[libvirt] [PATCH RFC] lib: provide error message in new blockjob event

Nikolay Shirokovskiy nshirokovskiy at virtuozzo.com
Tue Oct 31 12:06:36 UTC 2017


If block job is completed with error qemu additionally provides error message.
This patch introduces new event VIR_DOMAIN_EVENT_ID_BLOCK_JOB_3 to pass error
message to client.

---

The patch is applied on top of [1] patch series (not yet pushed though). Looks
like this patch consists of too much boilerplate code only to pass extra string
parameter for blockjob event but looks like there is no other way now.
Especially ugly looking is adding event3 in src/qemu/qemu_blockjob.c.

Actually there is old RFC for providing error message for blockjob event [2].
Hope this one gain more attention.

[1] https://www.redhat.com/archives/libvir-list/2017-October/msg01292.html
[2] https://www.redhat.com/archives/libvir-list/2016-December/msg00093.html

 daemon/remote.c                     | 47 ++++++++++++++++++++++++++++++++
 examples/object-events/event-test.c | 21 +++++++++++++++
 include/libvirt/libvirt-domain.h    | 23 ++++++++++++++++
 src/conf/domain_event.c             | 54 ++++++++++++++++++++++++++++++++-----
 src/conf/domain_event.h             | 13 +++++++++
 src/libvirt_private.syms            |  2 ++
 src/qemu/qemu_blockjob.c            |  9 +++++--
 src/qemu/qemu_blockjob.h            |  3 ++-
 src/qemu/qemu_domain.h              |  1 +
 src/qemu/qemu_driver.c              | 10 ++++---
 src/qemu/qemu_process.c             | 12 ++++++---
 src/remote/remote_driver.c          | 34 +++++++++++++++++++++++
 src/remote/remote_protocol.x        | 17 +++++++++++-
 src/remote_protocol-structs         |  9 +++++++
 tools/virsh-domain.c                | 25 +++++++++++++++++
 15 files changed, 264 insertions(+), 16 deletions(-)

diff --git a/daemon/remote.c b/daemon/remote.c
index 3f7d2d3..a5b87e6 100644
--- a/daemon/remote.c
+++ b/daemon/remote.c
@@ -1342,6 +1342,52 @@ remoteRelayDomainEventBlockThreshold(virConnectPtr conn,
 }
 
 
+static int
+remoteRelayDomainEventBlockJob3(virConnectPtr conn,
+                                virDomainPtr dom,
+                                const char *dst,
+                                int type,
+                                int status,
+                                const char *error,
+                                void *opaque)
+{
+    daemonClientEventCallbackPtr callback = opaque;
+    remote_domain_event_block_job_3_msg data;
+
+    if (callback->callbackID < 0 ||
+        !remoteRelayDomainEventCheckACL(callback->client, conn, dom))
+        return -1;
+
+    VIR_DEBUG("Relaying domain block job 3 event %s %d %s %i, %i, %s, callback %d",
+              dom->name, dom->id, dst, type, status, NULLSTR(error),
+              callback->callbackID);
+
+    /* build return data */
+    memset(&data, 0, sizeof(data));
+    data.callbackID = callback->callbackID;
+    if (VIR_STRDUP(data.dst, dst) < 0)
+        return -1;
+    if (error) {
+        if (VIR_ALLOC(data.error) < 0 ||
+            VIR_STRDUP(*(data.error), error) < 0)
+            goto error;
+    }
+    data.type = type;
+    data.status = status;
+    make_nonnull_domain(&data.dom, dom);
+
+    remoteDispatchObjectEventSend(callback->client, remoteProgram,
+                                  REMOTE_PROC_DOMAIN_EVENT_BLOCK_JOB_3,
+                                  (xdrproc_t)xdr_remote_domain_event_block_job_3_msg, &data);
+    return 0;
+
+ error:
+    VIR_FREE(data.dst);
+    VIR_FREE(data.error);
+
+    return -1;
+}
+
 static virConnectDomainEventGenericCallback domainEventCallbacks[] = {
     VIR_DOMAIN_EVENT_CALLBACK(remoteRelayDomainEventLifecycle),
     VIR_DOMAIN_EVENT_CALLBACK(remoteRelayDomainEventReboot),
@@ -1368,6 +1414,7 @@ static virConnectDomainEventGenericCallback domainEventCallbacks[] = {
     VIR_DOMAIN_EVENT_CALLBACK(remoteRelayDomainEventDeviceRemovalFailed),
     VIR_DOMAIN_EVENT_CALLBACK(remoteRelayDomainEventMetadataChange),
     VIR_DOMAIN_EVENT_CALLBACK(remoteRelayDomainEventBlockThreshold),
+    VIR_DOMAIN_EVENT_CALLBACK(remoteRelayDomainEventBlockJob3),
 };
 
