-
Notifications
You must be signed in to change notification settings - Fork 1
/
global.go
212 lines (187 loc) · 5.23 KB
/
global.go
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
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
package lib
import (
"os"
"path/filepath"
"sync"
"text/template"
"time"
"github.com/creativeprojects/clog"
"github.com/creativeprojects/hardware-events/cfg"
"github.com/creativeprojects/hardware-events/lib/simulation"
)
type Global struct {
config cfg.Config
Disks map[string]*Disk
DiskPools map[string]*DiskPool
Templates map[string]*Template
Tasks map[string]*Task
Schedules map[string]*Schedule
DiskStatuses map[string]DiskStatuser
TemperatureSensors map[string]SensorGetter
FanControl *Control
templ *template.Template
diskstats *Diskstats
diskstatsMutex sync.Mutex
}
func NewGlobal(config cfg.Config) (*Global, error) {
var err error
global := &Global{
config: config,
DiskPools: make(map[string]*DiskPool, len(config.DiskPools)),
Disks: make(map[string]*Disk, len(config.Disks)),
Templates: make(map[string]*Template, len(config.Templates)),
Tasks: make(map[string]*Task, len(config.Tasks)),
TemperatureSensors: make(map[string]SensorGetter, len(config.Sensors)),
Schedules: make(map[string]*Schedule, len(config.Schedule)),
DiskStatuses: make(map[string]DiskStatuser, len(config.DiskPowerStatus)),
diskstatsMutex: sync.Mutex{},
}
// Disk pools
for name, value := range config.DiskPools {
global.DiskPools[name] = NewDiskPool(global, name, value)
}
// Disk Power Status
for name, value := range config.DiskPowerStatus {
var diskStatus DiskStatuser
if config.Simulation {
diskStatus, err = simulation.NewDiskStatus(name, value)
} else {
diskStatus, err = NewDiskStatus(name, value)
}
if err != nil {
return global, err
}
global.DiskStatuses[name] = diskStatus
}
// Disks
for name, value := range config.Disks {
disk, err := NewDisk(global, name, value, global.DiskStatuses)
if err != nil {
// display an error but keep going
clog.Errorf("ignoring configuration for disk %q: %s", name, err)
continue
}
global.Disks[name] = disk
}
// Templates
templates := make([]string, 0, len(config.Templates))
for name, value := range config.Templates {
global.Templates[name] = NewTemplate(global, name, value)
source := value.Source
if !filepath.IsAbs(source) {
exec, _ := os.Executable()
source = filepath.Join(filepath.Dir(exec), source)
}
templates = append(templates, source)
}
// Now load the templates
global.templ, err = template.ParseFiles(templates...)
if err != nil {
return global, err
}
// Temperature sensors
for sensorName, sensorCfg := range config.Sensors {
var sensor SensorGetter
if config.Simulation {
sensor, err = simulation.NewSensor(sensorName, sensorCfg)
} else {
sensor, err = NewSensor(sensorName, sensorCfg, os.DirFS("/"))
}
if err != nil {
return global, err
}
global.TemperatureSensors[sensorName] = sensor
}
// Tasks
for name, value := range config.Tasks {
task, err := NewTask(global, name, value, config.Simulation)
if err != nil {
return global, err
}
global.Tasks[name] = task
}
// Schedules
for name, value := range config.Schedule {
global.Schedules[name] = NewSchedule(global, value)
}
// Fan controller
global.FanControl, err = NewControl(global.GetSensorReader, config.FanControl, config.Simulation)
if err != nil {
return global, err
}
// Disk standby mode
for _, disk := range global.Disks {
disk.StartStandbyWatch()
}
return global, nil
}
func (g *Global) GetDiskstats() (*Diskstats, error) {
g.diskstatsMutex.Lock()
defer g.diskstatsMutex.Unlock()
if g.diskstats == nil || g.diskstats.timestamp.Add(1*time.Minute).Before(time.Now()) {
return g.readDiskstats()
}
return g.diskstats, nil
}
func (g *Global) readDiskstats() (*Diskstats, error) {
clog.Debug("reading /proc/diskstats file")
file, err := os.Open("/proc/diskstats")
if err != nil {
return nil, err
}
defer file.Close()
g.diskstats, err = NewDiskstats(file)
if err != nil {
return nil, err
}
return g.diskstats, nil
}
func (g *Global) GetStartupTasks() []*Task {
tasks := make([]*Task, 0, len(g.Schedules))
for _, schedule := range g.Schedules {
if schedule.OnStartup() {
tasks = append(tasks, schedule.Task)
}
}
return tasks
}
func (g *Global) GetTimerTasks() []Timer {
timers := make([]Timer, 0, len(g.Schedules))
for _, schedule := range g.Schedules {
duration := schedule.OnTimer()
if duration > 0 {
timers = append(timers, Timer{schedule.Task, duration})
}
}
return timers
}
func (g *Global) StartTimers() {
for _, timer := range g.GetTimerTasks() {
clog.Debugf("setting up timer task %s every %v", timer.task.Name, timer.every)
go func(timer Timer) {
for {
time.Sleep(timer.every)
clog.Debugf("running timer task %s", timer.task.Name)
err := timer.task.Execute()
if err != nil {
clog.Error(err)
}
}
}(timer)
}
}
func (g *Global) GetSensorReader(sensorName string) func() (int, error) {
// try "standard" sensor first
if sensor, ok := g.TemperatureSensors[sensorName]; ok {
return func() (int, error) {
return sensor.Get(nil)
}
}
// then try disk sensor
if sensor, ok := g.Disks[sensorName]; ok {
return func() (int, error) {
return sensor.Temperature(), nil
}
}
return nil
}