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conf: virDomainDeviceInfoCopy utility function

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This does a shallow copy of all the bits, then strdups the two items
that are actually allocated separately.
This commit is contained in:
Laine Stump 2012-10-11 01:09:00 -04:00
parent 310945597c
commit 11c47d979c
3 changed files with 27 additions and 0 deletions
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24
src/conf/domain_conf.c
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@ -2011,6 +2011,30 @@ virDomainDeviceInfoIsSet(virDomainDeviceInfoPtr info, unsigned int flags)
return false;
}
int
virDomainDeviceInfoCopy(virDomainDeviceInfoPtr dst,
virDomainDeviceInfoPtr src)
{
/* Assume that dst is already cleared */
/* first a shallow copy of *everything* */
*dst = *src;
/* then redo the two fields that are pointers */
dst->alias = NULL;
dst->romfile = NULL;
if (src->alias && !(dst->alias = strdup(src->alias))) {
virReportOOMError();
return -1;
}
if (src->romfile && !(dst->romfile = strdup(src->romfile))) {
virReportOOMError();
return -1;
}
return 0;
}
void virDomainDeviceInfoClear(virDomainDeviceInfoPtr info)
{
VIR_FREE(info->alias);

2
src/conf/domain_conf.h
View File

@ -1891,6 +1891,8 @@ virDomainDeviceDefPtr virDomainDeviceDefCopy(virCapsPtr caps,
virDomainDeviceDefPtr src);
int virDomainDeviceAddressIsValid(virDomainDeviceInfoPtr info,
int type);
int virDomainDeviceInfoCopy(virDomainDeviceInfoPtr dst,
virDomainDeviceInfoPtr src);
void virDomainDeviceInfoClear(virDomainDeviceInfoPtr info);
void virDomainDefClearPCIAddresses(virDomainDefPtr def);
void virDomainDefClearDeviceAliases(virDomainDefPtr def);

1
src/libvirt_private.syms
View File

@ -328,6 +328,7 @@ virDomainDeviceAddressTypeToString;
virDomainDeviceDefCopy;
virDomainDeviceDefFree;
virDomainDeviceDefParse;
virDomainDeviceInfoCopy;
virDomainDeviceInfoIterate;
virDomainDeviceTypeToString;
virDomainDiskBusTypeToString;