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qapi transaction: Elide redundant has_FOO in generated C

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The has_FOO for pointer-valued FOO are redundant, except for arrays.
They are also a nuisance to work with.  Recent commit "qapi: Start to
elide redundant has_FOO in generated C" provided the means to elide
them step by step.  This is the step for qapi/transaction.json.

Said commit explains the transformation in more detail.  The invariant
violations mentioned there do not occur here.

In qmp_transaction(), we can't just drop parameter @has_props, since
it's used to track whether @props needs to be freed.  Replace it by a
local variable.

Cc: Kevin Wolf <kwolf@redhat.com>
Cc: Hanna Reitz <hreitz@redhat.com>
Cc: qemu-block@nongnu.org
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20221104160712.3005652-27-armbru@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
This commit is contained in:
Markus Armbruster 2022-11-04 17:07:08 +01:00
parent ced2939685
commit 238e9202a2
2 changed files with 2 additions and 3 deletions
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4
blockdev.c
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@ -1048,7 +1048,7 @@ static void blockdev_do_action(TransactionAction *action, Error **errp)
list.value = action;
list.next = NULL;
qmp_transaction(&list, false, NULL, errp);
qmp_transaction(&list, NULL, errp);
}
void qmp_blockdev_snapshot_sync(const char *device, const char *node_name,
@ -2289,11 +2289,11 @@ static TransactionProperties *get_transaction_properties(
* Always run under BQL.
*/
void qmp_transaction(TransactionActionList *dev_list,
bool has_props,
struct TransactionProperties *props,
Error **errp)
{
TransactionActionList *dev_entry = dev_list;
bool has_props = !!props;
JobTxn *block_job_txn = NULL;
BlkActionState *state, *next;
Error *local_err = NULL;

1
scripts/qapi/schema.py
View File

@ -759,7 +759,6 @@ class QAPISchemaObjectTypeMember(QAPISchemaMember):
assert self.type
# Temporary hack to support dropping the has_FOO in reviewable chunks
opt_out = [
'qapi/transaction.json',
'qapi/ui.json',
'qapi/virtio.json',
'qga/qapi-schema.json']