add 60 sec request timeout

vispa/workspace.py

@@ -201,6 +201,8 @@ class WrappedChannelFile(object):
 
 class RpycConnection(rpyc.Connection):
 
+    REQUEST_TIMEOUT = 60
+
     def _send_request(self, seq, handler, args):
         self._send(rpyc.core.consts.MSG_REQUEST, seq, (handler, self._box(args)))
         return seq
@@ -223,8 +225,12 @@ class RpycConnection(rpyc.Connection):
         """
         seq = next(self._seqcounter)
         self._send_request(seq, handler, args)
+        start = time.time()
         while seq not in self._sync_replies:
             self.serve(0.1)
+            if (start + self.REQUEST_TIMEOUT) < time.time():
+                break
+
         isexc, obj = self._sync_replies.pop(seq)
         if isexc:
             raise obj

vispa/workspace_loader.py

@@ -256,6 +256,9 @@ class ThreadPool:
 
 
 class RpycConnection(rpyc.Connection):
+
+    REQUEST_TIMEOUT = 60
+
     def _send_request(self, seq, handler, args):
         self._send(rpyc.core.consts.MSG_REQUEST, seq, (handler, self._box(args)))
         return seq
@@ -278,8 +281,12 @@ class RpycConnection(rpyc.Connection):
         """
         seq = next(self._seqcounter)
         self._send_request(seq, handler, args)
+        start = time.time()
         while seq not in self._sync_replies:
             self.serve(0.1)
+            if (start + self.REQUEST_TIMEOUT) < time.time():
+                break
+
         isexc, obj = self._sync_replies.pop(seq)
         if isexc:
             raise obj