// shouldRunContinuousQuery returns true if the CQ should be schedule to run. It will use the
// lastRunTime of the CQ and the rules for when to run set through the query to determine
// if this CQ should be run
func (cq *ContinuousQuery) shouldRunContinuousQuery(now time.Time) (bool, time.Time, error) {
// if it's not aggregated we don't run it
if cq.q.IsRawQuery {
return false, cq.LastRun, errors.New("continuous queries must be aggregate queries")
}
// since it's aggregated we need to figure how often it should be run
interval, err := cq.q.GroupByInterval()
if err != nil {
return false, cq.LastRun, err
}
// allow the interval to be overwritten by the query's resample options
resampleEvery := interval
if cq.Resample.Every != 0 {
resampleEvery = cq.Resample.Every
}
// if we've passed the amount of time since the last run, or there was no last run, do it up
if cq.HasRun {
nextRun := cq.LastRun.Add(resampleEvery)
if nextRun.UnixNano() <= now.UnixNano() {
return true, nextRun, nil
}
} else {
return true, now, nil
}
return false, cq.LastRun, nil
}
func setClock(t time.Time) error {
tv := syscall.NsecToTimeval(t.UnixNano())
if err := syscall.Settimeofday(&tv); err != nil {
return errors.New("settimeofday: " + err.Error())
}
return nil
}
func (d *deadline) setTime(t time.Time) {
if t.IsZero() {
d.set(0)
} else {
d.set(t.UnixNano())
}
}
// Route routes an update packet to the correct server.
func (r *Router) Route(cancelSignal <-chan bool, uaid, chid string, version int64, sentAt time.Time, logID string) (err error) {
startTime := time.Now()
locator := r.Locator()
if locator == nil {
if r.logger.ShouldLog(ERROR) {
r.logger.Error("router", "No discovery service set; unable to route message",
LogFields{"rid": logID, "uaid": uaid, "chid": chid})
}
r.metrics.Increment("router.broadcast.error")
return ErrNoLocator
}
segment := capn.NewBuffer(nil)
routable := NewRootRoutable(segment)
routable.SetChannelID(chid)
routable.SetVersion(version)
routable.SetTime(sentAt.UnixNano())
contacts, err := locator.Contacts(uaid)
if err != nil {
if r.logger.ShouldLog(CRITICAL) {
r.logger.Critical("router", "Could not query discovery service for contacts",
LogFields{"rid": logID, "error": err.Error()})
}
r.metrics.Increment("router.broadcast.error")
return err
}
if r.logger.ShouldLog(DEBUG) {
r.logger.Debug("router", "Fetched contact list from discovery service",
LogFields{"rid": logID, "servers": strings.Join(contacts, ", ")})
}
if r.logger.ShouldLog(INFO) {
r.logger.Info("router", "Sending push...", LogFields{
"rid": logID,
"uaid": uaid,
"chid": chid,
"version": strconv.FormatInt(version, 10),
"time": strconv.FormatInt(sentAt.UnixNano(), 10)})
}
ok, err := r.notifyAll(cancelSignal, contacts, uaid, segment, logID)
endTime := time.Now()
if err != nil {
if r.logger.ShouldLog(WARNING) {
r.logger.Warn("router", "Could not post to server",
LogFields{"rid": logID, "error": err.Error()})
}
r.metrics.Increment("router.broadcast.error")
return err
}
var counterName, timerName string
if ok {
counterName = "router.broadcast.hit"
timerName = "updates.routed.hits"
} else {
counterName = "router.broadcast.miss"
timerName = "updates.routed.misses"
}
r.metrics.Increment(counterName)
r.metrics.Timer(timerName, endTime.Sub(sentAt))
r.metrics.Timer("router.handled", endTime.Sub(startTime))
return nil
}
func (sl *scrapeLoop) report(start time.Time, duration time.Duration, err error) {
sl.scraper.report(start, duration, err)
ts := model.TimeFromUnixNano(start.UnixNano())
var health model.SampleValue
if err == nil {
health = 1
}
healthSample := &model.Sample{
Metric: model.Metric{
model.MetricNameLabel: scrapeHealthMetricName,
},
Timestamp: ts,
Value: health,
}
durationSample := &model.Sample{
Metric: model.Metric{
model.MetricNameLabel: scrapeDurationMetricName,
},
Timestamp: ts,
Value: model.SampleValue(float64(duration) / float64(time.Second)),
}
sl.reportAppender.Append(healthSample)
sl.reportAppender.Append(durationSample)
}
// advance cycles the buckets at each level until the latest bucket in
// each level can hold the time specified.