 verify(ARRAY_CARDINALITY(domainEventCallbacks) == VIR_DOMAIN_EVENT_ID_LAST);
diff --git a/examples/object-events/event-test.c b/examples/object-events/event-test.c
index a144638..623dbd6 100644
--- a/examples/object-events/event-test.c
+++ b/examples/object-events/event-test.c
@@ -936,6 +936,26 @@ myDomainEventBlockJobCallback(virConnectPtr conn ATTRIBUTE_UNUSED,
 
 
 static int
+myDomainEventBlockJob3Callback(virConnectPtr conn ATTRIBUTE_UNUSED,
+                               virDomainPtr dom,
+                               const char *disk,
+                               int type,
+                               int status,
+                               void *opaque,
+                               const char *error)
+{
+    const char *eventName = opaque;
+
+    printf("%s EVENT: Domain %s(%d) block job callback '%s' disk '%s', "
+           "type '%s' status '%s' error '%s'",
+           __func__, virDomainGetName(dom), virDomainGetID(dom), eventName,
+           disk, blockJobTypeToStr(type), blockJobStatusToStr(status),
+           NULLSTR(error));
+    return 0;
+}
+
+
+static int
 myDomainEventBlockThresholdCallback(virConnectPtr conn ATTRIBUTE_UNUSED,
                                     virDomainPtr dom,
                                     const char *dev,
@@ -1082,6 +1102,7 @@ struct domainEventData domainEvents[] = {
     DOMAIN_EVENT(VIR_DOMAIN_EVENT_ID_DEVICE_REMOVAL_FAILED, myDomainEventDeviceRemovalFailedCallback),
     DOMAIN_EVENT(VIR_DOMAIN_EVENT_ID_METADATA_CHANGE, myDomainEventMetadataChangeCallback),
     DOMAIN_EVENT(VIR_DOMAIN_EVENT_ID_BLOCK_THRESHOLD, myDomainEventBlockThresholdCallback),
+    DOMAIN_EVENT(VIR_DOMAIN_EVENT_ID_BLOCK_JOB_3, myDomainEventBlockJob3Callback),
 };
 
 struct storagePoolEventData {
diff --git a/include/libvirt/libvirt-domain.h b/include/libvirt/libvirt-domain.h
index 4048acf..4f942da 100644
--- a/include/libvirt/libvirt-domain.h
+++ b/include/libvirt/libvirt-domain.h
@@ -4363,6 +4363,28 @@ typedef void (*virConnectDomainEventBlockThresholdCallback)(virConnectPtr conn,
                                                             unsigned long long excess,
                                                             void *opaque);
 
+
+/**
+ * virConnectDomainEventBlockJob3Callback:
+ * @conn: connection object
+ * @dom: domain on which the event occurred
+ * @disk: name associated with the affected disk (filename or target
+ *        device, depending on how the callback was registered)
+ * @type: type of block job (virDomainBlockJobType)
+ * @status: status of the operation (virConnectDomainEventBlockJobStatus)
+ * @error: error string
+ * @opaque: application specified data
+ *
+ */
+
+
+typedef void (*virConnectDomainEventBlockJob3Callback)(virConnectPtr conn,
+                                                       virDomainPtr dom,
+                                                       const char *disk,
+                                                       int type,
+                                                       int status,
+                                                       const char *error,
+                                                       void *opaque);
 /**
  * VIR_DOMAIN_EVENT_CALLBACK:
  *
@@ -4405,6 +4427,7 @@ typedef enum {
     VIR_DOMAIN_EVENT_ID_DEVICE_REMOVAL_FAILED = 22, /* virConnectDomainEventDeviceRemovalFailedCallback */
     VIR_DOMAIN_EVENT_ID_METADATA_CHANGE = 23, /* virConnectDomainEventMetadataChangeCallback */
     VIR_DOMAIN_EVENT_ID_BLOCK_THRESHOLD = 24, /* virConnectDomainEventBlockThresholdCallback */
+    VIR_DOMAIN_EVENT_ID_BLOCK_JOB_3 = 25,    /* virConnectDomainEventBlockJob3Callback */
 
