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Viewing changes to src/github.com/coreos/go-systemd/daemon/sdnotify.go

  • Committer: Nicholas Skaggs
  • Date: 2016-12-02 17:28:37 UTC
  • Revision ID: nicholas.skaggs@canonical.com-20161202172837-jkrbdlyjcxtrii2n
Initial commit of 1.25.6

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src/github.com/coreos/go-systemd/daemon/sdnotify.go
 
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// Code forked from Docker project
 
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package daemon
 
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import (
 
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        "errors"
 
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        "net"
 
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        "os"
 
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)
 
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var SdNotifyNoSocket = errors.New("No socket")
 
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// SdNotify sends a message to the init daemon. It is common to ignore the error.
 
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func SdNotify(state string) error {
 
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        socketAddr := &net.UnixAddr{
 
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                Name: os.Getenv("NOTIFY_SOCKET"),
 
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                Net:  "unixgram",
 
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        }
 
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        if socketAddr.Name == "" {
 
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                return SdNotifyNoSocket
 
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        }
 
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        conn, err := net.DialUnix(socketAddr.Net, nil, socketAddr)
 
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        if err != nil {
 
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                return err
 
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        }
 
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        defer conn.Close()
 
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        _, err = conn.Write([]byte(state))
 
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        return err
 
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}