timingApp: simplify Network-Mon machinery.

The 2s delay and 1Hz scan rate for Alive-Mon (via cmd_conf_get), coupled
with variable timing on busy machines, can lead to spurious 0 values in
Network-Mon. Using the alarm in cmd_conf_get instead, which will be set
when there is a timeout, provides a much more reliable check.

Also stop using devstat, since its use is only to allow the check based
on Alive-Mon to work when the device hasn't received any configuration.

timingApp/src/sncEVGSetup.stt

@@ -23,14 +23,11 @@ int download;
 assign download to "{P}{R}Download-Cmd.VAL";
 monitor download;
 
-int statdev;
-assign statdev to "{P}{R}DevStatus-Mon";
-monitor statdev;
-
-int past_alive = -1;
-int alive;
-assign alive to "{P}{R}Alive-Mon";
-monitor alive;
+int cmd_conf_get;
+assign cmd_conf_get to "{P}{R}cmd_conf_get";
+monitor cmd_conf_get;
+evflag cmd_conf_get_event;
+sync cmd_conf_get cmd_conf_get_event;
 
 int funsel;
 assign funsel to "{P}{R}DevFun-Sel.VAL";
@@ -269,29 +266,9 @@ ss networkStatus {
 
 	state networkCheck {
 
-		when (delay(2.0)) {
-
-			if (funselRBV == 0) {
-				past_alive = -1;
-				network = 0;
-				pvPut(network,SYNC);
-			}
-			else if (statdev == 0) {
-				past_alive = -1;
-				network = 1;
-				pvPut(network,SYNC);
-			}
-			else if (alive > past_alive) {
-				past_alive = alive;
-				network = 1;
-				pvPut(network,SYNC);
-			}
-			else {
-				past_alive = alive;
-				network = 0;
-				pvPut(network,SYNC);
-			}
-
+		when (efTestAndClear(cmd_conf_get_event)) {
+			network = !(pvStatus(cmd_conf_get) || funselRBV == 0);
+			pvPut(network,SYNC);
 		} state networkCheck
 	}
 }

timingApp/src/sncEVRESetup.stt

@@ -24,10 +24,11 @@ int statdev;
 assign statdev to "{P}{R}DevStatus-Mon";
 monitor statdev;
 
-int past_alive = -1;
-int alive;
-assign alive to "{P}{R}Alive-Mon";
-monitor alive;
+int cmd_conf_get;
+assign cmd_conf_get to "{P}{R}cmd_conf_get";
+monitor cmd_conf_get;
+evflag cmd_conf_get_event;
+sync cmd_conf_get cmd_conf_get_event;
 
 int funsel;
 assign funsel to "";
@@ -150,29 +151,9 @@ ss networkStatus {
 
 	state networkCheck {
 
-		when (delay(2.0)) {
-
-			if (funselRBV == 0) {
-				past_alive = -1;
-				network = 0;
-				pvPut(network,SYNC);
-			}
-			else if (statdev == 0) {
-				past_alive = -1;
-				network = 1;
-				pvPut(network,SYNC);
-			}
-			else if (alive > past_alive) {
-				past_alive = alive;
-				network = 1;
-				pvPut(network,SYNC);
-			}
-			else {
-				past_alive = alive;
-				network = 0;
-				pvPut(network,SYNC);
-			}
-
+		when (efTestAndClear(cmd_conf_get_event)) {
+			network = !(pvStatus(cmd_conf_get) || funselRBV == 0);
+			pvPut(network,SYNC);
 		} state networkCheck
 	}
 }

timingApp/src/sncFOUTSetup.stt

@@ -15,10 +15,11 @@ int statdev;
 assign statdev to "{P}{R}DevStatus-Mon";
 monitor statdev;
 
-int past_alive = -1;
-int alive;
-assign alive to "{P}{R}Alive-Mon";
-monitor alive;
+int cmd_conf_get;
+assign cmd_conf_get to "{P}{R}cmd_conf_get";
+monitor cmd_conf_get;
+evflag cmd_conf_get_event;
+sync cmd_conf_get cmd_conf_get_event;
 
 int funselRBV;
 assign funselRBV to "{P}{R}DevFun-Sts.RVAL";
@@ -105,34 +106,9 @@ ss networkStatus {
 
 	state networkCheck {
 
-		when (delay(2.0)) {
-
-			%{/* Check main status PVs */}%
-
-			if (funselRBV == 0) {
-
-				past_alive = -1;
-				network = 0;
-				pvPut(network,SYNC);
-			}
-			else if (statdev == 0) {
-
-				past_alive = -1;
-				network = 1;
-				pvPut(network,SYNC);
-			}
-			else if (alive > past_alive) {
-
-				past_alive = alive;
-				network = 1;
-				pvPut(network,SYNC);
-			}
-			else {
-				past_alive = alive;
-				network = 0;
-				pvPut(network,SYNC);
-			}
-
+		when (efTestAndClear(cmd_conf_get_event)) {
+			network = !(pvStatus(cmd_conf_get) || funselRBV == 0);
+			pvPut(network,SYNC);
 		} state networkCheck
 	}
 }