1 /**
2  * Copyright © 2019 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 #include "psu_manager.hpp"
17 
18 #include <CLI/CLI.hpp>
19 #include <phosphor-logging/log.hpp>
20 #include <sdbusplus/bus.hpp>
21 #include <sdeventplus/event.hpp>
22 
23 #include <filesystem>
24 
25 using namespace phosphor::power;
26 
27 int main(int argc, char* argv[])
28 {
29     try
30     {
31         using namespace phosphor::logging;
32 
33         CLI::App app{"OpenBMC Power Supply Unit Monitor"};
34 
35         std::string configfile;
36         app.add_option("-c,--config", configfile,
37                        "JSON configuration file path");
38 
39         // Read the arguments.
40         CLI11_PARSE(app, argc, argv);
41         if (configfile.empty())
42         {
43             if (std::filesystem::exists(
44                     "/etc/phosphor-psu-monitor/psu_config.json"))
45             {
46                 configfile = "/etc/phosphor-psu-monitor/psu_config.json";
47             }
48             else
49             {
50                 configfile = "/usr/share/phosphor-psu-monitor/psu_config.json";
51             }
52         }
53 
54         if (!std::filesystem::exists(configfile))
55         {
56             log<level::ERR>((std::string("Configuration file does not exist: "
57                                          "FILENAME=") +
58                              configfile)
59                                 .c_str());
60             return -1;
61         }
62 
63         auto bus = sdbusplus::bus::new_default();
64         auto event = sdeventplus::Event::get_default();
65 
66         // Attach the event object to the bus object so we can
67         // handle both sd_events (for the timers) and dbus signals.
68         bus.attach_event(event.get(), SD_EVENT_PRIORITY_NORMAL);
69 
70         manager::PSUManager manager(bus, event, configfile);
71 
72         return manager.run();
73     }
74     catch (const std::exception& e)
75     {
76         log<level::ERR>(e.what());
77         return -2;
78     }
79     catch (...)
80     {
81         log<level::ERR>("Caught unexpected exception type");
82         return -3;
83     }
84 }
85