41 lines
1.0 KiB
Go
41 lines
1.0 KiB
Go
package systemd
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import (
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"fmt"
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"log"
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"sync"
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"github.com/coreos/go-systemd/v22/daemon"
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"github.com/rclone/rclone/lib/atexit"
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)
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// Notify systemd that the service is starting. This returns a
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// function which should be called to notify that the service is
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// stopping. This function will be called on exit if the service exits
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// on a signal.
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func Notify() func() {
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if _, err := daemon.SdNotify(false, daemon.SdNotifyReady); err != nil {
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log.Printf("failed to notify ready to systemd: %v", err)
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}
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var finaliseOnce sync.Once
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finalise := func() {
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finaliseOnce.Do(func() {
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if _, err := daemon.SdNotify(false, daemon.SdNotifyStopping); err != nil {
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log.Printf("failed to notify stopping to systemd: %v", err)
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}
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})
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}
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finaliseHandle := atexit.Register(finalise)
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return func() {
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atexit.Unregister(finaliseHandle)
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finalise()
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}
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}
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// UpdateStatus updates the systemd status
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func UpdateStatus(status string) error {
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systemdStatus := fmt.Sprintf("STATUS=%s", status)
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_, err := daemon.SdNotify(false, systemdStatus)
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return err
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}
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