Add support for another explicit IO error eventv0.8.1

This introduces a new event type

   VIR_DOMAIN_EVENT_ID_IO_ERROR_REASON

This event is the same as the previous VIR_DOMAIN_ID_IO_ERROR
event, but also includes a string describing the cause of
the event.

Thus there is a new callback definition for this event type

typedef void (*virConnectDomainEventIOErrorReasonCallback)(virConnectPtr conn,
                                                           virDomainPtr dom,
                                                           const char *srcPath,
                                                           const char *devAlias,
                                                           int action,
                                                           const char *reason,
                                                           void *opaque);

This is currently wired up to the QEMU block IO error events

* daemon/remote.c: Dispatch IO error events to client
* examples/domain-events/events-c/event-test.c: Watch for
  IO error events
* include/libvirt/libvirt.h.in: Define new IO error event ID
  and callback signature
* src/conf/domain_event.c, src/conf/domain_event.h,
  src/libvirt_private.syms: Extend API to handle IO error events
* src/qemu/qemu_driver.c: Connect to the QEMU monitor event
  for block IO errors and emit a libvirt IO error event
* src/remote/remote_driver.c: Receive and dispatch IO error
  events to application
* src/remote/remote_protocol.x: Wire protocol definition for
  IO error events
* src/qemu/qemu_monitor.c, src/qemu/qemu_monitor.h,
  src/qemu/qemu_monitor_json.c: Watch for BLOCK_IO_ERROR event
  from QEMU monitor

1 files changed, 13 insertions, 1 deletions

diff --git a/libvirt-override-virConnect.py b/libvirt-override-virConnect.py
index cb38e3f..df39b79 100644
--- a/libvirt-override-virConnect.py
+++ b/libvirt-override-virConnect.py
@@ -94,7 +94,19 @@
             cb = cbData["cb"]
             opaque = cbData["opaque"]
 
-            cb(self, virDomain(self, _obj=dom), opaque)
+            cb(self, virDomain(self, _obj=dom), srcPath, devAlias, opaque)
+            return 0
+        except AttributeError:
+            pass
+
+    def dispatchDomainEventIOErrorReasonCallback(self, dom, srcPath, devAlias, action, reason, cbData):
+        """Dispatches events to python user domain IO error event callbacks
+        """
+        try:
+            cb = cbData["cb"]
+            opaque = cbData["opaque"]
+
+            cb(self, virDomain(self, _obj=dom), srcPath, devAlias, action, reason, opaque)
             return 0
         except AttributeError:
             pass