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Commit 4ed82496 authored by Kirill Smelkov's avatar Kirill Smelkov
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parent da2025b4
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Showing with 220 additions and 152 deletions
go/neo/connection.go
View file @ 4ed82496
......@@ -98,7 +98,7 @@ type Conn struct {
rxdownFlag atomic32 // 1 when RX is marked no longer operational
rxerrOnce sync.Once // rx error is reported only once - then it is link down or closed XXX !light?
errMsg *Error // error message for peer if rx is down XXX try to do without it
// errMsg *Error // error message for peer if rx is down XXX try to do without it
// there are two modes a Conn could be used:
// - full mode - where full Conn functionality is working, and
......@@ -237,7 +237,7 @@ func (c *Conn) reinit() {
c.rxdownFlag.Set(0) // ----//----
c.rxerrOnce = sync.Once{} // XXX ok?
c.errMsg = nil // XXX what here?
// c.errMsg = nil // XXX what here?
// XXX vvv not strictly needed for light mode?
......@@ -413,12 +413,13 @@ func (c *Conn) shutdownRX(errMsg *Error) {
// downRX marks .rxq as no longer operational.
func (c *Conn) downRX(errMsg *Error) {
c.errMsg = errMsg
// c.errMsg = errMsg
c.rxdownFlag.Set(1) // XXX cmpxchg and return if already down?
// dequeue all packets already queued in c.rxq
// (once serveRecv sees c.rxdown it won't try to put new packets into
// (once serveRecv sees c.rxdownFlag it won't try to put new packets into
// c.rxq, but something finite could be already there)
// XXX also describe race we avoid with rxdownFlag / rxqActive dance
i := 0
loop:
for {
......@@ -435,7 +436,7 @@ loop:
// if something was queued already there - reply "connection closed"
if i != 0 {
go c.replyNoConn()
go c.link.replyNoConn(c.connId, errMsg)
}
}
......@@ -635,28 +636,24 @@ func (nl *NodeLink) serveRecv() {
// resetting it waits for us to finish.
conn := nl.connTab[connId]
tmpclosed := false
if conn == nil {
// "new" connection will be needed in all cases - e.g.
// even temporarily to reply "connection refused"
conn = nl.newConn(connId)
// message with connid that should be initiated by us
if connId % 2 == nl.nextConnId % 2 {
tmpclosed = true
delete(nl.connTab, conn.connId)
// message with connid for a stream initiated by peer
// it will be considered to be accepted (not if .axdown)
} else {
if connId % 2 != nl.nextConnId % 2 {
accept = true
conn = nl.newConn(connId)
}
// else it is message with connid that should be initiated by us
// leave conn=nil - we'll reply errConnClosed
}
nl.connMu.Unlock()
if tmpclosed {
conn.shutdownRX(errConnClosed)
if conn == nil {
// see ^^^ "message with connid that should be initiated by us"
go nl.replyNoConn(connId, errConnClosed)
continue
}
// route packet to serving goroutine handler
......@@ -674,49 +671,14 @@ func (nl *NodeLink) serveRecv() {
}
conn.rxqActive.Set(0)
/*
// XXX goes away in favour of .rxdownFlag; reasons
// - no need to reallocate rxdown for light conn
// - no select
// don't even try `conn.rxq <- ...` if conn.rxdown is ready
// ( else since select is picking random ready variant Recv/serveRecv
// could receive something on rxdown Conn sometimes )
rxdown := false
select {
case <-conn.rxdown:
rxdown = true
default:
// ok
}
// route packet to serving goroutine handler
//
// TODO backpressure when Recv is not keeping up with Send on peer side?
