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Commit 3f12d2a5 authored by Kirill Smelkov's avatar Kirill Smelkov
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go/neo/neonet: errgroup -> xsync.WorkGroup 

See kirr/go123@515a6d14
parent e5729209
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Inline Side-by-side
Showing with 87 additions and 67 deletions
go/neo/neonet/connection_test.go
View file @ 3f12d2a5
......@@ -29,10 +29,9 @@ import (
"testing"
"time"
"golang.org/x/sync/errgroup"
"lab.nexedi.com/kirr/go123/exc"
"lab.nexedi.com/kirr/go123/xerr"
"lab.nexedi.com/kirr/go123/xsync"
"lab.nexedi.com/kirr/neo/go/internal/packed"
......@@ -76,8 +75,12 @@ func xwait(w interface{ Wait() error }) {
exc.Raiseif(err)
}
func gox(wg interface{ Go(func() error) }, xf func()) {
wg.Go(exc.Funcx(xf))
func gox(wg interface { Go(func(context.Context) error) }, xf func(context.Context)) {
wg.Go(func(ctx context.Context) error {
return exc.Funcx(func() {
xf(ctx)
})()
})
}
// xlinkError verifies that err is *LinkError and returns err.Err .
......@@ -171,11 +174,12 @@ func nodeLinkPipe() (nl1, nl2 *NodeLink) {
func TestNodeLink(t *testing.T) {
// TODO catch exception -> add proper location from it -> t.Fatal (see git-backup)
bg := context.Background()
// Close vs recvPkt
nl1, nl2 := _nodeLinkPipe(linkNoRecvSend, linkNoRecvSend)
wg := &errgroup.Group{}
gox(wg, func() {
wg := xsync.NewWorkGroup(bg)
gox(wg, func(_ context.Context) {
tdelay()
xclose(nl1)
})
......@@ -188,8 +192,8 @@ func TestNodeLink(t *testing.T) {
// Close vs sendPkt
nl1, nl2 = _nodeLinkPipe(linkNoRecvSend, linkNoRecvSend)
wg = &errgroup.Group{}
gox(wg, func() {
wg = xsync.NewWorkGroup(bg)
gox(wg, func(_ context.Context) {
tdelay()
xclose(nl1)
})
......@@ -203,8 +207,8 @@ func TestNodeLink(t *testing.T) {
// {Close,CloseAccept} vs Accept
nl1, nl2 = _nodeLinkPipe(linkNoRecvSend, linkNoRecvSend)
wg = &errgroup.Group{}
gox(wg, func() {
wg = xsync.NewWorkGroup(bg)
gox(wg, func(_ context.Context) {
tdelay()
xclose(nl2)
})
......@@ -212,7 +216,7 @@ func TestNodeLink(t *testing.T) {
if !(c == nil && xlinkError(err) == ErrLinkClosed) {
t.Fatalf("NodeLink.Accept() after close: conn = %v, err = %v", c, err)
}
gox(wg, func() {
gox(wg, func(_ context.Context) {
tdelay()
nl1.CloseAccept()
})
......@@ -231,8 +235,8 @@ func TestNodeLink(t *testing.T) {
// Close vs recvPkt on another side
nl1, nl2 = _nodeLinkPipe(linkNoRecvSend, linkNoRecvSend)
wg = &errgroup.Group{}
gox(wg, func() {
wg = xsync.NewWorkGroup(bg)
gox(wg, func(_ context.Context) {
tdelay()
xclose(nl2)
})
......@@ -245,8 +249,8 @@ func TestNodeLink(t *testing.T) {
// Close vs sendPkt on another side
nl1, nl2 = _nodeLinkPipe(linkNoRecvSend, linkNoRecvSend)
wg = &errgroup.Group{}
gox(wg, func() {
wg = xsync.NewWorkGroup(bg)
gox(wg, func(_ context.Context) {
tdelay()
xclose(nl2)
})
......@@ -261,40 +265,54 @@ func TestNodeLink(t *testing.T) {
// raw exchange
nl1, nl2 = _nodeLinkPipe(linkNoRecvSend, linkNoRecvSend)
wg, ctx := errgroup.WithContext(context.Background())
gox(wg, func() {
wg = xsync.NewWorkGroup(bg)
okch := make(chan int, 2)
gox(wg, func(_ context.Context) {
// send ping; wait for pong
pkt := _mkpkt(1, 2, []byte("ping"))
xsendPkt(nl1, pkt)
pkt = xrecvPkt(nl1)
xverifyPkt(pkt, 3, 4, []byte("pong"))
okch <- 1
})
gox(wg, func() {
gox(wg, func(_ context.Context) {
// wait for ping; send pong
pkt = xrecvPkt(nl2)
xverifyPkt(pkt, 1, 2, []byte("ping"))
pkt = _mkpkt(3, 4, []byte("pong"))
xsendPkt(nl2, pkt)
okch <- 2
})
// close nodelinks either when checks are done, or upon first error
wgclose := &errgroup.Group{}
gox(wgclose, func() {
<-ctx.Done()
gox(wg, func(ctx context.Context) {
nok := 0
loop:
for {
select {
case <-ctx.Done():
break loop
case <-okch:
nok++
if nok == 2 {
break loop
