Re: [libvirt] [PATCH 1/4] vz: make output arguments in prlsdkGetDomainIds as optional

> prlsdkGetDomainIds() returns name and uuid for specified instance. > Now output arguments can be NULL. > It allows to get only necessary info(name or uuid). > --- > src/vz/vz_sdk.c | 34 +++++++++++++++++++--------------- > 1 file changed, 19 insertions(+), 15 deletions(-) > > diff --git a/src/vz/vz_sdk.c b/src/vz/vz_sdk.c > index 7973d6a..8181149 100644 > --- a/src/vz/vz_sdk.c > +++ b/src/vz/vz_sdk.c > @@ -346,25 +346,29 @@ prlsdkGetDomainIds(PRL_HANDLE sdkdom, > PRL_UINT32 len; > PRL_RESULT pret; > > - len = 0; > - /* get name length */ > - pret = PrlVmCfg_GetName(sdkdom, NULL, &len); > - prlsdkCheckRetGoto(pret, error); > + if (name) { > + len = 0; > + /* get name length */ > + pret = PrlVmCfg_GetName(sdkdom, NULL, &len); > + prlsdkCheckRetGoto(pret, error); > > - if (VIR_ALLOC_N(*name, len) < 0) > - goto error; > + if (VIR_ALLOC_N(*name, len) < 0) > + goto error; > > - PrlVmCfg_GetName(sdkdom, *name, &len); > - prlsdkCheckRetGoto(pret, error); > + PrlVmCfg_GetName(sdkdom, *name, &len); > + prlsdkCheckRetGoto(pret, error); > + } > > - len = sizeof(uuidstr); > - PrlVmCfg_GetUuid(sdkdom, uuidstr, &len); > - prlsdkCheckRetGoto(pret, error); > + if (uuid) { > + len = sizeof(uuidstr); > + PrlVmCfg_GetUuid(sdkdom, uuidstr, &len); > + prlsdkCheckRetGoto(pret, error); > > - if (prlsdkUUIDParse(uuidstr, uuid) < 0) { > - virReportError(VIR_ERR_INTERNAL_ERROR, "%s", > - _("Domain UUID is malformed or empty")); > - goto error; > + if (prlsdkUUIDParse(uuidstr, uuid) < 0) { > + virReportError(VIR_ERR_INTERNAL_ERROR, "%s", > + _("Domain UUID is malformed or empty")); > + goto error; > + } > } > > return 0; > ACK, but I would add *name = NULL as another patch or we depend on caller setting it for us if we follow error path.