// (not to let whole link starve because of one connection)
//
// NOTE rxq must be buffered with at least 1 element so that
// queuing pkt succeeds for incoming connection that is not yet
// there in acceptq.
if !rxdown {
// XXX can avoid select here: if conn closer cares to drain rxq (?)
select {
case <-conn.rxdown:
rxdown = true
case conn.rxq <- pkt:
// ok
}
}
*/
// we are not accepting packet in any way
// conn exists but rx is down - "connection closed"
// (this cannot happen for newly accepted connection)
if rxdown {
go conn.replyNoConn()
go nl.replyNoConn(connId, errConnClosed)
continue
}
// this packet established new connection - try to accept it
if accept {
// don't even try `link.acceptq <- ...` if link.axdown is ready
......@@ -751,6 +713,41 @@ func (nl *NodeLink) serveRecv() {
nl.connMu.Unlock()
}
}
/*
// XXX goes away in favour of .rxdownFlag; reasons
// - no need to reallocate rxdown for light conn
// - no select
// don't even try `conn.rxq <- ...` if conn.rxdown is ready
// ( else since select is picking random ready variant Recv/serveRecv
// could receive something on rxdown Conn sometimes )
rxdown := false
select {
case <-conn.rxdown:
rxdown = true
default:
// ok
}
// route packet to serving goroutine handler
//
// TODO backpressure when Recv is not keeping up with Send on peer side?
// (not to let whole link starve because of one connection)
//
// NOTE rxq must be buffered with at least 1 element so that
// queuing pkt succeeds for incoming connection that is not yet
// there in acceptq.
if !rxdown {
// XXX can avoid select here: if conn closer cares to drain rxq (?)
select {
case <-conn.rxdown:
rxdown = true
case conn.rxq <- pkt:
// ok
}
}
*/
}
}
......@@ -760,10 +757,10 @@ var errConnClosed = &Error{PROTOCOL_ERROR, "connection closed"}
var errConnRefused = &Error{PROTOCOL_ERROR, "connection refused"}
// replyNoConn sends error message to peer when a packet was sent to closed / nonexistent connection
func (c *Conn) replyNoConn() {
//fmt.Printf("%v: -> replyNoConn %v\n", c, c.errMsg)
c.Send(c.errMsg) // ignore errors
//fmt.Printf("%v: replyNoConn(%v) -> %v\n", c, c.errMsg, err)
func (link *NodeLink) replyNoConn(connId uint32, errMsg Msg) {
//fmt.Printf("%s .%d: -> replyNoConn %v\n", link, connId, c.errMsg)
link.sendMsg(connId, errMsg) // ignore errors
//fmt.Printf("%s .%d: replyNoConn(%v) -> %v\n", link, connId, c.errMsg, err)
}
// ---- transmit ----
......@@ -800,34 +797,12 @@ func (c *Conn) sendPkt(pkt *PktBuf) error {
return c.err("send", err)
}
// XXX serveSend is not needed - Conn.Write already can be used by multiple
// goroutines simultaneously and works atomically; (same for Conn.Read etc - see pool.FD)
// https://github.com/golang/go/blob/go1.9-3-g099336988b/src/net/net.go#L109
// https://github.com/golang/go/blob/go1.9-3-g099336988b/src/internal/poll/fd_unix.go#L14
/*
func (c *Conn) sendPkt2(pkt *PktBuf) error {
// set pkt connId associated with this connection
pkt.Header().ConnId = hton32(c.connId)
// XXX if n.peerLink was just closed by rx->shutdown we'll get ErrNetClosing
err := c.link.sendPkt(pkt)
//fmt.Printf("sendPkt -> %v\n", err)
// on IO error framing over peerLink becomes broken
// so we shut down node link and all connections over it.
if err != nil {
c.link.shutdown()
// connId must be set to one associated with this connection
if pkt.Header().ConnId != hton32(c.connId) {
panic("Conn.sendPkt: connId wrong")
}
return err
}
*/
///*
func (c *Conn) sendPkt2(pkt *PktBuf) error {
// set pkt connId associated with this connection
pkt.Header().ConnId = hton32(c.connId)
var err error
select {
......@@ -885,6 +860,9 @@ func (nl *NodeLink) serveSend() {
// on IO error framing over peerLink becomes broken
// so we shut down node link and all connections over it.
