| 21 | #include <string> |
Wyatt Hepler | 2253040 | 2021-07-30 23:40:40 -0700 | [diff] [blame] | 22 | #include <thread> |
| 23 | #include <variant> |
Alexei Frolov | fad8e85 | 2021-08-16 13:58:51 -0700 | [diff] [blame] | 24 | #include <vector> |
Wyatt Hepler | 2253040 | 2021-07-30 23:40:40 -0700 | [diff] [blame] | 25 | |
| 26 | #include "pw_assert/check.h" |
| 27 | #include "pw_log/log.h" |
| 28 | #include "pw_rpc_system_server/rpc_server.h" |
| 29 | #include "pw_rpc_system_server/socket.h" |
Alexei Frolov | fad8e85 | 2021-08-16 13:58:51 -0700 | [diff] [blame] | 30 | #include "pw_stream/std_file_stream.h" |
Alexei Frolov | 4fd8c80 | 2021-11-09 09:49:25 -0800 | [diff] [blame] | 31 | #include "pw_thread/detached_thread.h" |
| 32 | #include "pw_thread_stl/options.h" |
Wyatt Hepler | 2253040 | 2021-07-30 23:40:40 -0700 | [diff] [blame] | 33 | #include "pw_transfer/transfer.h" |
Alexei Frolov | fad8e85 | 2021-08-16 13:58:51 -0700 | [diff] [blame] | 34 | #include "pw_transfer_test/test_server.raw_rpc.pb.h" |
Wyatt Hepler | 2253040 | 2021-07-30 23:40:40 -0700 | [diff] [blame] | 35 | |
| 36 | namespace pw::transfer { |
| 37 | namespace { |
| 38 | |
Alexei Frolov | fad8e85 | 2021-08-16 13:58:51 -0700 | [diff] [blame] | 39 | class FileTransferHandler final : public ReadWriteHandler { |
Wyatt Hepler | 2253040 | 2021-07-30 23:40:40 -0700 | [diff] [blame] | 40 | public: |
Alexei Frolov | fad8e85 | 2021-08-16 13:58:51 -0700 | [diff] [blame] | 41 | FileTransferHandler(TransferService& service, |
| 42 | uint32_t transfer_id, |
| 43 | const char* path) |
| 44 | : ReadWriteHandler(transfer_id), service_(service), path_(path) { |
| 45 | service_.RegisterHandler(*this); |
| 46 | } |
Wyatt Hepler | 2253040 | 2021-07-30 23:40:40 -0700 | [diff] [blame] | 47 | |
Alexei Frolov | fad8e85 | 2021-08-16 13:58:51 -0700 | [diff] [blame] | 48 | ~FileTransferHandler() { service_.UnregisterHandler(*this); } |
| 49 | |
| 50 | Status PrepareRead() final { |
| 51 | PW_LOG_DEBUG("Preparing read for file %s", path_.c_str()); |
| 52 | set_reader(stream_.emplace<stream::StdFileReader>(path_.c_str())); |
Wyatt Hepler | 2253040 | 2021-07-30 23:40:40 -0700 | [diff] [blame] | 53 | return OkStatus(); |
| 54 | } |
| 55 | |
Alexei Frolov | fad8e85 | 2021-08-16 13:58:51 -0700 | [diff] [blame] | 56 | void FinalizeRead(Status) final { |
| 57 | std::get<stream::StdFileReader>(stream_).Close(); |
| 58 | } |
| 59 | |
| 60 | Status PrepareWrite() final { |
| 61 | PW_LOG_DEBUG("Preparing write for file %s", path_.c_str()); |
| 62 | set_writer(stream_.emplace<stream::StdFileWriter>(path_.c_str())); |
Wyatt Hepler | 2253040 | 2021-07-30 23:40:40 -0700 | [diff] [blame] | 63 | return OkStatus(); |
| 64 | } |
| 65 | |
Alexei Frolov | fad8e85 | 2021-08-16 13:58:51 -0700 | [diff] [blame] | 66 | Status FinalizeWrite(Status) final { |
| 67 | std::get<stream::StdFileWriter>(stream_).Close(); |
Wyatt Hepler | 2253040 | 2021-07-30 23:40:40 -0700 | [diff] [blame] | 68 | return OkStatus(); |
| 69 | } |
| 70 | |
Wyatt Hepler | 2253040 | 2021-07-30 23:40:40 -0700 | [diff] [blame] | 71 | private: |
Alexei Frolov | fad8e85 | 2021-08-16 13:58:51 -0700 | [diff] [blame] | 72 | TransferService& service_; |
| 73 | std::string path_; |
| 74 | std::variant<std::monostate, stream::StdFileReader, stream::StdFileWriter> |
Wyatt Hepler | 2253040 | 2021-07-30 23:40:40 -0700 | [diff] [blame] | 75 | stream_; |
Alexei Frolov | fad8e85 | 2021-08-16 13:58:51 -0700 | [diff] [blame] | 76 | }; |
| 77 | |
Alexei Frolov | 39d8c5c | 2021-11-24 10:16:31 -0800 | [diff] [blame] | 78 | class TestServerService |
| 79 | : public pw_rpc::raw::TestServer::Service<TestServerService> { |
Alexei Frolov | fad8e85 | 2021-08-16 13:58:51 -0700 | [diff] [blame] | 80 | public: |
| 81 | TestServerService(TransferService& transfer_service) |
| 82 | : transfer_service_(transfer_service) {} |
| 83 | |
| 84 | void set_directory(const char* directory) { directory_ = directory; } |
| 85 | |
Wyatt Hepler | b15c55b | 2022-02-11 09:26:05 -0800 | [diff] [blame] | 86 | void ReloadTransferFiles(ConstByteSpan, rpc::RawUnaryResponder&) { |
