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(uint64_t postcode)
26 {
27     /* Print output to verify the example program is receiving values. */
28     std::printf("recv: 0x%" PRIx64 "\n", postcode);
29 }
30 
31 /*
32  * One can also specify custom handler that operates on
33  * sdbusplus::message::message type and pass them to constructor.
34  * e.g.
35  *
36  * static void PrintMessageMap(sdbusplus::message::message& m)
37  * {
38  *     using sdbusplus::message::variant_ns::get;
39  *     std::string messageBusName;
40  *     std::map<std::string, sdbusplus::message::variant<uint64_t>>
41  *         messageData;
42  *
43  *     m.read(messageBusName, messageData);
44  *
45  *     std::cout << "Got message from " << messageBusName << std::endl;
46  *     for (const auto& kv : messageData)
47  *     {
48  *         std::cout << "Key: " << kv.first << std::endl;
49  *         std::cout << "Value: " << get<uint64_t>(kv.second) << std::endl;
50  *     }
51  * }
52  *
53  * lpcsnoop::SnoopListen snoop(ListenBus, PrintMessageMap);
54  */
55 
56 /*
57  * This is the entry point for the application.
58  *
59  * This application simply creates an object that registers for incoming value
60  * updates for the POST code dbus object.
61  */
62 int main()
63 {
64     auto ListenBus = sdbusplus::bus::new_default();
65     lpcsnoop::SnoopListen snoop(ListenBus, printPostcode);
66 
67     while (true)
68     {
69         ListenBus.process_discard();
70         ListenBus.wait();
71     }
72 
73     return 0;
74 }
75