//
// XXX dup wrt sendPktDirect
// XXX move to link.sendPkt?
if err != nil {
nl.shutdown()
return
......@@ -892,7 +870,37 @@ func (nl *NodeLink) serveSend() {
}
}
}
//*/
// ---- transmit direct mode ----
// serveSend is not strictly needed - net.Conn.Write already can be used by multiple
// goroutines simultaneously and works atomically; (same for Conn.Read etc - see pool.FD)
// https://github.com/golang/go/blob/go1.9-3-g099336988b/src/net/net.go#L109
// https://github.com/golang/go/blob/go1.9-3-g099336988b/src/internal/poll/fd_unix.go#L14
//
// thus the only reason we use serveSend is so that Conn.Close can "interrupt" Conn.Send via .txdown .
// however this adds overhead and is not needed in light mode.
// sendPktDirect sends raw packet with appropriate connection ID directly via link.
func (c *Conn) sendPktDirect(pkt *PktBuf) error {
// set pkt connId associated with this connection
pkt.Header().ConnId = hton32(c.connId)
// XXX if n.peerLink was just closed by rx->shutdown we'll get ErrNetClosing
err := c.link.sendPkt(pkt)
//fmt.Printf("sendPkt -> %v\n", err)
// on IO error framing over peerLink becomes broken
// so we shut down node link and all connections over it.
//
// XXX dup wrt serveSend
// XXX move to link.sendPkt?
if err != nil {
c.link.shutdown()
}
return err
}
// ---- raw IO ----
......@@ -1300,10 +1308,26 @@ func (c *Conn) err(op string, e error) error {
// ---- exchange of messages ----
//trace:event traceConnRecv(c *Conn, msg Msg)
//trace:event traceConnSendPre(c *Conn, msg Msg)
//trace:event traceMsgRecv(c *Conn, msg Msg)
//trace:event traceMsgSendPre(l *NodeLink, connId uint32, msg Msg)
// XXX do we also need traceConnSend?
// msgPack allocates PktBuf and encodes msg into it.
func msgPack(connId uint32, msg Msg) *PktBuf {
l := msg.neoMsgEncodedLen()
buf := pktAlloc(pktHeaderLen+l)
h := buf.Header()
h.ConnId = hton32(connId)
h.MsgCode = hton16(msg.neoMsgCode())
h.MsgLen = hton32(uint32(l)) // XXX casting: think again
msg.neoMsgEncode(buf.Payload())
return buf
}
// TODO msgUnpack
// Recv receives message
// it receives packet and decodes message from it
func (c *Conn) Recv() (Msg, error) {
......@@ -1333,28 +1357,28 @@ func (c *Conn) Recv() (Msg, error) {
return nil, c.err("decode", err) // XXX "decode:" is already in ErrDecodeOverflow
}
traceConnRecv(c, msg)
traceMsgRecv(c, msg)
return msg, nil
}
// Send sends message.
// sendMsg sends message with specified connection ID.
//
// it encodes message into packet and sends it
func (c *Conn) Send(msg Msg) error {
traceConnSendPre(c, msg)
l := msg.neoMsgEncodedLen()
buf := pktAlloc(pktHeaderLen+l)
// it encodes message int packet, sets header appropriately and sends it.
func (link *NodeLink) sendMsg(connId uint32, msg Msg) error {
traceMsgSendPre(link, connId, msg)
h := buf.Header()
// h.ConnId will be set by conn.sendPkt
h.MsgCode = hton16(msg.neoMsgCode())
h.MsgLen = hton32(uint32(l)) // XXX casting: think again
buf := msgPack(connId, msg)
return link.sendPkt(buf) // XXX more context in err? (msg type)
}
msg.neoMsgEncode(buf.Payload())
// Send sends message.
