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 "argument.hpp" 20 #include "manager.hpp" 21 #else 22 #include "json/manager.hpp" 23 #endif 24 #include "sdbusplus.hpp" 25 #include "sdeventplus.hpp" 26 27 #include <phosphor-logging/log.hpp> 28 #include <sdbusplus/bus.hpp> 29 #include <sdeventplus/event.hpp> 30 #include <sdeventplus/source/signal.hpp> 31 #include <stdplus/signal.hpp> 32 33 using namespace phosphor::fan::control; 34 using namespace phosphor::logging; 35 36 int main(int argc, char* argv[]) 37 { 38 auto event = phosphor::fan::util::SDEventPlus::getEvent(); 39 40 #ifndef CONTROL_USE_JSON 41 phosphor::fan::util::ArgumentParser args(argc, argv); 42 if (argc != 2) 43 { 44 args.usage(argv); 45 return 1; 46 } 47 48 Mode mode; 49 50 if (args["init"] == "true") 51 { 52 mode = Mode::init; 53 } 54 else if (args["control"] == "true") 55 { 56 mode = Mode::control; 57 } 58 else 59 { 60 args.usage(argv); 61 return 1; 62 } 63 #endif 64 65 // Attach the event object to the bus object so we can 66 // handle both sd_events (for the timers) and dbus signals. 67 phosphor::fan::util::SDBusPlus::getBus().attach_event( 68 event.get(), SD_EVENT_PRIORITY_NORMAL); 69 70 try 71 { 72 #ifdef CONTROL_USE_JSON 73 json::Manager manager(event); 74 75 // Handle loading fan control's config file(s) 76 phosphor::fan::JsonConfig config( 77 std::bind(&json::Manager::load, &manager)); 78 79 // Enable SIGHUP handling to reload JSON configs 80 stdplus::signal::block(SIGHUP); 81 sdeventplus::source::Signal signal( 82 event, SIGHUP, 83 std::bind(&json::Manager::sighupHandler, &manager, 84 std::placeholders::_1, std::placeholders::_2)); 85 86 // Enable SIGUSR1 handling to dump the flight recorder 87 stdplus::signal::block(SIGUSR1); 88 sdeventplus::source::Signal sigUsr1( 89 event, SIGUSR1, 90 std::bind(&json::Manager::sigUsr1Handler, &manager, 91 std::placeholders::_1, std::placeholders::_2)); 92 93 phosphor::fan::util::SDBusPlus::getBus().request_name(CONTROL_BUSNAME); 94 #else 95 Manager manager(phosphor::fan::util::SDBusPlus::getBus(), event, mode); 96 97 // Init mode will just set fans to max and delay 98 if (mode == Mode::init) 99 { 100 manager.doInit(event); 101 return 0; 102 } 103 #endif 104 return event.loop(); 105 } 106 // Log the useful metadata on these exceptions and let the app 107 // return 1 so it is restarted without a core dump. 108 catch (const phosphor::fan::util::DBusServiceError& e) 109 { 110 log<level::ERR>("Uncaught DBus service lookup failure exception", 111 entry("PATH=%s", e.path.c_str()), 112 entry("INTERFACE=%s", e.interface.c_str())); 113 } 114 catch (const phosphor::fan::util::DBusMethodError& e) 115 { 116 log<level::ERR>("Uncaught DBus method failure exception", 117 entry("BUSNAME=%s", e.busName.c_str()), 118 entry("PATH=%s", e.path.c_str()), 119 entry("INTERFACE=%s", e.interface.c_str()), 120 entry("METHOD=%s", e.method.c_str())); 121 } 122 catch (const phosphor::fan::util::DBusPropertyError& e) 123 { 124 log<level::ERR>("Uncaught DBus property access failure exception", 125 entry("BUSNAME=%s", e.busName.c_str()), 126 entry("PATH=%s", e.path.c_str()), 127 entry("INTERFACE=%s", e.interface.c_str()), 128 entry("PROPERTY=%s", e.property.c_str())); 129 } 130 131 return 1; 132 } 133