func (ts *timeSeries) advance(t time.Time) {
if !t.After(ts.levels[0].end) {
return
}
for i := 0; i < len(ts.levels); i++ {
level := ts.levels[i]
if !level.end.Before(t) {
break
}
// If the time is sufficiently far, just clear the level and advance
// directly.
if !t.Before(level.end.Add(level.size * time.Duration(ts.numBuckets))) {
for _, b := range level.buckets {
ts.resetObservation(b)
}
level.end = time.Unix(0, (t.UnixNano()/level.size.Nanoseconds())*level.size.Nanoseconds())
}
for t.After(level.end) {
level.end = level.end.Add(level.size)
level.newest = level.oldest
level.oldest = (level.oldest + 1) % ts.numBuckets
ts.resetObservation(level.buckets[level.newest])
}
t = level.end
}
}
// Backup will write a tar archive of any TSM files modified since the passed
// in time to the passed in writer. The basePath will be prepended to the names
// of the files in the archive. It will force a snapshot of the WAL first
// then perform the backup with a read lock against the file store. This means
// that new TSM files will not be able to be created in this shard while the
// backup is running. For shards that are still acively getting writes, this
// could cause the WAL to backup, increasing memory usage and evenutally rejecting writes.
func (e *Engine) Backup(w io.Writer, basePath string, since time.Time) error {
if err := e.WriteSnapshot(); err != nil {
return err
}
e.FileStore.mu.RLock()
defer e.FileStore.mu.RUnlock()
var files []FileStat
// grab all the files and tombstones that have a modified time after since
for _, f := range e.FileStore.files {
if stat := f.Stats(); stat.LastModified > since.UnixNano() {
files = append(files, f.Stats())
}
for _, t := range f.TombstoneFiles() {
if t.LastModified > since.UnixNano() {
files = append(files, f.Stats())
}
}
}
tw := tar.NewWriter(w)
defer tw.Close()
for _, f := range files {
if err := e.writeFileToBackup(f, basePath, tw); err != nil {
return err
}
}
return nil
}
// Given a set of arguments for index, type, id, data create a set of bytes that is formatted for bulkd index
// http://www.elasticsearch.org/guide/reference/api/bulk.html
func WriteBulkBytes(op string, index string, _type string, id, parent, ttl string, date *time.Time, data interface{}) ([]byte, error) {
// only index and update are currently supported
if op != "index" && op != "update" && op != "create" {
return nil, errors.New(fmt.Sprintf("Operation '%s' is not yet supported", op))
}
// First line
buf := bytes.Buffer{}
buf.WriteString(fmt.Sprintf(`{"%s":{"_index":"`, op))
buf.WriteString(index)
buf.WriteString(`","_type":"`)
buf.WriteString(_type)
buf.WriteString(`"`)
if len(id) > 0 {
buf.WriteString(`,"_id":"`)
buf.WriteString(id)
buf.WriteString(`"`)
}
if len(parent) > 0 {
buf.WriteString(`,"_parent":"`)
buf.WriteString(parent)
buf.WriteString(`"`)
}
if op == "update" {
buf.WriteString(`,"_retry_on_conflict":3`)
}
if len(ttl) > 0 {
buf.WriteString(`,"ttl":"`)
buf.WriteString(ttl)
buf.WriteString(`"`)
}
if date != nil {
buf.WriteString(`,"_timestamp":"`)
buf.WriteString(strconv.FormatInt(date.UnixNano()/1e6, 10))
buf.WriteString(`"`)
}
buf.WriteString(`}}`)
buf.WriteRune('\n')
//buf.WriteByte('\n')
switch v := data.(type) {
case *bytes.Buffer:
io.Copy(&buf, v)
case []byte:
buf.Write(v)
case string:
buf.WriteString(v)
default:
body, jsonErr := json.Marshal(data)
if jsonErr != nil {
return nil, jsonErr
}
buf.Write(body)
}
buf.WriteRune('\n')
return buf.Bytes(), nil
}
func (sl *scrapeLoop) report(start time.Time, duration time.Duration, err error) {
sl.scraper.report(start, duration, err)