//
// it encodes message into packet and sends it.
func (c *Conn) Send(msg Msg) error {
traceMsgSendPre(c.link, c.connId, msg)
// XXX more context in err? (msg type)
return c.sendPkt(buf)
buf := msgPack(c.connId, msg)
return c.sendPkt(buf) // XXX more context in err? (msg type)
}
......
go/neo/connection_test.go
View file @ 4ed82496
......@@ -37,6 +37,8 @@ import (
"github.com/kylelemons/godebug/pretty"
"github.com/pkg/errors"
//"runtime/debug"
)
func xclose(c io.Closer) {
......@@ -106,9 +108,9 @@ func _mkpkt(connid uint32, msgcode uint16, payload []byte) *PktBuf {
return pkt
}
func mkpkt(msgcode uint16, payload []byte) *PktBuf {
func (c *Conn) mkpkt(msgcode uint16, payload []byte) *PktBuf {
// in Conn exchange connid is automatically set by Conn.sendPkt
return _mkpkt(0, msgcode, payload)
return _mkpkt(c.connId, msgcode, payload)
}
// Verify PktBuf is as expected
......@@ -321,7 +323,7 @@ func TestNodeLink(t *testing.T) {
tdelay()
xclose(c)
})
pkt = &PktBuf{[]byte("data")}
pkt = c.mkpkt(0, []byte("data"))
err = c.sendPkt(pkt)
if xconnError(err) != ErrClosedConn {
t.Fatalf("Conn.sendPkt() after close: err = %v", err)
......@@ -341,7 +343,7 @@ func TestNodeLink(t *testing.T) {
}
})
wg.Gox(func() {
pkt := &PktBuf{[]byte("data")}
pkt := c12.mkpkt(0, []byte("data"))
err := c12.sendPkt(pkt)
if xconnError(err) != ErrLinkClosed {
exc.Raisef("Conn.sendPkt() after NodeLink close: err = %v", err)
......@@ -375,7 +377,7 @@ func TestNodeLink(t *testing.T) {
errRecv = cerr
})
wg.Gox(func() {
pkt := &PktBuf{[]byte("data")}
pkt := c22.mkpkt(0, []byte("data"))
err := c22.sendPkt(pkt)
want := io.ErrClosedPipe // always this in both due to peer close or recvPkt waking up and closing nl2
if xconnError(err) != want {
......@@ -413,7 +415,7 @@ func TestNodeLink(t *testing.T) {
if !(pkt == nil && xconnError(err) == errRecv) {
t.Fatalf("Conn.recvPkt 2 after peer NodeLink shutdown: pkt = %v err = %v", pkt, err)
}
err = c23.sendPkt(&PktBuf{[]byte("data")})
err = c23.sendPkt(c23.mkpkt(0, []byte("data")))
if xconnError(err) != ErrLinkDown {
t.Fatalf("Conn.sendPkt 2 after peer NodeLink shutdown: %v", err)
}
......@@ -423,7 +425,7 @@ func TestNodeLink(t *testing.T) {
if !(pkt == nil && xconnError(err) == ErrLinkDown) {
t.Fatalf("Conn.recvPkt after NodeLink shutdown: pkt = %v err = %v", pkt, err)
}
err = c22.sendPkt(&PktBuf{[]byte("data")})
err = c22.sendPkt(c22.mkpkt(0, []byte("data")))
if xconnError(err) != ErrLinkDown {
t.Fatalf("Conn.sendPkt after NodeLink shutdown: %v", err)
}
......@@ -434,7 +436,7 @@ func TestNodeLink(t *testing.T) {
if !(pkt == nil && xconnError(err) == ErrClosedConn) {
