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 #if defined(PRESENCE_JSON_FILE) || \
18     (defined(PRESENCE_JSON_DBUS_INTF) && defined(PRESENCE_JSON_DBUS_PROP))
19 #include "json_config.hpp"
20 #else
21 #include "generated.hpp"
22 #endif
23 #include "sdbusplus.hpp"
24 #include <sdeventplus/event.hpp>
25 #include <functional>
26 #include <stdplus/signal.hpp>
27 #include <sdeventplus/source/signal.hpp>
28 
29 int main(void)
30 {
31     using namespace phosphor::fan;
32 
33     auto bus = sdbusplus::bus::new_default();
34     auto event = sdeventplus::Event::get_default();
35     bus.attach_event(event.get(), SD_EVENT_PRIORITY_NORMAL);
36 
37 #ifdef PRESENCE_JSON_FILE
38     // Use json file for presence config
39     presence::JsonConfig config(PRESENCE_JSON_FILE);
40 #elif defined(PRESENCE_JSON_DBUS_INTF) && defined(PRESENCE_JSON_DBUS_PROP)
41     // Use first object returned in the subtree
42     // (There should really only be one object with the config interface)
43     std::string jsonFile = "";
44     auto objects = util::SDBusPlus::getSubTree(
45         bus, "/", PRESENCE_JSON_DBUS_INTF, 0);
46     auto itObj = objects.begin();
47     if (itObj != objects.end())
48     {
49         auto itServ = itObj->second.begin();
50         if (itServ != itObj->second.end())
51         {
52             // Retrieve json config file location from dbus
53             jsonFile = util::SDBusPlus::getProperty<std::string>(
54                 bus, itServ->first, itObj->first,
55                     PRESENCE_JSON_DBUS_INTF, PRESENCE_JSON_DBUS_PROP);
56         }
57     }
58     presence::JsonConfig config(jsonFile);
59 #endif
60 
61 #if defined(PRESENCE_JSON_FILE) || \
62     (defined(PRESENCE_JSON_DBUS_INTF) && defined(PRESENCE_JSON_DBUS_PROP))
63     for (auto& p: presence::JsonConfig::get())
64     {
65         p->monitor();
66     }
67 
68     stdplus::signal::block(SIGHUP);
69     sdeventplus::source::Signal signal(event, SIGHUP,
70         std::bind(&presence::JsonConfig::sighupHandler,
71                   &config, std::placeholders::_1, std::placeholders::_2));
72 #else
73     for (auto& p: presence::ConfigPolicy::get())
74     {
75         p->monitor();
76     }
77 #endif
78 
79     return event.loop();
80 }
81