ts := model.TimeFromUnixNano(start.UnixNano())
var health model.SampleValue
if err == nil {
health = 1
}
healthSample := &model.Sample{
Metric: model.Metric{
model.MetricNameLabel: scrapeHealthMetricName,
},
Timestamp: ts,
Value: health,
}
durationSample := &model.Sample{
Metric: model.Metric{
model.MetricNameLabel: scrapeDurationMetricName,
},
Timestamp: ts,
Value: model.SampleValue(float64(duration) / float64(time.Second)),
}
if err := sl.reportAppender.Append(healthSample); err != nil {
log.With("sample", healthSample).With("error", err).Warn("Scrape health sample discarded")
}
if err := sl.reportAppender.Append(durationSample); err != nil {
log.With("sample", durationSample).With("error", err).Warn("Scrape duration sample discarded")
}
}
func (ss *SimpleRate) Touch(key string, nowTs time.Time) {
var (
found bool
bucket *srateBucket
now = nowTs.UnixNano()
)
bucket, found = ss.hash[key]
if found {
// we already have the correct bucket
} else if len(ss.heap) < ss.size {
// create new bucket
bucket = &srateBucket{}
ss.hash[key] = bucket
bucket.key = key
heap.Push(&ss.heap, bucket)
} else {
// use minimum bucket
bucket = ss.heap[0]
delete(ss.hash, bucket.key)
ss.hash[key] = bucket
bucket.error, bucket.errorTs, bucket.errorRate =
bucket.count, bucket.countTs, bucket.countRate
bucket.key = key
}
bucket.count += 1
bucket.countRate = ss.count(bucket.countRate, bucket.countTs, now)
bucket.countTs = now
heap.Fix(&ss.heap, bucket.index)
}
func passDetails(
binary_path string,
begin_time time.Time,
duration time.Duration,
latitude_degrees,
longitude_degrees,
elevation_metres float64,
tle string,
resolution_seconds float64) ([]SatPoint, error) {
begin_timestamp := 1e-9 * float64(begin_time.UnixNano())
c := exec.Command("python", binary_path)
in_pipe, err := c.StdinPipe()
if err != nil {
return nil, err
}
defer in_pipe.Close()
out_pipe, err := c.StdoutPipe()
if err != nil {
return nil, err
}
defer out_pipe.Close()
if err := c.Start(); err != nil {
return nil, err
}
defer c.Wait()
fmt.Fprintf(in_pipe, "%f\n%f\n%f\n%f\n%f\n%s\n%f\n",
begin_timestamp,
duration.Seconds(),
latitude_degrees,
longitude_degrees,
elevation_metres,
tle,
resolution_seconds)
in_pipe.Close()
var n int
_, err = fmt.Fscanln(out_pipe, &n)
if err != nil {
return nil, err
}
r := make([]SatPoint, n)
for i := 0; i < n; i++ {
p := &r[i]
fmt.Fscanln(out_pipe,
&p.Timestamp,
&p.AzimuthDegrees,
&p.AltitudeDegrees,
&p.Range,
&p.RangeVelocity,
&p.LatitudeDegrees,
&p.LongitudeDegrees,
&p.Elevation,
&p.IsEclipsed)
}
return r, nil
}
func (h *MatrixLoginHandler) makeLoginResponse(userID string, expires time.Time, nonce string) (*matrixLoginResponse, error) {
var response matrixLoginResponse
accessToken, err := macaroon.New([]byte(h.macaroonSecret), "key", h.serverName)
if err != nil {
return nil, err
}
accessToken.AddFirstPartyCaveat("gen = 1")
accessToken.AddFirstPartyCaveat(fmt.Sprintf("user_id = %s", userID))
refreshToken := accessToken.Clone()
accessToken.AddFirstPartyCaveat("type = access")
accessToken.AddFirstPartyCaveat(fmt.Sprintf("time < %d", expires.UnixNano()/1000000))
refreshToken.AddFirstPartyCaveat("type = refresh")
refreshToken.AddFirstPartyCaveat(fmt.Sprintf("nonce = %s", nonce))
if response.AccessToken, err = encodeMacaroon(accessToken); err != nil {
return nil, err
}
if response.RefreshToken, err = encodeMacaroon(refreshToken); err != nil {
return nil, err
}
response.HomeServer = h.serverName
response.UserID = userID
return &response, nil
}
// TimeToTimestamp is a utility function that converts a time.Time into
// a *google_protobuf.Timestamp.