t.Fatalf("Conn.recvPkt after close but only stopped NodeLink: pkt = %v err = %v", pkt, err)
}
err = c23.sendPkt(&PktBuf{[]byte("data")})
err = c23.sendPkt(c23.mkpkt(0, []byte("data")))
if xconnError(err) != ErrClosedConn {
t.Fatalf("Conn.sendPkt after close but only stopped NodeLink: %v", err)
}
......@@ -445,7 +447,7 @@ func TestNodeLink(t *testing.T) {
if !(pkt == nil && xconnError(err) == ErrLinkClosed) {
t.Fatalf("Conn.recvPkt after NodeLink shutdown: pkt = %v err = %v", pkt, err)
}
err = c22.sendPkt(&PktBuf{[]byte("data")})
err = c22.sendPkt(c22.mkpkt(0, []byte("data")))
if xconnError(err) != ErrLinkClosed {
t.Fatalf("Conn.sendPkt after NodeLink shutdown: %v", err)
}
......@@ -468,7 +470,7 @@ func TestNodeLink(t *testing.T) {
if !(pkt == nil && xconnError(err) == ErrClosedConn) {
t.Fatalf("Conn.recvPkt after close and NodeLink close: pkt = %v err = %v", pkt, err)
}
err = c22.sendPkt(&PktBuf{[]byte("data")})
err = c22.sendPkt(c22.mkpkt(0, []byte("data")))
if xconnError(err) != ErrClosedConn {
t.Fatalf("Conn.sendPkt after close and NodeLink close: %v", err)
}
......@@ -492,12 +494,12 @@ func TestNodeLink(t *testing.T) {
xverifyPkt(pkt, c.connId, 33, []byte("ping"))
// change pkt a bit and send it back
xsendPkt(c, mkpkt(34, []byte("pong")))
xsendPkt(c, c.mkpkt(34, []byte("pong")))
// one more time
pkt = xrecvPkt(c)
xverifyPkt(pkt, c.connId, 35, []byte("ping2"))
xsendPkt(c, mkpkt(36, []byte("pong2")))
xsendPkt(c, c.mkpkt(36, []byte("pong2")))
xclose(c)
closed <- 1
......@@ -509,7 +511,7 @@ func TestNodeLink(t *testing.T) {
pkt = xrecvPkt(c2)
//println("X ααα + 2")
xverifyPkt(pkt, c2.connId, 41, []byte("ping5"))
xsendPkt(c2, mkpkt(42, []byte("pong5")))
xsendPkt(c2, c2.mkpkt(42, []byte("pong5")))
//println("X βββ")
c2.CloseRecv()
......@@ -519,12 +521,12 @@ func TestNodeLink(t *testing.T) {
// "connection refused" when trying to connect to not-listening peer
c = xnewconn(nl2) // XXX should get error here?
xsendPkt(c, mkpkt(38, []byte("pong3")))
xsendPkt(c, c.mkpkt(38, []byte("pong3")))
//println("X γγγ + 1")
pkt = xrecvPkt(c)
//println("X γγγ + 2")
xverifyPktMsg(pkt, c.connId, errConnRefused)
xsendPkt(c, mkpkt(40, []byte("pong4"))) // once again
xsendPkt(c, c.mkpkt(40, []byte("pong4"))) // once again
//println("X γγγ + 3")
pkt = xrecvPkt(c)
//println("X γγγ + 4")
......@@ -539,10 +541,10 @@ func TestNodeLink(t *testing.T) {
//println("aaa")
c1 := xnewconn(nl1)
xsendPkt(c1, mkpkt(33, []byte("ping")))
xsendPkt(c1, c1.mkpkt(33, []byte("ping")))
pkt = xrecvPkt(c1)
xverifyPkt(pkt, c1.connId, 34, []byte("pong"))
xsendPkt(c1, mkpkt(35, []byte("ping2")))
xsendPkt(c1, c1.mkpkt(35, []byte("ping2")))
pkt = xrecvPkt(c1)
xverifyPkt(pkt, c1.connId, 36, []byte("pong2"))