 # ifdef VIR_ENUM_SENTINELS
     VIR_DOMAIN_EVENT_ID_LAST
diff --git a/src/conf/domain_event.c b/src/conf/domain_event.c
index 7baccd5..2ea170d 100644
--- a/src/conf/domain_event.c
+++ b/src/conf/domain_event.c
@@ -145,6 +145,7 @@ struct _virDomainEventBlockJob {
     virDomainEvent parent;
 
     char *disk; /* path or dst, depending on event id */
+    char *error;
     int type;
     int status;
 };
@@ -501,6 +502,7 @@ virDomainEventBlockJobDispose(void *obj)
     VIR_DEBUG("obj=%p", event);
 
     VIR_FREE(event->disk);
+    VIR_FREE(event->error);
 }
 
 static void
@@ -995,7 +997,8 @@ virDomainEventBlockJobNew(int event,
                           unsigned char *uuid,
                           const char *disk,
                           int type,
-                          int status)
+                          int status,
+                          const char *error)
 {
     virDomainEventBlockJobPtr ev;
 
@@ -1007,7 +1010,8 @@ virDomainEventBlockJobNew(int event,
                                  id, name, uuid)))
         return NULL;
 
-    if (VIR_STRDUP(ev->disk, disk) < 0) {
+    if (VIR_STRDUP(ev->disk, disk) < 0 ||
+        VIR_STRDUP(ev->error, error) < 0) {
         virObjectUnref(ev);
         return NULL;
     }
@@ -1025,7 +1029,7 @@ virDomainEventBlockJobNewFromObj(virDomainObjPtr obj,
 {
     return virDomainEventBlockJobNew(VIR_DOMAIN_EVENT_ID_BLOCK_JOB,
                                      obj->def->id, obj->def->name,
-                                     obj->def->uuid, path, type, status);
+                                     obj->def->uuid, path, type, status, NULL);
 }
 
 virObjectEventPtr
@@ -1036,7 +1040,7 @@ virDomainEventBlockJobNewFromDom(virDomainPtr dom,
 {
     return virDomainEventBlockJobNew(VIR_DOMAIN_EVENT_ID_BLOCK_JOB,
                                      dom->id, dom->name, dom->uuid,
-                                     path, type, status);
+                                     path, type, status, NULL);
 }
 
 virObjectEventPtr
@@ -1047,7 +1051,7 @@ virDomainEventBlockJob2NewFromObj(virDomainObjPtr obj,
 {
     return virDomainEventBlockJobNew(VIR_DOMAIN_EVENT_ID_BLOCK_JOB_2,
                                      obj->def->id, obj->def->name,
-                                     obj->def->uuid, dst, type, status);
+                                     obj->def->uuid, dst, type, status, NULL);
 }
 
 virObjectEventPtr
@@ -1058,7 +1062,31 @@ virDomainEventBlockJob2NewFromDom(virDomainPtr dom,
 {
     return virDomainEventBlockJobNew(VIR_DOMAIN_EVENT_ID_BLOCK_JOB_2,
                                      dom->id, dom->name, dom->uuid,
-                                     dst, type, status);
+                                     dst, type, status, NULL);
+}
+
+virObjectEventPtr
+virDomainEventBlockJob3NewFromObj(virDomainObjPtr obj,
+                                  const char *dst,
+                                  int type,
+                                  int status,
+                                  const char *error)
+{
+    return virDomainEventBlockJobNew(VIR_DOMAIN_EVENT_ID_BLOCK_JOB_3,
+                                     obj->def->id, obj->def->name,
+                                     obj->def->uuid, dst, type, status, error);
+}
+
+virObjectEventPtr
+virDomainEventBlockJob3NewFromDom(virDomainPtr dom,
+                                  const char *dst,
+                                  int type,
+                                  int status,
+                                  const char *error)
+{
+    return virDomainEventBlockJobNew(VIR_DOMAIN_EVENT_ID_BLOCK_JOB_3,
+                                     dom->id, dom->name, dom->uuid,
+                                     dst, type, status, error);
 }
 
 virObjectEventPtr
@@ -1871,6 +1899,20 @@ virDomainEventDispatchDefaultFunc(virConnectPtr conn,
             goto cleanup;
         }
 
