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A320-family/Nasal/emesary/exec.nas
2021-09-11 20:11:18 +01:00

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#---------------------------------------------------------------------------
#
# Title : Emesary based real time executive
#
# File Type : Implementation File
#
# Description : Uses emesary notifications to permit nasal subsystems to
# : be invoked in a controlled manner.
#
# Author : Richard Harrison (richard@zaretto.com)
#
# Creation Date : 4 June 2018
#
# Version : 1.0
#
# Copyright (C) 2018 Richard Harrison Released under GPL V2
#
#---------------------------------------------------------------------------*/
#
# real time exec loop.
var frame_inc = 0;
var cur_frame_inc = 0.05;
var execLoop = func
{
notifications.frameNotification.fetchvars();
if (notifications.frameNotification.FrameCount > 20) {
notifications.frameNotification.FrameCount = 0;
}
emesary.GlobalTransmitter.NotifyAll(notifications.frameNotification);
notifications.frameNotification.FrameCount = notifications.frameNotification.FrameCount + 1;
frame_inc = 0.02; #50 Hz
if (frame_inc != cur_frame_inc) {
cur_frame_inc = frame_inc;
}
settimer(execLoop, cur_frame_inc);
}
# setup the properties to monitor for this system
input = {
frame_rate: "/sim/frame-rate",
elapsedTime: "/sim/time/elapsed-sec",
FWCPhase: "/ECAM/warning-phase",
acconfigUnits: "/systems/acconfig/options/weight-kgs",
# Just about everything uses these properties at some stage, lets add them here!
gear0Wow: "/gear/gear[0]/wow",
gear1Wow: "/gear/gear[1]/wow",
gear2Wow: "/gear/gear[2]/wow",
parkingBrake: "/controls/gear/brake-parking",
airspeedV: "/velocities/airspeed-kt",
groundspeed: "/velocities/groundspeed-kt",
engine1State: "/engines/engine[0]/state",
engine2State: "/engines/engine[1]/state",
};
foreach (var name; keys(input)) {
emesary.GlobalTransmitter.NotifyAll(notifications.FrameNotificationAddProperty.new("EXEC", name, input[name]));
}
emesary.GlobalTransmitter.OverrunDetection(9);
setlistener("/sim/signals/fdm-initialized", func() {
execLoop();
}, 0, 0);