===================================================================
RCS file: /home/cvs/OpenXM/src/OpenMath/OMproxy.java,v
retrieving revision 1.28
retrieving revision 1.31
diff -u -p -r1.28 -r1.31
--- OpenXM/src/OpenMath/OMproxy.java	2000/01/21 07:04:55	1.28
+++ OpenXM/src/OpenMath/OMproxy.java	2000/03/14 04:44:17	1.31
@@ -1,5 +1,5 @@
 /**
- * $OpenXM: OpenXM/src/OpenMath/OMproxy.java,v 1.27 2000/01/21 06:55:45 tam Exp $
+ * $OpenXM: OpenXM/src/OpenMath/OMproxy.java,v 1.30 2000/03/12 14:24:21 tam Exp $
  */
 
 import JP.ac.kobe_u.math.tam.OpenXM.*;
@@ -20,27 +20,34 @@ class OMproxy implements Runnable{
     OM2OXM P = new OM2OXM();
 
     debug("OMproxy started.");
-    while(true){
-      try{
-	int ox_tag = ox.receiveOXtag();
+    try{
+      while(true){
+	try{
+	  int ox_tag = ox.receiveOXtag();
 
-	switch(ox_tag){
-	case OpenXM.OX_COMMAND:
-	  StackMachine(ox.receiveSM());
-	  break;
+	  switch(ox_tag){
+	  case OpenXM.OX_COMMAND:
+	    StackMachine(ox.receiveSM());
+	    break;
 
-	case OpenXM.OX_DATA:
-	  stack.push(ox.receiveCMO());
-	  debug("push: "+ stack.peek());
-	  break;
+	  case OpenXM.OX_DATA:
+	    stack.push(ox.receiveCMO());
+	    debug("push: "+ stack.peek());
+	    break;
+	  }
+	}catch(RuntimeException e){
+	  System.err.println(e.getMessage());
+	  e.printStackTrace();
+	  debug("error occured. stack was cleared.");
 	}
-      }catch(Throwable e){
-	System.err.println(e.getMessage());
-	e.printStackTrace();
-	debug("error occured. stack was cleared.");
       }
+    }catch(IOException e){
+      System.err.println(e.getMessage());
+      e.printStackTrace();
+      System.err.println("error occured, and recovering processes seems to be impossible.");
+    }finally{
+      System.out.println("breaking...");
     }
-    //System.out.println("breaking...");
   }
 
   /*
@@ -78,7 +85,7 @@ class OMproxy implements Runnable{
     int argc;
 
     if(!(stack.peek() instanceof CMO_STRING)){
-      stack.push(new CMO_ERROR2());
+      stack.push(new CMO_ERROR2(new CMO_NULL()));
       return;
     }
     function_name = ((CMO_STRING)stack.pop()).getString();
@@ -89,7 +96,7 @@ class OMproxy implements Runnable{
     }
 
     if(argc != 1){
-      stack.push(new CMO_ERROR2());
+      stack.push(new CMO_ERROR2(new CMO_NULL()));
       return;
     }
 
@@ -101,7 +108,7 @@ class OMproxy implements Runnable{
       return;
     }
 
-    stack.push(new CMO_ERROR2());
+    stack.push(new CMO_ERROR2(new CMO_NULL()));
     return;
   }
 
@@ -127,8 +134,8 @@ class OMproxy implements Runnable{
     }
 
     {
-      CMO[] CMOFormat = {new CMO_INT32(CMO.CMO_NULL),
-			 new CMO_INT32(CMO.CMO_INT32),
+      CMO[] CMOFormat = {new CMO_INT32(CMO.NULL),
+			 new CMO_INT32(CMO.INT32),
 			 new CMO_INT32(CMO.CMO_STRING),
 			 new CMO_INT32(CMO.CMO_LIST),
 			 new CMO_INT32(CMO.CMO_MONOMIAL32),
@@ -138,7 +145,7 @@ class OMproxy implements Runnable{
 			 new CMO_INT32(CMO.CMO_DMS_GENERIC),
 			 new CMO_INT32(CMO.CMO_RECURSIVE_POLYNOMIAL),
 			 new CMO_INT32(CMO.CMO_DISTRIBUTED_POLYNOMIAL),
-			 new CMO_INT32(CMO.CMO_POLYNOMIAL_IN_ONE_VARIABLE),
+			 new CMO_INT32(CMO.POLYNOMIAL_IN_ONE_VARIABLE),
 			 new CMO_INT32(CMO.CMO_BIGFLOAT),
 			 new CMO_INT32(CMO.CMO_INDETERMINATE),
 			 new CMO_INT32(CMO.CMO_TREE)};
@@ -157,7 +164,7 @@ class OMproxy implements Runnable{
     Object mathcap = stack.pop();
 
     if(mathcap instanceof CMO_MATHCAP){
-      stack.push(new CMO_ERROR2());
+      stack.push(new CMO_ERROR2(new CMO_NULL()));
     }
     ox.setMathCap((CMO_MATHCAP)mathcap);
   }