}
}
}
xclose(nl1)
xclose(nl2)
})
xwait(wg)
xwait(wgclose)
// ---- connections on top of nodelink ----
// Close vs recvPkt
nl1, nl2 = _nodeLinkPipe(0, linkNoRecvSend)
c = xnewconn(nl1)
wg = &errgroup.Group{}
gox(wg, func() {
wg = xsync.NewWorkGroup(bg)
gox(wg, func(_ context.Context) {
tdelay()
xclose(c)
})
......@@ -309,8 +327,8 @@ func TestNodeLink(t *testing.T) {
// Close vs sendPkt
nl1, nl2 = _nodeLinkPipe(0, linkNoRecvSend)
c = xnewconn(nl1)
wg = &errgroup.Group{}
gox(wg, func() {
wg = xsync.NewWorkGroup(bg)
gox(wg, func(_ context.Context) {
tdelay()
xclose(c)
})
......@@ -324,14 +342,14 @@ func TestNodeLink(t *testing.T) {
// NodeLink.Close vs Conn.sendPkt/recvPkt
c11 := xnewconn(nl1)
c12 := xnewconn(nl1)
wg = &errgroup.Group{}
gox(wg, func() {
wg = xsync.NewWorkGroup(bg)
gox(wg, func(_ context.Context) {
pkt, err := c11.recvPkt()
if !(pkt == nil && xconnError(err) == ErrLinkClosed) {
exc.Raisef("Conn.recvPkt() after NodeLink close: pkt = %v err = %v", pkt, err)
}
})
gox(wg, func() {
gox(wg, func(_ context.Context) {
pkt := c12.mkpkt(0, []byte("data"))
err := c12.sendPkt(pkt)
if xconnError(err) != ErrLinkClosed {
......@@ -350,9 +368,9 @@ func TestNodeLink(t *testing.T) {
c21 := xnewconn(nl2)
c22 := xnewconn(nl2)
c23 := xnewconn(nl2)
wg = &errgroup.Group{}
wg = xsync.NewWorkGroup(bg)
var errRecv error
gox(wg, func() {
gox(wg, func(_ context.Context) {
pkt, err := c21.recvPkt()
want1 := io.EOF // if recvPkt wakes up due to peer close
want2 := io.ErrClosedPipe // if recvPkt wakes up due to sendPkt wakes up first and closes nl1
......@@ -363,7 +381,7 @@ func TestNodeLink(t *testing.T) {
errRecv = cerr
})
gox(wg, func() {
gox(wg, func(_ context.Context) {
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
......@@ -372,7 +390,7 @@ func TestNodeLink(t *testing.T) {
}
})
gox(wg, func() {
gox(wg, func(_ context.Context) {
conn, err := nl2.Accept()
if !(conn == nil && xlinkError(err) == ErrLinkDown) {
exc.Raisef("Accept after peer NodeLink shutdown: conn = %v err = %v", conn, err)
......@@ -466,9 +484,9 @@ func TestNodeLink(t *testing.T) {
// Conn accept + exchange
nl1, nl2 = nodeLinkPipe()
nl1.CloseAccept()
wg = &errgroup.Group{}
wg = xsync.NewWorkGroup(bg)
closed := make(chan int)
gox(wg, func() {
gox(wg, func(_ context.Context) {
c := xaccept(nl2)
pkt := xrecvPkt(c)
......@@ -560,7 +578,7 @@ func TestNodeLink(t *testing.T) {
// test 2 channels with replies coming in reversed time order
nl1, nl2 = nodeLinkPipe()
wg = &errgroup.Group{}
wg = xsync.NewWorkGroup(bg)
replyOrder := map[uint16]struct { // "order" in which to process requests
start chan struct{} // processing starts when start chan is ready
next uint16 // after processing this switch to next
......@@ -570,11 +588,11 @@ func TestNodeLink(t *testing.T) {
}
close(replyOrder[2].start)
gox(wg, func() {
gox(wg, func(_ context.Context) {
for _ = range replyOrder {
c := xaccept(nl2)
gox(wg, func() {
gox(wg, func(_ context.Context) {
pkt := xrecvPkt(c)
n := packed.Ntoh16(pkt.Header().MsgCode)
x := replyOrder[n]
......@@ -645,11 +663,13 @@ func xverifyMsg(msg1, msg2 proto.Msg) {
}
func TestRecv1Mode(t *testing.T) {
bg := context.Background()
// Send1
nl1, nl2 := nodeLinkPipe()
wg := &errgroup.Group{}
wg := xsync.NewWorkGroup(bg)
sync := make(chan int)
gox(wg, func() {
gox(wg, func(_ context.Context) {
defer func() {
if e := recover(); e != nil {
panic(e)
......@@ -685,8 +705,8 @@ func TestRecv1Mode(t *testing.T) {
xwait(wg)
// Recv1: further packets with same connid are rejected with "connection closed"
wg = &errgroup.Group{}
gox(wg, func() {
wg = xsync.NewWorkGroup(bg)
gox(wg, func(_ context.Context) {
c := xnewconn(nl2)
xSend(c, &proto.Ping{})
......@@ -711,11 +731,11 @@ func TestRecv1Mode(t *testing.T) {
// bug triggers under -race.
