On Wed, Apr 18, 2018 at 03:03:20PM +0200, Pavel Hrdina wrote:
On Tue, Apr 17, 2018 at 02:04:37PM +0200, Katerina Koukiou wrote:
> Signed-off-by: Katerina Koukiou <kkoukiou(a)redhat.com>
> ---
> data/org.libvirt.Domain.xml | 6 ++++++
> src/domain.c | 34 ++++++++++++++++++++++++++++++++++
> 2 files changed, 40 insertions(+)
>
> diff --git a/data/org.libvirt.Domain.xml b/data/org.libvirt.Domain.xml
> index f2ef3dd..97c5471 100644
> --- a/data/org.libvirt.Domain.xml
> +++ b/data/org.libvirt.Domain.xml
> @@ -268,6 +268,12 @@
> value="See
https://libvirt.org/html/libvirt-libvirt-domain.html#virDomainMigrateStar...
> <arg name="flags" type="u"
direction="in"/>
> </method>
> + <method name="PinEmulator">
> + <annotation name="org.gtk.GDBus.DocString"
> + value="See
https://libvirt.org/html/libvirt-libvirt-domain.html#virDomainPinEmulator...
> + <arg name="cpumap" type="ay"
direction="in"/>
We need to figure out a better way how to represent the CPU map in
libvirt-dbus. IMHO using an array of unsigned char is not the best
from for D-Bus.
There are two possible forms, using the string representation as we
have in virsh, so for example "0,3-7,^5" which is 10011011.
The second form is the one that libvirt-python uses, a tuple of boolean
values, which in case of D-Bus would be represented as array of boolean
values.
array of boolean is better than array of char in that it is explicitly
typed. It is inefficient though - each boolean value takes up 32-bit on
the wire !
The first form is better suited for humans so I guess we should go
with
the second form in D-Bus.
Ultimately you should think about how a dbus client will consume the
data. If you use array of boolean, that all the DBus clients will
map that into native boolean types which are easy to acess for apps.
If you use the string syntax, then every application has to write
parsing & formatting code for this syntax.
Regards,
Daniel
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