From 8a40871f3013e7b6168dc5abfd9f602436cfccfd Mon Sep 17 00:00:00 2001
From: whitequark <whitequark@whitequark.org>
Date: Wed, 3 Aug 2016 04:58:51 +0000
Subject: [PATCH] protocols.pc_rpc: exclude kernel_invariants from proxying.

Fixes #531.
---
 artiq/protocols/pc_rpc.py | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/artiq/protocols/pc_rpc.py b/artiq/protocols/pc_rpc.py
index 22a1b0131..ca3c356f2 100644
--- a/artiq/protocols/pc_rpc.py
+++ b/artiq/protocols/pc_rpc.py
@@ -94,6 +94,8 @@ class Client:
         in the middle of a RPC can break subsequent RPCs (from the same
         client).
     """
+    kernel_invariants = set()
+
     def __init__(self, host, port, target_name=AutoTarget, timeout=None):
         self.__socket = socket.create_connection((host, port), timeout)
 
@@ -185,6 +187,8 @@ class AsyncioClient:
     Concurrent access from different asyncio tasks is supported; all calls
     use a single lock.
     """
+    kernel_invariants = set()
+
     def __init__(self):
         self.__lock = asyncio.Lock()
         self.__reader = None
@@ -288,6 +292,8 @@ class BestEffortClient:
     :param retry: Amount of time to wait between retries when reconnecting
         in the background.
     """
+    kernel_invariants = set()
+
     def __init__(self, host, port, target_name,
                  firstcon_timeout=1.0, retry=5.0):
         self.__host = host