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package devices
import "log"
const (
Temperatures = "Temperatures" // Device domain for temperature sensors
)
var Domains []string = []string{Temperatures}
var _shutdownFuncs []func() error
var _devs map[string][]string
var _defaults map[string][]string
// RegisterShutdown stores a function to be called by gotop on exit, allowing
// extensions to properly release resources. Extensions should register a
// shutdown function IFF the extension is using resources that need to be
// released. The returned error will be logged, but no other action will be
// taken.
func RegisterShutdown(f func() error) {
_shutdownFuncs = append(_shutdownFuncs, f)
}
// Shutdown will be called by the `main()` function if gotop is exited
// cleanly. It will call all of the registered shutdown functions of devices,
// logging all errors but otherwise not responding to them.
func Shutdown() {
for _, f := range _shutdownFuncs {
err := f()
if err != nil {
log.Print(err)
}
}
}
func RegisterDeviceList(typ string, all func() []string, def func() []string) {
if _devs == nil {
_devs = make(map[string][]string)
}
if _defaults == nil {
_defaults = make(map[string][]string)
}
if _, ok := _devs[typ]; !ok {
_devs[typ] = []string{}
}
_devs[typ] = append(_devs[typ], all()...)
if _, ok := _defaults[typ]; !ok {
_defaults[typ] = []string{}
}
_defaults[typ] = append(_defaults[typ], def()...)
}
// Return a list of devices registered under domain, where `domain` is one of the
// defined constants in `devices`, e.g., devices.Temperatures. The
// `enabledOnly` flag determines whether all devices are returned (false), or
// only the ones that have been enabled for the domain.
func Devices(domain string, all bool) []string {
if all {
return _devs[domain]
} else {
return _defaults[domain]
}
}
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