Add virsh-pool support for storage pool lifecycle events
---
tools/virsh-pool.c | 184 +++++++++++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 184 insertions(+)
diff --git a/tools/virsh-pool.c b/tools/virsh-pool.c
index f9299e2..cd40749 100644
--- a/tools/virsh-pool.c
+++ b/tools/virsh-pool.c
@@ -32,6 +32,7 @@
#include "virfile.h"
#include "conf/storage_conf.h"
#include "virstring.h"
+#include "virtime.h"
#define VIRSH_COMMON_OPT_POOL_FULL \
VIRSH_COMMON_OPT_POOL(N_("pool name or uuid")) \
@@ -1889,6 +1890,183 @@ cmdPoolEdit(vshControl *ctl, const vshCmd *cmd)
return ret;
}
+/*
+ * "pool-event" command
+ */
+VIR_ENUM_DECL(virshPoolEvent)
+VIR_ENUM_IMPL(virshPoolEvent,
+ VIR_STORAGE_POOL_EVENT_LAST,
+ N_("Defined"),
+ N_("Undefined"),
+ N_("Started"),
+ N_("Stopped"),
+ N_("Refreshed"))
+
+static const char *
+virshPoolEventToString(int event)
+{
+ const char *str = virshPoolEventTypeToString(event);
+ return str ? _(str) : _("unknown");
+}
+
+struct virshPoolEventData {
+ vshControl *ctl;
+ bool loop;
+ bool timestamp;
+ int count;
+};
+typedef struct virshPoolEventData virshPoolEventData;
+
+VIR_ENUM_DECL(virshPoolEventId)
+VIR_ENUM_IMPL(virshPoolEventId,
+ VIR_STORAGE_POOL_EVENT_ID_LAST,
+ "lifecycle")
+
+static void
+vshEventLifecyclePrint(virConnectPtr conn ATTRIBUTE_UNUSED,
+ virStoragePoolPtr pool,
+ int event,
+ int detail ATTRIBUTE_UNUSED,
+ void *opaque)
+{
+ virshPoolEventData *data = opaque;
+
+ if (!data->loop && data->count)
+ return;
+
+ if (data->timestamp) {
+ char timestamp[VIR_TIME_STRING_BUFLEN];
+
+ if (virTimeStringNowRaw(timestamp) < 0)
+ timestamp[0] = '\0';
+
+ vshPrint(data->ctl, _("%s: event 'lifecycle' for storage pool %s: %s\n"),
+ timestamp,
+ virStoragePoolGetName(pool),
+ virshPoolEventToString(event));
+ } else {
+ vshPrint(data->ctl, _("event 'lifecycle' for storage pool %s: %s\n"),
+ virStoragePoolGetName(pool),
+ virshPoolEventToString(event));
+ }
+
+ data->count++;
+ if (!data->loop)
+ vshEventDone(data->ctl);
+}
+
+static const vshCmdInfo info_pool_event[] = {
+ {.name = "help",
+ .data = N_("Storage Pool Events")
+ },
+ {.name = "desc",
+ .data = N_("List event types, or wait for storage pool events to occur")
+ },
+ {.name = NULL}
+};
+
+static const vshCmdOptDef opts_pool_event[] = {
+ {.name = "storage pool",
+ .type = VSH_OT_STRING,
+ .help = N_("filter by storage pool name or uuid")
+ },
+ {.name = "event",
+ .type = VSH_OT_STRING,
+ .help = N_("which event type to wait for")
+ },
+ {.name = "loop",
+ .type = VSH_OT_BOOL,
+ .help = N_("loop until timeout or interrupt, rather than one-shot")
+ },
+ {.name = "timeout",
+ .type = VSH_OT_INT,
+ .help = N_("timeout seconds")
+ },
+ {.name = "list",
+ .type = VSH_OT_BOOL,
+ .help = N_("list valid event types")
+ },
+ {.name = "timestamp",
+ .type = VSH_OT_BOOL,
+ .help = N_("show timestamp for each printed event")
+ },
+ {.name = NULL}
+};
+
+static bool
+cmdPoolEvent(vshControl *ctl, const vshCmd *cmd)
+{
+ virStoragePoolPtr pool = NULL;
+ bool ret = false;
+ int eventId = -1;
+ int timeout = 0;
+ virshPoolEventData data;
+ const char *eventName = NULL;
+ int event;
+ virshControlPtr priv = ctl->privData;
+
+ if (vshCommandOptBool(cmd, "list")) {
+ size_t i;
+
+ for (i = 0; i < VIR_STORAGE_POOL_EVENT_ID_LAST; i++)
+ vshPrint(ctl, "%s\n", virshPoolEventIdTypeToString(i));
+ return true;
+ }
+
+ if (vshCommandOptStringReq(ctl, cmd, "event", &eventName) < 0)
+ return false;
+ if (!eventName) {
+ vshError(ctl, "%s", _("either --list or event type is required"));
+ return false;
+ }
+ if ((event = virshPoolEventIdTypeFromString(eventName)) < 0) {
+ vshError(ctl, _("unknown event type %s"), eventName);
+ return false;
+ }
+
+ data.ctl = ctl;
+ data.loop = vshCommandOptBool(cmd, "loop");
+ data.timestamp = vshCommandOptBool(cmd, "timestamp");
+ data.count = 0;
+ if (vshCommandOptTimeoutToMs(ctl, cmd, &timeout) < 0)
+ return false;
+
+ if (vshCommandOptBool(cmd, "pool"))
+ pool = virshCommandOptPool(ctl, cmd, "pool", NULL);
+ if (vshEventStart(ctl, timeout) < 0)
+ goto cleanup;
+
+ if ((eventId = virConnectStoragePoolEventRegisterAny(priv->conn, pool, event,
+ VIR_STORAGE_POOL_EVENT_CALLBACK(vshEventLifecyclePrint),
+ &data, NULL)) < 0)
+ goto cleanup;
+ switch (vshEventWait(ctl)) {
+ case VSH_EVENT_INTERRUPT:
+ vshPrint(ctl, "%s", _("event loop interrupted\n"));
+ break;
+ case VSH_EVENT_TIMEOUT:
+ vshPrint(ctl, "%s", _("event loop timed out\n"));
+ break;
+ case VSH_EVENT_DONE:
+ break;
+ default:
+ goto cleanup;
+ }
+ vshPrint(ctl, _("events received: %d\n"), data.count);
+ if (data.count)
+ ret = true;
+
+ cleanup:
+ vshEventCleanup(ctl);
+ if (eventId >= 0 &&
+ virConnectStoragePoolEventDeregisterAny(priv->conn, eventId) < 0)
+ ret = false;
+ if (pool)
+ virStoragePoolFree(pool);
+ return ret;
+}
+
+
const vshCmdDef storagePoolCmds[] = {
{.name = "find-storage-pool-sources-as",
.handler = cmdPoolDiscoverSourcesAs,
@@ -2004,5 +2182,11 @@ const vshCmdDef storagePoolCmds[] = {
.info = info_pool_uuid,
.flags = 0
},
+ {.name = "pool-event",
+ .handler = cmdPoolEvent,
+ .opts = opts_pool_event,
+ .info = info_pool_event,
+ .flags = 0
+ },
{.name = NULL}
};
--
2.5.5
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