From: David Stainton <dstainton415@gmail.com>
Date: Thu, 28 Jan 2016 17:43:01 +0000 (+0000)
Subject: Daira's fix to the hook mixin
X-Git-Url: https://git.rkrishnan.org/vdrive/%22file:?a=commitdiff_plain;h=a3f727cb88d9dc5d8718d342079619e38e1b2944;p=tahoe-lafs%2Ftahoe-lafs.git

Daira's fix to the hook mixin
---

diff --git a/src/allmydata/util/deferredutil.py b/src/allmydata/util/deferredutil.py
index 34aa3777..9a212378 100644
--- a/src/allmydata/util/deferredutil.py
+++ b/src/allmydata/util/deferredutil.py
@@ -101,7 +101,7 @@ class HookMixin:
         self._hooks[name] = (d, ignore_count)
         return d
 
-    def _call_hook(self, res, name):
+    def _call_hook(self, res, name, async=False):
         """
         Called to trigger the hook, with argument 'res'. This is a no-op if
         the hook is unset. If the hook's ignore_count is positive, it will be
@@ -124,7 +124,10 @@ class HookMixin:
             self._hooks[name] = (d, ignore_count - 1)
         else:
             self._hooks[name] = None
-            _with_log(eventually_callback(d), res)
+            if async:
+                _with_log(eventually_callback(d), res)
+            else:
+                _with_log(d.callback, res)
         return res
 
     def _log(self, msg):