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authorJianfeng Tan <henry.tjf@antfin.com>2019-08-29 16:23:11 +0000
committerJianfeng Tan <henry.tjf@antfin.com>2019-10-15 16:38:40 +0000
commitaee2c93366f451b9cc0a62430185749556fc3900 (patch)
tree22aae176d3fe1cdc2ebc568a5d1a6d63e837c9be /pkg/tcpip/transport/tcp/accept.go
parentdd7d1f825d2f6464b61287b3a324c13139b0d661 (diff)
netstack: add counters for tcp CurrEstab and EstabResets
Signed-off-by: Jianfeng Tan <henry.tjf@antfin.com>
Diffstat (limited to 'pkg/tcpip/transport/tcp/accept.go')
-rw-r--r--pkg/tcpip/transport/tcp/accept.go6
1 files changed, 5 insertions, 1 deletions
diff --git a/pkg/tcpip/transport/tcp/accept.go b/pkg/tcpip/transport/tcp/accept.go
index 844959fa0..2b4c5c2f9 100644
--- a/pkg/tcpip/transport/tcp/accept.go
+++ b/pkg/tcpip/transport/tcp/accept.go
@@ -297,7 +297,10 @@ func (l *listenContext) createEndpointAndPerformHandshake(s *segment, opts *head
return nil, err
}
ep.mu.Lock()
- ep.state = StateEstablished
+ if ep.state != StateEstablished {
+ ep.stack.Stats().TCP.CurrentEstablished.Increment()
+ ep.state = StateEstablished
+ }
ep.mu.Unlock()
// Update the receive window scaling. We can't do it before the
@@ -519,6 +522,7 @@ func (e *endpoint) handleListenSegment(ctx *listenContext, s *segment) {
n.tsOffset = 0
// Switch state to connected.
+ n.stack.Stats().TCP.CurrentEstablished.Increment()
n.state = StateEstablished
// Do the delivery in a separate goroutine so