func (round *RoundStamper) SignatureBroadcast(in *sign.SigningMessage, out []*sign.SigningMessage) error {
round.RoundCosi.SignatureBroadcast(in, out)
round.Proof = round.RoundCosi.Cosi.Proof
round.MTRoot = round.RoundCosi.Cosi.MTRoot
round.CombProofs = make([]proof.Proof, len(round.StampQueue))
// Send back signature to clients
for i, msg := range round.StampQueue {
// proof to get from s.Root to big root
combProof := make(proof.Proof, len(round.Proof))
copy(combProof, round.Proof)
// add my proof to get from a leaf message to my root s.Root
combProof = append(combProof, round.StampProofs[i]...)
// proof that I can get from a leaf message to the big root
if proof.CheckProof(round.Suite.Hash, round.MTRoot,
round.StampLeaves[i], combProof) {
dbg.Lvl2("Proof is OK for msg", msg)
} else {
dbg.Lvl2("Inclusion-proof failed")
}
round.CombProofs[i] = combProof
}
return nil
}
// Runs two conodes and tests if the value returned is OK
func TestStamp(t *testing.T) {
dbg.TestOutput(testing.Verbose(), 4)
peer1, peer2 := createPeers()
go peer1.LoopRounds(conode.RoundStamperListenerType, 4)
go peer2.LoopRounds(conode.RoundStamperListenerType, 4)
time.Sleep(2 * time.Second)
s, err := conode.NewStamp("testdata/config.toml")
if err != nil {
t.Fatal("Couldn't open config-file:", err)
}
for _, port := range []int{7000, 7010} {
stamper := "localhost:" + strconv.Itoa(port)
dbg.Lvl2("Contacting stamper", stamper)
tsm, err := s.GetStamp([]byte("test"), stamper)
dbg.Lvl3("Evaluating results of", stamper)
if err != nil {
t.Fatal("Couldn't get stamp from server:", err)
}
if !tsm.Srep.AggPublic.Equal(s.X0) {
t.Fatal("Not correct aggregate public key")
}
}
dbg.Lvl2("Closing peer1")
peer1.Close()
dbg.Lvl2("Closing peer2")
peer2.Close()
dbg.Lvl3("Done with test")
}
// Verifies that the 'message' is included in the signature and that it
// is correct.
// Message is your own hash, and reply contains the inclusion proof + signature
// on the aggregated message
func VerifySignature(suite abstract.Suite, reply *StampSignature, public abstract.Point, message []byte) bool {
// Check if aggregate public key is correct
if !public.Equal(reply.AggPublic) {
dbg.Lvl1("Aggregate-public-key check: FAILED (maybe you have an outdated config file of the tree)")
return false
}
// First check if the challenge is ok
if err := VerifyChallenge(suite, reply); err != nil {
dbg.Lvl1("Challenge-check: FAILED (", err, ")")
return false
}
dbg.Lvl2("Challenge-check: OK")
// Incorporate the timestamp in the message since the verification process
// is done by reconstructing the challenge
var b bytes.Buffer
if err := binary.Write(&b, binary.LittleEndian, reply.Timestamp); err != nil {
dbg.Lvl1("Error marshaling the timestamp for signature verification")
return false
}
msg := append(b.Bytes(), []byte(reply.MerkleRoot)...)
if err := VerifySchnorr(suite, msg, public, reply.Challenge, reply.Response); err != nil {
dbg.Lvl1("Signature-check: FAILED (", err, ")")
return false
}
dbg.Lvl2("Signature-check: OK")
// finally check the proof
if !proof.CheckProof(suite.Hash, reply.MerkleRoot, hashid.HashId(message), reply.Prf) {
dbg.Lvl2("Inclusion-check: FAILED")
return false
}
dbg.Lvl2("Inclusion-check: OK")
return true
}
// Monitor will start listening for incoming connections on this address
// It needs the stats struct pointer to update when measures come
// Return an error if something went wrong during the connection setup
func (m *Monitor) Listen() error {
ln, err := net.Listen("tcp", Sink+":"+SinkPort)
if err != nil {
return fmt.Errorf("Error while monitor is binding address: %v", err)
}
m.listener = ln
dbg.Lvl2("Monitor listening for stats on", Sink, ":", SinkPort)
finished := false
go func() {
for {
if finished {
break
}
conn, err := ln.Accept()
if err != nil {
operr, ok := err.(*net.OpError)
// We cant accept anymore we closed the listener
if ok && operr.Op == "accept" {
break
}
dbg.Lvl2("Error while monitor accept connection:", operr)
continue
}
dbg.Lvl3("Monitor: new connection from", conn.RemoteAddr().String())
m.mutexConn.Lock()
m.conns[conn.RemoteAddr().String()] = conn
go m.handleConnection(conn)
m.mutexConn.Unlock()
}
}()
for !finished {
select {
// new stats
case measure := <-m.measures:
m.update(measure)
// end of a peer conn
case peer := <-m.done:
dbg.Lvl3("Connections left:", len(m.conns))
m.mutexConn.Lock()
delete(m.conns, peer)
m.mutexConn.Unlock()
// end of monitoring,
if len(m.conns) == 0 {
m.listener.Close()
finished = true
break
}
}
}
dbg.Lvl2("Monitor finished waiting !")
