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Emesary: modify bridge to use new MP properties; or to allow the property base for all bridges within a model to use.

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By separating out the bridges this could be used in the future to transmit Emesary properties at a different rate. It is one of the future possible methods to improve MP communications and dual/multi controls
This commit is contained in:
Richard Harrison 2017-12-28 01:25:01 +01:00
parent 4e0483c9e8
commit cc152b67ad
1 changed files with 36 additions and 21 deletions
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57
Nasal/emesary_mp_bridge.nas
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@ -33,7 +33,14 @@
# IsDistinct messages must be absolute and self contained as a later message will
# supercede any earlier ones in the outgoing queue (possibly prior to receipt)
# Use the message type and ident to identify distinct messages
# The outgoing 'port' is a multiplay/generic/string index.
# The outgoing 'port' is a multiplay/emesary/bridge index, however any available string property
# can be used by specifying it in the construction of the incoming or outgoing bridge.
# NOTE: This should not often be changed as it different versions of FG or model will
# have to use the same properties to be able to communicate
# multiplay/emesary/bridge-type is used to identify the bridge that is in use. This is to
# protect against bridges being used for different purposes by different models.
# The bridge-type property should contain an ID that identifies the purpose
# and thereore the message set that the bridge will be using.
# - ! is used as a seperator between the elements that are used to send the
# notification (typeid, sequence, notification)
# - There is an extra ! at the start of the message that is used to indicate protocol version.
@ -65,7 +72,7 @@ var OutgoingMPBridge =
DefaultMessageLifetimeSeconds : 10,
MPStringMaxLen: 128,
new: func(_ident, _notifications_to_bridge=nil, _mpidx=19, _root="", _transmitter=nil)
new: func(_ident, _notifications_to_bridge=nil, _mpidx=19, _root="", _transmitter=nil, _propertybase="emesary/bridge")
{
if (_transmitter == nil)
_transmitter = emesary.GlobalTransmitter;
@ -94,7 +101,7 @@ var OutgoingMPBridge =
new_class.Transmitter = _transmitter;
new_class.TransmitRequired=0;
new_class.Transmitter.Register(new_class);
new_class.MpVariable = _root~"sim/multiplay/generic/string["~new_class.MPidx~"]";
new_class.MpVariable = _root~"sim/multiplay/"~_propertybase~"["~new_class.MPidx~"]";
new_class.TransmitterActive = 0;
new_class.TransmitFrequencySeconds = 1;
new_class.trace = 0;
@ -207,7 +214,7 @@ var OutgoingMPBridge =
}
else
{
print("Emesary: ERROR out of space for ",notification.NotificationType, " transmitted count=",idx, " queue size ",size(me.OutgoingList));
print("Emesary: ERROR [",me.Ident,"] out of space for ",notification.NotificationType, " transmitted count=",idx, " queue size ",size(me.OutgoingList));
notification.MessageExpiryTime = systime()+me.MessageLifeTime;
break;
}
@ -264,12 +271,13 @@ var OutgoingMPBridge =
# route messages to
var IncomingMPBridge =
{
new: func(_ident, _notifications_to_bridge=nil, _mpidx=19, _transmitter=nil)
trace : 0,
new: func(_ident, _notifications_to_bridge=nil, _mpidx=19, _transmitter=nil, _propertybase="emesary/bridge")
{
if (_transmitter == nil)
_transmitter = emesary.GlobalTransmitter;
print("IncomingMPBridge created for "~_ident," mp=",_mpidx, " using Transmitter ",_transmitter.Ident);
print("IncomingMPBridge created for "~_ident," mp=",_mpidx, " using Transmitter ",_transmitter.Ident, " with property base sim/multiplayer/"~_propertybase);
var new_class = emesary.Transmitter.new("IncominggMPBridge "~_ident);
@ -283,28 +291,34 @@ var IncomingMPBridge =
foreach(var n ; new_class.NotificationsToBridge)
{
print(" Incoming bridge notification type --> ",n.NotificationType);
n.IncomingMessageIndex = OutgoingMPBridge.StartMessageIndex;
