Files
gluetun/internal/portforward/state/settings.go
Quentin McGaw 2998cf5e48 Maint: port forwarding refactoring (#543)
- portforward package
- portforward run loop
- Less functional arguments and cycles
2021-07-28 08:35:44 -07:00

56 lines
1.3 KiB
Go

package state
import (
"context"
"os"
"reflect"
"github.com/qdm12/gluetun/internal/configuration"
"github.com/qdm12/gluetun/internal/constants"
)
type SettingsGetSetter interface {
GetSettings() (settings configuration.PortForwarding)
SetSettings(ctx context.Context,
settings configuration.PortForwarding) (outcome string)
}
func (s *State) GetSettings() (settings configuration.PortForwarding) {
s.settingsMu.RLock()
defer s.settingsMu.RUnlock()
return s.settings
}
func (s *State) SetSettings(ctx context.Context, settings configuration.PortForwarding) (
outcome string) {
s.settingsMu.Lock()
settingsUnchanged := reflect.DeepEqual(s.settings, settings)
if settingsUnchanged {
s.settingsMu.Unlock()
return "settings left unchanged"
}
if s.settings.Filepath != settings.Filepath {
_ = os.Rename(s.settings.Filepath, settings.Filepath)
}
newEnabled := settings.Enabled
previousEnabled := s.settings.Enabled
s.settings = settings
s.settingsMu.Unlock()
switch {
case !newEnabled && !previousEnabled:
case newEnabled && previousEnabled:
// no need to restart for now since we os.Rename the file here.
case newEnabled && !previousEnabled:
_, _ = s.statusApplier.ApplyStatus(ctx, constants.Running)
case !newEnabled && previousEnabled:
_, _ = s.statusApplier.ApplyStatus(ctx, constants.Stopped)
}
return "settings updated"
}