1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
|
#pragma once
#include <sdbusplus/bus.hpp>
#include "xyz/openbmc_project/State/BMC/server.hpp"
namespace phosphor
{
namespace state
{
namespace manager
{
/** @class BMC
* @brief OpenBMC BMC state management implementation.
* @details A concrete implementation for xyz.openbmc_project.State.BMC
* DBus API.
*/
class BMC : public sdbusplus::server::object::object<
sdbusplus::xyz::openbmc_project::State::server::BMC>
{
public:
/** @brief Constructs BMC State Manager
*
* @param[in] bus - The Dbus bus object
* @param[in] busName - The Dbus name to own
* @param[in] objPath - The Dbus object path
*/
BMC(sdbusplus::bus::bus& bus,
const char* objPath) :
sdbusplus::server::object::object<
sdbusplus::xyz::openbmc_project::State::server::BMC>(
bus, objPath, true),
bus(bus),
stateSignal(
std::make_unique<
decltype(stateSignal)::element_type>(
bus,
"type='signal',"
"member='JobRemoved',"
"path='/org/freedesktop/systemd1',"
"interface='org.freedesktop.systemd1.Manager'",
bmcStateChangeSignal,
this))
{
subscribeToSystemdSignals();
discoverInitialState();
this->emit_object_added();
};
/** @brief Set value of BMCTransition **/
Transition requestedBMCTransition(Transition value) override;
/** @brief Set value of CurrentBMCState **/
BMCState currentBMCState(BMCState value) override;
private:
/**
* @brief discover the state of the bmc
**/
void discoverInitialState();
/**
* @brief subscribe to the systemd signals
**/
void subscribeToSystemdSignals();
/** @brief Execute the transition request
*
* @param[in] tranReq - Transition requested
*/
void executeTransition(Transition tranReq);
/** @brief Callback used to direct you into the class
*
* @param[in] msg - Data associated with subscribed signal
* @param[in] userData - Pointer to this object instance
* @param[out] retError - return error data if any
*
*/
static int bmcStateChangeSignal(sd_bus_message* msg,
void* userData,
sd_bus_error* retError);
/** @brief Callback function on bmc state change
*
* Check if the state is relevant to the BMC and if so, update
* corresponding BMC object's state
*
* @param[in] msg - Data associated with subscribed signal
* @param[out] retError - return error data if any
*
*/
int bmcStateChange(sd_bus_message* msg,
sd_bus_error* retError);
/** @brief Persistent sdbusplus DBus bus connection. **/
sdbusplus::bus::bus& bus;
/** @brief Used to subscribe to dbus system state changes **/
std::unique_ptr<sdbusplus::server::match::match> stateSignal;
};
} // namespace manager
} // namespace state
} // namespace phosphor
|
