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derp: move write timeout to package constant.

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Signed-off-by: David Anderson <dave@natulte.net>
This commit is contained in:
David Anderson 2020-03-20 00:38:52 -07:00 committed by Dave Anderson
parent dbfc916273
commit 1e031001db
2 changed files with 6 additions and 8 deletions
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1
cmd/derper/derper.go
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@ -118,7 +118,6 @@ func main() {
letsEncrypt := tsweb.IsProd443(*addr)
s := derp.NewServer(key.Private(cfg.PrivateKey), log.Printf)
s.WriteTimeout = 2 * time.Second
expvar.Publish("derp", s.ExpVar())
// Create our own mux so we don't expose /debug/ stuff to the world.

13
derp/derp_server.go
View File

@ -31,7 +31,10 @@ import (
var debug, _ = strconv.ParseBool(os.Getenv("DERP_DEBUG_LOGS"))
const perClientSendQueueDepth = 32 // packets buffered for sending
const (
perClientSendQueueDepth = 32 // packets buffered for sending
writeTimeout = 2 * time.Second
)
// Server is a DERP server.
type Server struct {
@ -560,9 +563,7 @@ func (c *sclient) sendLoop(ctx context.Context) error {
}
func (c *sclient) sendKeepalive() error {
if c.s.WriteTimeout != 0 {
c.nc.SetWriteDeadline(time.Now().Add(c.s.WriteTimeout))
}
c.nc.SetWriteDeadline(time.Now().Add(writeTimeout))
if err := writeFrame(c.bw, frameKeepAlive, nil); err != nil {
return err
}
@ -583,9 +584,7 @@ func (c *sclient) sendPacket(srcKey key.Public, contents []byte) (err error) {
}
}()
if c.s.WriteTimeout != 0 {
c.nc.SetWriteDeadline(time.Now().Add(c.s.WriteTimeout))
}
c.nc.SetWriteDeadline(time.Now().Add(writeTimeout))
withKey := !srcKey.IsZero()
pktLen := len(contents)