[PATCH 3/4] qemuDomainObjWait: Report error when VM is being destroyed

[Peter Krempa]

Since we started handing the monitor EOF event inside a job any code
which uses virDomainObjWait would no longer properly abort in case when
the VM crashed during the wait.

This is because virDomainObjWait uses virDomainObjIsActive which checks
'vm->def->id' to see if the VM is still active. Unfortunately the domain
id is cleared in qemuProcessStop which is run only inside the job.

To fix this we can use the 'beingDestroyed' flag stored in the VM
private data which is set to true around the time when the condition is
signalled.

Reported-by: Pavel Hrdina <phrdina at redhat.com>
Fixes: 8c9ff9960b29d4703a99efdd1cadcf6f48799cc0
Signed-off-by: Peter Krempa <pkrempa at redhat.com>
---
 src/qemu/qemu_domain.c | 12 +++++++++++-
 1 file changed, 11 insertions(+), 1 deletion(-)

diff --git a/src/qemu/qemu_domain.c b/src/qemu/qemu_domain.c
index f68b7030c5..d3b7fcc933 100644
--- a/src/qemu/qemu_domain.c
+++ b/src/qemu/qemu_domain.c
@@ -11785,5 +11785,15 @@ qemuDomainRemoveLogs(virQEMUDriver *driver,
 int
 qemuDomainObjWait(virDomainObj *vm)
 {
-    return virDomainObjWait(vm);
+    qemuDomainObjPrivate *priv = vm->privateData;
+
+    if (virDomainObjWait(vm) < 0)
+        return -1;
+
+    if (priv->beingDestroyed) {
+        virReportError(VIR_ERR_OPERATION_FAILED, "%s", _("domain is not running"));
+        return -1;
+    }
+
+    return 0;
 }
-- 
2.37.1