whisper/whisperv5: revert stuff

This commit is contained in:
Felix Lange 2017-02-23 18:08:09 +01:00
parent ee815ab292
commit b7cd105130
6 changed files with 49 additions and 56 deletions

View file

@ -25,8 +25,7 @@ import (
"github.com/ethereum/go-ethereum/common" "github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/common/hexutil" "github.com/ethereum/go-ethereum/common/hexutil"
"github.com/ethereum/go-ethereum/crypto" "github.com/ethereum/go-ethereum/crypto"
"github.com/ethereum/go-ethereum/logger" "github.com/ethereum/go-ethereum/log"
"github.com/ethereum/go-ethereum/logger/glog"
) )
var whisperOffLineErr = errors.New("whisper is offline") var whisperOffLineErr = errors.New("whisper is offline")
@ -178,25 +177,25 @@ func (api *PublicWhisperAPI) NewFilter(args WhisperFilterArgs) (string, error) {
if len(args.Topics) == 0 && len(args.KeyName) != 0 { if len(args.Topics) == 0 && len(args.KeyName) != 0 {
info := "NewFilter: at least one topic must be specified" info := "NewFilter: at least one topic must be specified"
glog.V(logger.Error).Infof(info) log.Error(fmt.Sprintf(info))
return "", errors.New(info) return "", errors.New(info)
} }
if len(args.KeyName) != 0 && len(filter.KeySym) == 0 { if len(args.KeyName) != 0 && len(filter.KeySym) == 0 {
info := "NewFilter: key was not found by name: " + args.KeyName info := "NewFilter: key was not found by name: " + args.KeyName
glog.V(logger.Error).Infof(info) log.Error(fmt.Sprintf(info))
return "", errors.New(info) return "", errors.New(info)
} }
if len(args.To) == 0 && len(filter.KeySym) == 0 { if len(args.To) == 0 && len(filter.KeySym) == 0 {
info := "NewFilter: filter must contain either symmetric or asymmetric key" info := "NewFilter: filter must contain either symmetric or asymmetric key"
glog.V(logger.Error).Infof(info) log.Error(fmt.Sprintf(info))
return "", errors.New(info) return "", errors.New(info)
} }
if len(args.To) != 0 && len(filter.KeySym) != 0 { if len(args.To) != 0 && len(filter.KeySym) != 0 {
info := "NewFilter: filter must not contain both symmetric and asymmetric key" info := "NewFilter: filter must not contain both symmetric and asymmetric key"
glog.V(logger.Error).Infof(info) log.Error(fmt.Sprintf(info))
return "", errors.New(info) return "", errors.New(info)
} }
@ -204,13 +203,13 @@ func (api *PublicWhisperAPI) NewFilter(args WhisperFilterArgs) (string, error) {
dst := crypto.ToECDSAPub(common.FromHex(args.To)) dst := crypto.ToECDSAPub(common.FromHex(args.To))
if !ValidatePublicKey(dst) { if !ValidatePublicKey(dst) {
info := "NewFilter: Invalid 'To' address" info := "NewFilter: Invalid 'To' address"
glog.V(logger.Error).Infof(info) log.Error(fmt.Sprintf(info))
return "", errors.New(info) return "", errors.New(info)
} }
filter.KeyAsym = api.whisper.GetIdentity(string(args.To)) filter.KeyAsym = api.whisper.GetIdentity(string(args.To))
if filter.KeyAsym == nil { if filter.KeyAsym == nil {
info := "NewFilter: non-existent identity provided" info := "NewFilter: non-existent identity provided"
glog.V(logger.Error).Infof(info) log.Error(fmt.Sprintf(info))
return "", errors.New(info) return "", errors.New(info)
} }
} }
@ -218,7 +217,7 @@ func (api *PublicWhisperAPI) NewFilter(args WhisperFilterArgs) (string, error) {
if len(args.From) > 0 { if len(args.From) > 0 {
if !ValidatePublicKey(filter.Src) { if !ValidatePublicKey(filter.Src) {
info := "NewFilter: Invalid 'From' address" info := "NewFilter: Invalid 'From' address"
glog.V(logger.Error).Infof(info) log.Error(fmt.Sprintf(info))
return "", errors.New(info) return "", errors.New(info)
} }
} }
@ -277,13 +276,13 @@ func (api *PublicWhisperAPI) Post(args PostArgs) error {
pub := crypto.ToECDSAPub(common.FromHex(args.From)) pub := crypto.ToECDSAPub(common.FromHex(args.From))
if !ValidatePublicKey(pub) { if !ValidatePublicKey(pub) {
info := "Post: Invalid 'From' address" info := "Post: Invalid 'From' address"
