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virsh: add new vol-pool command

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This patch adds a new "vol-pool" command to virsh, to round out the
identifier conversion functions for volumes in virsh.  Now it is
possible to work with volumes when starting from just a volume key
or volume path.
This commit is contained in:
Justin Clift 2010-06-09 00:06:29 +10:00 committed by Eric Blake
parent 734bbf0ea9
commit 62f8674d62
1 changed files with 48 additions and 0 deletions
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48
tools/virsh.c
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@ -5980,6 +5980,53 @@ cmdVolName(vshControl *ctl, const vshCmd *cmd)
}
/*
* "vol-pool" command
*/
static const vshCmdInfo info_vol_pool[] = {
{"help", N_("returns the storage pool for a given volume key or path")},
{"desc", ""},
{NULL, NULL}
};
static const vshCmdOptDef opts_vol_pool[] = {
{"vol", VSH_OT_DATA, VSH_OFLAG_REQ, N_("volume key or path")},
{NULL, 0, 0, NULL}
};
static int
cmdVolPool(vshControl *ctl, const vshCmd *cmd)
{
virStoragePoolPtr pool;
virStorageVolPtr vol;
/* Check the connection to libvirtd daemon is still working */
if (!vshConnectionUsability(ctl, ctl->conn, TRUE))
return FALSE;
/* Use the supplied string to locate the volume */
if (!(vol = vshCommandOptVolBy(ctl, cmd, "vol", "pool", NULL,
VSH_BYUUID))) {
return FALSE;
}
/* Look up the parent storage pool for the volume */
pool = virStoragePoolLookupByVolume(vol);
if (pool == NULL) {
vshError(ctl, "%s", _("failed to get parent pool"));
virStorageVolFree(vol);
return FALSE;
}
/* Return the name of the parent storage pool */
vshPrint(ctl, "%s\n", virStoragePoolGetName(pool));
/* Cleanup */
virStorageVolFree(vol);
virStoragePoolFree(pool);
return TRUE;
}
/*
* "vol-key" command
@ -8842,6 +8889,7 @@ static const vshCmdDef commands[] = {
{"vol-dumpxml", cmdVolDumpXML, opts_vol_dumpxml, info_vol_dumpxml},
{"vol-info", cmdVolInfo, opts_vol_info, info_vol_info},
{"vol-list", cmdVolList, opts_vol_list, info_vol_list},
{"vol-pool", cmdVolPool, opts_vol_pool, info_vol_pool},
{"vol-path", cmdVolPath, opts_vol_path, info_vol_path},
{"vol-name", cmdVolName, opts_vol_name, info_vol_name},
{"vol-key", cmdVolKey, opts_vol_key, info_vol_key},