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Diffstat (limited to 'src/prefetcher/main.cc')
| -rw-r--r-- | src/prefetcher/main.cc | 190 |
1 files changed, 0 insertions, 190 deletions
diff --git a/src/prefetcher/main.cc b/src/prefetcher/main.cc deleted file mode 100644 index 94ba141..0000000 --- a/src/prefetcher/main.cc +++ /dev/null @@ -1,190 +0,0 @@ -// Copyright (C) 2019 The Android Open Source Project -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -#include "common/debug.h" -#include "common/loggers.h" -#include "prefetcher/prefetcher_daemon.h" - -#include <android-base/parseint.h> -#include <android-base/logging.h> - -#include <iostream> -#include <optional> -#include <string_view> -#include <string> -#include <vector> - -#include <signal.h> - -#if defined(IORAP_PREFETCHER_MAIN) - -namespace iorap::prefetcher { - -void Usage(char** argv) { - std::cerr << "Usage: " << argv[0] << " [--input-fd=#] [--output-fd=#]" << std::endl; - std::cerr << "" << std::endl; - std::cerr << " Run the readahead daemon which can prefetch files given a command." << std::endl; - std::cerr << "" << std::endl; - std::cerr << " Optional flags:" << std::endl; - std::cerr << " --help,-h Print this Usage." << std::endl; - std::cerr << " --input-fd,-if Input FD (default stdin)." << std::endl; - std::cerr << " --output-fd,-of Output FD (default stdout)." << std::endl; - std::cerr << " --use-sockets,-us Use AF_UNIX sockets (default off)." << std::endl; - std::cerr << " --command-format=[text|binary],-cf (default text)." << std::endl; - std::cerr << " --verbose,-v Set verbosity (default off)." << std::endl; - std::cerr << " --wait,-w Wait for key stroke before continuing (default off)." << std::endl; - exit(1); -} - -int Main(int argc, char** argv) { - // Go to system logcat + stderr when running from command line. - android::base::InitLogging(argv, iorap::common::StderrAndLogdLogger{android::base::SYSTEM}); - - bool wait_for_keystroke = false; - bool enable_verbose = false; - - bool command_format_text = false; // false = binary. - - int arg_input_fd = -1; - int arg_output_fd = -1; - - std::vector<std::string> arg_input_filenames; - bool arg_use_sockets = false; - - LOG(VERBOSE) << "argparse: argc=" << argc; - - for (int arg = 1; arg < argc; ++arg) { - std::string argstr = argv[arg]; - bool has_arg_next = (arg+1)<argc; - std::string arg_next = has_arg_next ? argv[arg+1] : ""; - - LOG(VERBOSE) << "argparse: argv[" << arg << "]=" << argstr; - - if (argstr == "--help" || argstr == "-h") { - Usage(argv); - } else if (argstr == "--input-fd" || argstr == "-if") { - if (!has_arg_next) { - LOG(ERROR) << "--input-fd=<numeric-value>"; - Usage(argv); - } - if (!::android::base::ParseInt(arg_next, /*out*/&arg_input_fd)) { - LOG(ERROR) << "--input-fd value must be numeric"; - Usage(argv); - } - } else if (argstr == "--output-fd" || argstr == "-of") { - if (!has_arg_next) { - LOG(ERROR) << "--output-fd=<numeric-value>"; - Usage(argv); - } - if (!::android::base::ParseInt(arg_next, /*out*/&arg_output_fd)) { - LOG(ERROR) << "--output-fd value must be numeric"; - Usage(argv); - } - } else if (argstr == "--command-format=" || argstr == "-cf") { - if (!has_arg_next) { - LOG(ERROR) << "--command-format=text|binary"; - Usage(argv); - } - if (arg_next == "text") { - command_format_text = true; - } else if (arg_next == "binary") { - command_format_text = false; - } else { - LOG(ERROR) << "--command-format must be one of {text,binary}"; - Usage(argv); - } - } else if (argstr == "--use-sockets" || argstr == "-us") { - arg_use_sockets = true; - } else if (argstr == "--verbose" || argstr == "-v") { - enable_verbose = true; - } else if (argstr == "--wait" || argstr == "-w") { - wait_for_keystroke = true; - } else { - arg_input_filenames.push_back(argstr); - } - } - - if (enable_verbose) { - android::base::SetMinimumLogSeverity(android::base::VERBOSE); - - LOG(VERBOSE) << "Verbose check"; - LOG(VERBOSE) << "Debug check: " << ::iorap::kIsDebugBuild; - } else { - android::base::SetMinimumLogSeverity(android::base::DEBUG); - } - - LOG(VERBOSE) << "argparse: argc=" << argc; - - for (int arg = 1; arg < argc; ++arg) { - std::string argstr = argv[arg]; - - LOG(VERBOSE) << "argparse: argv[" << arg << "]=" << argstr; - } - - // Useful to attach a debugger... - // 1) $> iorap.cmd.readahead -w <args> - // 2) $> gdbclient <pid> - if (wait_for_keystroke) { - LOG(INFO) << "Self pid: " << getpid(); - - raise(SIGSTOP); - // LOG(INFO) << "Press any key to continue..."; - // std::cin >> wait_for_keystroke; - } - - // auto system_call = std::make_unique<SystemCallImpl>(); - // TODO: mock readahead calls? - // - // Uncomment this if we want to leave the process around to inspect it from adb shell. - // sleep(100000); - - int return_code = 0; - - LOG(VERBOSE) << "Hello world"; - - if (arg_input_fd == -1) { - arg_input_fd = STDIN_FILENO; - } - if (arg_output_fd == -1) { - arg_output_fd = STDOUT_FILENO; - } - - PrefetcherForkParameters params{}; - params.input_fd = arg_input_fd; - params.output_fd = arg_output_fd; - params.format_text = command_format_text; - params.use_sockets = arg_use_sockets; - - LOG(VERBOSE) << "main: Starting PrefetcherDaemon: " - << "input_fd=" << params.input_fd - << ",output_fd=" << params.output_fd; - { - PrefetcherDaemon daemon; - // Blocks until receiving an exit command. - daemon.Main(std::move(params)); - } - LOG(VERBOSE) << "main: Terminating"; - - // 0 -> successfully executed all commands. - // 1 -> failed along the way (#on_error and also see the error logs). - return return_code; -} - -} // namespace iorap::prefetcher - -int main(int argc, char** argv) { - return ::iorap::prefetcher::Main(argc, argv); -} - -#endif // IORAP_PREFETCHER_MAIN |