Re: [Qemu-devel] [PATCH v3 2/8] qapi: complete implementation of unions

[Mark Wu]

On 03/06/2012 04:14 PM, Paolo Bonzini wrote:
> Il 06/03/2012 08:16, Mark Wu ha scritto:
> > It seems we need a name for the union to reference its member.
> What version is your compiler?
>
> > So I
> > modified the scripts as the following patch. I also updated blockdev.c
> > accordingly. After that I can compile it without error. Actually, I
> > don't know why we need introduce a union for BlockdevAction. Can we just
> > use a void pointer like "void *action_param" to replace the union? Or
> > can we change the field ."snapshot_file to "target" too? Then they can
> > share the same action parameter structure.
> No, the struct must match the existing blockdev-snapshot-sync command.
>
> Paolo
gcc -v
Using built-in specs.
Target: x86_64-redhat-linux
Configured with: ../configure --prefix=/usr --mandir=/usr/share/man 
--infodir=/usr/share/info 
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--disable-libjava-multilib --with-ppl --with-cloog --with-tune=generic 
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Thread model: posix
gcc version 4.4.5 20110214 (Red Hat 4.4.5-6) (GCC)