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Add domainGetSchedulerType to libxl driver

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* src/libxl/libxl_driver.c: implements libxlDomainGetSchedulerType
This commit is contained in:
Markus Groß 2011-03-29 20:46:55 +08:00 committed by Daniel Veillard
parent 0244977180
commit d53bca4868
1 changed files with 63 additions and 1 deletions
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64
src/libxl/libxl_driver.c
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@ -55,6 +55,9 @@
#define LIBXL_CONFIG_FORMAT_XM "xen-xm"
/* Number of Xen scheduler parameters */
#define XEN_SCHED_CREDIT_NPARAM 2
static libxlDriverPrivatePtr libxl_driver = NULL;
@ -1954,6 +1957,65 @@ libxlDomainEventDeregister(virConnectPtr conn,
return ret;
}
static char *
libxlDomainGetSchedulerType(virDomainPtr dom, int *nparams)
{
libxlDriverPrivatePtr driver = dom->conn->privateData;
libxlDomainObjPrivatePtr priv;
virDomainObjPtr vm;
char * ret = NULL;
int sched_id;
libxlDriverLock(driver);
vm = virDomainFindByUUID(&driver->domains, dom->uuid);
libxlDriverUnlock(driver);
if (!vm) {
libxlError(VIR_ERR_NO_DOMAIN, "%s", _("no domain with matching uuid"));
goto cleanup;
}
if (!virDomainObjIsActive(vm)) {
libxlError(VIR_ERR_OPERATION_INVALID, "%s", _("Domain is not running"));
goto cleanup;
}
priv = vm->privateData;
if ((sched_id = libxl_get_sched_id(&priv->ctx)) < 0) {
libxlError(VIR_ERR_INTERNAL_ERROR,
_("Failed to get scheduler id for domain '%d'"
" with libxenlight"), dom->id);
goto cleanup;
}
*nparams = 0;
switch(sched_id) {
case XEN_SCHEDULER_SEDF:
ret = strdup("sedf");
break;
case XEN_SCHEDULER_CREDIT:
ret = strdup("credit");
*nparams = XEN_SCHED_CREDIT_NPARAM;
break;
case XEN_SCHEDULER_CREDIT2:
ret = strdup("credit2");
break;
case XEN_SCHEDULER_ARINC653:
ret = strdup("arinc653");
break;
default:
goto cleanup;
}
if (!ret)
virReportOOMError();
cleanup:
if (vm)
virDomainObjUnlock(vm);
return ret;
}
static int
libxlDomainIsActive(virDomainPtr dom)
{
@ -2099,7 +2161,7 @@ static virDriver libxlDriver = {
NULL, /* domainUpdateDeviceFlags */
NULL, /* domainGetAutostart */
NULL, /* domainSetAutostart */
NULL, /* domainGetSchedulerType */
libxlDomainGetSchedulerType,/* domainGetSchedulerType */
NULL, /* domainGetSchedulerParameters */
NULL, /* domainSetSchedulerParameters */
NULL, /* domainMigratePrepare */