func TestLightCloseVsLinkShutdown(t *testing.T) {
nl1, nl2 := nodeLinkPipe()
wg := &errgroup.Group{}
wg := xsync.NewWorkGroup(context.Background())
c := xnewconn(nl1)
nl1.shutdown()
gox(wg, func() {
gox(wg, func(_ context.Context) {
c.lightClose()
})
......@@ -1062,14 +1082,14 @@ func benchmarkLinkRTT(b *testing.B, l1, l2 *NodeLink) {
func xlinkPipe(c1, c2 net.Conn) (*NodeLink, *NodeLink) {
var l1, l2 *NodeLink
wg := &errgroup.Group{}
gox(wg, func() {
l, err := _Handshake(context.Background(), c1, _LinkClient)
wg := xsync.NewWorkGroup(context.Background())
gox(wg, func(ctx context.Context) {
l, err := _Handshake(ctx, c1, _LinkClient)
exc.Raiseif(err)
l1 = l
})
gox(wg, func() {
l, err := _Handshake(context.Background(), c2, _LinkServer)
gox(wg, func(ctx context.Context) {
l, err := _Handshake(ctx, c2, _LinkServer)
exc.Raiseif(err)
l2 = l
})
......
go/neo/neonet/newlink_test.go
View file @ 3f12d2a5
// Copyright (C) 2016-2018 Nexedi SA and Contributors.
// Copyright (C) 2016-2020 Nexedi SA and Contributors.
// Kirill Smelkov <kirr@nexedi.com>
//
// This program is free software: you can Use, Study, Modify and Redistribute
......@@ -25,9 +25,8 @@ import (
"net"
"testing"
"golang.org/x/sync/errgroup"
"lab.nexedi.com/kirr/go123/exc"
"lab.nexedi.com/kirr/go123/xsync"
)
func xhandshake(ctx context.Context, c net.Conn, version uint32) {
......@@ -39,12 +38,12 @@ func TestHandshake(t *testing.T) {
bg := context.Background()
// handshake ok
p1, p2 := net.Pipe()
wg := &errgroup.Group{}
gox(wg, func() {
xhandshake(bg, p1, 1)
wg := xsync.NewWorkGroup(bg)
gox(wg, func(ctx context.Context) {
xhandshake(ctx, p1, 1)
})
gox(wg, func() {
xhandshake(bg, p2, 1)
gox(wg, func(ctx context.Context) {
xhandshake(ctx, p2, 1)
})
xwait(wg)
xclose(p1)
......@@ -53,12 +52,12 @@ func TestHandshake(t *testing.T) {
// version mismatch
p1, p2 = net.Pipe()
var err1, err2 error
wg = &errgroup.Group{}
gox(wg, func() {
err1 = handshake(bg, p1, 1)
wg = xsync.NewWorkGroup(bg)
gox(wg, func(ctx context.Context) {
err1 = handshake(ctx, p1, 1)
})
gox(wg, func() {
err2 = handshake(bg, p2, 2)
gox(wg, func(ctx context.Context) {
err2 = handshake(ctx, p2, 2)
})
xwait(wg)
xclose(p1)
......@@ -77,11 +76,11 @@ func TestHandshake(t *testing.T) {
// tx & rx problem
p1, p2 = net.Pipe()
err1, err2 = nil, nil
wg = &errgroup.Group{}
gox(wg, func() {
err1 = handshake(bg, p1, 1)
wg = xsync.NewWorkGroup(bg)
gox(wg, func(ctx context.Context) {
err1 = handshake(ctx, p1, 1)
})
gox(wg, func() {
gox(wg, func(_ context.Context) {
xclose(p2)
})
xwait(wg)
......@@ -96,7 +95,8 @@ func TestHandshake(t *testing.T) {
// ctx cancel
p1, p2 = net.Pipe()
ctx, cancel := context.WithCancel(bg)
gox(wg, func() {
wg = xsync.NewWorkGroup(ctx)
gox(wg, func(ctx context.Context) {
err1 = handshake(ctx, p1, 1)
})
tdelay()
......
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