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
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
|
#pragma once
#include <cstring>
#include <vector>
#include <experimental/filesystem>
#include <functional>
#include <sdbusplus/bus.hpp>
#include <powercap.hpp>
#include "occ_pass_through.hpp"
#include "occ_status.hpp"
#include "occ_finder.hpp"
#include "config.h"
namespace sdbusRule = sdbusplus::bus::match::rules;
namespace open_power
{
namespace occ
{
/** @class Manager
* @brief Builds and manages OCC objects
*/
struct Manager
{
public:
Manager() = delete;
Manager(const Manager&) = delete;
Manager& operator=(const Manager&) = delete;
Manager(Manager&&) = default;
Manager& operator=(Manager&&) = default;
~Manager() = default;
/** @brief Adds OCC pass-through and status objects on the bus
* when corresponding CPU inventory is created.
*
* @param[in] bus - handle to the bus
* @param[in] event - Unique ptr reference to sd_event
*/
Manager(sdbusplus::bus::bus& bus,
EventPtr& event) :
bus(bus),
event(event)
{
// Check if CPU inventory exists already.
auto occs = open_power::occ::finder::get();
if (occs.empty())
{
// Need to watch for CPU inventory creation.
for (auto id = 0; id < MAX_CPUS; ++id)
{
auto path = std::string(CPU_PATH) + std::to_string(id);
cpuMatches.emplace_back(
bus,
sdbusRule::interfacesAdded() +
sdbusRule::argNpath(0, path),
std::bind(std::mem_fn(&Manager::cpuCreated),
this, std::placeholders::_1));
}
}
else
{
for (const auto& occ : occs)
{
// CPU inventory exists already, OCC objects can be created.
createObjects(occ);
}
}
}
/** @brief Callback that responds to cpu creation in the inventory -
* by creating the needed objects.
*
* @param[in] msg - bus message
*
* @returns 0 to indicate success
*/
int cpuCreated(sdbusplus::message::message& msg)
{
namespace fs = std::experimental::filesystem;
sdbusplus::message::object_path o;
msg.read(o);
fs::path cpuPath(std::string(std::move(o)));
auto name = cpuPath.filename().string();
auto index = name.find(CPU_NAME);
name.replace(index, std::strlen(CPU_NAME), OCC_NAME);
createObjects(name);
return 0;
}
private:
/** @brief Create child OCC objects.
*
* @param[in] occ - the occ name, such as occ0.
*/
void createObjects(const std::string& occ)
{
auto path = fs::path(OCC_CONTROL_ROOT) / occ;
passThroughObjects.emplace_back(
std::make_unique<PassThrough>(
bus,
path.c_str()));
statusObjects.emplace_back(
std::make_unique<Status>(
bus,
event,
path.c_str()));
// Create the power cap monitor object for master occ (0)
if (!pcap)
{
pcap = std::make_unique<open_power::occ::powercap::PowerCap>(
bus,
*statusObjects.front());
}
}
/** @brief reference to the bus */
sdbusplus::bus::bus& bus;
/** @brief reference to sd_event wrapped in unique_ptr */
EventPtr& event;
/** @brief OCC pass-through objects */
std::vector<std::unique_ptr<PassThrough>> passThroughObjects;
/** @brief OCC Status objects */
std::vector<std::unique_ptr<Status>> statusObjects;
/** @brief Power cap monitor and occ notification object */
std::unique_ptr<open_power::occ::powercap::PowerCap> pcap;
/** @brief sbdbusplus match objects */
std::vector<sdbusplus::bus::match_t> cpuMatches;
};
} // namespace occ
} // namespace open_power
|
