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qemu: Split qemuDomainGetIOThreadsLive

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Separate out the fetch of the IOThread monitor call into a separate
helper so that a subsequent domain statistics change can fetch the raw
IOThread data and parse it as it sees fit.

Signed-off-by: John Ferlan <jferlan@redhat.com>
ACKed-by: Michal Privoznik <mprivozn@redhat.com>
This commit is contained in:
John Ferlan 2018-10-03 08:48:30 -04:00
parent d1c1f2c2f5
commit 212dc9286a
1 changed files with 27 additions and 15 deletions
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42
src/qemu/qemu_driver.c
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@ -5484,12 +5484,36 @@ qemuDomainGetMaxVcpus(virDomainPtr dom)
VIR_DOMAIN_VCPU_MAXIMUM));
}
static int
qemuDomainGetIOThreadsMon(virQEMUDriverPtr driver,
virDomainObjPtr vm,
qemuMonitorIOThreadInfoPtr **iothreads)
{
qemuDomainObjPrivatePtr priv;
int niothreads = 0;
priv = vm->privateData;
if (!virQEMUCapsGet(priv->qemuCaps, QEMU_CAPS_OBJECT_IOTHREAD)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("IOThreads not supported with this binary"));
return -1;
}
qemuDomainObjEnterMonitor(driver, vm);
niothreads = qemuMonitorGetIOThreads(priv->mon, iothreads);
if (qemuDomainObjExitMonitor(driver, vm) < 0 || niothreads < 0)
return -1;
return niothreads;
}
static int
qemuDomainGetIOThreadsLive(virQEMUDriverPtr driver,
virDomainObjPtr vm,
virDomainIOThreadInfoPtr **info)
{
qemuDomainObjPrivatePtr priv;
qemuMonitorIOThreadInfoPtr *iothreads = NULL;
virDomainIOThreadInfoPtr *info_ret = NULL;
int niothreads = 0;
@ -5505,18 +5529,7 @@ qemuDomainGetIOThreadsLive(virQEMUDriverPtr driver,
goto endjob;
}
priv = vm->privateData;
if (!virQEMUCapsGet(priv->qemuCaps, QEMU_CAPS_OBJECT_IOTHREAD)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("IOThreads not supported with this binary"));
goto endjob;
}
qemuDomainObjEnterMonitor(driver, vm);
niothreads = qemuMonitorGetIOThreads(priv->mon, &iothreads);
if (qemuDomainObjExitMonitor(driver, vm) < 0)
goto endjob;
if (niothreads < 0)
if ((niothreads = qemuDomainGetIOThreadsMon(driver, vm, &iothreads)) < 0)
goto endjob;
/* Nothing to do */
@ -5546,8 +5559,7 @@ qemuDomainGetIOThreadsLive(virQEMUDriverPtr driver,
virBitmapFree(map);
}
*info = info_ret;
info_ret = NULL;
VIR_STEAL_PTR(*info, info_ret);
ret = niothreads;
endjob: