onTimer: function () {
today = new Date();
var msg = today.getSeconds() * 1000 + today.getMilliseconds();
num_send = this.send(pee ': time is: ' + msg + '\r\n');
this.resetHeartBeat(); // schedule next timer event [sec]
},
resetHeartBeat: function () {
this.setTimer(beat_timer); // schedule next timer event [sec]
}
};
}
Generic use case: Real time timestamp
Implements a custom DMCC command to set the real time (send current time in seconds starting Jan 1 1970, as output
by date +”%s” command). Prepend output with real time timestamp.
// communication script
var time_offset=0;
function CommHandler()
{
var peer_name;
return {
onConnect: function (peerName)
{
peer_name = peerName;
this.expectFramed("||;1>SET TIME.NOW ", "\r\n", 128); //
some pattern unlikely to happen
// enable the handler for this connection:
return true;
},
onDisconnect: function ()
{
},
onError: function (errorMsg)
{
},
onExpectedData: function (inputString) {
realTime = parseInt(inputString)*1000;
localTime = (new Date()).getTime();
time_offset = realTime - localTime;
this.send("||[0]\r\n");
return true;
},
59
DataMan Application Development
