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Reliably wait for all processes to exit

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This commit is contained in:
Quentin McGaw
2020-04-19 20:10:48 +00:00
parent e805d42197
commit 4cb32ef9dc
3 changed files with 14 additions and 23 deletions
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27
cmd/main.go
View File

@@ -133,6 +133,7 @@ func main() {
e.FatalOnError(err)
}()
waiter := command.NewWaiter()
if allSettings.DNS.Enabled {
initialDNSToUse := constants.DNSProviderMapping()[allSettings.DNS.Providers[0]]
dnsConf.UseDNSInternally(initialDNSToUse.IPs[0])
@@ -144,9 +145,7 @@ func main() {
e.FatalOnError(err)
stream, waitFn, err := dnsConf.Start(ctx, allSettings.DNS.VerbosityDetailsLevel)
e.FatalOnError(err)
go func() {
e.FatalOnError(waitFn())
}()
waiter.Add(waitFn)
go streamMerger.Merge(stream, command.MergeName("unbound"))
dnsConf.UseDNSInternally(net.IP{127, 0, 0, 1}) // use Unbound
err = dnsConf.UseDNSSystemWide(net.IP{127, 0, 0, 1}) // use Unbound
@@ -235,11 +234,7 @@ func main() {
e.FatalOnError(err)
stream, waitFn, err := tinyProxyConf.Start(ctx)
e.FatalOnError(err)
go func() {
if err := waitFn(); err != nil {
logger.Error(err)
}
}()
waiter.Add(waitFn)
go streamMerger.Merge(stream, command.MergeName("tinyproxy"))
}
@@ -255,29 +250,29 @@ func main() {
e.FatalOnError(err)
stdout, stderr, waitFn, err := shadowsocksConf.Start(ctx, "0.0.0.0", allSettings.ShadowSocks.Port, allSettings.ShadowSocks.Password, allSettings.ShadowSocks.Log)
e.FatalOnError(err)
go func() {
if err := waitFn(); err != nil {
logger.Error(err)
}
}()
waiter.Add(waitFn)
go streamMerger.Merge(stdout, command.MergeName("shadowsocks"))
go streamMerger.Merge(stderr, command.MergeName("shadowsocks error"))
}
stream, waitFn, err := ovpnConf.Start(ctx)
e.FatalOnError(err)
waiter.Add(waitFn)
go streamMerger.Merge(stream, command.MergeName("openvpn"))
go signals.WaitForExit(func(signal string) int {
signals.WaitForExit(func(signal string) int {
logger.Warn("Caught OS signal %s, shutting down", signal)
if allSettings.VPNSP == "pia" && allSettings.PIA.PortForwarding.Enabled {
if err := piaConf.ClearPortForward(allSettings.PIA.PortForwarding.Filepath, allSettings.System.UID, allSettings.System.GID); err != nil {
logger.Error(err)
}
}
time.Sleep(100 * time.Millisecond) // wait for other processes to exit
logger.Info("Waiting for processes to exit...")
errors := waiter.WaitForAll()
for _, err := range errors {
logger.Error(err)
}
return 0
})
e.FatalOnError(waitFn())
}
func onConnected(

2
go.mod
View File

@@ -5,7 +5,7 @@ go 1.14
require (
github.com/golang/mock v1.4.3
github.com/kyokomi/emoji v2.2.2+incompatible
github.com/qdm12/golibs v0.0.0-20200419174016-f1c612728dfa
github.com/qdm12/golibs v0.0.0-20200419200147-04dea671b563
github.com/stretchr/testify v1.5.1
golang.org/x/sys v0.0.0-20200413165638-669c56c373c4
)