Alexei Frolov | fad8e85 | 2021-08-16 13:58:51 -0700 | [diff] [blame] | 87 | LoadFileHandlers(); |
Alexei Frolov | fad8e85 | 2021-08-16 13:58:51 -0700 | [diff] [blame] | 88 | } |
| 89 | |
| 90 | void LoadFileHandlers() { |
| 91 | PW_LOG_INFO("Reloading file handlers from %s", directory_.c_str()); |
| 92 | file_transfer_handlers_.clear(); |
| 93 | |
| 94 | for (const auto& entry : std::filesystem::directory_iterator(directory_)) { |
| 95 | if (!entry.is_regular_file()) { |
| 96 | continue; |
| 97 | } |
| 98 | |
| 99 | int transfer_id = std::atoi(entry.path().filename().c_str()); |
| 100 | if (transfer_id > 0) { |
| 101 | PW_LOG_DEBUG("Found transfer file %d", transfer_id); |
| 102 | file_transfer_handlers_.emplace_back( |
| 103 | std::make_shared<FileTransferHandler>( |
| 104 | transfer_service_, transfer_id, entry.path().c_str())); |
| 105 | } |
| 106 | } |
| 107 | } |
| 108 | |
| 109 | private: |
| 110 | TransferService& transfer_service_; |
| 111 | std::string directory_; |
| 112 | std::vector<std::shared_ptr<FileTransferHandler>> file_transfer_handlers_; |
Wyatt Hepler | 2253040 | 2021-07-30 23:40:40 -0700 | [diff] [blame] | 113 | }; |
| 114 | |
Alexei Frolov | 563946f | 2021-08-05 18:58:48 -0700 | [diff] [blame] | 115 | constexpr size_t kChunkSizeBytes = 256; |
| 116 | constexpr size_t kMaxReceiveSizeBytes = 1024; |
| 117 | |
Alexei Frolov | 22ee114 | 2022-02-03 13:59:01 -0800 | [diff] [blame] | 118 | std::array<std::byte, kChunkSizeBytes> chunk_buffer; |
| 119 | std::array<std::byte, kChunkSizeBytes> encode_buffer; |
| 120 | transfer::Thread<4, 4> transfer_thread(chunk_buffer, encode_buffer); |
| 121 | TransferService transfer_service(transfer_thread, kMaxReceiveSizeBytes); |
Alexei Frolov | fad8e85 | 2021-08-16 13:58:51 -0700 | [diff] [blame] | 122 | TestServerService test_server_service(transfer_service); |
Wyatt Hepler | 2253040 | 2021-07-30 23:40:40 -0700 | [diff] [blame] | 123 | |
Alexei Frolov | fad8e85 | 2021-08-16 13:58:51 -0700 | [diff] [blame] | 124 | void RunServer(int socket_port, const char* directory) { |
Wyatt Hepler | 82d499b | 2021-08-23 09:13:16 -0700 | [diff] [blame] | 125 | rpc::system_server::set_socket_port(socket_port); |
Wyatt Hepler | 2253040 | 2021-07-30 23:40:40 -0700 | [diff] [blame] | 126 | |
Alexei Frolov | fad8e85 | 2021-08-16 13:58:51 -0700 | [diff] [blame] | 127 | test_server_service.set_directory(directory); |
| 128 | test_server_service.LoadFileHandlers(); |
Wyatt Hepler | 2253040 | 2021-07-30 23:40:40 -0700 | [diff] [blame] | 129 | |
| 130 | rpc::system_server::Init(); |
Wyatt Hepler | 7566bc8 | 2022-02-15 15:09:00 -0800 | [diff] [blame] | 131 | rpc::system_server::Server().RegisterService(test_server_service, |
| 132 | transfer_service); |
Wyatt Hepler | 2253040 | 2021-07-30 23:40:40 -0700 | [diff] [blame] | 133 | |
Alexei Frolov | 22ee114 | 2022-02-03 13:59:01 -0800 | [diff] [blame] | 134 | thread::DetachedThread(thread::stl::Options(), transfer_thread); |
Alexei Frolov | 4fd8c80 | 2021-11-09 09:49:25 -0800 | [diff] [blame] | 135 | |
Wyatt Hepler | 2253040 | 2021-07-30 23:40:40 -0700 | [diff] [blame] | 136 | PW_LOG_INFO("Starting pw_rpc server"); |
Wyatt Hepler | 82d499b | 2021-08-23 09:13:16 -0700 | [diff] [blame] | 137 | PW_CHECK_OK(rpc::system_server::Start()); |
Wyatt Hepler | 2253040 | 2021-07-30 23:40:40 -0700 | [diff] [blame] | 138 | } |
| 139 | |
| 140 | } // namespace |
| 141 | } // namespace pw::transfer |
| 142 | |
Wyatt Hepler | 82d499b | 2021-08-23 09:13:16 -0700 | [diff] [blame] | 143 | int main(int argc, char* argv[]) { |
Alexei Frolov | fad8e85 | 2021-08-16 13:58:51 -0700 | [diff] [blame] | 144 | if (argc != 3) { |
| 145 | PW_LOG_ERROR("Usage: %s PORT DIR", argv[0]); |
Wyatt Hepler | 82d499b | 2021-08-23 09:13:16 -0700 | [diff] [blame] | 146 | return 1; |
| 147 | } |
Alexei Frolov | fad8e85 | 2021-08-16 13:58:51 -0700 | [diff] [blame] | 148 | |
| 149 | pw::transfer::RunServer(std::atoi(argv[1]), argv[2]); |
Wyatt Hepler | 2253040 | 2021-07-30 23:40:40 -0700 | [diff] [blame] | 150 | return 0; |
| 151 | } |