Markus Armbruster <[email protected]> writes:

> Daniel P. Berrangé <[email protected]> writes:
>
>> This introduces abstract QOM type "monitor", with concrete subtypes
>> "monitor-hmp" and "monitor-qmp". This is the bare minimum conversion
>> of just the type declarations and replacing g_new/g_free with
>> object_new/object_unref.
>>
>> Command line option "-monitor" now creates a "monitor-hmp" object
>> "/objects/compat_monitorNNN" in addition to the character device
>> "/chardevs/compat_monitorNNN". NNN counts up from zero.
>>
>> Exception: "-monitor chardev:ID" creates a "monitor-hmp" object
>> "/objects/ID", and does not create a character device.
>>
>> "-qmp" and "-qmp-pretty" work the same, except they create a
>> "monitor-qmp" object.
>>
>> "-mon" now creates either a "monitor-hmp" or "monitor-qmp" object
>> "/objects/ID" if the option argument provides an ID, else
>> "/objects/compat_monitorNNN".
>>
>> "-gdbstub" and "-serial mon:..." now create a "monitor-hmp" object
>> "/objects/compat_monitorNNN".
>>
>> Note that the object's name in "/objects/" matches the QemuOpts ID when
>> it exists.  The only cases where it doesn't exist are "-mon" without ID,
>> "-gdbstub" and "-serial mon:".
>>
>> A future patch will make "monitor-hmp" and "monitor-qmp" work with
>> "-object" and "object-add".
>>
>> Note: there is a slight change in the NNN values assigned. The old
>> code would increment the counter for every monitor added, regardless
>> of whether it needed a "compat_monitorNNN" ID assignment. Now it is
>> only incremented when an automatic ID assigned is needed, from any
>> of -mon, -gdbstub or -serial.
>
> This isn't quite right.  The old code increments the counter for every
> monitor added with monitor_parse(), i.e. the monitors added with
> -monitor, -qmp, -qmp-pretty, and most default monitors.  -mon, -serial
> mon:..., and -gdbstub don't use monitor_parse().
>
> If we don't need a respin (which seems likely), I can amend this to
>
>   Note: there is a slight change in the NNN values assigned. The old
>   code would increment the counter for every monitor added (except for
>   -mon, -serial mon:..., -gdbstub), regardless of whether it needed a
>   "compat_monitorNNN" ID assignment. Now it is only incremented when an
>   automatic ID assigned is needed (but even for -mon, -serial mon:...,
>   -gdbstub).
>
>> Signed-off-by: Daniel P. Berrangé <[email protected]>

Preferably with the change to NNN stated more precisely
Reviewed-by: Markus Armbruster <[email protected]>

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