Markus Armbruster <arm...@redhat.com> writes:
> Peter Xu <pet...@redhat.com> writes:
>
>> In the whole QAPI event emission code we're passing in an Error* object
>> along the whole stack. That's never useful since it never fails after
>> all. Remove that.
>
> This is the interesting part. We'll see below why it can't fail.
>
>> Then, remove that parameter from all the callers to send an event.
>
> This is the mechanical part. The callers pass &error_abort, except for
> one that passes NULL.
>
> The patch moves the &error_abort argument from the qapi_event_send_FOO()
> calls to the places where the argument is used. No effect except for
> the caller that passes NULL. That one now asserts "no error".
>
>> Suggested-by: Eric Blake <ebl...@redhat.com>
>> Suggested-by: Markus Armbruster <arm...@redhat.com>
>> Signed-off-by: Peter Xu <pet...@redhat.com>
>> ---
>
> Patch quoted except for the parts that drop &error_abort from
> qapi_event_send_FOO() calls:
>
> [...]
>> diff --git a/docs/devel/qapi-code-gen.txt b/docs/devel/qapi-code-gen.txt
>> index c2e11465f0..6d3cffd548 100644
>> --- a/docs/devel/qapi-code-gen.txt
>> +++ b/docs/devel/qapi-code-gen.txt
Missing:
@@ -1340,7 +1340,7 @@ Example:
#include "example-qapi-types.h"
- void qapi_event_send_my_event(Error **errp);
+ void qapi_event_send_my_event(void);
typedef enum example_QAPIEvent {
EXAMPLE_QAPI_EVENT_MY_EVENT = 0,
>> @@ -1356,10 +1356,9 @@ Example:
>> $ cat qapi-generated/example-qapi-events.c
>> [Uninteresting stuff omitted...]
>>
>> - void qapi_event_send_my_event(Error **errp)
>> + void qapi_event_send_my_event(void)
>> {
>> QDict *qmp;
>> - Error *err = NULL;
>> QMPEventFuncEmit emit;
>>
>> emit = qmp_event_get_func_emit();
>> @@ -1369,9 +1368,8 @@ Example:
>>
>> qmp = qmp_event_build_dict("MY_EVENT");
>>
>> - emit(EXAMPLE_QAPI_EVENT_MY_EVENT, qmp, &err);
>> + emit(EXAMPLE_QAPI_EVENT_MY_EVENT, qmp);
>>
>> - error_propagate(errp, err);
>> qobject_unref(qmp);
>> }
>>
[...]
