func (ts *TestSystem) runtest(timeoutms int) {
lspnet.SetWriteDropPercent(ts.DropPercent)
if ts.Description != "" {
fmt.Printf("Testing: %s\n", ts.Description)
}
go ts.runserver()
for i := 0; i < ts.NClients; i++ {
go ts.runclient(i)
}
go ts.runtimeout(timeoutms)
for i := 0; i < ts.NClients; i++ {
v := <-ts.CChan
if v < 0 {
ts.RunFlag = false
ts.Tester.Logf("Test timed out after %f secs\n",
float64(timeoutms)/1000.0)
ts.Tester.FailNow()
}
}
ts.RunFlag = false
lsplog.Vlogf(0, "Passed: %d clients, %d messages/client, %.2f maxsleep, %.2f drop rate\n",
ts.NClients, ts.NMessages,
float64(ts.MaxSleepMilliseconds)/1000.0,
float64(ts.DropPercent)/100.0)
lsplog.SetVerbose(DefaultVerbosity)
lspnet.SetWriteDropPercent(0)
}
func main() {
var ihelp *bool = flag.Bool("h", false, "Print help information")
var iport *int = flag.Int("p", 6666, "Port number")
var iverb *int = flag.Int("v", 4, "Verbosity (0-6)")
var idrop *int = flag.Int("r", 0, "Network packet drop percentage")
var elim *int = flag.Int("k", 5, "Epoch limit")
var ems *int = flag.Int("d", 2000, "Epoch duration (millisecconds)")
flag.Parse()
if *ihelp {
flag.Usage()
os.Exit(0)
}
var port int = *iport
if flag.NArg() > 0 {
nread, _ := fmt.Sscanf(flag.Arg(0), "%d", &port)
if nread != 1 {
flag.Usage()
os.Exit(0)
}
}
params := &lsp.LspParams{*elim, *ems}
lsplog.SetVerbose(*iverb)
lspnet.SetWriteDropPercent(*idrop)
fmt.Printf("Establishing server on port %d\n", port)
srv, err := lsp.NewLspServer(port, params)
if err != nil {
fmt.Printf("... failed. Error message %s\n", err.Error())
} else {
runserver(srv)
}
}
// Turn network off and on
func (ts *SynchTestSystem) RunNetwork() {
// Network initially on
lspnet.SetWriteDropPercent(0)
for ts.RunFlag {
lsplog.Vlogf(4, "Network running. Waiting for master\n")
<-ts.M2NChan
lsplog.Vlogf(4, "Turning off network\n")
lspnet.SetWriteDropPercent(100)
ts.N2MChan <- true
lsplog.Vlogf(4, "Network off. Waiting for master\n")
<-ts.M2NChan
lsplog.Vlogf(4, "Turning network on and delaying\n")
lspnet.SetWriteDropPercent(0)
ts.N2MChan <- true
ts.synchdelay(2.0)
}
lsplog.Vlogf(4, "Network handler exiting\n")
}
func main() {
var ihelp *bool = flag.Bool("h", false, "Show help information")
var iport *int = flag.Int("p", 6666, "Port number")
var ihost *string = flag.String("H", "localhost", "Host address")
var iverb *int = flag.Int("v", 4, "Verbosity (0-6)")
var irdrop *int = flag.Int("r", 0, "Network read packet drop percentage")
var iwdrop *int = flag.Int("w", 0, "Network write packet drop percentage")
var elim *int = flag.Int("k", 5, "Epoch limit")
var ems *int = flag.Int("d", 2000, "Epoch duration (millisecconds)")
flag.Parse()
if *ihelp {
flag.Usage()
os.Exit(0)
}
if flag.NArg() > 0 {
// Look for host:port on command line
ok := true
fields := strings.Split(flag.Arg(0), ":")
ok = ok && len(fields) == 2
if ok {
*ihost = fields[0]
n, err := fmt.Sscanf(fields[1], "%d", iport)
ok = ok && n == 1 && err == nil
}
if !ok {
flag.Usage()
os.Exit(0)
}
}
params := &lsp.LspParams{*elim, *ems}
lsplog.SetVerbose(*iverb)
lspnet.SetReadDropPercent(*irdrop)
lspnet.SetWriteDropPercent(*iwdrop)
hostport := fmt.Sprintf("%s:%v", *ihost, *iport)
fmt.Printf("Connecting to server at %s\n", hostport)
cli, err := lsp.NewLspClient(hostport, params)
if err != nil {
fmt.Printf("... failed. Error message %s\n", err.Error())
}
if lsplog.CheckReport(1, err) {
return
}
runclient(cli)
}
// Test components
func NewSynchTestSystem(t *testing.T, nclients int, nmessages int, mode int, maxepochs int, params *LspParams) {
fmt.Printf("Testing: Mode %s, %d clients\n", SynchModeName[mode], nclients)
ts := new(SynchTestSystem)
ts.Mode = mode
ts.Params = params
ts.C2MChan = make(chan bool)
ts.S2MChan = make(chan bool)
ts.N2MChan = make(chan bool)
ts.TChan = make(chan int)
ts.M2CChan = make(chan bool)
ts.M2SChan = make(chan bool)
ts.M2NChan = make(chan bool)
ts.Nclients = nclients
ts.Nmessages = nmessages
ts.Clients = make([]*LspClient, nclients)
ts.ClientMap = make(map[uint16]int, nclients)
ts.Data = make([][]int, nclients)
ts.Rgen = *rand.New(rand.NewSource(time.Now().Unix()))
for i := 0; i < nclients; i++ {
ts.Data[i] = genData(nmessages, ts.Rgen)
}
ts.Nclients = nclients
ts.Port = synchrandport(ts.Rgen)
ts.RunFlag = true
ts.Tester = t
go ts.RunNetwork()
go ts.RunServer()
// Set up clients
for i := 0; i < nclients; i++ {
go ts.RunClient(i)
}
go ts.RunTimeout(float64(maxepochs))
ts.Master()
ts.RunFlag = false
lsplog.SetVerbose(SynchDefaultVerbosity)
lspnet.SetWriteDropPercent(0)
}
