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Re: [libvirt] [Qemu-devel] [PATCH 3/7] qapi: add query-machines command



On Fri, 10 Aug 2012 09:41:20 -0500
Anthony Liguori <aliguori us ibm com> wrote:

> Luiz Capitulino <lcapitulino redhat com> writes:
> 
> > On Fri, 27 Jul 2012 08:37:15 -0500
> > Anthony Liguori <aliguori us ibm com> wrote:
> >
> >> This provides the same output as -M ? but in a structured way.
> >> 
> >> Signed-off-by: Anthony Liguori <aliguori us ibm com>
> >> ---
> >>  qapi-schema.json |   28 ++++++++++++++++++++++++++++
> >>  qmp-commands.hx  |    6 ++++++
> >>  vl.c             |   31 +++++++++++++++++++++++++++++++
> >>  3 files changed, 65 insertions(+), 0 deletions(-)
> >> 
> >> diff --git a/qapi-schema.json b/qapi-schema.json
> >> index 28e9914..5b47026 100644
> >> --- a/qapi-schema.json
> >> +++ b/qapi-schema.json
> >> @@ -2200,3 +2200,31 @@
> >>  # Since: 0.14.0
> >>  ##
> >>  { 'command': 'closefd', 'data': {'fdname': 'str'} }
> >> +
> >> +##
> >> +# @MachineInfo:
> >> +#
> >> +# Information describing a machine.
> >> +#
> >> +# @name: the name of the machine
> >> +#
> >> +# @alias: #optional an alias for the machine name
> >> +#
> >> +# @default: #optional whether the machine is default
> >
> > Why is default optional?
> 
> Brievity.

Can you elaborate, please?

> 
> Regards,
> 
> Anthony Liguori
> 
> >
> >> +#
> >> +# Since: 1.2.0
> >> +##
> >> +{ 'type': 'MachineInfo',
> >> +  'data': { 'name': 'str', '*alias': 'str',
> >> +            '*is-default': 'bool' } }
> >> +
> >> +##
> >> +# @query-machines:
> >> +#
> >> +# Return a list of supported machines
> >> +#
> >> +# Returns: a list of MachineInfo
> >> +#
> >> +# Since: 1.2.0
> >> +##
> >> +{ 'command': 'query-machines', 'returns': ['MachineInfo'] }
> >> diff --git a/qmp-commands.hx b/qmp-commands.hx
> >> index 5c55528..a6f82fc 100644
> >> --- a/qmp-commands.hx
> >> +++ b/qmp-commands.hx
> >> @@ -2222,3 +2222,9 @@ EQMP
> >>          .mhandler.cmd_new = qmp_marshal_input_device_list_properties,
> >>      },
> >>  
> >> +    {
> >> +        .name       = "query-machines",
> >> +        .args_type  = "",
> >> +        .mhandler.cmd_new = qmp_marshal_input_query_machines,
> >> +    },
> >> +
> >> diff --git a/vl.c b/vl.c
> >> index 8904db1..cd900e0 100644
> >> --- a/vl.c
> >> +++ b/vl.c
> >> @@ -1209,6 +1209,37 @@ QEMUMachine *find_default_machine(void)
> >>      return NULL;
> >>  }
> >>  
> >> +MachineInfoList *qmp_query_machines(Error **errp)
> >> +{
> >> +    MachineInfoList *mach_list = NULL;
> >> +    QEMUMachine *m;
> >> +
> >> +    for (m = first_machine; m; m = m->next) {
> >> +        MachineInfoList *entry;
> >> +        MachineInfo *info;
> >> +
> >> +        info = g_malloc0(sizeof(*info));
> >> +        if (m->is_default) {
> >> +            info->has_is_default = true;
> >> +            info->is_default = true;
> >> +        }
> >> +
> >> +        if (m->alias) {
> >> +            info->has_alias = true;
> >> +            info->alias = g_strdup(m->alias);
> >> +        }
> >> +
> >> +        info->name = g_strdup(m->name);
> >> +
> >> +        entry = g_malloc0(sizeof(*entry));
> >> +        entry->value = info;
> >> +        entry->next = mach_list;
> >> +        mach_list = entry;
> >> +    }
> >> +
> >> +    return mach_list;
> >> +}
> >> +
> >>  /***********************************************************/
> >>  /* main execution loop */
> >>  
> 


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