Re: [libvirt RFC v3 06/19] remote: Add RPC support for the virDomainRestoreParametersFlags API

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On 4/27/22 1:00 AM, Jim Fehlig wrote:
> On 4/26/22 10:47, Claudio Fontana wrote:
>> Signed-off-by: Claudio Fontana <cfontana@xxxxxxx>
>> ---
>>   src/remote/remote_driver.c   |  1 +
>>   src/remote/remote_protocol.x | 14 +++++++++++++-
>>   src/remote_protocol-structs  |  8 ++++++++
>>   3 files changed, 22 insertions(+), 1 deletion(-)
>>
>> diff --git a/src/remote/remote_driver.c b/src/remote/remote_driver.c
>> index 1fc5d41971..c5b644ce49 100644
>> --- a/src/remote/remote_driver.c
>> +++ b/src/remote/remote_driver.c
>> @@ -8449,6 +8449,7 @@ static virHypervisorDriver hypervisor_driver = {
>>       .domainSaveParametersFlags = remoteDomainSaveParametersFlags, /* 8.3.0 */
>>       .domainRestore = remoteDomainRestore, /* 0.3.0 */
>>       .domainRestoreFlags = remoteDomainRestoreFlags, /* 0.9.4 */
>> +    .domainRestoreParametersFlags = remoteDomainRestoreParametersFlags, /* 8.3.0 */
>>       .domainSaveImageGetXMLDesc = remoteDomainSaveImageGetXMLDesc, /* 0.9.4 */
>>       .domainSaveImageDefineXML = remoteDomainSaveImageDefineXML, /* 0.9.4 */
>>       .domainCoreDump = remoteDomainCoreDump, /* 0.3.0 */
>> diff --git a/src/remote/remote_protocol.x b/src/remote/remote_protocol.x
>> index c2ae5c5748..7b919ef375 100644
>> --- a/src/remote/remote_protocol.x
>> +++ b/src/remote/remote_protocol.x
>> @@ -3236,6 +3236,11 @@ struct remote_domain_save_parameters_flags_args {
>>       unsigned int flags;
>>   };
>>   
>> +struct remote_domain_restore_parameters_flags_args {
>> +    remote_typed_param params<REMOTE_DOMAIN_SAVE_PARAMS_MAX>;
>> +    unsigned int flags;
>> +};
>> +
>>   /* The device removed event is the last event where we have to support
>>    * dual forms for back-compat to older clients; all future events can
>>    * use just the modern form with callbackID.  */
>> @@ -6935,5 +6940,12 @@ enum remote_procedure {
>>        * @generate: both
>>        * @acl: domain:hibernate
>>        */
>> -    REMOTE_PROC_DOMAIN_SAVE_PARAMETERS_FLAGS = 440
>> +    REMOTE_PROC_DOMAIN_SAVE_PARAMETERS_FLAGS = 440,
>> +
>> +    /**
>> +     * @generate: both
>> +     * @acl: domain:start
>> +     * @acl: domain:write
>> +     */
>> +    REMOTE_PROC_DOMAIN_RESTORE_PARAMETERS_FLAGS = 441
> 
> I've stared at this for quite a while but can't figure out why the dispatch stub 
> does not pass virConnectPtr to virDomainRestoreParametersFlags. I'm hitting the 
> following build failure
> 
> In file included from ../src/remote/remote_daemon_dispatch.c:133:
> 
> src/remote/remote_daemon_dispatch_stubs.h: In function 
> ‘remoteDispatchDomainRestoreParametersFlags’:
> 
> src/remote/remote_daemon_dispatch_stubs.h:10080:41: error: passing argument 1 of 
> ‘virDomainRestoreParametersFlags’ from incompatible pointer type 
> [-Werror=incompatible-pointer-types]
> 
> 10080 |     if (virDomainRestoreParametersFlags(params, nparams, args->flags) < 0)
> 
>        |                                         ^~~~~~
> 
>        |                                         |
> 
>        |                                         virTypedParameterPtr {aka 
> struct _virTypedParameter *}
> 
> In file included from ../include/libvirt/libvirt.h:36,
> 
>                   from ../src/internal.h:65,
> 
>                   from ../src/util/virerror.h:24,
> 
>                   from ../src/remote/remote_daemon_dispatch.c:23:
> 
> ../include/libvirt/libvirt-domain.h:1576:72: note: expected ‘virConnectPtr’ {aka 
> ‘struct _virConnect *’} but argument is of type ‘virTypedParameterPtr’ {aka 
> ‘struct _virTypedParameter *’}
> 
>   1576 | int                     virDomainRestoreParametersFlags (virConnectPtr 
> conn,
> 
> 
> Perhaps a bug in gendispatch.pl. I'm not familiar with the script or debugging 
> it, but others here can likely provide help.

Indeed, same issue I get.

Thanks again,

Claudio

> 
> Jim
> 
>>   };
>> diff --git a/src/remote_protocol-structs b/src/remote_protocol-structs
>> index 89eadeb644..72e92184ca 100644
>> --- a/src/remote_protocol-structs
>> +++ b/src/remote_protocol-structs
>> @@ -579,6 +579,13 @@ struct remote_domain_restore_flags_args {
>>           remote_string              dxml;
>>           u_int                      flags;
>>   };
>> +struct remote_domain_restore_parameters_flags_args {
>> +        struct {
>> +                u_int              params_len;
>> +                remote_typed_param * params_val;
>> +        } params;
>> +        u_int                      flags;
>> +};
>>   struct remote_domain_save_image_get_xml_desc_args {
>>           remote_nonnull_string      file;
>>           u_int                      flags;
>> @@ -3698,4 +3705,5 @@ enum remote_procedure {
>>           REMOTE_PROC_DOMAIN_EVENT_MEMORY_DEVICE_SIZE_CHANGE = 438,
>>           REMOTE_PROC_DOMAIN_SET_LAUNCH_SECURITY_STATE = 439,
>>           REMOTE_PROC_DOMAIN_SAVE_PARAMETERS_FLAGS = 440,
>> +        REMOTE_PROC_DOMAIN_RESTORE_PARAMETERS_FLAGS = 441,
>>   };
> 





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