import (
"errors"
"fmt"
+ "path"
"reflect"
"sync"
"sync/atomic"
var (
HealthCheckProbeInterval = time.Second // default health check probe interval
- HealthCheckReplyTimeout = time.Millisecond * 100 // timeout for reply to a health check probe
- HealthCheckThreshold = 1 // number of failed health checks until the error is reported
+ HealthCheckReplyTimeout = time.Millisecond * 250 // timeout for reply to a health check probe
+ HealthCheckThreshold = 2 // number of failed health checks until the error is reported
DefaultReplyTimeout = time.Second // default timeout for replies from VPP
)
connChan chan ConnectionEvent // connection status events are sent to this channel
- codec MessageCodec // message codec
- msgIDs map[string]uint16 // map of message IDs indexed by message name + CRC
- msgMap map[uint16]api.Message // map of messages indexed by message ID
+ codec MessageCodec // message codec
+ msgIDs map[string]uint16 // map of message IDs indexed by message name + CRC
+ msgMapByPath map[string]map[uint16]api.Message // map of messages indexed by message ID which are indexed by path
maxChannelID uint32 // maximum used channel ID (the real limit is 2^15, 32-bit is used for atomic operations)
channelsLock sync.RWMutex // lock for the channels map
msgControlPing api.Message
msgControlPingReply api.Message
+
+ apiTrace *trace // API tracer (disabled by default)
}
func newConnection(binapi adapter.VppAPI, attempts int, interval time.Duration) *Connection {
connChan: make(chan ConnectionEvent, NotificationChanBufSize),
codec: codec.DefaultCodec,
msgIDs: make(map[string]uint16),
- msgMap: make(map[uint16]api.Message),
+ msgMapByPath: make(map[string]map[uint16]api.Message),
channels: make(map[uint16]*Channel),
subscriptions: make(map[uint16][]*subscriptionCtx),
msgControlPing: msgControlPing,
msgControlPingReply: msgControlPingReply,
+ apiTrace: &trace{
+ list: make([]*api.Record, 0),
+ mux: &sync.Mutex{},
+ },
}
binapi.SetMsgCallback(c.msgCallback)
return c
if c == nil {
return 0, errors.New("nil connection passed in")
}
-
- if msgID, ok := c.msgIDs[getMsgNameWithCrc(msg)]; ok {
- return msgID, nil
- }
-
+ pkgPath := c.GetMessagePath(msg)
msgID, err := c.vppClient.GetMsgID(msg.GetMessageName(), msg.GetCrcString())
if err != nil {
return 0, err
}
-
+ if pathMsgs, pathOk := c.msgMapByPath[pkgPath]; !pathOk {
+ c.msgMapByPath[pkgPath] = make(map[uint16]api.Message)
+ c.msgMapByPath[pkgPath][msgID] = msg
+ } else if _, msgOk := pathMsgs[msgID]; !msgOk {
+ c.msgMapByPath[pkgPath][msgID] = msg
+ }
+ if _, ok := c.msgIDs[getMsgNameWithCrc(msg)]; ok {
+ return msgID, nil
+ }
c.msgIDs[getMsgNameWithCrc(msg)] = msgID
- c.msgMap[msgID] = msg
-
return msgID, nil
}
// LookupByID looks up message name and crc by ID.
-func (c *Connection) LookupByID(msgID uint16) (api.Message, error) {
+func (c *Connection) LookupByID(path string, msgID uint16) (api.Message, error) {
if c == nil {
return nil, errors.New("nil connection passed in")
}
-
- if msg, ok := c.msgMap[msgID]; ok {
+ if msg, ok := c.msgMapByPath[path][msgID]; ok {
return msg, nil
}
+ return nil, fmt.Errorf("unknown message ID %d for path '%s'", msgID, path)
+}
- return nil, fmt.Errorf("unknown message ID: %d", msgID)
+// GetMessagePath returns path for the given message
+func (c *Connection) GetMessagePath(msg api.Message) string {
+ return path.Dir(reflect.TypeOf(msg).Elem().PkgPath())
}
// retrieveMessageIDs retrieves IDs for all registered messages and stores them in map
func (c *Connection) retrieveMessageIDs() (err error) {
t := time.Now()
- msgs := api.GetRegisteredMessages()
+ msgsByPath := api.GetRegisteredMessages()
var n int
- for name, msg := range msgs {
- typ := reflect.TypeOf(msg).Elem()
- path := fmt.Sprintf("%s.%s", typ.PkgPath(), typ.Name())
+ for pkgPath, msgs := range msgsByPath {
+ for _, msg := range msgs {
+ msgID, err := c.GetMessageID(msg)
+ if err != nil {
+ if debugMsgIDs {
+ log.Debugf("retrieving message ID for %s.%s failed: %v",
+ pkgPath, msg.GetMessageName(), err)
+ }
+ continue
+ }
+ n++
+
+ if c.pingReqID == 0 && msg.GetMessageName() == c.msgControlPing.GetMessageName() {
+ c.pingReqID = msgID
+ c.msgControlPing = reflect.New(reflect.TypeOf(msg).Elem()).Interface().(api.Message)
+ } else if c.pingReplyID == 0 && msg.GetMessageName() == c.msgControlPingReply.GetMessageName() {
+ c.pingReplyID = msgID
+ c.msgControlPingReply = reflect.New(reflect.TypeOf(msg).Elem()).Interface().(api.Message)
+ }
- msgID, err := c.GetMessageID(msg)
- if err != nil {
if debugMsgIDs {
- log.Debugf("retrieving message ID for %s failed: %v", path, err)
+ log.Debugf("message %q (%s) has ID: %d", msg.GetMessageName(), getMsgNameWithCrc(msg), msgID)
}
- continue
- }
- n++
-
- if c.pingReqID == 0 && msg.GetMessageName() == c.msgControlPing.GetMessageName() {
- c.pingReqID = msgID
- c.msgControlPing = reflect.New(reflect.TypeOf(msg).Elem()).Interface().(api.Message)
- } else if c.pingReplyID == 0 && msg.GetMessageName() == c.msgControlPingReply.GetMessageName() {
- c.pingReplyID = msgID
- c.msgControlPingReply = reflect.New(reflect.TypeOf(msg).Elem()).Interface().(api.Message)
- }
-
- if debugMsgIDs {
- log.Debugf("message %q (%s) has ID: %d", name, getMsgNameWithCrc(msg), msgID)
}
+ log.WithField("took", time.Since(t)).
+ Debugf("retrieved IDs for %d messages (registered %d) from path %s", n, len(msgs), pkgPath)
}
- log.WithField("took", time.Since(t)).
- Debugf("retrieved IDs for %d messages (registered %d)", n, len(msgs))
return nil
}
log.Warn("Connection state channel is full, discarding value.")
}
}
+
+// Trace gives access to the API trace interface
+func (c *Connection) Trace() api.Trace {
+ return c.apiTrace
+}
+
+// trace records api message
+func (c *Connection) trace(msg api.Message, chId uint16, t time.Time, isReceived bool) {
+ if atomic.LoadInt32(&c.apiTrace.isEnabled) == 0 {
+ return
+ }
+ entry := &api.Record{
+ Message: msg,
+ Timestamp: t,
+ IsReceived: isReceived,
+ ChannelID: chId,
+ }
+ c.apiTrace.mux.Lock()
+ c.apiTrace.list = append(c.apiTrace.list, entry)
+ c.apiTrace.mux.Unlock()
+}
Code Review / govpp.git / blobdiff