+    case VIR_DOMAIN_EVENT_ID_BLOCK_JOB_3:
+        {
+            virDomainEventBlockJobPtr blockJobEvent;
+
+            blockJobEvent = (virDomainEventBlockJobPtr)event;
+            ((virConnectDomainEventBlockJob3Callback)cb)(conn, dom,
+                                                        blockJobEvent->disk,
+                                                        blockJobEvent->type,
+                                                        blockJobEvent->status,
+                                                        blockJobEvent->error,
+                                                        cbopaque);
+            goto cleanup;
+        }
+
     case VIR_DOMAIN_EVENT_ID_DISK_CHANGE:
         {
             virDomainEventDiskChangePtr diskChangeEvent;
diff --git a/src/conf/domain_event.h b/src/conf/domain_event.h
index 3992a29..1a0f16b 100644
--- a/src/conf/domain_event.h
+++ b/src/conf/domain_event.h
@@ -138,6 +138,19 @@ virDomainEventBlockJob2NewFromDom(virDomainPtr dom,
                                   int status);
 
 virObjectEventPtr
+virDomainEventBlockJob3NewFromObj(virDomainObjPtr obj,
+                                  const char *dst,
+                                  int type,
+                                  int status,
+                                  const char *error);
+virObjectEventPtr
+virDomainEventBlockJob3NewFromDom(virDomainPtr dom,
+                                  const char *dst,
+                                  int type,
+                                  int status,
+                                  const char *error);
+
+virObjectEventPtr
 virDomainEventDiskChangeNewFromObj(virDomainObjPtr obj,
                                    const char *oldSrcPath,
                                    const char *newSrcPath,
diff --git a/src/libvirt_private.syms b/src/libvirt_private.syms
index 448d962..5f0a212 100644
--- a/src/libvirt_private.syms
+++ b/src/libvirt_private.syms
@@ -562,6 +562,8 @@ virDomainEventBalloonChangeNewFromDom;
 virDomainEventBalloonChangeNewFromObj;
 virDomainEventBlockJob2NewFromDom;
 virDomainEventBlockJob2NewFromObj;
+virDomainEventBlockJob3NewFromDom;
+virDomainEventBlockJob3NewFromObj;
 virDomainEventBlockJobNewFromDom;
 virDomainEventBlockJobNewFromObj;
 virDomainEventBlockThresholdNewFromDom;
diff --git a/src/qemu/qemu_blockjob.c b/src/qemu/qemu_blockjob.c
index 0b1616a..5266823 100644
--- a/src/qemu/qemu_blockjob.c
+++ b/src/qemu/qemu_blockjob.c
@@ -70,7 +70,8 @@ qemuBlockJobUpdate(virQEMUDriverPtr driver,
     if (status != -1) {
         qemuBlockJobEventProcess(driver, vm, disk, asyncJob,
                                  diskPriv->blockJobType,
-                                 diskPriv->blockJobStatus);
+                                 diskPriv->blockJobStatus,
+                                 diskPriv->blockJobError);
         diskPriv->blockJobStatus = -1;
         if (error)
             VIR_STEAL_PTR(*error, diskPriv->blockJobError);
@@ -100,10 +101,12 @@ qemuBlockJobEventProcess(virQEMUDriverPtr driver,
                          virDomainDiskDefPtr disk,
                          qemuDomainAsyncJob asyncJob,
                          int type,
-                         int status)
+                         int status,
+                         const char *error)
 {
     virObjectEventPtr event = NULL;
     virObjectEventPtr event2 = NULL;
+    virObjectEventPtr event3 = NULL;
     const char *path;
     virQEMUDriverConfigPtr cfg = virQEMUDriverGetConfig(driver);
     virDomainDiskDefPtr persistDisk = NULL;
@@ -123,6 +126,7 @@ qemuBlockJobEventProcess(virQEMUDriverPtr driver,
     path = virDomainDiskGetSource(disk);
     event = virDomainEventBlockJobNewFromObj(vm, path, type, status);
     event2 = virDomainEventBlockJob2NewFromObj(vm, disk->dst, type, status);
+    event3 = virDomainEventBlockJob3NewFromObj(vm, disk->dst, type, status, error);
 
