From: Brian Warner <warner@lothar.com>
Date: Tue, 23 Jun 2009 02:08:26 +0000 (-0700)
Subject: rrefutil: add trap_deafref utility, to make the callRemote-plus-ignore-DeadReferenceE... 
X-Git-Url: https://git.rkrishnan.org/%5B/%5D%20/uri/%22doc.html/using.html?a=commitdiff_plain;h=aa23ff91807370434b2442a52ecdbfd84a8d019d;p=tahoe-lafs%2Ftahoe-lafs.git

rrefutil: add trap_deafref utility, to make the callRemote-plus-ignore-DeadReferenceError-plug-log-other-errors pattern easier
---

diff --git a/src/allmydata/util/rrefutil.py b/src/allmydata/util/rrefutil.py
index 097e732a..8d2d6c2a 100644
--- a/src/allmydata/util/rrefutil.py
+++ b/src/allmydata/util/rrefutil.py
@@ -1,5 +1,5 @@
 
-from foolscap.api import Violation, RemoteException
+from foolscap.api import Violation, RemoteException, DeadReferenceError
 
 def add_version_to_remote_reference(rref, default):
     """I try to add a .version attribute to the given RemoteReference. I call
@@ -17,3 +17,10 @@ def add_version_to_remote_reference(rref, default):
     d.addCallbacks(_got_version, _no_get_version)
     return d
 
+def trap_and_discard(f, *errorTypes):
+    f.trap(*errorTypes)
+    pass
+
+def trap_deadref(f):
+    f.trap(DeadReferenceError)
+    pass