[libvirt] [PATCH] Attempt to detect cdrom change failures
If a 'change' or 'eject' qemu monitor command fails,
an error message is printed to the monitor of the
form "device {not found, is locked, is not
removable"}. This is really the only indication we
have that the command errored out, so scrape the
monitor reply for "\ndevice " and fail if it is
found.
Thanks,
Cole
commit 8caba367b62b4fb961722cd641d8172bb441b84e
Author: Cole Robinson <crobinso(a)dhcp-100-19-219.bos.redhat.com>
Date: Fri Aug 22 16:35:24 2008 -0400
Scrape cdrom attach/eject monitor output to try and determine failure.
diff --git a/src/qemu_driver.c b/src/qemu_driver.c
index 9a26375..05e7402 100644
--- a/src/qemu_driver.c
+++ b/src/qemu_driver.c
@@ -2994,6 +2994,19 @@ static int qemudDomainChangeCDROM(virDomainPtr dom,
VIR_FREE(newsrc);
return -1;
}
+
+ /* If the command failed qemu prints:
+ * device not found, device is locked ...
+ * No message is printed on success it seems */
+ DEBUG ("cdrom change reply: %s", reply);
+ if (strstr(reply, "\ndevice ")) {
+ qemudReportError (dom->conn, dom, NULL, VIR_ERR_OPERATION_FAILED,
+ "%s", _("changing cdrom media failed));
+ VIR_FREE(reply);
+ VIR_FREE(cmd);
+ return -1;
+ }
+
VIR_FREE(reply);
VIR_FREE(cmd);