     /* If we completed a block pull or commit, then update the XML
      * to match.  */
@@ -212,6 +216,7 @@ qemuBlockJobEventProcess(virQEMUDriverPtr driver,
 
     qemuDomainEventQueue(driver, event);
     qemuDomainEventQueue(driver, event2);
+    qemuDomainEventQueue(driver, event3);
 
     virObjectUnref(cfg);
 }
diff --git a/src/qemu/qemu_blockjob.h b/src/qemu/qemu_blockjob.h
index e71d691..18bcaaa 100644
--- a/src/qemu/qemu_blockjob.h
+++ b/src/qemu/qemu_blockjob.h
@@ -36,7 +36,8 @@ void qemuBlockJobEventProcess(virQEMUDriverPtr driver,
                               virDomainDiskDefPtr disk,
                               qemuDomainAsyncJob asyncJob,
                               int type,
-                              int status);
+                              int status,
+                              const char *error);
 
 void qemuBlockJobSyncBegin(virDomainDiskDefPtr disk);
 void qemuBlockJobSyncEnd(virQEMUDriverPtr driver,
diff --git a/src/qemu/qemu_domain.h b/src/qemu/qemu_domain.h
index 735e810..99a71b3 100644
--- a/src/qemu/qemu_domain.h
+++ b/src/qemu/qemu_domain.h
@@ -457,6 +457,7 @@ struct qemuProcessEvent {
     int action;
     int status;
     void *data;
+    char *error;
 };
 
 typedef struct _qemuDomainLogContext qemuDomainLogContext;
diff --git a/src/qemu/qemu_driver.c b/src/qemu/qemu_driver.c
index 725b46a..c6626bb 100644
--- a/src/qemu/qemu_driver.c
+++ b/src/qemu/qemu_driver.c
@@ -4715,7 +4715,8 @@ processBlockJobEvent(virQEMUDriverPtr driver,
                      virDomainObjPtr vm,
                      char *diskAlias,
                      int type,
-                     int status)
+                     int status,
+                     char *error)
 {
     virDomainDiskDefPtr disk;
 
@@ -4728,12 +4729,14 @@ processBlockJobEvent(virQEMUDriverPtr driver,
     }
 
     if ((disk = qemuProcessFindDomainDiskByAlias(vm, diskAlias)))
-        qemuBlockJobEventProcess(driver, vm, disk, QEMU_ASYNC_JOB_NONE, type, status);
+        qemuBlockJobEventProcess(driver, vm, disk, QEMU_ASYNC_JOB_NONE,
+                                 type, status, error);
 
  endjob:
     qemuDomainObjEndJob(driver, vm);
  cleanup:
     VIR_FREE(diskAlias);
+    VIR_FREE(error);
 }
 
 
@@ -4815,7 +4818,8 @@ static void qemuProcessEventHandler(void *data, void *opaque)
         processBlockJobEvent(driver, vm,
                              processEvent->data,
                              processEvent->action,
-                             processEvent->status);
+                             processEvent->status,
+                             processEvent->error);
         break;
     case QEMU_PROCESS_EVENT_MONITOR_EOF:
         processMonitorEOFEvent(driver, vm);
diff --git a/src/qemu/qemu_process.c b/src/qemu/qemu_process.c
index 4bfad5d..6a3d9bc 100644
--- a/src/qemu/qemu_process.c
+++ b/src/qemu/qemu_process.c
@@ -1008,6 +1008,7 @@ qemuProcessHandleBlockJob(qemuMonitorPtr mon ATTRIBUTE_UNUSED,
     virDomainDiskDefPtr disk;
     qemuDomainDiskPrivatePtr diskPriv;
     char *data = NULL;
+    char *errorCopy = NULL;
 
     virObjectLock(vm);
 
@@ -1018,13 +1019,14 @@ qemuProcessHandleBlockJob(qemuMonitorPtr mon ATTRIBUTE_UNUSED,
         goto error;
     diskPriv = QEMU_DOMAIN_DISK_PRIVATE(disk);
 
