| // Copyright 2019 The Fuchsia Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #ifndef SRC_BRINGUP_BIN_CONSOLE_CONSOLE_H_ |
| #define SRC_BRINGUP_BIN_CONSOLE_CONSOLE_H_ |
| |
| #include <fidl/fuchsia.hardware.pty/cpp/wire.h> |
| #include <fidl/fuchsia.logger/cpp/wire.h> |
| #include <lib/async-loop/cpp/loop.h> |
| #include <lib/async-loop/default.h> |
| #include <lib/fit/function.h> |
| #include <lib/zx/eventpair.h> |
| |
| #include <thread> |
| #include <vector> |
| |
| #include "fifo.h" |
| |
| class Console : public fidl::WireServer<fuchsia_hardware_pty::Device> { |
| public: |
| // Maximum amount of data that will be written to tx_sink_() per call. |
| static constexpr size_t kMaxWriteSize = 256; |
| |
| // Function to be invoked in order to receive new data. It should return |
| // a byte at a time and to block until a byte is available. If it returns an |
| // error, the RX loop will terminate. |
| using RxSource = fit::function<zx_status_t(uint8_t* byte)>; |
| |
| // Function to be invoked in order to transmit data. If it returns an error, |
| // it is assumed that no data from this request was transmitted. |
| using TxSink = fit::function<zx_status_t(const uint8_t* buffer, size_t length)>; |
| |
| Console(async_dispatcher_t* dispatcher, zx::eventpair event1, zx::eventpair event2, |
| RxSource rx_source, TxSink tx_sink); |
| ~Console() override; |
| |
| private: |
| // Thread for getting tty input via zx_debug_read |
| void DebugReaderThread(); |
| |
| // Functions to handle fuchsia.hardware.pty.Device |
| void Clone2(Clone2RequestView request, Clone2Completer::Sync& completer) final; |
| void Close(CloseCompleter::Sync& completer) final; |
| void Query(QueryCompleter::Sync& completer) final; |
| void Read(ReadRequestView request, ReadCompleter::Sync& completer) final; |
| void Write(WriteRequestView request, WriteCompleter::Sync& completer) final; |
| void Describe(DescribeCompleter::Sync& completer) final; |
| |
| void OpenClient(OpenClientRequestView request, OpenClientCompleter::Sync& completer) final; |
| void ClrSetFeature(ClrSetFeatureRequestView request, |
| ClrSetFeatureCompleter::Sync& completer) final; |
| void GetWindowSize(GetWindowSizeCompleter::Sync& completer) final; |
| void MakeActive(MakeActiveRequestView request, MakeActiveCompleter::Sync& completer) final; |
| void ReadEvents(ReadEventsCompleter::Sync& completer) final; |
| void SetWindowSize(SetWindowSizeRequestView request, |
| SetWindowSizeCompleter::Sync& completer) final; |
| |
| async_dispatcher_t* dispatcher_; |
| Fifo rx_fifo_; |
| zx::eventpair rx_event_; |
| RxSource rx_source_; |
| TxSink tx_sink_; |
| std::thread rx_thread_; |
| }; |
| |
| #endif // SRC_BRINGUP_BIN_CONSOLE_CONSOLE_H_ |