@@ -206,24 +206,24 @@ static SocketAddress *nbd_config(BDRVNBDState *s, QDict *options, char **export,
saddr = g_new0(SocketAddress, 1);
if (qdict_haskey(options, "path")) {
- saddr->kind = SOCKET_ADDRESS_KIND_UNIX;
- saddr->q_unix = g_new0(UnixSocketAddress, 1);
- saddr->q_unix->path = g_strdup(qdict_get_str(options, "path"));
+ saddr->type = SOCKET_ADDRESS_KIND_UNIX;
+ saddr->u.q_unix = g_new0(UnixSocketAddress, 1);
+ saddr->u.q_unix->path = g_strdup(qdict_get_str(options, "path"));
qdict_del(options, "path");
} else {
- saddr->kind = SOCKET_ADDRESS_KIND_INET;
- saddr->inet = g_new0(InetSocketAddress, 1);
- saddr->inet->host = g_strdup(qdict_get_str(options, "host"));
+ saddr->type = SOCKET_ADDRESS_KIND_INET;
+ saddr->u.inet = g_new0(InetSocketAddress, 1);
+ saddr->u.inet->host = g_strdup(qdict_get_str(options, "host"));
if (!qdict_get_try_str(options, "port")) {
- saddr->inet->port = g_strdup_printf("%d", NBD_DEFAULT_PORT);
+ saddr->u.inet->port = g_strdup_printf("%d", NBD_DEFAULT_PORT);
} else {
- saddr->inet->port = g_strdup(qdict_get_str(options, "port"));
+ saddr->u.inet->port = g_strdup(qdict_get_str(options, "port"));
}
qdict_del(options, "host");
qdict_del(options, "port");
}
- s->client.is_unix = saddr->kind == SOCKET_ADDRESS_KIND_UNIX;
+ s->client.is_unix = saddr->type == SOCKET_ADDRESS_KIND_UNIX;
*export = g_strdup(qdict_get_try_str(options, "export"));
if (*export) {
@@ -2738,18 +2738,16 @@ static ImageInfoSpecific *qcow2_get_specific_info(BlockDriverState *bs)
ImageInfoSpecific *spec_info = g_new(ImageInfoSpecific, 1);
*spec_info = (ImageInfoSpecific){
- .kind = IMAGE_INFO_SPECIFIC_KIND_QCOW2,
- {
- .qcow2 = g_new(ImageInfoSpecificQCow2, 1),
- },
+ .type = IMAGE_INFO_SPECIFIC_KIND_QCOW2,
+ .u.qcow2 = g_new(ImageInfoSpecificQCow2, 1),
};
if (s->qcow_version == 2) {
- *spec_info->qcow2 = (ImageInfoSpecificQCow2){
+ *spec_info->u.qcow2 = (ImageInfoSpecificQCow2){
.compat = g_strdup("0.10"),
.refcount_bits = s->refcount_bits,
};
} else if (s->qcow_version == 3) {
- *spec_info->qcow2 = (ImageInfoSpecificQCow2){
+ *spec_info->u.qcow2 = (ImageInfoSpecificQCow2){
.compat = g_strdup("1.1"),
.lazy_refcounts = s->compatible_features &
QCOW2_COMPAT_LAZY_REFCOUNTS,
@@ -2161,19 +2161,19 @@ static ImageInfoSpecific *vmdk_get_specific_info(BlockDriverState *bs)
ImageInfoList **next;
*spec_info = (ImageInfoSpecific){
- .kind = IMAGE_INFO_SPECIFIC_KIND_VMDK,
+ .type = IMAGE_INFO_SPECIFIC_KIND_VMDK,
{
.vmdk = g_new0(ImageInfoSpecificVmdk, 1),
},
};
- *spec_info->vmdk = (ImageInfoSpecificVmdk) {
+ *spec_info->u.vmdk = (ImageInfoSpecificVmdk) {
.create_type = g_strdup(s->create_type),
.cid = s->cid,
.parent_cid = s->parent_cid,
};
- next = &spec_info->vmdk->extents;
+ next = &spec_info->u.vmdk->extents;
for (i = 0; i < s->num_extents; i++) {
*next = g_new0(ImageInfoList, 1);
(*next)->value = vmdk_get_extent_info(&s->extents[i]);
@@ -1050,13 +1050,14 @@ void hmp_commit(Monitor *mon, const QDict *qdict)
}
}
-static void blockdev_do_action(int kind, void *data, Error **errp)
+static void blockdev_do_action(TransactionActionKind type, void *data,
+ Error **errp)
{
TransactionAction action;
TransactionActionList list;
- action.kind = kind;
- action.data = data;
+ action.type = type;
+ action.u.data = data;
list.value = &action;
list.next = NULL;
qmp_transaction(&list, errp);
@@ -1295,9 +1296,9 @@ static void internal_snapshot_prepare(BlkTransactionState *common,
InternalSnapshotState *state;
int ret1;
- g_assert(common->action->kind ==
+ g_assert(common->action->type ==
TRANSACTION_ACTION_KIND_BLOCKDEV_SNAPSHOT_INTERNAL_SYNC);
- internal = common->action->blockdev_snapshot_internal_sync;
+ internal = common->action->u.blockdev_snapshot_internal_sync;
state = DO_UPCAST(InternalSnapshotState, common, common);