func TimeToTimestamp(t time.Time) *google_protobuf.Timestamp {
unixNano := t.UnixNano()
return &google_protobuf.Timestamp{
Seconds: unixNano / int64(time.Second),
Nanos: int32(unixNano % int64(time.Second)),
}
}
func (d *Datum) stamp(timestamp time.Time) {
if timestamp.IsZero() {
atomic.StoreInt64(&d.Time, time.Now().UTC().UnixNano())
} else {
atomic.StoreInt64(&d.Time, timestamp.UnixNano())
}
}
// pnTime converts Go time.Time to Proton millisecond Unix time.
func pnTime(t time.Time) C.pn_timestamp_t {
secs := t.Unix()
// Note: sub-second accuracy is not guaraunteed if the Unix time in
// nanoseconds cannot be represented by an int64 (sometime around year 2260)
msecs := (t.UnixNano() % int64(time.Second)) / int64(time.Millisecond)
return C.pn_timestamp_t(secs*1000 + msecs)
}
func (actual ActualLRP) ShouldRestartCrash(now time.Time, calc RestartCalculator) bool {
if actual.State != ActualLRPStateCrashed {
return false
}
return calc.ShouldRestart(now.UnixNano(), actual.Since, actual.CrashCount)
}
// findTraceTimes finds the minimum and maximum timespan event times for the
// given set of events, or returns ok == false if there are no such events.
func findTraceTimes(events []Event) (start, end time.Time, ok bool) {
// Find the start and end time of the trace.
var (
eStart, eEnd time.Time
haveTimes = false
)
for _, e := range events {
e, ok := e.(TimespanEvent)
if !ok {
continue
}
if !haveTimes {
haveTimes = true
eStart = e.Start()
eEnd = e.End()
continue
}
if v := e.Start(); v.UnixNano() < eStart.UnixNano() {
eStart = v
}
if v := e.End(); v.UnixNano() > eEnd.UnixNano() {
eEnd = v
}
}
if !haveTimes {
// We didn't find any timespan events at all, so we're done here.
ok = false
return
}
return eStart, eEnd, true
}
// Writing to a Socket channel is slightly more involved than reading from
// it. If the channel was closed, it must be reestablished.
func (t *SocketChannel) Write(p []byte) (n int, err error) {
var deadline time.Time
if t.timeout > 0 {
deadline = time.Now().Add(t.timeout)
}
for {
if deadline.UnixNano() > 0 {
t.conn.SetWriteDeadline(deadline)
}
n, err = t.conn.Write(p)
if err == nil {
return
} else {
if err == io.ErrClosedPipe {
t.conn.Close()
// Don't try to wait beyond the deadline, that's pointless.
if time.Now().After(deadline) {
return
}
if t.timeout > 0 {
t.conn, err = net.DialTimeout(t.proto, t.peerAddr, t.timeout)
} else {
t.conn, err = net.Dial(t.proto, t.peerAddr)
}
if err != nil {
return
}
} else {
return
}
}
}
}
func recordScrapeHealth(
sampleAppender storage.SampleAppender,
timestamp time.Time,
baseLabels model.LabelSet,
health TargetHealth,
scrapeDuration time.Duration,
) {
healthMetric := make(model.Metric, len(baseLabels)+1)
durationMetric := make(model.Metric, len(baseLabels)+1)
healthMetric[model.MetricNameLabel] = scrapeHealthMetricName
durationMetric[model.MetricNameLabel] = scrapeDurationMetricName
for ln, lv := range baseLabels {
healthMetric[ln] = lv
durationMetric[ln] = lv
}
ts := model.TimeFromUnixNano(timestamp.UnixNano())
healthSample := &model.Sample{
Metric: healthMetric,
Timestamp: ts,
Value: health.value(),
}
durationSample := &model.Sample{
Metric: durationMetric,
Timestamp: ts,
Value: model.SampleValue(float64(scrapeDuration) / float64(time.Second)),
}
sampleAppender.Append(healthSample)
sampleAppender.Append(durationSample)
}
// Moment returns a pointer to the current moment structure corresponding to time t.
func (x *SlidingMoment) Slot(t time.Time) *Moment {
slot := t.UnixNano() / x.slotdur
if !x.spin(slot) {
return nil
}
return &x.slots[int(slot%int64(len(x.slots)))]
}
// loadBufferedEvents iterates over the cached events in the buffer
// and returns those that were emitted between two specific dates.