glog.V(logger.Error).Infof(info) log.Error(fmt.Sprintf(info))
return errors.New(info) return errors.New(info)
} }
params.Src = api.whisper.GetIdentity(string(args.From)) params.Src = api.whisper.GetIdentity(string(args.From))
if params.Src == nil { if params.Src == nil {
info := "Post: non-existent identity provided" info := "Post: non-existent identity provided"
glog.V(logger.Error).Infof(info) log.Error(fmt.Sprintf(info))
return errors.New(info) return errors.New(info)
} }
} }
@ -291,7 +290,7 @@ func (api *PublicWhisperAPI) Post(args PostArgs) error {
filter := api.whisper.GetFilter(args.FilterID) filter := api.whisper.GetFilter(args.FilterID)
if filter == nil && len(args.FilterID) > 0 { if filter == nil && len(args.FilterID) > 0 {
info := fmt.Sprintf("Post: wrong filter id %s", args.FilterID) info := fmt.Sprintf("Post: wrong filter id %s", args.FilterID)
glog.V(logger.Error).Infof(info) log.Error(fmt.Sprintf(info))
return errors.New(info) return errors.New(info)
} }
@ -307,7 +306,7 @@ func (api *PublicWhisperAPI) Post(args PostArgs) error {
sz := len(filter.Topics) sz := len(filter.Topics)
if sz < 1 { if sz < 1 {
info := fmt.Sprintf("Post: no topics in filter # %s", args.FilterID) info := fmt.Sprintf("Post: no topics in filter # %s", args.FilterID)
glog.V(logger.Error).Infof(info) log.Error(fmt.Sprintf(info))
return errors.New(info) return errors.New(info)
} else if sz == 1 { } else if sz == 1 {
params.Topic = filter.Topics[0] params.Topic = filter.Topics[0]
@ -322,26 +321,26 @@ func (api *PublicWhisperAPI) Post(args PostArgs) error {
// validate // validate
if len(args.KeyName) != 0 && len(params.KeySym) == 0 { if len(args.KeyName) != 0 && len(params.KeySym) == 0 {
info := "Post: key was not found by name: " + args.KeyName info := "Post: key was not found by name: " + args.KeyName
glog.V(logger.Error).Infof(info) log.Error(fmt.Sprintf(info))
return errors.New(info) return errors.New(info)
} }
if len(args.To) == 0 && len(params.KeySym) == 0 { if len(args.To) == 0 && len(params.KeySym) == 0 {
info := "Post: message must be encrypted either symmetrically or asymmetrically" info := "Post: message must be encrypted either symmetrically or asymmetrically"
glog.V(logger.Error).Infof(info) log.Error(fmt.Sprintf(info))
return errors.New(info) return errors.New(info)
} }
if len(args.To) != 0 && len(params.KeySym) != 0 { if len(args.To) != 0 && len(params.KeySym) != 0 {
info := "Post: ambigous encryption method requested" info := "Post: ambigous encryption method requested"
glog.V(logger.Error).Infof(info) log.Error(fmt.Sprintf(info))
return errors.New(info) return errors.New(info)
} }
if len(args.To) > 0 { if len(args.To) > 0 {
if !ValidatePublicKey(params.Dst) { if !ValidatePublicKey(params.Dst) {
info := "Post: Invalid 'To' address" info := "Post: Invalid 'To' address"
glog.V(logger.Error).Infof(info) log.Error(fmt.Sprintf(info))
return errors.New(info) return errors.New(info)
} }
} }
@ -350,17 +349,17 @@ func (api *PublicWhisperAPI) Post(args PostArgs) error {
message := NewSentMessage(&params) message := NewSentMessage(&params)
envelope, err := message.Wrap(&params) envelope, err := message.Wrap(&params)
if err != nil { if err != nil {
glog.V(logger.Error).Infof(err.Error()) log.Error(fmt.Sprintf(err.Error()))
return err return err
} }
if len(envelope.Data) > MaxMessageLength { if len(envelope.Data) > MaxMessageLength {
info := "Post: message is too big" info := "Post: message is too big"
glog.V(logger.Error).Infof(info) log.Error(fmt.Sprintf(info))
return errors.New(info) return errors.New(info)
} }
if (envelope.Topic == TopicType{} && envelope.IsSymmetric()) { if (envelope.Topic == TopicType{} && envelope.IsSymmetric()) {
info := "Post: topic is missing for symmetric encryption" info := "Post: topic is missing for symmetric encryption"
glog.V(logger.Error).Infof(info) log.Error(fmt.Sprintf(info))
return errors.New(info) return errors.New(info)
} }

