/
subsystems.go
121 lines (97 loc) Β· 2.71 KB
/
subsystems.go
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package main
import (
"sync"
"github.com/safing/portbase/api/client"
"github.com/safing/portbase/formats/dsd"
"github.com/safing/portbase/log"
)
const (
subsystemsKeySpace = "runtime:subsystems/"
// Module Failure Status Values
// FailureNone = 0 // unused
// FailureHint = 1 // unused.
FailureWarning = 2
FailureError = 3
)
var (
subsystems = make(map[string]*Subsystem)
subsystemsLock sync.Mutex
)
// Subsystem describes a subset of modules that represent a part of a
// service or program to the user. Subsystems can be (de-)activated causing
// all related modules to be brought down or up.
type Subsystem struct { //nolint:maligned // not worth the effort
// ID is a unique identifier for the subsystem.
ID string
// Name holds a human readable name of the subsystem.
Name string
// Description may holds an optional description of
// the subsystem's purpose.
Description string
// Modules contains all modules that are related to the subsystem.
// Note that this slice also contains a reference to the subsystem
// module itself.
Modules []*ModuleStatus
// FailureStatus is the worst failure status that is currently
// set in one of the subsystem's dependencies.
FailureStatus uint8
}
// ModuleStatus describes the status of a module.
type ModuleStatus struct {
Name string
Enabled bool
Status uint8
FailureStatus uint8
FailureID string
FailureMsg string
}
// GetFailure returns the worst of all subsystem failures.
func GetFailure() (failureStatus uint8, failureMsg string) {
subsystemsLock.Lock()
defer subsystemsLock.Unlock()
for _, subsystem := range subsystems {
for _, module := range subsystem.Modules {
if failureStatus < module.FailureStatus {
failureStatus = module.FailureStatus
failureMsg = module.FailureMsg
}
}
}
return
}
func updateSubsystem(s *Subsystem) {
subsystemsLock.Lock()
defer subsystemsLock.Unlock()
subsystems[s.ID] = s
}
func clearSubsystems() {
subsystemsLock.Lock()
defer subsystemsLock.Unlock()
for key := range subsystems {
delete(subsystems, key)
}
}
func subsystemsClient() {
subsystemsOp := apiClient.Qsub("query "+subsystemsKeySpace, handleSubsystem)
subsystemsOp.EnableResuscitation()
}
func handleSubsystem(m *client.Message) {
switch m.Type {
case client.MsgError:
case client.MsgDone:
case client.MsgSuccess:
case client.MsgOk, client.MsgUpdate, client.MsgNew:
newSubsystem := &Subsystem{}
_, err := dsd.Load(m.RawValue, newSubsystem)
if err != nil {
log.Warningf("subsystems: failed to parse new subsystem: %s", err)
return
}
updateSubsystem(newSubsystem)
triggerTrayUpdate()
case client.MsgDelete:
case client.MsgWarning:
case client.MsgOffline:
clearSubsystems()
}
}