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87 lines
1.9 KiB
87 lines
1.9 KiB
// Copyright 2015 CoreOS, Inc.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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// Activation example used by the activation unit tests.
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package main
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import (
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"fmt"
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"net"
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"os"
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"github.com/coreos/go-systemd/activation"
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)
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func fixListenPid() {
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if os.Getenv("FIX_LISTEN_PID") != "" {
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// HACK: real systemd would set LISTEN_PID before exec'ing but
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// this is too difficult in golang for the purpose of a test.
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// Do not do this in real code.
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os.Setenv("LISTEN_PID", fmt.Sprintf("%d", os.Getpid()))
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}
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}
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func main() {
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fixListenPid()
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pc, _ := activation.PacketConns(false)
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if len(pc) == 0 {
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panic("No packetConns")
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}
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if os.Getenv("LISTEN_PID") == "" || os.Getenv("LISTEN_FDS") == "" {
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panic("Should not unset envs")
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}
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pc, err := activation.PacketConns(true)
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if err != nil {
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panic(err)
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}
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if os.Getenv("LISTEN_PID") != "" || os.Getenv("LISTEN_FDS") != "" {
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panic("Can not unset envs")
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}
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udp1, ok := pc[0].(*net.UDPConn)
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if !ok {
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panic("packetConn 1 not UDP")
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}
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udp2, ok := pc[1].(*net.UDPConn)
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if !ok {
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panic("packetConn 2 not UDP")
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}
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_, addr1, err := udp1.ReadFromUDP(nil)
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if err != nil {
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panic(err)
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}
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_, addr2, err := udp2.ReadFromUDP(nil)
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if err != nil {
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panic(err)
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}
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// Write out the expected strings to the two pipes
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_, err = udp1.WriteToUDP([]byte("Hello world"), addr1)
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if err != nil {
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panic(err)
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}
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_, err = udp2.WriteToUDP([]byte("Goodbye world"), addr2)
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if err != nil {
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panic(err)
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}
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return
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}
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