Re: [Qemu-devel] [PATCH] new SDL keyboard shortcuts to start and stop VM

[Glauber Costa <glommer@gmail.com>]

On Wed, Oct 21, 2009 at 5:27 AM, Kevin Wolf <kwolf@redhat.com> wrote:
> Am 20.10.2009 19:08, schrieb Daniel P. Berrange:
>> On Tue, Oct 20, 2009 at 12:40:08PM +0200, Kevin Wolf wrote:
>>> Am 20.10.2009 00:20, schrieb Anthony Liguori:
>>>> Mulyadi Santosa wrote:
>>>>> IMO, it would be faster if we provide keyboard shortcuts that will
>>>>> stop and resume VM execution right from SDL guest interface, rather
>>>>> than switching to console monitor first and type "s" or "c"
>>>>> respectively.
>>>>>
>>>>
>>>> Is this really common of an operation that you would need an escape key
>>>> for it?
>>>>
>>>> Why are you so frequently stopping and continuing a guest?
>>>
>>> Why are you all trying to explain to him that actually he doesn't want
>>> to have this feature? I could have used it, too, at times (stop the
>>> guest to have enough time to attach gdb, for example). There are other
>>> ways to do it (although they are not as simple) and I used them, but
>>> that doesn't make this feature less useful.
>>>
>>> Does it take anything away for you? Or do you have plans to use those
>>> keys otherwise? If not, why not add a feature that some might find
>>> useful, even though others don't?
>>
>> The problem with adding lots of magic key-sequences, is that the more
>> you add, the more likely they are to clash with something that the
>> guest OS wants to use. You may make this use case work, but break
>> someone else's use case. Thus, IMHO, magic key sequences should be kept
>> to the bare minimum neccessary to access functionality for which there
>> is no other viable access method.
>
> Ok, you have a point there. But why do we have key sequences for
> fullscreen and resizing the SDL window back to its original size then?
> Both are things that could be accessed through monitor commands as well.
> And you don't need the right timing for resizing the window - unlike
> stopping the VM. So I would be really happy with swapping those for a
> "stop VM" shortcut.

Why don't we provide a mechanism to make a macro out of a sequence of
monitor commands, and let the user assign whatever he wants out of that?


-- 
Glauber  Costa.
"Free as in Freedom"
http://glommer.net

"The less confident you are, the more serious you have to act."