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cpu_conf: Introduce virCPUDefList{Parse,Free}
For parsing a list of CPU XMLs into a NULL-terminated list of CPU defs. Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
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@ -29,9 +29,12 @@
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#include "cpu_conf.h"
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#include "domain_conf.h"
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#include "virstring.h"
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#include "virlog.h"
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#define VIR_FROM_THIS VIR_FROM_CPU
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VIR_LOG_INIT("conf.cpu_conf");
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VIR_ENUM_IMPL(virCPU, VIR_CPU_TYPE_LAST,
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"host", "guest", "auto")
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@ -939,3 +942,78 @@ virCPUDefIsEqual(virCPUDefPtr src,
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cleanup:
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return identical;
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}
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/*
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* Parses a list of CPU XMLs into a NULL-terminated list of CPU defs.
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*/
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virCPUDefPtr *
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virCPUDefListParse(const char **xmlCPUs,
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unsigned int ncpus,
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virCPUType cpuType)
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{
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xmlDocPtr doc = NULL;
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xmlXPathContextPtr ctxt = NULL;
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virCPUDefPtr *cpus = NULL;
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size_t i;
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VIR_DEBUG("xmlCPUs=%p, ncpus=%u", xmlCPUs, ncpus);
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if (xmlCPUs) {
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for (i = 0; i < ncpus; i++)
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VIR_DEBUG("xmlCPUs[%zu]=%s", i, NULLSTR(xmlCPUs[i]));
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}
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if (!xmlCPUs && ncpus != 0) {
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virReportError(VIR_ERR_INVALID_ARG, "%s",
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_("nonzero ncpus doesn't match with NULL xmlCPUs"));
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goto error;
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}
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if (ncpus == 0) {
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virReportError(VIR_ERR_INVALID_ARG, "%s", _("no CPUs given"));
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goto error;
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}
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if (VIR_ALLOC_N(cpus, ncpus + 1))
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goto error;
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for (i = 0; i < ncpus; i++) {
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if (!(doc = virXMLParseStringCtxt(xmlCPUs[i], _("(CPU_definition)"), &ctxt)))
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goto error;
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if (virCPUDefParseXML(ctxt, NULL, cpuType, &cpus[i]) < 0)
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goto error;
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xmlXPathFreeContext(ctxt);
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xmlFreeDoc(doc);
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ctxt = NULL;
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doc = NULL;
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}
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return cpus;
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error:
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virCPUDefListFree(cpus);
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xmlXPathFreeContext(ctxt);
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xmlFreeDoc(doc);
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return NULL;
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}
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/*
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* Frees NULL-terminated list of CPUs created by virCPUDefListParse.
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*/
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void
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virCPUDefListFree(virCPUDefPtr *cpus)
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{
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virCPUDefPtr *cpu;
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if (!cpus)
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return;
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for (cpu = cpus; *cpu != NULL; cpu++)
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virCPUDefFree(*cpu);
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VIR_FREE(cpus);
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}
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@ -218,4 +218,11 @@ virCPUDefUpdateFeature(virCPUDefPtr cpu,
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const char *name,
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int policy);
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virCPUDefPtr *
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virCPUDefListParse(const char **xmlCPUs,
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unsigned int ncpus,
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virCPUType cpuType);
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void
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virCPUDefListFree(virCPUDefPtr *cpus);
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#endif /* __VIR_CPU_CONF_H__ */
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@ -82,6 +82,8 @@ virCPUDefFree;
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virCPUDefFreeFeatures;
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virCPUDefFreeModel;
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virCPUDefIsEqual;
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virCPUDefListFree;
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virCPUDefListParse;
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virCPUDefParseXML;
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virCPUDefStealModel;
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virCPUDefUpdateFeature;
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