mirror of
https://github.com/gravitl/netmaker.git
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33 lines
725 B
Go
33 lines
725 B
Go
package ncutils
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import (
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"fmt"
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"os"
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"strconv"
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)
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// PIDFILE - path/name of pid file
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const PIDFILE = "/var/run/netclient.pid"
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// SavePID - saves the pid of running program to disk
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func SavePID() error {
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pid := os.Getpid()
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if err := os.WriteFile(PIDFILE, []byte(fmt.Sprintf("%d", pid)), 0644); err != nil {
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return fmt.Errorf("could not write to pid file %w", err)
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}
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return nil
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}
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// ReadPID - reads a previously saved pid from disk
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func ReadPID() (int, error) {
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bytes, err := os.ReadFile(PIDFILE)
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if err != nil {
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return 0, fmt.Errorf("could not read pid file %w", err)
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}
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pid, err := strconv.Atoi(string(bytes))
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if err != nil {
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return 0, fmt.Errorf("pid file contents invalid %w", err)
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}
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return pid, nil
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}
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