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lvm2app: Add function to retrieve the origin.

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Signed-off-by: Tony Asleson <tasleson@redhat.com>
This commit is contained in:
Tony Asleson 2013-04-11 16:48:40 -04:00
parent 9e0260c2e3
commit a7f3dbf904
2 changed files with 21 additions and 0 deletions
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16
liblvm/lvm2app.h
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@ -1231,6 +1231,22 @@ const char *lvm_lv_get_name(const lv_t lv);
*/ */
const char *lvm_lv_get_attr(const lv_t lv); const char *lvm_lv_get_attr(const lv_t lv);
/**
* Get the origin of a snapshot.
*
* \memberof lv_t
*
* The memory allocated for the name is tied to the vg_t handle and will be
* released when lvm_vg_close() is called.
*
* \param lv
* Logical volume handle.
*
* \return
* Null if the logical volume is not a snapshot, else origin name.
*/
const char *lvm_lv_get_origin(const lv_t lv);
/** /**
* Get the current size in bytes of a logical volume. * Get the current size in bytes of a logical volume.
* *

5
liblvm/lvm_lv.c
View File

@ -62,6 +62,11 @@ const char *lvm_lv_get_attr(const lv_t lv)
return lv_attr_dup(lv->vg->vgmem, lv); return lv_attr_dup(lv->vg->vgmem, lv);
} }
const char *lvm_lv_get_origin(const lv_t lv)
{
return lv_origin_dup(lv->vg->vgmem, lv);
}
struct lvm_property_value lvm_lv_get_property(const lv_t lv, const char *name) struct lvm_property_value lvm_lv_get_property(const lv_t lv, const char *name)
{ {
return get_property(NULL, NULL, lv, NULL, NULL, NULL, name); return get_property(NULL, NULL, lv, NULL, NULL, NULL, name);