+    ignore_value(VIR_STRDUP_QUIET(errorCopy, error));
+
     if (diskPriv->blockJobSync) {
         /* We have a SYNC API waiting for this event, dispatch it back */
         diskPriv->blockJobType = type;
         diskPriv->blockJobStatus = status;
         VIR_FREE(diskPriv->blockJobError);
-        if (error && VIR_STRDUP_QUIET(diskPriv->blockJobError, error) < 0)
-            VIR_WARN("Can not pass error message further: %s", error);
+        VIR_STEAL_PTR(diskPriv->blockJobError, errorCopy);
         virDomainObjBroadcast(vm);
     } else {
         /* there is no waiting SYNC API, dispatch the update to a thread */
@@ -1038,6 +1040,7 @@ qemuProcessHandleBlockJob(qemuMonitorPtr mon ATTRIBUTE_UNUSED,
         processEvent->vm = vm;
         processEvent->action = type;
         processEvent->status = status;
+        VIR_STEAL_PTR(processEvent->error, errorCopy);
 
         virObjectRef(vm);
         if (virThreadPoolSendJob(driver->workerPool, 0, processEvent) < 0) {
@@ -1047,11 +1050,14 @@ qemuProcessHandleBlockJob(qemuMonitorPtr mon ATTRIBUTE_UNUSED,
     }
 
  cleanup:
+    VIR_FREE(errorCopy);
     virObjectUnlock(vm);
     return 0;
  error:
-    if (processEvent)
+    if (processEvent) {
         VIR_FREE(processEvent->data);
+        VIR_FREE(processEvent->error);
+    }
     VIR_FREE(processEvent);
     goto cleanup;
 }
diff --git a/src/remote/remote_driver.c b/src/remote/remote_driver.c
index 06719bb..c73461d 100644
--- a/src/remote/remote_driver.c
+++ b/src/remote/remote_driver.c
@@ -405,6 +405,11 @@ remoteConnectNotifyEventConnectionClosed(virNetClientProgramPtr prog ATTRIBUTE_U
                                          virNetClientPtr client ATTRIBUTE_UNUSED,
                                          void *evdata, void *opaque);
 
+static void
+remoteDomainBuildEventBlockJob3(virNetClientProgramPtr prog,
+                                virNetClientPtr client,
+                                void *evdata, void *opaque);
+
 static virNetClientProgramEvent remoteEvents[] = {
     { REMOTE_PROC_DOMAIN_EVENT_LIFECYCLE,
       remoteDomainBuildEventLifecycle,
@@ -611,6 +616,10 @@ static virNetClientProgramEvent remoteEvents[] = {
       remoteDomainBuildEventBlockThreshold,
       sizeof(remote_domain_event_block_threshold_msg),
       (xdrproc_t)xdr_remote_domain_event_block_threshold_msg },
+    { REMOTE_PROC_DOMAIN_EVENT_BLOCK_JOB_3,
+      remoteDomainBuildEventBlockJob3,
+      sizeof(remote_domain_event_block_job_3_msg),
+      (xdrproc_t)xdr_remote_domain_event_block_job_3_msg },
 };
 
 static void
@@ -5610,6 +5619,31 @@ remoteDomainBuildEventBlockThreshold(virNetClientProgramPtr prog ATTRIBUTE_UNUSE
 }
 
 
+static void
+remoteDomainBuildEventBlockJob3(virNetClientProgramPtr prog ATTRIBUTE_UNUSED,
+                                virNetClientPtr client ATTRIBUTE_UNUSED,
+                                void *evdata, void *opaque)
+{
+    virConnectPtr conn = opaque;
+    remote_domain_event_block_job_3_msg *msg = evdata;
+    struct private_data *priv = conn->privateData;
+    virDomainPtr dom;
+    virObjectEventPtr event = NULL;
+
+    dom = get_nonnull_domain(conn, msg->dom);
+    if (!dom)
+        return;
+
+    event = virDomainEventBlockJob3NewFromDom(dom, msg->dst, msg->type,
+                                              msg->status,
+                                              msg->error ? *msg->error : NULL);
+
+    virObjectUnref(dom);
+
+    remoteEventQueue(priv, event, msg->callbackID);
+}
+
+
 static int
 remoteStreamSend(virStreamPtr st,
                  const char *data,
diff --git a/src/remote/remote_protocol.x b/src/remote/remote_protocol.x
index 0aed252..371b640 100644
--- a/src/remote/remote_protocol.x
+++ b/src/remote/remote_protocol.x
@@ -3095,6 +3095,15 @@ struct remote_domain_event_block_job_2_msg {
     int status;
 };
 