// It uses `time.Unix(seconds, nanoseconds)` to generate valid dates with those arguments.
// It filters those buffered messages with a topic function if it's not nil, otherwise it adds all messages.
func (e *Events) loadBufferedEvents(since, until time.Time, topic func(interface{}) bool) []eventtypes.Message {
var buffered []eventtypes.Message
if since.IsZero() && until.IsZero() {
return buffered
}
var sinceNanoUnix int64
if !since.IsZero() {
sinceNanoUnix = since.UnixNano()
}
var untilNanoUnix int64
if !until.IsZero() {
untilNanoUnix = until.UnixNano()
}
for i := len(e.events) - 1; i >= 0; i-- {
ev := e.events[i]
if ev.TimeNano < sinceNanoUnix {
break
}
if untilNanoUnix > 0 && ev.TimeNano > untilNanoUnix {
continue
}
if topic == nil || topic(ev) {
buffered = append([]eventtypes.Message{ev}, buffered...)
}
}
return buffered
}
func (t *Target) report(app storage.SampleAppender, start time.Time, duration time.Duration, err error) {
t.status.setLastScrape(start)
t.status.setLastError(err)
ts := model.TimeFromUnixNano(start.UnixNano())
var health model.SampleValue
if err == nil {
health = 1
}
healthSample := &model.Sample{
Metric: model.Metric{
model.MetricNameLabel: scrapeHealthMetricName,
},
Timestamp: ts,
Value: health,
}
durationSample := &model.Sample{
Metric: model.Metric{
model.MetricNameLabel: scrapeDurationMetricName,
},
Timestamp: ts,
Value: model.SampleValue(float64(duration) / float64(time.Second)),
}
app = t.wrapReportingAppender(app)
app.Append(healthSample)
app.Append(durationSample)
}
// evictBefore evicts traces that were created before t. The rs.mu lock
// must be held while calling evictBefore.
func (rs *RecentStore) evictBefore(t time.Time) {
evictStart := time.Now()
rs.lastEvicted = evictStart
tnano := t.UnixNano()
var toEvict []ID
for id, ct := range rs.created {
if ct < tnano {
toEvict = append(toEvict, id)
delete(rs.created, id)
}
}
if len(toEvict) == 0 {
return
}
if rs.Debug {
log.Printf("RecentStore: deleting %d traces created before %s (age check took %s)", len(toEvict), t, time.Since(evictStart))
}
// Spawn separate goroutine so we don't hold the rs.mu lock.
