1 /** 2 * Copyright © 2017 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 "config.h" 17 18 #ifndef CONTROL_USE_JSON 19 #include "../utils/flight_recorder.hpp" 20 #include "argument.hpp" 21 #include "manager.hpp" 22 #else 23 #include "json/manager.hpp" 24 #endif 25 #include "sdbusplus.hpp" 26 #include "sdeventplus.hpp" 27 28 #include <phosphor-logging/log.hpp> 29 #include <sdbusplus/bus.hpp> 30 #include <sdeventplus/event.hpp> 31 #include <sdeventplus/source/signal.hpp> 32 #include <stdplus/signal.hpp> 33 34 using namespace phosphor::fan::control; 35 using namespace phosphor::logging; 36 37 int main(int argc, char* argv[]) 38 { 39 auto event = phosphor::fan::util::SDEventPlus::getEvent(); 40 41 #ifndef CONTROL_USE_JSON 42 phosphor::fan::util::ArgumentParser args(argc, argv); 43 if (argc != 2) 44 { 45 args.usage(argv); 46 return 1; 47 } 48 49 Mode mode; 50 51 if (args["init"] == "true") 52 { 53 mode = Mode::init; 54 } 55 else if (args["control"] == "true") 56 { 57 mode = Mode::control; 58 } 59 else 60 { 61 args.usage(argv); 62 return 1; 63 } 64 #endif 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 phosphor::fan::util::SDBusPlus::getBus().attach_event( 69 event.get(), SD_EVENT_PRIORITY_NORMAL); 70 71 try 72 { 73 #ifdef CONTROL_USE_JSON 74 phosphor::fan::control::json::FlightRecorder::instance().log("main", 75 "Startup"); 76 json::Manager manager(event); 77 78 // Handle loading fan control's config file(s) 79 phosphor::fan::JsonConfig config( 80 std::bind(&json::Manager::load, &manager)); 81 82 // Enable SIGHUP handling to reload JSON configs 83 stdplus::signal::block(SIGHUP); 84 sdeventplus::source::Signal signal( 85 event, SIGHUP, 86 std::bind(&json::Manager::sighupHandler, &manager, 87 std::placeholders::_1, std::placeholders::_2)); 88 89 // Enable SIGUSR1 handling to dump the flight recorder 90 stdplus::signal::block(SIGUSR1); 91 sdeventplus::source::Signal sigUsr1( 92 event, SIGUSR1, 93 std::bind(&json::Manager::sigUsr1Handler, &manager, 94 std::placeholders::_1, std::placeholders::_2)); 95 96 phosphor::fan::util::SDBusPlus::getBus().request_name(CONTROL_BUSNAME); 97 #else 98 Manager manager(phosphor::fan::util::SDBusPlus::getBus(), event, mode); 99 100 // Init mode will just set fans to max and delay 101 if (mode == Mode::init) 102 { 103 manager.doInit(event); 104 return 0; 105 } 106 #endif 107 return event.loop(); 108 } 109 // Log the useful metadata on these exceptions and let the app 110 // return 1 so it is restarted without a core dump. 111 catch (const phosphor::fan::util::DBusServiceError& e) 112 { 113 log<level::ERR>("Uncaught DBus service lookup failure exception", 114 entry("PATH=%s", e.path.c_str()), 115 entry("INTERFACE=%s", e.interface.c_str())); 116 } 117 catch (const phosphor::fan::util::DBusMethodError& e) 118 { 119 log<level::ERR>("Uncaught DBus method failure exception", 120 entry("BUSNAME=%s", e.busName.c_str()), 121 entry("PATH=%s", e.path.c_str()), 122 entry("INTERFACE=%s", e.interface.c_str()), 123 entry("METHOD=%s", e.method.c_str())); 124 } 125 catch (const phosphor::fan::util::DBusPropertyError& e) 126 { 127 log<level::ERR>("Uncaught DBus property access failure exception", 128 entry("BUSNAME=%s", e.busName.c_str()), 129 entry("PATH=%s", e.path.c_str()), 130 entry("INTERFACE=%s", e.interface.c_str()), 131 entry("PROPERTY=%s", e.property.c_str())); 132 } 133 catch (std::exception& e) 134 { 135 #ifdef CONTROL_USE_JSON 136 phosphor::fan::control::json::FlightRecorder::instance().log( 137 "main", "Unexpected exception exit"); 138 phosphor::fan::control::json::FlightRecorder::instance().dump(); 139 #endif 140 throw; 141 } 142 143 #ifdef CONTROL_USE_JSON 144 phosphor::fan::control::json::FlightRecorder::instance().log( 145 "main", "Abnormal exit"); 146 phosphor::fan::control::json::FlightRecorder::instance().dump(); 147 #endif 148 149 return 1; 150 } 151