View file

@ -23,8 +23,7 @@ import (
"sync" "sync"
"github.com/ethereum/go-ethereum/common" "github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/logger" "github.com/ethereum/go-ethereum/log"
"github.com/ethereum/go-ethereum/logger/glog"
) )
type Filter struct { type Filter struct {
@ -107,7 +106,7 @@ func (fs *Filters) NotifyWatchers(env *Envelope, p2pMessage bool) {
var msg *ReceivedMessage var msg *ReceivedMessage
for j, watcher := range fs.watchers { for j, watcher := range fs.watchers {
if p2pMessage && !watcher.AcceptP2P { if p2pMessage && !watcher.AcceptP2P {
glog.V(logger.Detail).Infof("msg [%x], filter [%d]: p2p messages are not allowed \n", env.Hash(), j) log.Trace(fmt.Sprintf("msg [%x], filter [%s]: p2p messages are not allowed", env.Hash(), j))
continue continue
} }
@ -119,10 +118,10 @@ func (fs *Filters) NotifyWatchers(env *Envelope, p2pMessage bool) {
if match { if match {
msg = env.Open(watcher) msg = env.Open(watcher)
if msg == nil { if msg == nil {
glog.V(logger.Detail).Infof("msg [%x], filter [%d]: failed to open \n", env.Hash(), j) log.Trace(fmt.Sprintf("msg [%x], filter [%s]: failed to open", env.Hash(), j))
} }
} else { } else {
glog.V(logger.Detail).Infof("msg [%x], filter [%d]: does not match \n", env.Hash(), j) log.Trace(fmt.Sprintf("msg [%x], filter [%s]: does not match", env.Hash(), j))
} }
} }

