1 // 2 // Copyright 2015 The Android Open Source Project 3 // 4 // Licensed under the Apache License, Version 2.0 (the "License"); 5 // you may not use this file except in compliance with the License. 6 // You may obtain a copy of the License at 7 // 8 // http://www.apache.org/licenses/LICENSE-2.0 9 // 10 // Unless required by applicable law or agreed to in writing, software 11 // distributed under the License is distributed on an "AS IS" BASIS, 12 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 // See the License for the specific language governing permissions and 14 // limitations under the License. 15 // 16 17 #pragma once 18 19 #include <string> 20 #include <memory> 21 22 #include "base/files/scoped_file.h" 23 #include "base/message_loop/message_loop.h" 24 25 namespace test_vendor_lib { 26 27 // Manages communications between test channel and the controller. Mirrors the 28 // HciTransport for the test channel. 29 class TestChannelTransport : public base::MessageLoopForIO::Watcher { 30 public: 31 TestChannelTransport(bool enabled, int port); 32 33 ~TestChannelTransport() = default; 34 35 // Waits for a connection request from the test channel program and 36 // allocates the file descriptor to watch for run-time parameters at. This 37 // file descriptor gets stored in |fd_|. 38 bool SetUp(); 39 40 int GetFd(); 41 42 // Because it imposes a different flow of work, the test channel must be 43 // actively enabled to be used. |enabled_| is set by the vendor manager. 44 bool IsEnabled(); 45 46 // Turns the test channel off for use in circumstances where an error occurs 47 // and leaving the channel on would crash Bluetooth (e.g. if the test channel 48 // is unable to bind to its socket, Bluetooth should still start without the 49 // channel enabled). 50 void Disable(); 51 52 // Sets the callback that fires when data is read in 53 // |OnFileCanReadWithoutBlocking|. 54 void RegisterCommandHandler( 55 std::function<void(const std::string&, const std::vector<std::string>&)> 56 callback); 57 58 private: 59 // base::MessageLoopForIO::Watcher overrides: 60 void OnFileCanReadWithoutBlocking(int fd) override; 61 62 void OnFileCanWriteWithoutBlocking(int fd) override; 63 64 std::function<void(const std::string&, const std::vector<std::string>&)> 65 command_handler_; 66 67 // File descriptor to watch for test hook data. 68 std::unique_ptr<base::ScopedFD> fd_; 69 70 // TODO(dennischeng): Get port and enabled flag from a config file. 71 int port_; 72 bool enabled_; 73 74 DISALLOW_COPY_AND_ASSIGN(TestChannelTransport); 75 }; 76 77 } // namespace test_vendor_lib 78
