[libvirt] [PATCH 3/5] API: add trivial qemu support for VIR_TYPED_PARAM_STRING

From: Eric Blake <eblake(a)redhat.com&gt; Qemu will be the first driver to make use of a typed string in the next round of additions. Separate out the trivial addition. * src/qemu/qemu_driver.c (qemudSupportsFeature): Advertise feature. (qemuDomainGetBlkioParameters, qemuDomainGetMemoryParameters) (qemuGetSchedulerParametersFlags, qemudDomainBlockStatsFlags): Allow typed strings flag where trivially supported. --- src/qemu/qemu_driver.c | 24 ++++++++++++++++++++---- 1 files changed, 20 insertions(+), 4 deletions(-) diff --git a/src/qemu/qemu_driver.c b/src/qemu/qemu_driver.c index 118197a..c8a858e 100644 --- a/src/qemu/qemu_driver.c +++ b/src/qemu/qemu_driver.c @@ -920,6 +920,7 @@ qemudSupportsFeature (virConnectPtr conn ATTRIBUTE_UNUSED, int feature) case VIR_DRV_FEATURE_MIGRATION_P2P: case VIR_DRV_FEATURE_MIGRATE_CHANGE_PROTECTION: case VIR_DRV_FEATURE_FD_PASSING: + case VIR_DRV_FEATURE_TYPED_PARAM_STRING: return 1; default: return 0; @@ -6041,9 +6042,13 @@ static int qemuDomainGetBlkioParameters(virDomainPtr dom, bool isActive; virCheckFlags(VIR_DOMAIN_AFFECT_LIVE | - VIR_DOMAIN_AFFECT_CONFIG, -1); + VIR_DOMAIN_AFFECT_CONFIG | + VIR_TYPED_PARAM_STRING_OKAY, -1); qemuDriverLock(driver); + /* We don't return strings, and thus trivially support this flag. */ + flags &= ~VIR_TYPED_PARAM_STRING_OKAY; + vm = virDomainFindByUUID(&driver->domains, dom->uuid); if (vm == NULL) { @@ -6336,10 +6341,14 @@ static int qemuDomainGetMemoryParameters(virDomainPtr dom, bool isActive; virCheckFlags(VIR_DOMAIN_AFFECT_LIVE | - VIR_DOMAIN_AFFECT_CONFIG, -1); + VIR_DOMAIN_AFFECT_CONFIG | + VIR_TYPED_PARAM_STRING_OKAY, -1); qemuDriverLock(driver); + /* We don't return strings, and thus trivially support this flag. */ + flags &= ~VIR_TYPED_PARAM_STRING_OKAY; + vm = virDomainFindByUUID(&driver->domains, dom->uuid); if (vm == NULL) { @@ -6883,10 +6892,14 @@ qemuGetSchedulerParametersFlags(virDomainPtr dom, int saved_nparams = 0; virCheckFlags(VIR_DOMAIN_AFFECT_LIVE | - VIR_DOMAIN_AFFECT_CONFIG, -1); + VIR_DOMAIN_AFFECT_CONFIG | + VIR_TYPED_PARAM_STRING_OKAY, -1); qemuDriverLock(driver); + /* We don't return strings, and thus trivially support this flag. */ + flags &= ~VIR_TYPED_PARAM_STRING_OKAY; + if ((flags & (VIR_DOMAIN_AFFECT_LIVE | VIR_DOMAIN_AFFECT_CONFIG)) == (VIR_DOMAIN_AFFECT_LIVE | VIR_DOMAIN_AFFECT_CONFIG)) { qemuReportError(VIR_ERR_INVALID_ARG, "%s", @@ -7142,7 +7155,10 @@ qemuDomainBlockStatsFlags(virDomainPtr dom, long long wr_total_times, flush_req, flush_total_times, errs; virTypedParameterPtr param; - virCheckFlags(0, -1); + virCheckFlags(VIR_TYPED_PARAM_STRING_OKAY, -1); + + /* We don't return strings, and thus trivially support this flag. */ + flags &= ~VIR_TYPED_PARAM_STRING_OKAY; qemuDriverLock(driver); vm = virDomainFindByUUID(&driver->domains, dom->uuid); -- 1.7.3.1