m.conns = make(map[string]net.Conn)
return nil
}
func main() {
Current := new(Node)
Magic := [4]byte{0xF9, 0xBE, 0xB4, 0xD9}
Current.IP = net.IPv4(0, 1, 2, 3)
Current.PublicKey = "my_cool_key"
Current.Last_Block = "0"
Parser, _ := BitCoSi.NewParser("/home/lefteris/hi/blocks", Magic)
server := "localhost:2011"
// suite = app.GetSuite("25519")
dbg.Lvl2("Connecting to", server)
conn := coconet.NewTCPConn(server)
err := conn.Connect()
if err != nil {
dbg.Fatal("Error when getting the connection to the host:", err)
}
dbg.Lvl1("Connected to ", server)
go wait_for_blocks()
for i := 0; i < 10; i++ {
Current.transaction_pool = Parser.Parse(i, 10+i)
for len(Current.transaction_pool) > 0 {
msg := &BitCoSi.BitCoSiMessage{
Type: BitCoSi.TransactionAnnouncmentType,
ReqNo: 0,
Treq: &BitCoSi.TransactionAnnouncment{Val: Current.transaction_pool[0]}}
err = conn.PutData(msg)
Current.transaction_pool = Current.transaction_pool[1:]
if err != nil {
dbg.Fatal("Couldn't send hash-message to server: ", err)
}
time.Sleep(10 * time.Millisecond)
}
}
wait_for_Key_blocks()
time.Sleep(900000 * time.Millisecond)
// Asking to close the connection
err = conn.PutData(&BitCoSi.BitCoSiMessage{
ReqNo: 1,
Type: BitCoSi.BitCoSiClose,
})
conn.Close()
dbg.Lvl2("Connection closed with server")
}
// The core of the file: read any input from the connection and outputs it into
// the server connection
func proxyConnection(conn net.Conn, done chan bool) {
dec := json.NewDecoder(conn)
nerr := 0
for {
m := Measure{}
// Receive data
if err := dec.Decode(&m); err != nil {
if err == io.EOF {
break
}
dbg.Lvl1("Error receiving data from", conn.RemoteAddr().String(), ":", err)
nerr += 1
if nerr > 1 {
dbg.Lvl1("Too many errors from", conn.RemoteAddr().String(), ": Abort connection")
break
}
}
dbg.Lvl3("Proxy received", m)
// Implement our own ready-count, so it doesn't have to go through the
// main monitor which might be far away.
switch m.Name {
case "ready":
atomic.AddInt64(&readyCount, 1)
case "ready_count":
m.Ready = int(readyCount)
err := json.NewEncoder(conn).Encode(m)
if err != nil {
dbg.Lvl2("Couldn't send ready-result back to client")
break
}
default:
// Proxy data - add who is sending, as we only have one channel
// to the server
m.Sender = conn.RemoteAddr().String()
if err := serverEnc.Encode(m); err != nil {
dbg.Lvl2("Error proxying data :", err)
break
}
if m.Name == "end" {
// the end
dbg.Lvl2("Proxy detected end of measurement. Closing connection.")
