void hmp_info_snapshots(Monitor *mon, const QDict *qdict)
{
BlockDriverState *bs, *bs1;
+ BdrvNextIterator it1;
QEMUSnapshotInfo *sn_tab, *sn;
+ bool no_snapshot = true;
int nb_sns, i;
int total;
- int *available_snapshots;
+ int *global_snapshots;
AioContext *aio_context;
+ typedef struct SnapshotEntry {
+ QEMUSnapshotInfo sn;
+ QTAILQ_ENTRY(SnapshotEntry) next;
+ } SnapshotEntry;
+
+ typedef struct ImageEntry {
+ const char *imagename;
+ QTAILQ_ENTRY(ImageEntry) next;
+ QTAILQ_HEAD(, SnapshotEntry) snapshots;
+ } ImageEntry;
+
+ QTAILQ_HEAD(, ImageEntry) image_list =
+ QTAILQ_HEAD_INITIALIZER(image_list);
+
+ ImageEntry *image_entry, *next_ie;
+ SnapshotEntry *snapshot_entry;
+
bs = bdrv_all_find_vmstate_bs();
if (!bs) {
monitor_printf(mon, "No available block device supports snapshots\n");
return;
}
- if (nb_sns == 0) {
+ for (bs1 = bdrv_first(&it1); bs1; bs1 = bdrv_next(&it1)) {
+ int bs1_nb_sns = 0;
+ ImageEntry *ie;
+ SnapshotEntry *se;
+ AioContext *ctx = bdrv_get_aio_context(bs1);
+
+ aio_context_acquire(ctx);
+ if (bdrv_can_snapshot(bs1)) {
+ sn = NULL;
+ bs1_nb_sns = bdrv_snapshot_list(bs1, &sn);
+ if (bs1_nb_sns > 0) {
+ no_snapshot = false;
+ ie = g_new0(ImageEntry, 1);
+ ie->imagename = bdrv_get_device_name(bs1);
+ QTAILQ_INIT(&ie->snapshots);
+ QTAILQ_INSERT_TAIL(&image_list, ie, next);
+ for (i = 0; i < bs1_nb_sns; i++) {
+ se = g_new0(SnapshotEntry, 1);
+ se->sn = sn[i];
+ QTAILQ_INSERT_TAIL(&ie->snapshots, se, next);
+ }
+ }
+ g_free(sn);
+ }
+ aio_context_release(ctx);
+ }
+
+ if (no_snapshot) {
monitor_printf(mon, "There is no snapshot available.\n");
return;
}
- available_snapshots = g_new0(int, nb_sns);
+ global_snapshots = g_new0(int, nb_sns);
total = 0;
for (i = 0; i < nb_sns; i++) {
+ SnapshotEntry *next_sn;
if (bdrv_all_find_snapshot(sn_tab[i].name, &bs1) == 0) {
- available_snapshots[total] = i;
+ global_snapshots[total] = i;
total++;
+ QTAILQ_FOREACH(image_entry, &image_list, next) {
+ QTAILQ_FOREACH_SAFE(snapshot_entry, &image_entry->snapshots,
+ next, next_sn) {
+ if (!strcmp(sn_tab[i].name, snapshot_entry->sn.name)) {
+ QTAILQ_REMOVE(&image_entry->snapshots, snapshot_entry,
+ next);
+ g_free(snapshot_entry);
+ }
+ }
+ }
}
}
+ monitor_printf(mon, "List of snapshots present on all disks:\n");
+
if (total > 0) {
bdrv_snapshot_dump((fprintf_function)monitor_printf, mon, NULL);
monitor_printf(mon, "\n");
for (i = 0; i < total; i++) {
- sn = &sn_tab[available_snapshots[i]];
+ sn = &sn_tab[global_snapshots[i]];
/* The ID is not guaranteed to be the same on all images, so
* overwrite it.
*/
monitor_printf(mon, "\n");
}
} else {
- monitor_printf(mon, "There is no suitable snapshot available\n");
+ monitor_printf(mon, "None\n");
}
+ QTAILQ_FOREACH(image_entry, &image_list, next) {
+ if (QTAILQ_EMPTY(&image_entry->snapshots)) {
+ continue;
+ }
+ monitor_printf(mon,
+ "\nList of partial (non-loadable) snapshots on '%s':\n",
+ image_entry->imagename);
+ bdrv_snapshot_dump((fprintf_function)monitor_printf, mon, NULL);
+ monitor_printf(mon, "\n");
+ QTAILQ_FOREACH(snapshot_entry, &image_entry->snapshots, next) {
+ bdrv_snapshot_dump((fprintf_function)monitor_printf, mon,
+ &snapshot_entry->sn);
+ monitor_printf(mon, "\n");
+ }
+ }
+
+ QTAILQ_FOREACH_SAFE(image_entry, &image_list, next, next_ie) {
+ SnapshotEntry *next_sn;
+ QTAILQ_FOREACH_SAFE(snapshot_entry, &image_entry->snapshots, next,
+ next_sn) {
+ g_free(snapshot_entry);
+ }
+ g_free(image_entry);
+ }
g_free(sn_tab);
- g_free(available_snapshots);
+ g_free(global_snapshots);
}