@@ -18,6 +18,7 @@
#include "sysemu.h"
#include "block.h"
#include "qemu_socket.h"
+#include "qemu-objects.h"
//#define DEBUG_MIGRATION
@@ -149,29 +150,71 @@ void do_migrate_set_downtime(Monitor *mon, const QDict *qdict)
max_downtime = (uint64_t)d;
}
-void do_info_migrate(Monitor *mon)
+void migration_user_print(Monitor *mon, const QObject *data)
+{
+ QDict *qdict;
+
+ qdict = qobject_to_qdict(data);
+
+ monitor_printf(mon, "Migration status: %s\n", qdict_get_str(qdict, "status"));
+
+ if (qdict_haskey(qdict, "ram")) {
+ QDict *qdict_ram = qobject_to_qdict(qdict_get(qdict, "ram"));
+ monitor_printf(mon, "transferred ram: %" PRIu64 " kbytes\n",
+ qdict_get_int(qdict_ram, "transferred") >> 10);
+ monitor_printf(mon, "remaining ram: %" PRIu64 " kbytes\n",
+ qdict_get_int(qdict_ram, "remaining") >> 10);
+ monitor_printf(mon, "total ram: %" PRIu64 " kbytes\n",
+ qdict_get_int(qdict_ram, "total") >> 10);
+ }
+}
+
+/**
+ * do_info_migrate(): Migration status
+ *
+ * Return a QDict. If migration is active there will be another
+ * QDict with RAM information.
+ *
+ * The main QDict contains the following:
+ *
+ * - "status": migration status
+ * - "ram": only present if "status" is "active", it is a QDict with the
+ * following information (in bytes):
+ * - "transferred": amount of RAM transferred
+ * - "remaining": amount of RAM remaining
+ * - "total": total RAM
+ *
+ * Examples:
+ *
+ * 1. If migration is "completed":
+ *
+ * { "status": "completed" }
+ *
+ * 2. If migration is "active":
+ *
+ * { "status": "active", "ram":
+ * { "transferred": 123, "remaining": 123, "total": 246 } }
+ */
+void do_info_migrate(Monitor *mon, QObject **ret_data)
{
MigrationState *s = current_migration;
if (s) {
- monitor_printf(mon, "Migration status: ");
switch (s->get_status(s)) {
case MIG_STATE_ACTIVE:
- monitor_printf(mon, "active\n");
- monitor_printf(mon, "transferred ram: %" PRIu64 " kbytes\n", ram_bytes_transferred() >> 10);
- monitor_printf(mon, "remaining ram: %" PRIu64 " kbytes\n", ram_bytes_remaining() >> 10);
- monitor_printf(mon, "total ram: %" PRIu64 " kbytes\n", ram_bytes_total() >> 10);
+ *ret_data = qobject_from_jsonf("{ 'status': 'active', 'ram': { 'transferred': %" PRId64 ", 'remaining': %" PRId64 ", 'total': %" PRId64 "} }", NULL, ram_bytes_transferred(), ram_bytes_remaining(), ram_bytes_total());
break;
case MIG_STATE_COMPLETED:
- monitor_printf(mon, "completed\n");
+ *ret_data = qobject_from_jsonf("{ 'status': 'completed' }", NULL);
break;
case MIG_STATE_ERROR:
- monitor_printf(mon, "failed\n");
+ *ret_data = qobject_from_jsonf("{ 'status': 'failed' }", NULL);
break;
case MIG_STATE_CANCELLED:
- monitor_printf(mon, "cancelled\n");
+ *ret_data = qobject_from_jsonf("{ 'status': 'cancelled' }", NULL);
break;
}
+ assert(*ret_data != NULL);
}
}
@@ -60,7 +60,8 @@ uint64_t migrate_max_downtime(void);
void do_migrate_set_downtime(Monitor *mon, const QDict *qdict);
-void do_info_migrate(Monitor *mon);
+void migration_user_print(Monitor *mon, const QObject *data);
+void do_info_migrate(Monitor *mon, QObject **ret_data);
int exec_start_incoming_migration(const char *host_port);
@@ -2177,7 +2177,8 @@ static const mon_cmd_t info_cmds[] = {
.args_type = "",
.params = "",
.help = "show migration status",
- .mhandler.info = do_info_migrate,
+ .user_print = migration_user_print,
+ .mhandler.info_new = do_info_migrate,
},
{
.name = "balloon",
Return a QDict, which may contain another QDict if the migration process is active. The main QDict contains the following: - "status": migration status - "ram": only present if "status" is "active", it is a QDict with the following information (in bytes): - "transferred": amount of RAM transferred - "remaining": amount of RAM remaining - "total": total RAM IMPORTANT: as a QInt stores a int64_t integer, those RAM values are going to stored as int64_t and not as uint64_t as they are today. If this is a problem QInt will have to be changed. This commit should not change user output, the following is an example of the returned QDict: { "status": "active", "ram": { "transferred": 885030912, "remaining": 198529024, "total": 1082392576 } } Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com> --- migration.c | 61 ++++++++++++++++++++++++++++++++++++++++++++++++++-------- migration.h | 3 +- monitor.c | 3 +- 3 files changed, 56 insertions(+), 11 deletions(-)