View file

@ -30,8 +30,8 @@ import (
"github.com/ethereum/go-ethereum/common" "github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/crypto" "github.com/ethereum/go-ethereum/crypto"
"github.com/ethereum/go-ethereum/logger" "github.com/ethereum/go-ethereum/crypto/ecies"
"github.com/ethereum/go-ethereum/logger/glog" "github.com/ethereum/go-ethereum/log"
"golang.org/x/crypto/pbkdf2" "golang.org/x/crypto/pbkdf2"
) )
@ -143,7 +143,7 @@ func (msg *SentMessage) appendPadding(params *MessageParams) {
func (msg *SentMessage) sign(key *ecdsa.PrivateKey) error { func (msg *SentMessage) sign(key *ecdsa.PrivateKey) error {
if isMessageSigned(msg.Raw[0]) { if isMessageSigned(msg.Raw[0]) {
// this should not happen, but no reason to panic // this should not happen, but no reason to panic
glog.V(logger.Error).Infof("Trying to sign a message which was already signed") log.Error(fmt.Sprintf("Trying to sign a message which was already signed"))
return nil return nil
} }
@ -163,7 +163,7 @@ func (msg *SentMessage) encryptAsymmetric(key *ecdsa.PublicKey) error {
if !ValidatePublicKey(key) { if !ValidatePublicKey(key) {
return fmt.Errorf("Invalid public key provided for asymmetric encryption") return fmt.Errorf("Invalid public key provided for asymmetric encryption")
} }
encrypted, err := crypto.Encrypt(key, msg.Raw) encrypted, err := ecies.Encrypt(crand.Reader, ecies.ImportECDSAPublic(key), msg.Raw, nil, nil)
if err == nil { if err == nil {
msg.Raw = encrypted msg.Raw = encrypted
} }
@ -237,7 +237,7 @@ func (msg *SentMessage) Wrap(options *MessageParams) (envelope *Envelope, err er
} }
} }
if len(msg.Raw) > MaxMessageLength { if len(msg.Raw) > MaxMessageLength {
glog.V(logger.Error).Infof("Message size must not exceed %d bytes", MaxMessageLength) log.Error(fmt.Sprintf("Message size must not exceed %d bytes", MaxMessageLength))
return nil, errors.New("Oversized message") return nil, errors.New("Oversized message")
} }
var salt, nonce []byte var salt, nonce []byte
@ -280,7 +280,7 @@ func (msg *ReceivedMessage) decryptSymmetric(key []byte, salt []byte, nonce []by
} }
if len(nonce) != aesgcm.NonceSize() { if len(nonce) != aesgcm.NonceSize() {
info := fmt.Sprintf("Wrong AES nonce size - want: %d, got: %d", len(nonce), aesgcm.NonceSize()) info := fmt.Sprintf("Wrong AES nonce size - want: %d, got: %d", len(nonce), aesgcm.NonceSize())
glog.V(logger.Error).Infof(info) log.Error(fmt.Sprintf(info))
return errors.New(info) return errors.New(info)
} }
decrypted, err := aesgcm.Open(nil, nonce, msg.Raw, nil) decrypted, err := aesgcm.Open(nil, nonce, msg.Raw, nil)
@ -293,7 +293,7 @@ func (msg *ReceivedMessage) decryptSymmetric(key []byte, salt []byte, nonce []by
// decryptAsymmetric decrypts an encrypted payload with a private key. // decryptAsymmetric decrypts an encrypted payload with a private key.
func (msg *ReceivedMessage) decryptAsymmetric(key *ecdsa.PrivateKey) error { func (msg *ReceivedMessage) decryptAsymmetric(key *ecdsa.PrivateKey) error {
decrypted, err := crypto.Decrypt(key, msg.Raw) decrypted, err := ecies.ImportECDSA(key).Decrypt(crand.Reader, msg.Raw, nil, nil)
if err == nil { if err == nil {
msg.Raw = decrypted msg.Raw = decrypted
} }
@ -351,7 +351,7 @@ func (msg *ReceivedMessage) SigToPubKey() *ecdsa.PublicKey {
pub, err := crypto.SigToPub(msg.hash(), msg.Signature) pub, err := crypto.SigToPub(msg.hash(), msg.Signature)
if err != nil { if err != nil {
glog.V(logger.Error).Infof("Could not get public key from signature: %v", err) log.Error(fmt.Sprintf("Could not get public key from signature: %v", err))
return nil return nil
} }
return pub return pub

View file

@ -21,8 +21,7 @@ import (
"time" "time"
"github.com/ethereum/go-ethereum/common" "github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/logger" "github.com/ethereum/go-ethereum/log"
"github.com/ethereum/go-ethereum/logger/glog"
"github.com/ethereum/go-ethereum/p2p" "github.com/ethereum/go-ethereum/p2p"
"github.com/ethereum/go-ethereum/rlp" "github.com/ethereum/go-ethereum/rlp"
set "gopkg.in/fatih/set.v0" set "gopkg.in/fatih/set.v0"
@ -56,13 +55,13 @@ func newPeer(host *Whisper, remote *p2p.Peer, rw p2p.MsgReadWriter) *Peer {
// into the network. // into the network.
func (p *Peer) start() { func (p *Peer) start() {
go p.update() go p.update()
glog.V(logger.Debug).Infof("%v: whisper started", p.peer) log.Debug(fmt.Sprintf("%v: whisper started", p.peer))
} }
// stop terminates the peer updater, stopping message forwarding to it. // stop terminates the peer updater, stopping message forwarding to it.
func (p *Peer) stop() { func (p *Peer) stop() {
close(p.quit) close(p.quit)
glog.V(logger.Debug).Infof("%v: whisper stopped", p.peer) log.Debug(fmt.Sprintf("%v: whisper stopped", p.peer))
} }
// handshake sends the protocol initiation status message to the remote peer and // handshake sends the protocol initiation status message to the remote peer and
@ -111,7 +110,7 @@ func (p *Peer) update() {
case <-transmit.C: case <-transmit.C:
if err := p.broadcast(); err != nil { if err := p.broadcast(); err != nil {
glog.V(logger.Info).Infof("%v: broadcast failed: %v", p.peer, err) log.Info(fmt.Sprintf("%v: broadcast failed: %v", p.peer, err))
return return
} }
@ -166,7 +165,7 @@ func (p *Peer) broadcast() error {
if err := p2p.Send(p.ws, messagesCode, transmit); err != nil { if err := p2p.Send(p.ws, messagesCode, transmit); err != nil {
return err return err
} }
glog.V(logger.Detail).Infoln(p.peer, "broadcasted", len(transmit), "message(s)") log.Trace(fmt.Sprint(p.peer, "broadcasted", len(transmit), "message(s)"))
return nil return nil
} }

