virsh: Add event name completion to 'event' command

Signed-off-by: Lin Ma <lma@suse.com>
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>

tools/virsh-completer.c

@@ -23,6 +23,7 @@
 #include <config.h>
 
 #include "virsh-completer.h"
+#include "virsh-domain.h"
 #include "virsh.h"
 #include "virsh-pool.h"
 #include "virsh-util.h"
@@ -676,3 +677,29 @@ virshSecretEventNameCompleter(vshControl *ctl ATTRIBUTE_UNUSED,
     virStringListFree(ret);
     return NULL;
 }
+
+
+char **
+virshDomainEventNameCompleter(vshControl *ctl ATTRIBUTE_UNUSED,
+                              const vshCmd *cmd ATTRIBUTE_UNUSED,
+                              unsigned int flags)
+{
+    size_t i = 0;
+    char **ret = NULL;
+
+    virCheckFlags(0, NULL);
+
+    if (VIR_ALLOC_N(ret, VIR_DOMAIN_EVENT_ID_LAST + 1) < 0)
+        goto error;
+
+    for (i = 0; i < VIR_DOMAIN_EVENT_ID_LAST; i++) {
+        if (VIR_STRDUP(ret[i], virshDomainEventCallbacks[i].name) < 0)
+            goto error;
+    }
+
+    return ret;
+
+ error:
+    virStringListFree(ret);
+    return NULL;
+}

tools/virsh-completer.h

@@ -82,4 +82,8 @@ char ** virshSecretEventNameCompleter(vshControl *ctl,
                                       const vshCmd *cmd,
                                       unsigned int flags);
 
+char ** virshDomainEventNameCompleter(vshControl *ctl,
+                                      const vshCmd *cmd,
+                                      unsigned int flags);
+
 #endif

tools/virsh-domain.c

@@ -13339,6 +13339,7 @@ static const vshCmdOptDef opts_event[] = {
                                       0),
     {.name = "event",
      .type = VSH_OT_STRING,
+     .completer = virshDomainEventNameCompleter,
      .help = N_("which event type to wait for")
     },
     {.name = "all",