[libvirt] [PATCH] add handling EINTR to test example of event loop
lvroyce at linux.vnet.ibm.com
lvroyce at linux.vnet.ibm.com
Mon Jun 18 09:43:55 UTC 2012
From: lvroyce <lvroyce at linux.vnet.ibm.com>
some system call and signal will interrupt poll,
making event loop stops and fails to react events and keepalive message
from libvirt.
adding handling EINTR to poll to make it more robust
Signed-off-by: lvroyce <lvroyce at linux.vnet.ibm.com>
---
examples/domain-events/events-python/event-test.py | 8 +++++++-
1 files changed, 7 insertions(+), 1 deletions(-)
diff --git a/examples/domain-events/events-python/event-test.py b/examples/domain-events/events-python/event-test.py
index 96dc268..b446c21 100644
--- a/examples/domain-events/events-python/event-test.py
+++ b/examples/domain-events/events-python/event-test.py
@@ -188,7 +188,13 @@ class virEventLoopPure:
sleep = (next - now) / 1000.0
debug("Poll with a sleep of %d" % sleep)
- events = self.poll.poll(sleep)
+ try:
+ events = self.poll.poll(sleep)
+ except select.error, e:
+ self.runningPoll = False
+ if not e.errno in (errno.EINTR, errno.EAGAIN):
+ raise
+ return
# Dispatch any file handle events that occurred
for (fd, revents) in events:
--
1.7.7.6
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