new_class.NotificationsToBridge_Lookup[n.TypeId] = n;
}
new_class.MPout = "";
new_class.MPidx = _mpidx;
new_class.MPpropertyBase = _propertybase;
new_class.MessageLifeTime = OutgoingMPBridge.DefaultMessageLifetimeSeconds; # seconds
new_class.OutgoingList = [];
new_class.Transmitter = _transmitter;
new_class.MpVariable = "";
new_class.trace = 0;
new_class.Connect = func(_root)
{
me.MpVariable = _root~"sim/multiplay/generic/string["~new_class.MPidx~"]";
me.MpVariable = _root~"sim/multiplay/"~new_class.MPpropertyBase~"["~new_class.MPidx~"]";
me.CallsignPath = _root~"callsign";
me.PropertyRoot = _root;
me.IncomingMessageIndex = OutgoingMPBridge.StartMessageIndex;
setlistener(me.MpVariable, func(v)
{
#print("incoming -->",v.getValue());
#print("incoming ",getprop(me.CallsignPath)," -->",me.PropertyRoot," v=",v.getValue());
me.ProcessIncoming(v.getValue());
});
};
new_class.setprop = func(property, value){
if (IncomingMPBridge.trace == 2)
print("setprop ",new_class.PropertyRoot~property," = ",value);
setprop(new_class.PropertyRoot~property,value);
};
new_class.GetCallsign = func
{
return getprop(me.CallsignPath);
@ -326,7 +340,6 @@ var IncomingMPBridge =
{
if (encoded_val == "")
return;
# print("ProcessIncoming ", encoded_val);
var encoded_notifications = split(OutgoingMPBridge.MessageEndChar, encoded_val);
for (var idx = 0; idx < size(encoded_notifications); idx += 1) {
if (encoded_notifications[idx] == "")
@ -342,24 +355,28 @@ var IncomingMPBridge =
if (bridged_notification == nil) {
print("Error: emesary.IncomingBridge.ProcessIncoming invalid type_id ",msg_type_id);
} else {
if (msg_idx > bridged_notification.IncomingMessageIndex) {
bridged_notification.FromIncomingBridge = 1;
bridged_notification.Callsign = me.GetCallsign();
if(IncomingMPBridge.trace)
print("ProcessIncoming ",bridged_notification.Callsign," ",me.PropertyRoot, "idx=",msg_idx, " bridge_idx=",me.IncomingMessageIndex);
if (msg_idx > me.IncomingMessageIndex) {
var msg_body = encoded_notification[3];
if (me.trace)
if (IncomingMPBridge.trace > 2)
print("received idx=",msg_idx," ",msg_type_id,":",bridged_notification.NotificationType);
# populate fields
var bridgedProperties = bridged_notification.bridgeProperties();
var msglen = size(msg_body);
if (me.trace)
if (IncomingMPBridge.trace > 2)
print("Process ",msg_body," len=",msglen, " BPsize = ",size(bridgedProperties));
var pos = 0;
for (var bpi = 0; bpi < size(bridgedProperties); bpi += 1) {
if (pos < msglen) {
if (me.trace)
if (IncomingMPBridge.trace > 2)
print("dec: pos ",pos);
var bp = bridgedProperties[bpi];
dv = bp.setValue(msg_body, me, pos);
if (me.trace)
if (IncomingMPBridge.trace > 2)
print(" --> next pos ",pos);
if (dv.pos == pos or dv.pos > msglen)
break;
@ -375,10 +392,8 @@ var IncomingMPBridge =
if (bridged_notification.Ident == "none")
bridged_notification.Ident = "mp-bridge";
bridged_notification.FromIncomingBridge = 1;
bridged_notification.Callsign = me.GetCallsign();
me.Transmitter.NotifyAll(bridged_notification);
bridged_notification.IncomingMessageIndex = msg_idx;
me.IncomingMessageIndex = msg_idx;
}
}
}
@ -394,7 +409,7 @@ var IncomingMPBridge =
# Each multiplayer object will have its own incoming bridge. This is necessary to allow message ID
# tracking (as the bridge knows which messages have been already processed)
# Whenever a client connects over MP a new bridge is instantiated
startMPBridge : func(notification_list, mpidx=19, transmitter=nil)
startMPBridge : func(notification_list, mpidx=19, transmitter=nil, _propertybase="emesary/bridge")
{
var incomingBridgeList = {};
@ -414,7 +429,7 @@ var IncomingMPBridge =
if (callsign == "" or callsign == nil)
callsign = path;
var incomingBridge = emesary_mp_bridge.IncomingMPBridge.new(path, notification_list, mpidx, transmitter);
var incomingBridge = emesary_mp_bridge.IncomingMPBridge.new(path, notification_list, mpidx, transmitter, _propertybase);
incomingBridge.Connect(path~"/");
incomingBridgeList[path] = incomingBridge;