1 /**
2  * Copyright 2017 Google Inc.
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 "lpcsnoop/snoop_listen.hpp"
18 
19 #include <cinttypes>
20 #include <cstdio>
21 #include <iostream>
22 #include <memory>
23 
24 /* Example PostCode handler which simply prints them */
25 static void printPostcode(postcode_t postcode)
26 {
27     /* Print output to verify the example program is receiving values. */
28     std::printf("recv: 0x%" PRIx64 "\n",
29                 std::get<primary_post_code_t>(postcode));
30 }
31 
32 /*
33  * One can also specify custom handler that operates on
34  * sdbusplus::message::message type and pass them to constructor.
35  * e.g.
36  *
37  * static void PrintMessageMap(sdbusplus::message::message& m)
38  * {
39  *     std::string messageBusName;
40  *     std::map<std::string, std::variant<uint64_t>> messageData;
41  *
42  *     m.read(messageBusName, messageData);
43  *
44  *     std::cout << "Got message from " << messageBusName << std::endl;
45  *     for (const auto& kv : messageData)
46  *     {
47  *         std::cout << "Key: " << kv.first << std::endl;
48  *         std::cout << "Value: " << get<uint64_t>(kv.second) << std::endl;
49  *     }
50  * }
51  *
52  * lpcsnoop::SnoopListen snoop(ListenBus, PrintMessageMap);
53  */
54 
55 /*
56  * This is the entry point for the application.
57  *
58  * This application simply creates an object that registers for incoming value
59  * updates for the POST code dbus object.
60  */
61 int main()
62 {
63     auto ListenBus = sdbusplus::bus::new_default();
64     lpcsnoop::SnoopListen snoop(ListenBus, printPostcode);
65 
66     while (true)
67     {
68         ListenBus.process_discard();
69         ListenBus.wait();
70     }
71 
72     return 0;
73 }
74