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package main
import (
"fmt"
"os"
"time"
"github.com/edwarnicke/exechelper"
)
func (s *VethsSuite) TestLDPreloadIperfVpp() {
var clnVclConf, srvVclConf Stanza
srvInstance := "vpp-ldp-srv"
clnInstance := "vpp-ldp-cln"
srvPath := "/tmp/" + srvInstance
clnPath := "/tmp/" + clnInstance
srvVcl := srvPath + "/vcl_srv.conf"
clnVcl := clnPath + "/vcl_cln.conf"
exechelper.Run("mkdir " + srvPath)
exechelper.Run("mkdir " + clnPath)
ldpreload := os.Getenv("HST_LDPRELOAD")
s.assertNotEqual("", ldpreload)
ldpreload = "LD_PRELOAD=" + ldpreload
stopServerCh := make(chan struct{}, 1)
srvCh := make(chan error, 1)
clnCh := make(chan error)
fmt.Println("starting VPPs")
s.assertNil(dockerRun(srvInstance, fmt.Sprintf("-v /tmp/%s:/tmp", srvInstance)), "failed to start docker (srv)")
defer func() { exechelper.Run("docker stop " + srvInstance) }()
s.assertNil(dockerRun(clnInstance, fmt.Sprintf("-v /tmp/%s:/tmp", clnInstance)), "failed to start docker (cln)")
defer func() { exechelper.Run("docker stop " + clnInstance) }()
_, err := hstExec("Configure2Veths srv", srvInstance)
s.assertNil(err)
_, err = hstExec("Configure2Veths cln", clnInstance)
s.assertNil(err)
err = clnVclConf.
NewStanza("vcl").
Append("rx-fifo-size 4000000").
Append("tx-fifo-size 4000000").
Append("app-scope-local").
Append("app-scope-global").
Append("use-mq-eventfd").
Append(fmt.Sprintf("app-socket-api /tmp/%s/Configure2Veths/var/run/app_ns_sockets/2", clnInstance)).Close().
SaveToFile(clnVcl)
s.assertNil(err)
err = srvVclConf.
NewStanza("vcl").
Append("rx-fifo-size 4000000").
Append("tx-fifo-size 4000000").
Append("app-scope-local").
Append("app-scope-global").
Append("use-mq-eventfd").
Append(fmt.Sprintf("app-socket-api /tmp/%s/Configure2Veths/var/run/app_ns_sockets/1", srvInstance)).Close().
SaveToFile(srvVcl)
s.assertNil(err)
fmt.Printf("attaching server to vpp")
// FIXME
time.Sleep(5 * time.Second)
srvEnv := append(os.Environ(), ldpreload, "VCL_CONFIG="+srvVcl)
go StartServerApp(srvCh, stopServerCh, srvEnv)
err = <-srvCh
s.assertNil(err)
fmt.Println("attaching client to vpp")
clnEnv := append(os.Environ(), ldpreload, "VCL_CONFIG="+clnVcl)
go StartClientApp(clnEnv, clnCh)
// wait for client's result
err = <-clnCh
s.assertNil(err)
// stop server
stopServerCh <- struct{}{}
}
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