[LVM,1/4] Misc: New function for reading lvm config file, 'dm_config_get_int'

Commit Message

Jonthan Brassow Jan. 23, 2014, 3:05 p.m. UTC

---
 libdm/libdevmapper.h |    1 +
 libdm/libdm-config.c |   14 ++++++++++++++
 2 files changed, 15 insertions(+), 0 deletions(-)

Patch

diff --git a/libdm/libdevmapper.h b/libdm/libdevmapper.h
index adfbb76..3bf8bd6 100644
--- a/libdm/libdevmapper.h
+++ b/libdm/libdevmapper.h
@@ -1661,6 +1661,7 @@  int dm_config_tree_find_bool(const struct dm_config_tree *cft, const char *path,
 int dm_config_find_bool(const struct dm_config_node *cn, const char *path, int fail);
 int dm_config_value_is_bool(const struct dm_config_value *v);
 
+int dm_config_get_int(const struct dm_config_node *cn, const char *path, int *result);
 int dm_config_get_uint32(const struct dm_config_node *cn, const char *path, uint32_t *result);
 int dm_config_get_uint64(const struct dm_config_node *cn, const char *path, uint64_t *result);
 int dm_config_get_str(const struct dm_config_node *cn, const char *path, const char **result);
diff --git a/libdm/libdm-config.c b/libdm/libdm-config.c
index ea1af2f..3297621 100644
--- a/libdm/libdm-config.c
+++ b/libdm/libdm-config.c
@@ -1047,6 +1047,20 @@  int dm_config_tree_find_bool(const struct dm_config_tree *cft, const char *path,
 
 /************************************/
 
+int dm_config_get_int(const struct dm_config_node *cn, const char *path,
+		      int *result)
+{
+	const struct dm_config_node *n;
+
+	n = _find_config_node(cn, path);
+
+	if (!n || !n->v || n->v->type != DM_CFG_INT)
+		return 0;
+
+	if (result)
+		*result = n->v->v.i;
+	return 1;
+}
 
 int dm_config_get_uint32(const struct dm_config_node *cn, const char *path,
 			 uint32_t *result)