/* 1. parse input */
@@ -1437,22 +1438,22 @@ static void external_snapshot_prepare(BlkTransactionState *common,
TransactionAction *action = common->action;
/* get parameters */
- g_assert(action->kind == TRANSACTION_ACTION_KIND_BLOCKDEV_SNAPSHOT_SYNC);
+ g_assert(action->type == TRANSACTION_ACTION_KIND_BLOCKDEV_SNAPSHOT_SYNC);
- has_device = action->blockdev_snapshot_sync->has_device;
- device = action->blockdev_snapshot_sync->device;
- has_node_name = action->blockdev_snapshot_sync->has_node_name;
- node_name = action->blockdev_snapshot_sync->node_name;
+ has_device = action->u.blockdev_snapshot_sync->has_device;
+ device = action->u.blockdev_snapshot_sync->device;
+ has_node_name = action->u.blockdev_snapshot_sync->has_node_name;
+ node_name = action->u.blockdev_snapshot_sync->node_name;
has_snapshot_node_name =
- action->blockdev_snapshot_sync->has_snapshot_node_name;
- snapshot_node_name = action->blockdev_snapshot_sync->snapshot_node_name;
+ action->u.blockdev_snapshot_sync->has_snapshot_node_name;
+ snapshot_node_name = action->u.blockdev_snapshot_sync->snapshot_node_name;
- new_image_file = action->blockdev_snapshot_sync->snapshot_file;
- if (action->blockdev_snapshot_sync->has_format) {
- format = action->blockdev_snapshot_sync->format;
+ new_image_file = action->u.blockdev_snapshot_sync->snapshot_file;
+ if (action->u.blockdev_snapshot_sync->has_format) {
+ format = action->u.blockdev_snapshot_sync->format;
}
- if (action->blockdev_snapshot_sync->has_mode) {
- mode = action->blockdev_snapshot_sync->mode;
+ if (action->u.blockdev_snapshot_sync->has_mode) {
+ mode = action->u.blockdev_snapshot_sync->mode;
}
/* start processing */
@@ -1577,8 +1578,8 @@ static void drive_backup_prepare(BlkTransactionState *common, Error **errp)
DriveBackup *backup;
Error *local_err = NULL;
- assert(common->action->kind == TRANSACTION_ACTION_KIND_DRIVE_BACKUP);
- backup = common->action->drive_backup;
+ assert(common->action->type == TRANSACTION_ACTION_KIND_DRIVE_BACKUP);
+ backup = common->action->u.drive_backup;
blk = blk_by_name(backup->device);
if (!blk) {
@@ -1645,8 +1646,8 @@ static void blockdev_backup_prepare(BlkTransactionState *common, Error **errp)
BlockBackend *blk;
Error *local_err = NULL;
- assert(common->action->kind == TRANSACTION_ACTION_KIND_BLOCKDEV_BACKUP);
- backup = common->action->blockdev_backup;
+ assert(common->action->type == TRANSACTION_ACTION_KIND_BLOCKDEV_BACKUP);
+ backup = common->action->u.blockdev_backup;
blk = blk_by_name(backup->device);
if (!blk) {
@@ -1772,9 +1773,9 @@ void qmp_transaction(TransactionActionList *dev_list, Error **errp)
dev_info = dev_entry->value;
dev_entry = dev_entry->next;
- assert(dev_info->kind < ARRAY_SIZE(actions));
+ assert(dev_info->type < ARRAY_SIZE(actions));
- ops = &actions[dev_info->kind];
+ ops = &actions[dev_info->type];
assert(ops->instance_size > 0);
state = g_malloc0(ops->instance_size);
We have two issues with our qapi union layout: 1) Even though the QMP wire format spells the tag 'type', the C code spells it 'kind', requiring some hacks in the generator. 2) The C struct uses an anonymous union, which places all tag values in the same namespace as all non-variant members. This leads to spurious collisions if a tag value matches a QMP name. Make the conversion to the new layout for block-related code. Signed-off-by: Eric Blake <eblake@redhat.com> --- v10: no change v9: new patch, but incorporates parts of v5 31/46 and Markus' RFC: http://lists.gnu.org/archive/html/qemu-devel/2015-10/msg02236.html --- block/nbd.c | 18 +++++++++--------- block/qcow2.c | 10 ++++------ block/vmdk.c | 6 +++--- blockdev.c | 47 ++++++++++++++++++++++++----------------------- 4 files changed, 40 insertions(+), 41 deletions(-)