On 02/24/2015 03:11 PM, Laine Stump wrote:
> On 02/17/2015 04:03 PM, John Ferlan wrote:
>> Add virDomainGetIOThreadsInfo in order to return a list of
>> virDomainIOThreadsInfoPtr structures which list the IOThread ID,
>> the CPU Affinity map, and associated resources for each IOThread
>> for the domain. For an active domain, the live data will be
>> returned, while for an inactive domain, the config data will be
>> returned. The resources data is expected to be the src path for
>> the disks that have an assigned iothread.
>>
>> The API supports either the --live or --config flag, but not both.
>>
>> Also added virDomainIOThreadsInfoFree in order to free the cpumap,
>> list of resources, and the array entry structure.
>>
>> Signed-off-by: John Ferlan <jferlan@xxxxxxxxxx>
>> ---
>> include/libvirt/libvirt-domain.h | 23 +++++++++++-
>> src/driver-hypervisor.h | 8 +++-
>> src/libvirt-domain.c | 80 +++++++++++++++++++++++++++++++++++++++-
>> src/libvirt_public.syms | 6 +++
>> 4 files changed, 114 insertions(+), 3 deletions(-)
>>
>> diff --git a/include/libvirt/libvirt-domain.h b/include/libvirt/libvirt-domain.h
>> index 4dbd7f5..9dcc424 100644
>> --- a/include/libvirt/libvirt-domain.h
>> +++ b/include/libvirt/libvirt-domain.h
>> @@ -4,7 +4,7 @@
>> * Description: Provides APIs for the management of domains
>> * Author: Daniel Veillard <veillard@xxxxxxxxxx>
>> *
>> - * Copyright (C) 2006-2014 Red Hat, Inc.
>> + * Copyright (C) 2006-2015 Red Hat, Inc.
>> *
>> * This library is free software; you can redistribute it and/or
>> * modify it under the terms of the GNU Lesser General Public
>> @@ -1568,6 +1568,27 @@ int virDomainGetEmulatorPinInfo (virDomainPtr domain,
>> unsigned int flags);
>>
>> /**
>> + * virIOThreadsInfo:
>> + *
>> + * The data structure for information about IOThreads in a domain
>> + */
>> +typedef struct _virDomainIOThreadsInfo virDomainIOThreadsInfo;
>> +typedef virDomainIOThreadsInfo *virDomainIOThreadsInfoPtr;
>> +struct _virDomainIOThreadsInfo {
>> + unsigned int iothread_id; /* IOThread ID */
>> + unsigned char *cpumap; /* CPU map for thread */
>> + int cpumaplen; /* cpumap size */
>> + size_t nresources; /* count of resources using IOThread */
>> + char **resources; /* array of resources using IOThread */
>> +};
>
> As an outsider, I'm left a bit uninformed about exactly what will be in
> cpumap and resources. Is this information available elsewhere in the
> documentation already?
>
Point well taken... Just a little lower in the file cpumap is explained
a few times, but I can copy those descriptions here too
John
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