- Added triple axis scan command.

- Introduced simulation mode to simdriv and simcter, i.e they never fail and
  finish at once.
- Started defining MAD compatibility commands in Tcl
- Fixed a bug in FOCUS_src which caused it to leak sockets.
- Introduced setsockopt SO_REUSEADDR to all new sockets in sinqhm in order
  to loose the next sinqhm error.

simdriv.c

@@ -73,6 +73,15 @@
     assert(self);
     pDriv = (SIMDriv *)self;
 
+    /*
+      no error checking case
+    */
+    if(pDriv->fFailure < .0)
+    {
+      *fPos = pDriv->fPos;
+      return OKOK;
+    }
+
     if(SimRandom() < pDriv->fFailure)
     {
       *fPos = SimRandom();
@@ -100,6 +109,16 @@
     assert(self);
     pDriv = (SIMDriv *)self;
 
+    /*
+      no failure, no wait situation
+    */
+    if(pDriv->fFailure < .0)
+    {
+      pDriv->fPos = fVal;
+      return OKOK;
+    }
+
+
     /* calculate time for completion */
     fDiff = fVal - pDriv->fPos;
     if(fDiff < .0) fDiff = -fDiff;
@@ -187,6 +206,15 @@
      
      assert(self);
      pDriv = (SIMDriv *)self;
+
+     /*
+       no wait, no fail situation
+     */
+     if(pDriv->fFailure < .0)
+     {
+       return HWIdle;
+     }
+
      if(RunComplete(pDriv))
      {
        return HWIdle;