break
}
}
}
conn.Close()
done <- true
}
func main() {
deter.ReadConfig()
// The flags are defined in lib/app
app.FlagInit()
flag.Parse()
setup_deter()
var wg sync.WaitGroup
virts := physToServer[app.RunFlags.PhysAddr]
if len(virts) > 0 {
dbg.Lvl3("starting", len(virts), "servers of", deter.App, "on", virts)
for _, name := range virts {
dbg.Lvl3("Starting", name, "on", app.RunFlags.PhysAddr)
wg.Add(1)
go func(nameport string) {
dbg.Lvl3("Running on", app.RunFlags.PhysAddr, "starting", nameport, rootname)
defer wg.Done()
amroot := nameport == rootname
args := []string{
"-hostname=" + nameport,
"-physaddr=" + app.RunFlags.PhysAddr,
"-amroot=" + strconv.FormatBool(amroot),
"-test_connect=" + strconv.FormatBool(testConnect),
"-logger=" + app.RunFlags.Logger,
"-mode=server",
}
dbg.Lvl3("Starting on", app.RunFlags.PhysAddr, "with args", args)
cmdApp := exec.Command("./"+deter.App, args...)
cmdApp.Stdout = os.Stdout
cmdApp.Stderr = os.Stderr
err := cmdApp.Run()
if err != nil {
dbg.Lvl1("cmd run:", err)
}
dbg.Lvl3("Finished with app", app.RunFlags.PhysAddr)
}(name)
}
dbg.Lvl3(app.RunFlags.PhysAddr, "Finished starting apps")
wg.Wait()
} else {
dbg.Lvl2("No apps for", app.RunFlags.PhysAddr)
}
dbg.Lvl2(app.RunFlags.PhysAddr, "forkexec exited")
}
// LoopRounds starts the system by sending a round of type
// 'roundType' every second for number of 'rounds'.
// If 'rounds' < 0, it loops forever, or until you call
// peer.Close().
func (peer *Peer) LoopRounds(roundType string, rounds int) {
dbg.Lvl3("Stamp-server", peer.Node.Name(), "starting with IsRoot=", peer.IsRoot(peer.ViewNo))
ticker := time.NewTicker(sign.ROUND_TIME)
firstRound := peer.Node.LastRound()
if !peer.IsRoot(peer.ViewNo) {
// Children don't need to tick, only the root.
ticker.Stop()
}
for {
select {
case nextRole := <-peer.ViewChangeCh():
dbg.Lvl2(peer.Name(), "assuming next role is", nextRole)
case <-peer.CloseChan:
dbg.Lvl3("Server-peer", peer.Name(), "has closed the connection")
return
case <-ticker.C:
dbg.Lvl3("Ticker is firing in", peer.Hostname)
roundNbr := peer.LastRound() - firstRound
if roundNbr >= rounds && rounds >= 0 {
dbg.Lvl3(peer.Name(), "reached max round: closing",
roundNbr, ">=", rounds)
ticker.Stop()
if peer.IsRoot(peer.ViewNo) {
dbg.Lvl3("As I'm root, asking everybody to terminate")
peer.SendCloseAll()
}
} else {
if peer.IsRoot(peer.ViewNo) {
dbg.Lvl2(peer.Name(), "Stamp server in round",
roundNbr+1, "of", rounds)
round, err := sign.NewRoundFromType(roundType, peer.Node)
if err != nil {
dbg.Fatal("Couldn't create", roundType, err)
}
err = peer.StartAnnouncement(round)
if err != nil {
dbg.Lvl3(err)
time.Sleep(1 * time.Second)
break
}
} else {
dbg.Lvl3(peer.Name(), "running as regular")
}
}
}
}
}
// For testing the different round-types
// Every round-type is in his own Test*-method,
// so one can easily run just a given round-test
func testRound(t *testing.T, roundType string) {
dbg.TestOutput(testing.Verbose(), 4)
dbg.Lvl2("Testing", roundType)
peer1, peer2 := createPeers()
round, err := sign.NewRoundFromType(roundType, peer1.Node)
if err != nil {
t.Fatal("Couldn't create", roundType, "round:", err)
}
peer1.StartAnnouncement(round)
time.Sleep(time.Second)
var cosi *sign.CosiStruct
switch roundType {
case sign.RoundCosiType:
cosi = round.(*sign.RoundCosi).Cosi
case sign.RoundExceptionType:
cosi = round.(*sign.RoundException).Cosi
case conode.RoundStamperType:
cosi = round.(*conode.RoundStamper).Cosi
case conode.RoundStamperListenerType:
cosi = round.(*conode.RoundStamperListener).Cosi
}
if cosi.R_hat == nil {
t.Fatal("Didn't finish round - R_hat empty")
}
err = cosi.VerifyResponses()
if err != nil {
t.Fatal("Couldn't verify responses")
}
peer1.Close()
