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author | Petr Rockai <prockai@redhat.com> | 2010-11-17 20:10:42 +0000 |
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committer | Petr Rockai <prockai@redhat.com> | 2010-11-17 20:10:42 +0000 |
commit | b2b27cd7f437273fda695f45d8e45732677b39c5 (patch) | |
tree | 869d21305a338cf6654d47a5f3c83efdeed47a1b /liblvm | |
parent | 5de70620efe93ad03ec3cb046cc5f26efc9baf92 (diff) | |
download | lvm2-b2b27cd7f437273fda695f45d8e45732677b39c5.tar.gz lvm2-b2b27cd7f437273fda695f45d8e45732677b39c5.tar.xz lvm2-b2b27cd7f437273fda695f45d8e45732677b39c5.zip |
Add a new type and function to lvm2app to enumerate pvsegs.
Signed-off-by: Dave Wysochanski <wysochanski@pobox.com>
Reviewed-by: Petr Rockai <prockai@redhat.com>
Diffstat (limited to 'liblvm')
-rw-r--r-- | liblvm/lvm2app.h | 31 | ||||
-rw-r--r-- | liblvm/lvm_pv.c | 27 |
2 files changed, 58 insertions, 0 deletions
diff --git a/liblvm/lvm2app.h b/liblvm/lvm2app.h index 1158bc5e..b9c70d6c 100644 --- a/liblvm/lvm2app.h +++ b/liblvm/lvm2app.h @@ -96,6 +96,7 @@ struct physical_volume; struct volume_group; struct logical_volume; struct lv_segment; +struct pv_segment; /** * \class lvm_t @@ -145,6 +146,13 @@ typedef struct physical_volume *pv_t; typedef struct lv_segment *lvseg_t; /** + * \class pvseg_t + * + * This pv segment object is bound to a pv_t. + */ +typedef struct pv_segment *pvseg_t; + +/** * Logical Volume object list. * * Lists of these structures are returned by lvm_vg_list_lvs(). @@ -175,6 +183,16 @@ typedef struct lvm_pv_list { } pv_list_t; /** + * Physical Volume Segment object list. + * + * Lists of these structures are returned by lvm_pv_list_pvsegs(). + */ +typedef struct lvm_pvseg_list { + struct dm_list list; + pvseg_t pvseg; +} pvseg_list_t; + +/** * String list. * * This string list contains read-only strings. @@ -1419,6 +1437,19 @@ uint64_t lvm_pv_get_free(const pv_t pv); struct lvm_property_value lvm_pv_get_property(const pv_t pv, const char *name); /** + * Return a list of pvseg handles for a given PV handle. + * + * \memberof pv_t + * + * \param pv + * Physical volume handle. + * + * \return + * A list of lvm_pvseg_list structures containing pvseg handles for this pv. + */ +struct dm_list *lvm_pv_list_pvsegs(pv_t pv); + +/** * Resize physical volume to new_size bytes. * * \memberof pv_t diff --git a/liblvm/lvm_pv.c b/liblvm/lvm_pv.c index 6705dd81..aaaca922 100644 --- a/liblvm/lvm_pv.c +++ b/liblvm/lvm_pv.c @@ -54,6 +54,33 @@ struct lvm_property_value lvm_pv_get_property(const pv_t pv, const char *name) return get_property(pv, NULL, NULL, NULL, name); } +struct dm_list *lvm_pv_list_pvsegs(pv_t pv) +{ + struct dm_list *list; + pvseg_list_t *pvseg; + struct pv_segment *pvl; + + if (dm_list_empty(&pv->segments)) + return NULL; + + if (!(list = dm_pool_zalloc(pv->vg->vgmem, sizeof(*list)))) { + log_errno(ENOMEM, "Memory allocation fail for dm_list."); + return NULL; + } + dm_list_init(list); + + dm_list_iterate_items(pvl, &pv->segments) { + if (!(pvseg = dm_pool_zalloc(pv->vg->vgmem, sizeof(*pvseg)))) { + log_errno(ENOMEM, + "Memory allocation fail for lvm_pvseg_list."); + return NULL; + } + pvseg->pvseg = pvl; + dm_list_add(list, &pvseg->list); + } + return list; +} + int lvm_pv_resize(const pv_t pv, uint64_t new_size) { /* FIXME: add pv resize code here */ |