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Introduce zpool_get_prop_literal interface

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This change introduces zpool_get_prop_literal. It's an expanded version
of zpool_get_prop taking one additional boolean parameter. With this
parameter set to B_FALSE it will behave identically to zpool_get_prop.
Setting it to B_TRUE will return full precision numbers for the
following properties:

ZPOOL_PROP_SIZE
ZPOOL_PROP_ALLOCATED
ZPOOL_PROP_FREE
ZPOOL_PROP_FREEING
ZPOOL_PROP_EXPANDSZ
ZPOOL_PROP_ASHIFT

Also introduced is a wrapper function for zpool_get_prop making it
use zpool_get_prop_literal in the background.

Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Issue #1813
This commit is contained in:
Ralf Ertzinger
2013-10-23 10:33:33 +02:00
committed by Brian Behlendorf
parent 157c9b6981
commit 8b921f667a
2 changed files with 19 additions and 3 deletions
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lib/libzfs/libzfs_pool.c
+17 -3
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@@ -236,12 +236,22 @@ zpool_pool_state_to_name(pool_state_t state)
}
/*
* Get a zpool property value for 'prop' and return the value in
* a pre-allocated buffer.
* API compatibility wrapper around zpool_get_prop_literal
*/
int
zpool_get_prop(zpool_handle_t *zhp, zpool_prop_t prop, char *buf, size_t len,
zprop_source_t *srctype)
{
return zpool_get_prop_literal(zhp, prop, buf, len, srctype, B_FALSE);
}
/*
* Get a zpool property value for 'prop' and return the value in
* a pre-allocated buffer.
*/
int
zpool_get_prop_literal(zpool_handle_t *zhp, zpool_prop_t prop, char *buf, size_t len,
zprop_source_t *srctype, boolean_t literal)
{
uint64_t intval;
const char *strval;
@@ -308,7 +318,11 @@ zpool_get_prop(zpool_handle_t *zhp, zpool_prop_t prop, char *buf, size_t len,
case ZPOOL_PROP_FREEING:
case ZPOOL_PROP_EXPANDSZ:
case ZPOOL_PROP_ASHIFT:
(void) zfs_nicenum(intval, buf, len);
if (literal)
(void) snprintf(buf, len, "%llu",
(u_longlong_t)intval);
else
(void) zfs_nicenum(intval, buf, len);
break;
case ZPOOL_PROP_CAPACITY: