1 #include "config.h"
2
3 #include "host_state_manager.hpp"
4
5 #include <getopt.h>
6
7 #include <sdbusplus/bus.hpp>
8
9 #include <cstdlib>
10 #include <exception>
11 #include <filesystem>
12 #include <format>
13 #include <iostream>
14
15 constexpr auto LEGACY_HOST_STATE_PERSIST_PATH =
16 "/var/lib/phosphor-state-manager/requestedHostTransition";
17
main(int argc,char ** argv)18 int main(int argc, char** argv)
19 {
20 size_t hostId = 0;
21
22 int arg;
23 int optIndex = 0;
24
25 static struct option longOpts[] = {{"host", required_argument, 0, 'h'},
26 {0, 0, 0, 0}};
27
28 while ((arg = getopt_long(argc, argv, "h:", longOpts, &optIndex)) != -1)
29 {
30 switch (arg)
31 {
32 case 'h':
33 hostId = std::stoul(optarg);
34 break;
35 default:
36 break;
37 }
38 }
39
40 namespace fs = std::filesystem;
41
42 auto bus = sdbusplus::bus::new_default();
43
44 auto hostBusName = std::string{HOST_BUSNAME} + std::to_string(hostId);
45 auto objPathInst = std::string{HOST_OBJPATH} + std::to_string(hostId);
46
47 if (hostId == 0)
48 {
49 // Host State Manager was only support single-host and there only one
50 // file to store persist values, to support multi-host state management,
51 // each service instance access new file path format with prefix 'hostN'
52 // now.For backward compatibility if there is a legacy persist file
53 // exist, rename it to the new file format of host0.
54
55 fs::path legacyPath{LEGACY_HOST_STATE_PERSIST_PATH};
56 fs::path newPath{std::format(HOST_STATE_PERSIST_PATH, hostId)};
57 if (fs::exists(legacyPath))
58 {
59 fs::rename(legacyPath, newPath);
60 }
61 }
62
63 // Add sdbusplus ObjectManager.
64 sdbusplus::server::manager_t objManager(bus, objPathInst.c_str());
65
66 phosphor::state::manager::Host manager(bus, objPathInst.c_str(), hostId);
67
68 auto dir = fs::path(HOST_STATE_PERSIST_PATH).parent_path();
69 fs::create_directories(dir);
70
71 // For backwards compatibility, request a busname without host id if
72 // input id is 0.
73 if (hostId == 0)
74 {
75 bus.request_name(HOST_BUSNAME);
76 }
77
78 bus.request_name(hostBusName.c_str());
79
80 while (true)
81 {
82 bus.process_discard();
83 bus.wait();
84 }
85 return 0;
86 }
87