beremiz

Add retain basic implementation on GNU/Linux

2018-06-07, Andrey Skvortsov
976841968d74
Add retain basic implementation on GNU/Linux

Retain is saved in file and backup of this file is done every time.
File isn't saved on every PLC cycle to avoid high I/O load.
By default, retain is saved every second and on PLC stop/shutdown.
It's possible to override retain flush period by using CFLAGS option
in project's settings. For example, for 0.5 seconds period
use "-DFILE_RETAIN_SAVE_PERIOD_S=0.5".
// import Nevow.Athena
function init() {
Nevow.Athena.Widget.fromAthenaID(1).callRemote('HMIexec', 'HMIinitialisation');
}
WebInterface.PLC = Nevow.Athena.Widget.subclass('WebInterface.PLC');
WebInterface.PLC.method(
'updateHMI',
function (self, data) {
d = self.callRemote('getPLCElement');
d.addCallback(
function liveElementReceived(le) {
d2 = self.addChildWidgetFromWidgetInfo(le);
d2.addCallback(
function childAdded(widget) {
var node = self.nodeById('content');
node.replaceChild(widget.node, node.getElementsByTagName('div')[0]);
init();
});
});
});
Divmod.Base.addLoadEvent(init);