/* * Copyright (c) Huawei Technologies Co., Ltd. 2022. All rights reserved. * 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 #include "command_helper.h" int CommandHelper::Start(int* argc, char*** argv, const std::string& help) { if ((*argc) == 1) { // no argument specified, we speculate the user may do not know the command usage. // Hence print the usage help and continue std::cout << tipHelp_ << std::endl; return 0; } if (help.compare(SUPPORTED_ARGS[ARG_NONG]) == 0) { // user does not issue help bool printTip {false}; for (int count = 1; count < (*argc); ++count) { if ((*argv)[count] and strlen((*argv)[count]) != 0) { // undefined commandline argument specified, we speculate the user may do // not know the command usage. Hence print the usage help and continue printTip = true; std::cout << "CommandHelper WARN: argument " << (*argv)[count] << " specified but unused" << std::endl; } } if (printTip) { std::cout << tipHelp_ << std::endl; } return 0; } DoHelp(help); return -1; } void CommandHelper::DoHelp(const std::string& help) { if (help.compare(SUPPORTED_ARGS[ARG_HELP]) == 0) { std::cout << helpHelp_ << std::endl; } else if (help.compare(SUPPORTED_ARGS[ARG_OUTPUT_FILE]) == 0) { std::cout << outputFileHelp_ << std::endl; } else if (help.compare(SUPPORTED_ARGS[ARG_EXCLUDE_TRACER]) == 0) { std::cout << excludeTracerHelp_ << std::endl; } else if (help.compare(SUPPORTED_ARGS[ARG_MAX_STACK_DEPTH]) == 0) { std::cout << maxStackDepthHelp_ << std::endl; } else if (help.compare(SUPPORTED_ARGS[ARG_DURATION]) == 0) { std::cout << durationHelp_ << std::endl; } else if (help.compare(SUPPORTED_ARGS[ARG_EVENTS]) == 0) { std::cout << eventsHelp_ << std::endl; } else if (help.compare(SUPPORTED_ARGS[ARG_PIDS]) == 0) { std::cout << pidsHelp_ << std::endl; } else if (help.compare(SUPPORTED_ARGS[ARG_DUMP_EVENTS]) == 0) { std::cout << dumpEventsHelp_ << std::endl; } else if (help.compare(SUPPORTED_ARGS[ARG_UNWIND_STACK]) == 0) { std::cout << unwindStackHelp_ << std::endl; } else if (help.compare(SUPPORTED_ARGS[ARG_BPF_LOG_LEVEL]) == 0) { std::cout << bpfLogLevelHelp_ << std::endl; } else if (help.compare(SUPPORTED_ARGS[ARG_BPF_LOG_FILE]) == 0) { std::cout << bpfLogFileHelp_ << std::endl; } else if (help.compare(SUPPORTED_ARGS[ARG_LIBBPF_LOG_LEVEL]) == 0) { std::cout << libbpfLogLevelHelp_ << std::endl; } else if (help.compare(SUPPORTED_ARGS[ARG_LIBBPF_LOG_FILE]) == 0) { std::cout << libbpfFileHelp_ << std::endl; } else if (help.compare(SUPPORTED_ARGS[ARG_SERVER_START]) == 0) { std::cout << serverStartHelp_ << std::endl; } else if (help.compare(SUPPORTED_ARGS[ARG_SERVER_STOP]) == 0) { std::cout << serverStopHelp_ << std::endl; } else if (help.compare(SUPPORTED_ARGS[ARG_HHLOG_LEVEL]) == 0) { std::cout << hhLogLevelHelp_ << std::endl; } else if (help.compare(SUPPORTED_ARGS[ARG_HHLOG_FILE]) == 0) { std::cout << hhLogFileHelp_ << std::endl; } else { std::cout << tipHelp_ << std::endl; } return; }