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conf: Add helper to return a bitmap of active iothread ids

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This commit is contained in:
Peter Krempa 2016-01-13 13:06:56 +01:00
parent 9479642fd3
commit e992aa21f7
3 changed files with 33 additions and 0 deletions
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29
src/conf/domain_conf.c
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@ -18411,6 +18411,35 @@ virDomainIOThreadIDAdd(virDomainDefPtr def,
return NULL;
}
/*
* virDomainIOThreadIDMap:
* @def: domain definition
*
* Returns a map of active iothreads for @def.
*/
virBitmapPtr
virDomainIOThreadIDMap(virDomainDefPtr def)
{
unsigned int max = 0;
size_t i;
virBitmapPtr ret = NULL;
for (i = 0; i < def->niothreadids; i++) {
if (def->iothreadids[i]->iothread_id > max)
max = def->iothreadids[i]->iothread_id;
}
if (!(ret = virBitmapNew(max)))
return NULL;
for (i = 0; i < def->niothreadids; i++)
ignore_value(virBitmapSetBit(ret, def->iothreadids[i]->iothread_id));
return ret;
}
void
virDomainIOThreadIDDel(virDomainDefPtr def,
unsigned int iothread_id)

3
src/conf/domain_conf.h
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@ -2728,6 +2728,9 @@ virDomainIOThreadIDDefPtr virDomainIOThreadIDFind(virDomainDefPtr def,
unsigned int iothread_id);
virDomainIOThreadIDDefPtr virDomainIOThreadIDAdd(virDomainDefPtr def,
unsigned int iothread_id);
virBitmapPtr virDomainIOThreadIDMap(virDomainDefPtr def)
ATTRIBUTE_NONNULL(1) ATTRIBUTE_RETURN_CHECK;
void virDomainIOThreadIDDel(virDomainDefPtr def, unsigned int iothread_id);
void virDomainIOThreadSchedDelId(virDomainDefPtr def, unsigned int iothread_id);

1
src/libvirt_private.syms
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@ -345,6 +345,7 @@ virDomainIOThreadIDAdd;
virDomainIOThreadIDDefFree;
virDomainIOThreadIDDel;
virDomainIOThreadIDFind;
virDomainIOThreadIDMap;
virDomainIOThreadSchedDelId;
virDomainKeyWrapCipherNameTypeFromString;
virDomainKeyWrapCipherNameTypeToString;