peer2.Close()
}
// GetStamp contacts the "server" and waits for the "msg" to
// be signed
// If server is empty, it will contact one randomly
func (s *Stamp) GetStamp(msg []byte, server string) (*TimeStampMessage, error) {
if server == "" {
server = s.Config.Hosts[rand.Intn(len(s.Config.Hosts))]
}
dbg.Lvl2("StampClient will stamp on server", server)
portstr := strconv.Itoa(cliutils.GetPort(server, DefaultPort) + 1)
err := s.connect(cliutils.GetAddress(server) + ":" + portstr)
if err != nil {
return nil, err
}
tsm, err := s.stamp(msg)
if err != nil {
return nil, err
}
err = s.disconnect()
if err != nil {
return nil, err
}
// Verify if what we received is correct
if !VerifySignature(s.Suite, tsm.Srep, s.X0, msg) {
return nil, fmt.Errorf("Verification of signature failed")
}
return tsm, nil
}
// ConnectTo will connect to the given host and start the SYN exchange (public key + id)
func (p *Peer) ConnectTo(host string) error {
tick := time.NewTicker(ConnWaitRetry)
count := 0
for range tick.C {
// connect
conn, err := net.Dial("tcp", host)
if err != nil {
// we have tried too many times => abort
if count == ConnRetry {
tick.Stop()
dbg.Fatal(p.Name, "could not connect to", host, "", ConnRetry, "times. Abort.")
// let's try again one more time
} else {
dbg.Lvl2(p.Name, "could not connect to", host, ". Retry in", ConnWaitRetry.String())
count += 1
}
}
// handle successful connection
dbg.Lvl3(p.Name, "has connected with peer", host)
tick.Stop()
// start to syn with the respective peer
go p.synWithPeer(conn)
break
}
return nil
}
func (round *RoundStamperListener) SignatureBroadcast(in *sign.SigningMessage, out []*sign.SigningMessage) error {
round.RoundStamper.SignatureBroadcast(in, out)
if round.IsRoot {
in.SBm.Messages = round.roundMessages
}
for _, o := range out {
o.SBm.Messages = in.SBm.Messages
}
for i, msg := range round.ClientQueue {
respMessg := &TimeStampMessage{
Type: StampSignatureType,
ReqNo: SeqNo(msg.ReqNo),
Srep: &StampSignature{
SuiteStr: round.Suite.String(),
Timestamp: round.Timestamp,
MerkleRoot: round.MTRoot,
Prf: round.RoundStamper.CombProofs[i],
Response: in.SBm.R0_hat,
Challenge: in.SBm.C,
AggCommit: in.SBm.V0_hat,
AggPublic: in.SBm.X0_hat,
}}
round.PutToClient(msg.To, respMessg)
dbg.Lvl2("Sent signature response back to client", msg.To)
}
return nil
}
// Filter out a serie of values
func (df *DataFilter) Filter(measure string, values []float64) []float64 {
// do we have a filter for this measure ?
if _, ok := df.percentiles[measure]; !ok {
return values
}
// Compute the percentile value
max, err := stats.PercentileNearestRank(values, df.percentiles[measure])
if err != nil {
dbg.Lvl2("Monitor: Error filtering data:", err)
return values
}
// Find the index from where to filter
maxIndex := -1
for i, v := range values {
if v > max {
maxIndex = i
}
}
// check if we foud something to filter out
if maxIndex == -1 {
dbg.Lvl3("Filtering: nothing to filter for", measure)
return values
}
// return the values below the percentile
dbg.Lvl3("Filtering: filters out", measure, ":", maxIndex, "/", len(values))
return values[:maxIndex]
}
func (sn *Node) CloseAll(view int) error {
dbg.Lvl2(sn.Name(), "received CloseAll on", view)
// At the leaves
if len(sn.Children(view)) == 0 {
dbg.Lvl3(sn.Name(), "in CloseAll is root leaf")
} else {
dbg.Lvl3(sn.Name(), "in CloseAll is calling", len(sn.Children(view)), "children")
// Inform all children of announcement
messgs := make([]coconet.BinaryMarshaler, sn.NChildren(view))
for i := range messgs {
sm := SigningMessage{
Suite: sn.Suite().String(),
Type: CloseAll,
ViewNbr: view,
//LastSeenVote: int(atomic.LoadInt64(&sn.LastSeenVote)),
}
messgs[i] = &sm
}
ctx := context.TODO()