8
go.sum
View File

@@ -50,8 +50,6 @@ github.com/kr/pretty v0.1.0/go.mod h1:dAy3ld7l9f0ibDNOQOHHMYYIIbhfbHSm3C4ZsoJORN
github.com/kr/pty v1.1.1/go.mod h1:pFQYn66WHrOpPYNljwOMqo10TkYh1fy3cYio2l3bCsQ=
github.com/kr/text v0.1.0 h1:45sCR5RtlFHMR4UwH9sdQ5TC8v0qDQCHnXt+kaKSTVE=
github.com/kr/text v0.1.0/go.mod h1:4Jbv+DJW3UT/LiOwJeYQe1efqtUx/iVham/4vfdArNI=
github.com/kyokomi/emoji v2.2.1+incompatible h1:uP/6J5y5U0XxPh6fv8YximpVD1uMrshXG78I1+uF5SA=
github.com/kyokomi/emoji v2.2.1+incompatible/go.mod h1:mZ6aGCD7yk8j6QY6KICwnZ2pxoszVseX1DNoGtU2tBA=
github.com/kyokomi/emoji v2.2.2+incompatible h1:gaQFbK2+uSxOR4iGZprJAbpmtqTrHhSdgOyIMD6Oidc=
github.com/kyokomi/emoji v2.2.2+incompatible/go.mod h1:mZ6aGCD7yk8j6QY6KICwnZ2pxoszVseX1DNoGtU2tBA=
github.com/mailru/easyjson v0.0.0-20180823135443-60711f1a8329 h1:2gxZ0XQIU/5z3Z3bUBu+FXuk2pFbkN6tcwi/pjyaDic=
@@ -72,8 +70,8 @@ github.com/pkg/errors v0.8.1 h1:iURUrRGxPUNPdy5/HRSm+Yj6okJ6UtLINN0Q9M4+h3I=
github.com/pkg/errors v0.8.1/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINEl0=
github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
github.com/qdm12/golibs v0.0.0-20200419174016-f1c612728dfa h1:7kFbnjnVF87U1gF3LdTYi3b63oIaUWJXv8pZvRdJoNA=
github.com/qdm12/golibs v0.0.0-20200419174016-f1c612728dfa/go.mod h1:pikkTN7g7zRuuAnERwqW1yAFq6pYmxrxpjiwGvb0Ysc=
github.com/qdm12/golibs v0.0.0-20200419200147-04dea671b563 h1:r6V5HuD76hv6IBrRg83YwoEe2txFMjSLZbuOfrbsY7k=
github.com/qdm12/golibs v0.0.0-20200419200147-04dea671b563/go.mod h1:pikkTN7g7zRuuAnERwqW1yAFq6pYmxrxpjiwGvb0Ysc=
github.com/rogpeppe/go-internal v1.3.0/go.mod h1:M8bDsm7K2OlrFYOpmOWEs/qY81heoFRclV5y23lUDJ4=
github.com/stretchr/objx v0.1.0 h1:4G4v2dO3VZwixGIRoQ5Lfboy6nUhCyYzaqnIAPPhYs4=
github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
@@ -108,8 +106,6 @@ golang.org/x/sys v0.0.0-20190222072716-a9d3bda3a223/go.mod h1:STP8DvDyc/dI5b8T5h
golang.org/x/sys v0.0.0-20190412213103-97732733099d h1:+R4KGOnez64A81RvjARKc4UT5/tI9ujCIVX+P5KiHuI=
golang.org/x/sys v0.0.0-20190412213103-97732733099d/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
golang.org/x/sys v0.0.0-20191026070338-33540a1f6037/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
golang.org/x/sys v0.0.0-20200409092240-59c9f1ba88fa h1:mQTN3ECqfsViCNBgq+A40vdwhkGykrrQlYe3mPj6BoU=
golang.org/x/sys v0.0.0-20200409092240-59c9f1ba88fa/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
golang.org/x/sys v0.0.0-20200413165638-669c56c373c4 h1:opSr2sbRXk5X5/givKrrKj9HXxFpW2sdCiP8MJSKLQY=
golang.org/x/sys v0.0.0-20200413165638-669c56c373c4/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
golang.org/x/text v0.0.0-20170915032832-14c0d48ead0c/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=