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qapi/commands: refactor error handling code

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Move error_propagate() to if (err) and make "if (err)" block mandatory.
This is to simplify further commit, which will bring trace events
generation for QMP commands.

Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-Id: <20220126161130.3240892-3-vsementsov@virtuozzo.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
This commit is contained in:
Vladimir Sementsov-Ogievskiy 2022-01-26 17:11:25 +01:00 • committed by Markus Armbruster
parent 4e86df1732
commit 167d913f34
2 changed files with 8 additions and 4 deletions
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10
scripts/qapi/commands.py
View file

@ -74,14 +74,18 @@ def gen_call(name: str,
ret = mcgen('''
%(lhs)sqmp_%(c_name)s(%(args)s&err);
error_propagate(errp, err);
''',
c_name=c_name(name), args=argstr, lhs=lhs)
if ret_type:
ret += mcgen('''
ret += mcgen('''
if (err) {
error_propagate(errp, err);
goto out;
}
''')
if ret_type:
ret += mcgen('''
qmp_marshal_output_%(c_name)s(retval, ret, errp);
''',