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virsh: cpupin: Extract getter code into a separate function

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This commit is contained in:
Peter Krempa 2016-02-12 10:56:08 +01:00
parent 783584b52b
commit 773f3bd3cc
1 changed files with 79 additions and 58 deletions
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137
tools/virsh-domain.c
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@ -6374,6 +6374,68 @@ virshPrintPinInfo(vshControl *ctl,
return true;
}
static bool
virshVcpuPinQuery(vshControl *ctl,
virDomainPtr dom,
unsigned int vcpu,
bool got_vcpu,
int maxcpu,
unsigned int flags)
{
unsigned char *cpumap = NULL;
int cpumaplen;
size_t i;
int ncpus;
bool ret = false;
if ((ncpus = virshCPUCountCollect(ctl, dom, flags, true)) < 0) {
if (ncpus == -1) {
if (flags & VIR_DOMAIN_AFFECT_LIVE)
vshError(ctl, "%s", _("cannot get vcpupin for offline domain"));
else
vshError(ctl, "%s", _("cannot get vcpupin for transient domain"));
}
return false;
}
if (got_vcpu && vcpu >= ncpus) {
if (flags & VIR_DOMAIN_AFFECT_LIVE ||
(!(flags & VIR_DOMAIN_AFFECT_CONFIG) &&
virDomainIsActive(dom) == 1))
vshError(ctl,
_("vcpu %d is out of range of live cpu count %d"),
vcpu, ncpus);
else
vshError(ctl,
_("vcpu %d is out of range of persistent cpu count %d"),
vcpu, ncpus);
return false;
}
cpumaplen = VIR_CPU_MAPLEN(maxcpu);
cpumap = vshMalloc(ctl, ncpus * cpumaplen);
if ((ncpus = virDomainGetVcpuPinInfo(dom, ncpus, cpumap,
cpumaplen, flags)) >= 0) {
vshPrintExtra(ctl, "%s %s\n", _("VCPU:"), _("CPU Affinity"));
vshPrintExtra(ctl, "----------------------------------\n");
for (i = 0; i < ncpus; i++) {
if (got_vcpu && i != vcpu)
continue;
vshPrint(ctl, "%4zu: ", i);
ret = virshPrintPinInfo(ctl, VIR_GET_CPUMAP(cpumap, cpumaplen, i),
cpumaplen);
vshPrint(ctl, "\n");
if (!ret)
break;
}
}
return ret;
}
static unsigned char *
virshParseCPUList(vshControl *ctl, int *cpumaplen,
const char *cpulist, int maxcpu)
@ -6416,8 +6478,7 @@ cmdVcpuPin(vshControl *ctl, const vshCmd *cmd)
bool ret = false;
unsigned char *cpumap = NULL;
int cpumaplen;
int maxcpu, ncpus;
size_t i;
int maxcpu;
bool config = vshCommandOptBool(cmd, "config");
bool live = vshCommandOptBool(cmd, "live");
bool current = vshCommandOptBool(cmd, "current");
@ -6456,64 +6517,24 @@ cmdVcpuPin(vshControl *ctl, const vshCmd *cmd)
/* Query mode: show CPU affinity information then exit.*/
if (!cpulist) {
if ((ncpus = virshCPUCountCollect(ctl, dom, flags, true)) < 0) {
if (ncpus == -1) {
if (flags & VIR_DOMAIN_AFFECT_LIVE)
vshError(ctl, "%s", _("cannot get vcpupin for offline domain"));
else
vshError(ctl, "%s", _("cannot get vcpupin for transient domain"));
}
goto cleanup;
}
if (got_vcpu && vcpu >= ncpus) {
if (flags & VIR_DOMAIN_AFFECT_LIVE ||
(!(flags & VIR_DOMAIN_AFFECT_CONFIG) &&
virDomainIsActive(dom) == 1))
vshError(ctl,
_("vcpu %d is out of range of live cpu count %d"),
vcpu, ncpus);
else
vshError(ctl,
_("vcpu %d is out of range of persistent cpu count %d"),
vcpu, ncpus);
goto cleanup;
}
cpumaplen = VIR_CPU_MAPLEN(maxcpu);
cpumap = vshMalloc(ctl, ncpus * cpumaplen);
if ((ncpus = virDomainGetVcpuPinInfo(dom, ncpus, cpumap,
cpumaplen, flags)) >= 0) {
vshPrintExtra(ctl, "%s %s\n", _("VCPU:"), _("CPU Affinity"));
vshPrintExtra(ctl, "----------------------------------\n");
for (i = 0; i < ncpus; i++) {
if (got_vcpu && i != vcpu)
continue;
vshPrint(ctl, "%4zu: ", i);
ret = virshPrintPinInfo(ctl, VIR_GET_CPUMAP(cpumap, cpumaplen, i),
cpumaplen);
vshPrint(ctl, "\n");
if (!ret)
break;
}
}
} else {
/* Pin mode: pinning specified vcpu to specified physical cpus*/
if (!(cpumap = virshParseCPUList(ctl, &cpumaplen, cpulist, maxcpu)))
goto cleanup;
/* use old API without any explicit flags */
if (flags == VIR_DOMAIN_AFFECT_CURRENT && !current) {
if (virDomainPinVcpu(dom, vcpu, cpumap, cpumaplen) != 0)
goto cleanup;
} else {
if (virDomainPinVcpuFlags(dom, vcpu, cpumap, cpumaplen, flags) != 0)
goto cleanup;
}
ret = true;
ret = virshVcpuPinQuery(ctl, dom, vcpu, got_vcpu, maxcpu, flags);
goto cleanup;
}
/* Pin mode: pinning specified vcpu to specified physical cpus*/
if (!(cpumap = virshParseCPUList(ctl, &cpumaplen, cpulist, maxcpu)))
goto cleanup;
/* use old API without any explicit flags */
if (flags == VIR_DOMAIN_AFFECT_CURRENT && !current) {
if (virDomainPinVcpu(dom, vcpu, cpumap, cpumaplen) != 0)
goto cleanup;
} else {
if (virDomainPinVcpuFlags(dom, vcpu, cpumap, cpumaplen, flags) != 0)
goto cleanup;
}
ret = true;
cleanup:
VIR_FREE(cpumap);
virDomainFree(dom);