On 06/13/2011 01:26 PM, Stefan Berger wrote:
The below patch decreases the response time of libvirt to errors reported by Qemu upon startup by checking whether the qemu process is still alive while polling for the local socket to show up.
@@ -274,7 +274,8 @@ qemuMonitorOpenUnix(const char *monitor) if (ret == 0) break;
- if (errno == ENOENT || errno == ECONNREFUSED) { + if ((errno == ENOENT || errno == ECONNREFUSED) && + virKillProcess(cpid, 0) == 0) { /* ENOENT : Socket may not have shown up yet * ECONNREFUSED : Leftover socket hasn't been removed yet */ continue;
Calling virKillProcess changes errno; in fact, errno will probably be ESRCH if virKillProcess ended up being called but the process is not alive. But I guess that is just as good a message, and can only happen on ENOENT or ECONNREFUSED in the first place, so it looks okay to me. ACK. -- Eric Blake eblake@redhat.com +1-801-349-2682 Libvirt virtualization library http://libvirt.org