......@@ -550,12 +552,12 @@ func TestNodeLink(t *testing.T) {
// "connection closed" after peer closed its end
<-closed
//println("111 + closed")
xsendPkt(c1, mkpkt(37, []byte("ping3")))
xsendPkt(c1, c1.mkpkt(37, []byte("ping3")))
//println("111 + 1")
pkt = xrecvPkt(c1)
//println("111 + 2")
xverifyPktMsg(pkt, c1.connId, errConnClosed)
xsendPkt(c1, mkpkt(39, []byte("ping4"))) // once again
xsendPkt(c1, c1.mkpkt(39, []byte("ping4"))) // once again
pkt = xrecvPkt(c1)
//println("111 + 4")
xverifyPktMsg(pkt, c1.connId, errConnClosed)
......@@ -564,11 +566,11 @@ func TestNodeLink(t *testing.T) {
//println("222")
// one more time but now peer does only .CloseRecv()
c2 := xnewconn(nl1)
xsendPkt(c2, mkpkt(41, []byte("ping5")))
xsendPkt(c2, c2.mkpkt(41, []byte("ping5")))
pkt = xrecvPkt(c2)
xverifyPkt(pkt, c2.connId, 42, []byte("pong5"))
<-closed
xsendPkt(c2, mkpkt(41, []byte("ping6")))
xsendPkt(c2, c2.mkpkt(41, []byte("ping6")))
pkt = xrecvPkt(c2)
xverifyPktMsg(pkt, c2.connId, errConnClosed)
......@@ -638,8 +640,8 @@ func TestNodeLink(t *testing.T) {
c1 = xnewconn(nl1)
c2 = xnewconn(nl1)
xsendPkt(c1, mkpkt(1, []byte("")))
xsendPkt(c2, mkpkt(2, []byte("")))
xsendPkt(c1, c1.mkpkt(1, []byte("")))
xsendPkt(c2, c2.mkpkt(2, []byte("")))
// replies must be coming in reverse order
xechoWait := func(c *Conn, msgCode uint16) {
......@@ -754,16 +756,56 @@ func xRecv1(l *NodeLink) Request {
return req
}
func xSend1(l *NodeLink, msg Msg) {
err := l.Send1(msg)
exc.Raiseif(err)
}
func xverifyMsg(msg1, msg2 Msg) {
if !reflect.DeepEqual(msg1, msg2) {
//debug.PrintStack()
exc.Raisef("messages differ:\n%s", pretty.Compare(msg1, msg2))
}
}
func TestRecv1Mode(t *testing.T) {
// Recv1: further packets with same connid are rejected with "connection closed"
println("000")
// Send1
nl1, nl2 := nodeLinkPipe()
wg := &xsync.WorkGroup{}
wg.Gox(func() {
c := xaccept(nl2)
msg := xRecv(c)
xverifyMsg(msg, &Ping{})
xSend(c, &Pong{})
msg = xRecv(c)
xverifyMsg(msg, errConnClosed)
xclose(c)
println("X zzz")
c = xaccept(nl2)
msg = xRecv(c)
println("X zzz + 1")
xverifyMsg(msg, &Error{ACK, "hello up there"})
xSend(c, &Error{ACK, "hello to you too"})
msg = xRecv(c)
println("X zzz + 2")
xverifyMsg(msg, errConnClosed)
println("X zzz + 3")
})
println("aaa")
xSend1(nl1, &Ping{})
println("bbb")
xSend1(nl1, &Error{ACK, "hello up there"})
println("ccc")
xwait(wg)
println("111")
// Recv1: further packets with same connid are rejected with "connection closed"
wg = &xsync.WorkGroup{}
wg.Gox(func() {
c := xnewconn(nl2)
......@@ -775,6 +817,8 @@ func TestRecv1Mode(t *testing.T) {
_ = xRecv1(nl1)
xwait(wg)
// TODO link.Close vs Recv1
}
// ---- benchmarks ----
......
