// actually read incoming messages off the wire
// send Message object into ibound channel
func incoming(c *client) {
defer c.workers.Done()
var err error
var cp packets.ControlPacket
DEBUG.Println(NET, "incoming started")
for {
if cp, err = packets.ReadPacket(c.conn); err != nil {
break
}
DEBUG.Println(NET, "Received Message")
c.ibound <- cp
}
// We received an error on read.
// If disconnect is in progress, swallow error and return
select {
case <-c.stop:
DEBUG.Println(NET, "incoming stopped")
return
// Not trying to disconnect, send the error to the errors channel
default:
ERROR.Println(NET, "incoming stopped with error", err)
signalError(c.errors, err)
return
}
}
// Get will retrieve a message from the store, the one associated with
// the provided key value.
func (store *FileStore) Get(key string) packets.ControlPacket {
store.RLock()
defer store.RUnlock()
if !store.opened {
ERROR.Println(STR, "Trying to use file store, but not open")
return nil
}
filepath := fullpath(store.directory, key)
if !exists(filepath) {
return nil
}
mfile, oerr := os.Open(filepath)
chkerr(oerr)
msg, rerr := packets.ReadPacket(mfile)
chkerr(mfile.Close())
// Message was unreadable, return nil
if rerr != nil {
newpath := corruptpath(store.directory, key)
WARN.Println(STR, "corrupted file detected:", rerr.Error(), "archived at:", newpath)
os.Rename(filepath, newpath)
return nil
}
return msg
}
func Test_DecodeMessage_pingresp(t *testing.T) {
bs := bytes.NewBuffer([]byte{
0xD0,
0x00,
})
presp, _ := packets.ReadPacket(bs)
if presp.(*packets.PingrespPacket).MessageType != packets.Pingresp {
t.Errorf("DecodeMessage ping response wrong msg type: %v", presp.(*packets.PingrespPacket).MessageType)
}
if presp.(*packets.PingrespPacket).RemainingLength != 0 {
t.Errorf("DecodeMessage ping response wrong rem len: %d", presp.(*packets.PingrespPacket).RemainingLength)
}
}
// This function is only used for receiving a connack
// when the connection is first started.
// This prevents receiving incoming data while resume
// is in progress if clean session is false.
func (c *client) connect() byte {
DEBUG.Println(NET, "connect started")
ca, err := packets.ReadPacket(c.conn)
if err != nil {
ERROR.Println(NET, "connect got error", err)
return packets.ErrNetworkError
}
if ca == nil {
ERROR.Println(NET, "received nil packet")
return packets.ErrNetworkError
}
msg, ok := ca.(*packets.ConnackPacket)
if !ok {
ERROR.Println(NET, "received msg that was not CONNACK")
return packets.ErrNetworkError
}
DEBUG.Println(NET, "received connack")
return msg.ReturnCode
}