blob: 3493b147bcd406853d82799feb688bb76079e6e0 [file] [log] [blame]
Vishwanatha Subbanna15b1dc12017-05-23 15:16:13 +05301/**
2 * Copyright © 2016 IBM Corporation
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#include <iostream>
18#include <cassert>
19#include "argument.hpp"
20
21namespace phosphor
22{
23namespace watchdog
24{
25
26using namespace std::string_literals;
27
William A. Kennington III5d307182018-01-23 22:00:55 -080028const std::vector<std::string> emptyArg;
Vishwanatha Subbanna15b1dc12017-05-23 15:16:13 +053029const std::string ArgumentParser::trueString = "true"s;
Vishwanatha Subbanna15b1dc12017-05-23 15:16:13 +053030
William A. Kennington III36a318c2018-01-25 22:17:11 -080031const char* ArgumentParser::optionStr = "p:s:t:ch";
Vishwanatha Subbanna15b1dc12017-05-23 15:16:13 +053032const option ArgumentParser::options[] =
33{
William A. Kennington III955629d2018-01-25 17:33:12 -080034 { "path", required_argument, nullptr, 'p' },
Vishwanatha Subbanna15b1dc12017-05-23 15:16:13 +053035 { "service", required_argument, nullptr, 's' },
36 { "target", required_argument, nullptr, 't' },
Patrick Venture09eebe32017-08-11 15:23:17 -070037 { "continue", no_argument, nullptr, 'c' },
Vishwanatha Subbanna15b1dc12017-05-23 15:16:13 +053038 { "help", no_argument, nullptr, 'h' },
39 { 0, 0, 0, 0},
40};
41
William A. Kennington III6c094a22018-01-29 12:09:29 -080042ArgumentParser::ArgumentParser(int argc, char * const argv[])
Vishwanatha Subbanna15b1dc12017-05-23 15:16:13 +053043{
William A. Kennington III5d307182018-01-23 22:00:55 -080044 int option;
45 int opt_idx = 0;
William A. Kennington III87284912018-01-23 22:07:25 -080046
47 // We have to reset optind because getopt_long keeps global state
48 // and uses optind to track what argv index it needs to process next.
49 // Since this object may be instantiated more than once or test suites may
50 // already process instructions, optind may not be initialized to point to
51 // the beginning of our argv.
52 optind = 0;
William A. Kennington III5d307182018-01-23 22:00:55 -080053 while (-1 != (option = getopt_long(argc, argv, optionStr, options, &opt_idx)))
Vishwanatha Subbanna15b1dc12017-05-23 15:16:13 +053054 {
William A. Kennington III5d307182018-01-23 22:00:55 -080055 if (option == '?' || option == 'h')
Vishwanatha Subbanna15b1dc12017-05-23 15:16:13 +053056 {
57 usage(argv);
58 exit(-1);
59 }
60
William A. Kennington III5d307182018-01-23 22:00:55 -080061 auto i = &options[opt_idx];
62 while (i->val && i->val != option)
Vishwanatha Subbanna15b1dc12017-05-23 15:16:13 +053063 {
64 ++i;
65 }
66
67 if (i->val)
68 {
William A. Kennington III5d307182018-01-23 22:00:55 -080069 arguments[i->name].push_back(optarg ? optarg : trueString);
Vishwanatha Subbanna15b1dc12017-05-23 15:16:13 +053070 }
William A. Kennington III5d307182018-01-23 22:00:55 -080071
72 opt_idx = 0;
Vishwanatha Subbanna15b1dc12017-05-23 15:16:13 +053073 }
74}
75
William A. Kennington III5d307182018-01-23 22:00:55 -080076const std::vector<std::string>& ArgumentParser::operator[](const std::string& opt)
Vishwanatha Subbanna15b1dc12017-05-23 15:16:13 +053077{
78 auto i = arguments.find(opt);
79 if (i == arguments.end())
80 {
William A. Kennington III5d307182018-01-23 22:00:55 -080081 return emptyArg;
Vishwanatha Subbanna15b1dc12017-05-23 15:16:13 +053082 }
83 else
84 {
85 return i->second;
86 }
87}
88
William A. Kennington III6c094a22018-01-29 12:09:29 -080089void ArgumentParser::usage(char * const argv[])
Vishwanatha Subbanna15b1dc12017-05-23 15:16:13 +053090{
91 std::cerr << "Usage: " << argv[0] << " options\n";
92 std::cerr << "Options:\n";
William A. Kennington III27df4b52018-02-02 16:02:05 -080093 std::cerr << " --help Print this menu\n";
William A. Kennington III180b6902018-02-22 14:29:57 -080094 std::cerr << " --path=<Dbus Object path> Dbus Object path. "
95 "Ex: /xyz/openbmc_project/state/watchdog/host0\n";
96 std::cerr << " --service=<Dbus Service name> Dbus Service name. "
97 "Ex: xyz.openbmc_project.State.Watchdog.Host\n";
98 std::cerr << " [--target=<systemd unit>] Systemd unit to be called "
99 "on timeout for all actions but NONE. Deprecated, use "
William A. Kennington III27df4b52018-02-02 16:02:05 -0800100 "--action_target instead.\n";
William A. Kennington III180b6902018-02-22 14:29:57 -0800101 std::cerr << " [--action_target=<action>=<systemd unit>] Map of action to "
102 "systemd unit to be called on timeout if that action is "
William A. Kennington III27df4b52018-02-02 16:02:05 -0800103 "set for ExpireAction when the timer expires.\n";
William A. Kennington III180b6902018-02-22 14:29:57 -0800104 std::cerr << " [--continue] Continue daemon after "
105 "watchdog timeout.\n";
Vishwanatha Subbanna15b1dc12017-05-23 15:16:13 +0530106}
107} // namespace watchdog
108} // namespace phosphor