if err := sn.PutDown(ctx, view, messgs); err != nil {
return err
}
}
dbg.Lvl3("Closing down shop", sn.Isclosed)
sn.Close()
return nil
}
// Checks the correct setup of the signature
func TestsetupTestSig(t *testing.T) {
setupTestSig()
if !reply.AggPublic.Equal(X0) {
t.Error("X0 is not equal")
} else {
dbg.Lvl2("X0 is OK")
}
}
func readConfig() *app.ConfigConode {
conf := &app.ConfigConode{}
if err := app.ReadTomlConfig(conf, "testdata/config.toml"); err != nil {
dbg.Fatal("Could not read toml config... : ", err)
}
dbg.Lvl2("Configuration file read")
suite = app.GetSuite(conf.Suite)
return conf
}
// Verifies whether the X0 and hash is correct
func TestVerifySignature(t *testing.T) {
setupTestSig()
if !conode.VerifySignature(suite, &reply, X0, hash) {
t.Error("Verification failed")
} else {
dbg.Lvl2("Verification passed")
}
}
func (sn *Node) ShouldIFail(phase string) bool {
if sn.FailureRate > 0 {
// If we were manually set to always fail
if sn.Host.(*coconet.FaultyHost).IsDead() ||
sn.Host.(*coconet.FaultyHost).IsDeadFor(phase) {
dbg.Lvl2(sn.Name(), "dead for "+phase)
return true
}
// If we were only given a probability of failing
if p := sn.Rand.Int() % 100; p < sn.FailureRate {
dbg.Lvl2(sn.Name(), "died for "+phase, "p", p, "with prob", sn.FailureRate)
return true
}
}
return false
}
// StopMonitor will close every connections it has
// And will stop updating the stats
func (m *Monitor) Stop() {
dbg.Lvl2("Monitor Stop")
m.listener.Close()
m.mutexConn.Lock()
for _, c := range m.conns {
c.Close()
}
m.mutexConn.Unlock()
}
// Verifies whether the Challenge is correct
func TestVerifyChallenge(t *testing.T) {
setupTestSig()
err := conode.VerifyChallenge(suite, &reply)
if err != nil {
t.Error("Verification failed")
} else {
dbg.Lvl2("Verification passed")
}
}
// SImply adds all the public keys we give to it
func aggregateKeys(pubs []string) abstract.Point {
k0 := suite.Point().Null()
for i, ki := range pubs {
// convert from string to public key
kip, _ := cliutils.ReadPub64(suite, strings.NewReader(ki))
k0 = k0.Add(k0, kip)
dbg.Lvl2("Public key n#", i, ":", kip)
}
dbg.Lvl1("Aggregated public key:", k0)
return k0
}
// Returns name of node who should be the root for the next view
// round robin is used on the array of host names to determine the next root
func (sn *Node) RootFor(view int) string {
dbg.Lvl2(sn.Name(), "Root for view", view)
var hl []string
if view == 0 {
hl = sn.HostListOn(view)
} else {
// we might not have the host list for current view
// safer to use the previous view's hostlist, always
hl = sn.HostListOn(view - 1)
}
return hl[view%len(hl)]
}
func ExampleLevel2() {
dbg.DebugVisible = 2
dbg.Lvl1("Level1")
dbg.Lvl2("Level2")
dbg.Lvl3("Level3")
dbg.Lvl4("Level4")
dbg.Lvl5("Level5")
// Output:
// 1: ( dbg_test.ExampleLevel2: 0) - Level1
// 2: ( dbg_test.ExampleLevel2: 0) - Level2
}
func (round *RoundSetup) Commitment(in []*SigningMessage, out *SigningMessage) error {
out.Com.Messages = 1
if !round.IsLeaf {
for _, i := range in {
out.Com.Messages += i.Com.Messages
}
}
if round.IsRoot {
dbg.Lvl2("Number of nodes found:", out.Com.Messages)
round.Counted <- out.Com.Messages
}
return nil
}
// handleConnection will decode the data received and aggregates it into its
// stats
func (m *Monitor) handleConnection(conn net.Conn) {
dec := json.NewDecoder(conn)
enc := json.NewEncoder(conn)
nerr := 0
for {
measure := Measure{}
if err := dec.Decode(&measure); err != nil {
// if end of connection
if err == io.EOF {
break
}
// otherwise log it
dbg.Lvl2("Error monitor decoding from", conn.RemoteAddr().String(), ":", err)
nerr += 1
if nerr > 1 {
dbg.Lvl2("Monitor: too many errors from", conn.RemoteAddr().String(), ": Abort.")