View file

@ -107,9 +107,6 @@ func TestSimulation(t *testing.T) {
} }
func initialize(t *testing.T) { func initialize(t *testing.T) {
//glog.SetV(6)
//glog.SetToStderr(true)
var err error var err error
ip := net.IPv4(127, 0, 0, 1) ip := net.IPv4(127, 0, 0, 1)
port0 := 30303 port0 := 30303

View file

@ -28,8 +28,7 @@ import (
"github.com/ethereum/go-ethereum/common" "github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/crypto" "github.com/ethereum/go-ethereum/crypto"
"github.com/ethereum/go-ethereum/logger" "github.com/ethereum/go-ethereum/log"
"github.com/ethereum/go-ethereum/logger/glog"
"github.com/ethereum/go-ethereum/p2p" "github.com/ethereum/go-ethereum/p2p"
"github.com/ethereum/go-ethereum/rpc" "github.com/ethereum/go-ethereum/rpc"
"golang.org/x/crypto/pbkdf2" "golang.org/x/crypto/pbkdf2"
@ -303,7 +302,7 @@ func (w *Whisper) Send(envelope *Envelope) error {
// Start implements node.Service, starting the background data propagation thread // Start implements node.Service, starting the background data propagation thread
// of the Whisper protocol. // of the Whisper protocol.
func (w *Whisper) Start(*p2p.Server) error { func (w *Whisper) Start(*p2p.Server) error {
glog.V(logger.Info).Infoln("Whisper started") log.Info(fmt.Sprint("Whisper started"))
go w.update() go w.update()
numCPU := runtime.NumCPU() numCPU := runtime.NumCPU()
@ -318,7 +317,7 @@ func (w *Whisper) Start(*p2p.Server) error {
// of the Whisper protocol. // of the Whisper protocol.
func (w *Whisper) Stop() error { func (w *Whisper) Stop() error {
close(w.quit) close(w.quit)
glog.V(logger.Info).Infoln("Whisper stopped") log.Info(fmt.Sprint("Whisper stopped"))
return nil return nil
} }
@ -360,19 +359,19 @@ func (wh *Whisper) runMessageLoop(p *Peer, rw p2p.MsgReadWriter) error {
switch packet.Code { switch packet.Code {
case statusCode: case statusCode:
// this should not happen, but no need to panic; just ignore this message. // this should not happen, but no need to panic; just ignore this message.
glog.V(logger.Warn).Infof("%v: unxepected status message received", p.peer) log.Warn(fmt.Sprintf("%v: unxepected status message received", p.peer))
case messagesCode: case messagesCode:
// decode the contained envelopes // decode the contained envelopes
var envelopes []*Envelope var envelopes []*Envelope
if err := packet.Decode(&envelopes); err != nil { if err := packet.Decode(&envelopes); err != nil {
glog.V(logger.Warn).Infof("%v: failed to decode envelope: [%v], peer will be disconnected", p.peer, err) log.Warn(fmt.Sprintf("%v: failed to decode envelope: [%v], peer will be disconnected", p.peer, err))
return fmt.Errorf("garbage received") return fmt.Errorf("garbage received")
} }
// inject all envelopes into the internal pool // inject all envelopes into the internal pool
for _, envelope := range envelopes { for _, envelope := range envelopes {
cached, err := wh.add(envelope) cached, err := wh.add(envelope)
if err != nil { if err != nil {
glog.V(logger.Warn).Infof("%v: bad envelope received: [%v], peer will be disconnected", p.peer, err) log.Warn(fmt.Sprintf("%v: bad envelope received: [%v], peer will be disconnected", p.peer, err))
return fmt.Errorf("invalid envelope") return fmt.Errorf("invalid envelope")
} }
if cached { if cached {
@ -387,7 +386,7 @@ func (wh *Whisper) runMessageLoop(p *Peer, rw p2p.MsgReadWriter) error {
if p.trusted { if p.trusted {
var envelope Envelope var envelope Envelope
