Re: [Qemu-devel] KVM call minutes for Feb 15

[Avi Kivity <avi@redhat.com>]

On 02/16/2011 01:13 AM, Anthony Liguori wrote:
> On 02/15/2011 10:26 AM, Chris Wright wrote:
>> QAPI and QMP
>> - Anthony adding a new wiki page to describe all of this
>
> http://wiki.qemu.org/Features/QAPI
>

   [ 'change', {'device': 'str', 'target': 'str'}, {'arg': 'str'}, 'none' ]
     ->
   void qmp_change(const char *device, const char *target, bool has_arg, 
const char *arg, Error **errp);

AFAICT a json-string allows embedded NULs ('\0000').  There translate to 
UTF-8 as '\0', terminating your char *s.  Either we use some 
length/pointer structure, or the parser has to look for them and kill 
them, and we have to specify them as verboten.

BlockDeviceInfo *qmp_query_block_device_info(const char *device, Error **errp)
{
     BlockDeviceInfo *info;
     BlockDriverState *bs;
     Error *local_err = NULL;

     bs = bdrv_find(device,&local_err);
     if (local_err) {
         error_propagate(errp, local_err);
         return NULL;
     }

     info->file = qemu_strdup(bs->filename);
     info->ro = bs->readonly;
     info->drv = qemu_strdup(bs->drv);
     info->encrypted = bs->encrypted;
     if (bs->backing_file[0]) {
         info->has_backing_file = true;
         info->backing_file = qemu_strdup(info->backing_file);
     }

     return info;
}


So, info and all its pointer-typed members are required to be 
qemu_free() compatible, with just a single pointer pointing to an 
object, and generated code will qemu_free() everything?

Recommend translating '-' in identifiers to '_' so we can use '-' in the 
schema as a word separator.

-- 

error compiling committee.c: too many arguments to function