go func() {
deleteStart := time.Now()
if err := rs.DeleteStore.Delete(toEvict...); err != nil {
log.Printf("RecentStore: failed to delete traces: %s", err)
}
if rs.Debug {
log.Printf("RecentStore: finished deleting %d traces created before %s (took %s)", len(toEvict), t, time.Since(deleteStart))
}
}()
}
func (s *scheduler) schedule(e event) (err error) {
var on time.Time
var duration time.Duration
now := time.Now()
zone, _ := now.Zone()
if on, err = time.Parse("2006-01-02 "+time.Kitchen+" MST", now.Format("2006-01-02 ")+e.When+" "+zone); err != nil {
log.Println("could not parse when of '" + e.When + "' for " + e.What)
return
}
if duration, err = time.ParseDuration(e.Interval); err != nil {
log.Println("could not parse interval of '" + e.Interval + "' for " + e.What)
return
}
go func() {
log.Println("scheduled '" + e.What + "' for: " + on.String())
wait := time.Duration((on.UnixNano() - time.Now().UnixNano()) % int64(duration))
if wait < 0 {
wait += duration
}
time.Sleep(wait)
s.maybeRun(time.Now(), e)
for t := range time.NewTicker(duration).C {
s.maybeRun(t, e)
}
}()
return
}
// ===== CFDate =====
func convertTimeToCFDate(t time.Time) C.CFDateRef {
// truncate to milliseconds, to get a more predictable conversion
ms := int64(time.Duration(t.UnixNano()) / time.Millisecond * time.Millisecond)
nano := C.double(ms) / C.double(time.Second)
nano -= C.kCFAbsoluteTimeIntervalSince1970
return C.CFDateCreate(nil, C.CFAbsoluteTime(nano))
}
func buildExpectedLog(timestamp time.Time, requestId, method, path, sourceHost, sourcePort, dstHost, dstPort string) string {
extensions := []string{
fmt.Sprintf("rt=%d", timestamp.UnixNano()/int64(time.Millisecond)),
"cs1Label=userAuthenticationMechanism",
"cs1=oauth-access-token",
"cs2Label=vcapRequestId",
"cs2=" + requestId,
"request=" + path,
"requestMethod=" + method,
"src=" + sourceHost,
"spt=" + sourcePort,
"dst=" + dstHost,
"dpt=" + dstPort,
}
fields := []string{
"0",
"cloud_foundry",
"loggregator_trafficcontroller",
"1.0",
method + " " + path,
method + " " + path,
"0",
strings.Join(extensions, " "),
}
return "CEF:" + strings.Join(fields, "|")
}
func dateParse(date string) (epoch float64) {
// YYYY-MM-DDTHH:mm:ss.sssZ
var time Time.Time
var err error
{
date := date
if match := matchDateTimeZone.FindStringSubmatch(date); match != nil {
if match[2] == "Z" {
date = match[1] + "+0000"
} else {
date = match[1] + match[3] + match[4]
}
}
for _, layout := range dateLayoutList {
time, err = Time.Parse(layout, date)
if err == nil {
break
}
}
}
if err != nil {
return math.NaN()
}
return float64(time.UnixNano()) / (1000 * 1000) // UnixMilli()
}
// Init init the configuration file.
func InitConfig() (err error) {
var twepoch time.Time
MyConf = &Config{
PidFile: "/tmp/gosnowflake.pid",
Dir: "/dev/null",
Log: "./log/xml",
MaxProc: runtime.NumCPU(),
RPCBind: []string{"localhost:8080"},
ThriftBind: []string{"localhost:8081"},
DatacenterId: 0,
WorkerId: []int64{0},
Start: "2010-11-04 09:42:54",
ZKAddr: []string{"localhost:2181"},
ZKTimeout: time.Second * 15,
ZKPath: "/gosnowflake-servers",
}
if err = goConf.Parse(confPath); err != nil {
return
}
if err = goConf.Unmarshal(MyConf); err != nil {
return
}
if twepoch, err = time.Parse("2006-01-02 15:04:05", MyConf.Start); err != nil {
return
} else {
MyConf.Twepoch = twepoch.UnixNano() / int64(time.Millisecond)
}
return
}
func main() {
var t1 time.Time
t := time.Now()
log.Println(t.Unix(), t.UTC().Unix(), t.Local().Unix())
log.Println(t.Unix())
log.Println(t.UnixNano())
log.Println(time.Unix(0, t.UnixNano()).UTC())
log.Println(time.Unix(t.Unix(), 0).UTC())
log.Println(t.UTC())
log.Println(t.UTC().Local())
log.Println(t)
log.Println(t.Location())
log.Println(t.UTC().Location())
log.Println(t.Format("2006-01-02 15:04:05"))
log.Println(t1)
log.Println(t1.Format("2006-01-02 15:04:05"))
log.Println("default uinx nano ", t1.UnixNano())
log.Println(t.Format("15小时20分钟"))
td := time.Duration(9000000000000000000)
log.Println(td.Hours(), td.Minutes(), td.String())
log.Println(TranDurationToTime(td))
log.Println(t.UTC().UnixNano())
log.Println(time.Now().Date())
}
func (j *Jchan) WriteTime(t time.Time) error {
i := t.UnixNano() / 1000000
if err := binary.Write(j.w, binary.BigEndian, i); err != nil {
return err
}
return nil
}