break
}
}
dbg.Lvlf3("Monitor: received a Measure from %s: %+v", conn.RemoteAddr().String(), measure)
// Special case where the measurement is indicating a FINISHED step
switch strings.ToLower(measure.Name) {
case "end":
dbg.Lvl3("Finishing monitor")
m.done <- conn.RemoteAddr().String()
case "ready":
m.stats.Ready++
dbg.Lvl3("Increasing counter to", m.stats.Ready)
case "ready_count":
dbg.Lvl3("Sending stats")
m_send := measure
m_send.Ready = m.stats.Ready
enc.Encode(m_send)
default:
m.measures <- measure
}
}
}
// Will build the application
func (d *Localhost) Build(build string) error {
src, _ := filepath.Rel(d.LocalDir, d.AppDir+"/"+d.App)
dst := d.RunDir + "/" + d.App
start := time.Now()
// build for the local machine
res, err := cliutils.Build(src, dst, runtime.GOARCH, runtime.GOOS)
if err != nil {
dbg.Fatal("Error while building for localhost (src", src, ", dst", dst, ":", res)
}
dbg.Lvl3("Localhost: Build src", src, ", dst", dst)
dbg.Lvl3("Localhost: Results of localhost build:", res)
dbg.Lvl2("Localhost: build finished in", time.Since(start))
return err
}
// Verifies whether the Schnorr signature is correct
func TestVerifySchnorr(t *testing.T) {
setupTestSig()
var b bytes.Buffer
if err := binary.Write(&b, binary.LittleEndian, reply.Timestamp); err != nil {
dbg.Lvl1("Error marshaling the timestamp for signature verification")
}
msg := append(b.Bytes(), []byte(reply.MerkleRoot)...)
err := conode.VerifySchnorr(suite, msg, X0, reply.Challenge, reply.Response)
if err != nil {
dbg.Fatal("Schnorr verification failed")
} else {
dbg.Lvl2("Schnorr OK")
}
}
func wait_for_blocks() {
server := "localhost:2011"
suite = app.GetSuite("25519")
dbg.Lvl2("Connecting to", server)
conn := coconet.NewTCPConn(server)
err := conn.Connect()
if err != nil {
dbg.Fatal("Error when getting the connection to the host:", err)
}
dbg.Lvl1("Connected to ", server)
for i := 0; i < 1000; i++ {
time.Sleep(1 * time.Second)
msg := &BitCoSi.BitCoSiMessage{
Type: BitCoSi.BlockRequestType,
ReqNo: 0,
}
err = conn.PutData(msg)
if err != nil {
dbg.Fatal("Couldn't send hash-message to server: ", err)
}
dbg.Lvl1("Sent signature request")
// Wait for the signed message
tsm := new(BitCoSi.BitCoSiMessage)
tsm.Brep = &BitCoSi.BlockReply{}
tsm.Brep.SuiteStr = suite.String()
err = conn.GetData(tsm)
if err != nil {
dbg.Fatal("Error while receiving signature:", err)
}
//dbg.Lvlf1("Got signature response %+v", tsm.Brep)
T := new(BitCoSi.TrBlock)
T.Block = tsm.Brep.Block
T.Print()
dbg.Lvlf1("Response %v ", tsm.Brep.Response)
}
// Asking to close the connection
err = conn.PutData(&BitCoSi.BitCoSiMessage{
ReqNo: 1,
Type: BitCoSi.BitCoSiClose,
})
conn.Close()
}
// Update will update the Stats with this given measure
func (s *Stats) Update(m Measure) {
var meas *Measurement
meas, ok := s.measures[m.Name]
if !ok {
// if we already written some values, we can not take new ones
if s.valuesWritten {
dbg.Lvl2("Stats Update received unknown type of measure:", m.Name)
return
}
meas = NewMeasurement(m.Name, s.filter)
s.measures[m.Name] = meas
s.keys = append(s.keys, m.Name)
}
meas.Update(m)
}
// returns a tuple of start and stop configurations to run
func getStartStop(rcs int) (int, int) {
ss_str := strings.Split(simRange, ":")
start, err := strconv.Atoi(ss_str[0])
stop := rcs
if err == nil {
stop = start
if len(ss_str) > 1 {
stop, err = strconv.Atoi(ss_str[1])
if err != nil {
stop = rcs
}
}
}
dbg.Lvl2("Range is", start, "...", stop)
return start, stop
}