+struct remote_domain_event_block_job_3_msg {
+    int callbackID;
+    remote_nonnull_domain dom;
+    remote_nonnull_string dst;
+    remote_string error;
+    int type;
+    int status;
+};
+
 struct remote_domain_event_block_threshold_msg {
     int callbackID;
     remote_nonnull_domain dom;
@@ -6120,5 +6129,11 @@ enum remote_procedure {
      * @generate: both
      * @acl: domain:write
      */
-    REMOTE_PROC_DOMAIN_SET_LIFECYCLE_ACTION = 390
+    REMOTE_PROC_DOMAIN_SET_LIFECYCLE_ACTION = 390,
+
+    /**
+     * @generate: none
+     * @acl: none
+     */
+    REMOTE_PROC_DOMAIN_EVENT_BLOCK_JOB_3 = 391
 };
diff --git a/src/remote_protocol-structs b/src/remote_protocol-structs
index 59b0ace..b8f4065 100644
--- a/src/remote_protocol-structs
+++ b/src/remote_protocol-structs
@@ -2535,6 +2535,14 @@ struct remote_domain_event_block_job_2_msg {
         int                        type;
         int                        status;
 };
+struct remote_domain_event_block_job_3_msg {
+        int                        callbackID;
+        remote_nonnull_domain      dom;
+        remote_nonnull_string      dst;
+        remote_string              error;
+        int                        type;
+        int                        status;
+};
 struct remote_domain_event_block_threshold_msg {
         int                        callbackID;
         remote_nonnull_domain      dom;
@@ -3262,4 +3270,5 @@ enum remote_procedure {
         REMOTE_PROC_DOMAIN_MANAGED_SAVE_GET_XML_DESC = 388,
         REMOTE_PROC_DOMAIN_MANAGED_SAVE_DEFINE_XML = 389,
         REMOTE_PROC_DOMAIN_SET_LIFECYCLE_ACTION = 390,
+        REMOTE_PROC_DOMAIN_EVENT_BLOCK_JOB_3 = 391,
 };
diff --git a/tools/virsh-domain.c b/tools/virsh-domain.c
index 1e33e82..6377c91 100644
--- a/tools/virsh-domain.c
+++ b/tools/virsh-domain.c
@@ -13253,6 +13253,29 @@ virshEventBlockThresholdPrint(virConnectPtr conn ATTRIBUTE_UNUSED,
 }
 
 
+static void
+virshEventBlockJob3Print(virConnectPtr conn ATTRIBUTE_UNUSED,
+                         virDomainPtr dom,
+                         const char *disk,
+                         int type,
+                         int status,
+                         const char *error,
+                         void *opaque)
+{
+    virBuffer buf = VIR_BUFFER_INITIALIZER;
+
+    virBufferAsprintf(&buf, _("event '%s' for domain %s: %s for %s %s, "
+                              "error: %s\n"),
+                      ((virshDomEventData *) opaque)->cb->name,
+                      virDomainGetName(dom),
+                      virshDomainBlockJobToString(type),
+                      disk,
+                      virshDomainBlockJobStatusToString(status),
+                      NULLSTR(error));
+    virshEventPrint(opaque, &buf);
+}
+
+
 static vshEventCallback vshEventCallbacks[] = {
     { "lifecycle",
       VIR_DOMAIN_EVENT_CALLBACK(virshEventLifecyclePrint), },
@@ -13302,6 +13325,8 @@ static vshEventCallback vshEventCallbacks[] = {
       VIR_DOMAIN_EVENT_CALLBACK(virshEventMetadataChangePrint), },
     { "block-threshold",
       VIR_DOMAIN_EVENT_CALLBACK(virshEventBlockThresholdPrint), },
+    { "block-job-3",
+      VIR_DOMAIN_EVENT_CALLBACK(virshEventBlockJob3Print), },
 };
 verify(VIR_DOMAIN_EVENT_ID_LAST == ARRAY_CARDINALITY(vshEventCallbacks));
 
-- 
1.8.3.1




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