if err := packet.Decode(&envelope); err != nil { if err := packet.Decode(&envelope); err != nil {
glog.V(logger.Warn).Infof("%v: failed to decode direct message: [%v], peer will be disconnected", p.peer, err) log.Warn(fmt.Sprintf("%v: failed to decode direct message: [%v], peer will be disconnected", p.peer, err))
return fmt.Errorf("garbage received (directMessage)") return fmt.Errorf("garbage received (directMessage)")
} }
wh.postEvent(&envelope, true) wh.postEvent(&envelope, true)
@ -397,7 +396,7 @@ func (wh *Whisper) runMessageLoop(p *Peer, rw p2p.MsgReadWriter) error {
if wh.mailServer != nil { if wh.mailServer != nil {
var request Envelope var request Envelope
if err := packet.Decode(&request); err != nil { if err := packet.Decode(&request); err != nil {
glog.V(logger.Warn).Infof("%v: failed to decode p2p request message: [%v], peer will be disconnected", p.peer, err) log.Warn(fmt.Sprintf("%v: failed to decode p2p request message: [%v], peer will be disconnected", p.peer, err))
return fmt.Errorf("garbage received (p2p request)") return fmt.Errorf("garbage received (p2p request)")
} }
wh.mailServer.DeliverMail(p, &request) wh.mailServer.DeliverMail(p, &request)
@ -431,7 +430,7 @@ func (wh *Whisper) add(envelope *Envelope) (bool, error) {
if envelope.Expiry+SynchAllowance*2 < now { if envelope.Expiry+SynchAllowance*2 < now {
return false, fmt.Errorf("very old message") return false, fmt.Errorf("very old message")
} else { } else {
glog.V(logger.Debug).Infof("expired envelope dropped [%x]", envelope.Hash()) log.Debug(fmt.Sprintf("expired envelope dropped [%x]", envelope.Hash()))
return false, nil // drop envelope without error return false, nil // drop envelope without error
} }
} }
@ -455,7 +454,7 @@ func (wh *Whisper) add(envelope *Envelope) (bool, error) {
} }
if envelope.PoW() < MinimumPoW && !wh.test { if envelope.PoW() < MinimumPoW && !wh.test {
glog.V(logger.Debug).Infof("envelope with low PoW dropped: %f [%x]", envelope.PoW(), envelope.Hash()) log.Debug(fmt.Sprintf("envelope with low PoW dropped: %f [%x]", envelope.PoW(), envelope.Hash()))
return false, nil // drop envelope without error return false, nil // drop envelope without error
} }
@ -475,9 +474,9 @@ func (wh *Whisper) add(envelope *Envelope) (bool, error) {
wh.poolMu.Unlock() wh.poolMu.Unlock()
if alreadyCached { if alreadyCached {
glog.V(logger.Detail).Infof("whisper envelope already cached [%x]\n", envelope.Hash()) log.Trace(fmt.Sprintf("whisper envelope already cached [%x]\n", envelope.Hash()))
} else { } else {
glog.V(logger.Detail).Infof("cached whisper envelope [%x]: %v\n", envelope.Hash(), envelope) log.Trace(fmt.Sprintf("cached whisper envelope [%x]: %v\n", envelope.Hash(), envelope))
wh.stats.totalMemoryUsed += envelope.size() wh.stats.totalMemoryUsed += envelope.size()
wh.postEvent(envelope, false) // notify the local node about the new message wh.postEvent(envelope, false) // notify the local node about the new message
if wh.mailServer != nil { if wh.mailServer != nil {
@ -509,7 +508,7 @@ func (w *Whisper) checkOverflow() {
if queueSize == messageQueueLimit { if queueSize == messageQueueLimit {
if !w.overflow { if !w.overflow {
w.overflow = true w.overflow = true
glog.V(logger.Warn).Infoln("message queue overflow") log.Warn(fmt.Sprint("message queue overflow"))
} }
} else if queueSize <= messageQueueLimit/2 { } else if queueSize <= messageQueueLimit/2 {
if w.overflow { if w.overflow {