go/r3-eventbroker_zmq/main.go

   1 // (c) Bernhard Tittelbach, 2013
   2
   3 package main
   4
   5 import (
   6         "flag"
   7         //~ "time"
   8         pubsub "github.com/tuxychandru/pubsub"
   9         r3events "svn.spreadspace.org/realraum/go.svn/r3events"
  10 )
  11
  12 //~ func StringArrayToByteArray(ss []string) [][]byte {
  13 //~ bb := make([][]byte, len(ss))
  14 //~ for index, s := range(ss) {
  15 //~ bb[index] = []byte(s)
  16 //~ }
  17 //~ return bb
  18 //~ }
  19
  20 // ---------- Main Code -------------
  21
  22 var (
  23         doorsub_addr_      string
  24         sensorssub_port_   string
  25         pub_port_          string
  26         keylookup_addr_    string
  27         brain_listen_addr_ string
  28         door_cmd_addr_     string
  29         use_syslog_        bool
  30         enable_debuglog_   bool
  31 )
  32
  33 func init() {
  34         flag.StringVar(&door_cmd_addr_, "doorcmdaddr", "ipc:///run/tuer/door_cmd.ipc", "zmq door event publish addr")
  35         flag.StringVar(&doorsub_addr_, "doorsubaddr", "tcp://torwaechter.realraum.at:4242", "zmq door event publish addr")
  36         flag.StringVar(&sensorssub_port_, "sensorsubport", "tcp://*:4243", "zmq public/listen socket addr for incoming sensor data")
  37         flag.StringVar(&pub_port_, "pubport", "tcp://*:4244", "zmq port publishing consodilated events")
  38         flag.StringVar(&keylookup_addr_, "keylookupaddr", "ipc:///run/tuer/door_keyname.ipc", "address to use for key/name lookups")
  39         flag.StringVar(&brain_listen_addr_, "brainlisten", "tcp://*:4245", "address to listen for requests about latest stored event")
  40         flag.BoolVar(&use_syslog_, "syslog", false, "log to syslog local2 facility")
  41         flag.BoolVar(&enable_debuglog_, "debug", false, "enable debug logging")
  42         flag.Parse()
  43 }
  44
  45 func main() {
  46         if enable_debuglog_ {
  47                 LogEnableDebuglog()
  48         }
  49         if use_syslog_ {
  50                 LogEnableSyslog()
  51                 Syslog_.Print("started")
  52                 defer Syslog_.Print("exiting")
  53         }
  54
  55         zmqctx, sub_in_chans, pub_out_socket, keylookup_socket := ZmqsInit(doorsub_addr_, sensorssub_port_, pub_port_, keylookup_addr_)
  56         if sub_in_chans != nil {
  57                 defer sub_in_chans.Close()
  58         }
  59         defer zmqctx.Close()
  60         if pub_out_socket != nil {
  61                 defer pub_out_socket.Close()
  62         }
  63         if keylookup_socket != nil {
  64                 defer keylookup_socket.Close()
  65         }
  66         if sub_in_chans == nil || pub_out_socket == nil || keylookup_socket == nil {
  67                 panic("zmq sockets must not be nil !!")
  68         }
  69
  70         ps := pubsub.New(10)
  71         defer ps.Shutdown() // ps.Shutdown should be called before zmq_ctx.Close(), since it will cause goroutines to shutdown and close zqm_sockets which is needed for zmq_ctx.Close() to return
  72         //~ ticker := time.NewTicker(time.Duration(5) * time.Minute)
  73
  74         store_these_events_chan := ps.Sub("door", "doorcmd", "presence", "sensors", "buttons", "movement")
  75         go BrainCenter(zmqctx, brain_listen_addr_, store_these_events_chan)
  76
  77         go MetaEventRoutine_Movement(ps, 10, 20, 10)
  78         go MetaEventRoutine_Presence(ps, 21, 200)
  79
  80         // --- get update on most recent status ---
  81         answ := ZmqsAskQuestionsAndClose(zmqctx, door_cmd_addr_, [][][]byte{[][]byte{[]byte("status")}})
  82         for _, a := range answ {
  83                 ParseSocketInputLine(a, ps, keylookup_socket)
  84         }
  85
  86         publish_these_events_chan := ps.Sub("door", "doorcmd", "presence", "sensors", "buttons", "movement")
  87         for {
  88                 select {
  89                 case subin := <-sub_in_chans.In():
  90                         ParseSocketInputLine(subin, ps, keylookup_socket)
  91                 //~ case <- ticker.C:
  92                 //~ MakeTimeTick(ps)
  93                 case event_interface := <-publish_these_events_chan:
  94                         data, err := r3events.MarshalEvent2ByteByte(event_interface)
  95                         Debug_.Printf("publishing %s", data)
  96                         if err != nil {
  97                                 Syslog_.Print(err)
  98                                 continue
  99                         }
 100                         if err := pub_out_socket.Send(data); err != nil {
 101                                 panic(err)
 102                         }
 103                 }
 104         }
 105
 106 }