go/neo/ztrace.go
View file @ 4ed82496
......@@ -35,57 +35,57 @@ func traceClusterStateChanged_Attach(pg *tracing.ProbeGroup, probe func(cs *Clus
return &p.Probe
}
// traceevent: traceConnRecv(c *Conn, msg Msg)
// traceevent: traceMsgRecv(c *Conn, msg Msg)
type _t_traceConnRecv struct {
type _t_traceMsgRecv struct {
tracing.Probe
probefunc func(c *Conn, msg Msg)
}
var _traceConnRecv *_t_traceConnRecv
var _traceMsgRecv *_t_traceMsgRecv
func traceConnRecv(c *Conn, msg Msg) {
if _traceConnRecv != nil {
_traceConnRecv_run(c, msg)
func traceMsgRecv(c *Conn, msg Msg) {
if _traceMsgRecv != nil {
_traceMsgRecv_run(c, msg)
}
}
func _traceConnRecv_run(c *Conn, msg Msg) {
for p := _traceConnRecv; p != nil; p = (*_t_traceConnRecv)(unsafe.Pointer(p.Next())) {
func _traceMsgRecv_run(c *Conn, msg Msg) {
for p := _traceMsgRecv; p != nil; p = (*_t_traceMsgRecv)(unsafe.Pointer(p.Next())) {
p.probefunc(c, msg)
}
}
func traceConnRecv_Attach(pg *tracing.ProbeGroup, probe func(c *Conn, msg Msg)) *tracing.Probe {
p := _t_traceConnRecv{probefunc: probe}
tracing.AttachProbe(pg, (**tracing.Probe)(unsafe.Pointer(&_traceConnRecv)), &p.Probe)
func traceMsgRecv_Attach(pg *tracing.ProbeGroup, probe func(c *Conn, msg Msg)) *tracing.Probe {
p := _t_traceMsgRecv{probefunc: probe}
tracing.AttachProbe(pg, (**tracing.Probe)(unsafe.Pointer(&_traceMsgRecv)), &p.Probe)
return &p.Probe
}
// traceevent: traceConnSendPre(c *Conn, msg Msg)
// traceevent: traceMsgSendPre(l *NodeLink, connId uint32, msg Msg)
type _t_traceConnSendPre struct {
type _t_traceMsgSendPre struct {
tracing.Probe
probefunc func(c *Conn, msg Msg)
probefunc func(l *NodeLink, connId uint32, msg Msg)
}
var _traceConnSendPre *_t_traceConnSendPre
var _traceMsgSendPre *_t_traceMsgSendPre
func traceConnSendPre(c *Conn, msg Msg) {
if _traceConnSendPre != nil {
_traceConnSendPre_run(c, msg)
func traceMsgSendPre(l *NodeLink, connId uint32, msg Msg) {
if _traceMsgSendPre != nil {
_traceMsgSendPre_run(l, connId, msg)
}
}
func _traceConnSendPre_run(c *Conn, msg Msg) {
for p := _traceConnSendPre; p != nil; p = (*_t_traceConnSendPre)(unsafe.Pointer(p.Next())) {
p.probefunc(c, msg)
func _traceMsgSendPre_run(l *NodeLink, connId uint32, msg Msg) {
for p := _traceMsgSendPre; p != nil; p = (*_t_traceMsgSendPre)(unsafe.Pointer(p.Next())) {
p.probefunc(l, connId, msg)
}
}
func traceConnSendPre_Attach(pg *tracing.ProbeGroup, probe func(c *Conn, msg Msg)) *tracing.Probe {
p := _t_traceConnSendPre{probefunc: probe}
tracing.AttachProbe(pg, (**tracing.Probe)(unsafe.Pointer(&_traceConnSendPre)), &p.Probe)
func traceMsgSendPre_Attach(pg *tracing.ProbeGroup, probe func(l *NodeLink, connId uint32, msg Msg)) *tracing.Probe {
p := _t_traceMsgSendPre{probefunc: probe}
tracing.AttachProbe(pg, (**tracing.Probe)(unsafe.Pointer(&_traceMsgSendPre)), &p.Probe)
return &p.Probe
}
......@@ -117,4 +117,4 @@ func traceNodeChanged_Attach(pg *tracing.ProbeGroup, probe func(nt *NodeTable, n
}
// trace export signature
func _trace_exporthash_ab325b43be064a06d1c80db96d5bf50678b5b037() {}
func _trace_exporthash_933f43c04bbb1566c5d1e9ea518f9ed6e0f147a7() {}
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