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-rw-r--r--libglusterfs/src/common-utils.c50
-rw-r--r--libglusterfs/src/common-utils.h10
-rw-r--r--libglusterfs/src/mem-types.h1
3 files changed, 61 insertions, 0 deletions
diff --git a/libglusterfs/src/common-utils.c b/libglusterfs/src/common-utils.c
index 81e01bf6108..716f002b106 100644
--- a/libglusterfs/src/common-utils.c
+++ b/libglusterfs/src/common-utils.c
@@ -4016,3 +4016,53 @@ _unmask_cancellation (void)
{
(void) pthread_setcancelstate (PTHREAD_CANCEL_ENABLE, NULL);
}
+
+/* This is a wrapper function to add a pointer to a list,
+ * * which doesn't contain list member
+ * */
+struct list_node*
+_list_node_add (void *ptr, struct list_head *list,
+ int (*compare)(struct list_head *, struct list_head *))
+{
+ struct list_node *node = NULL;
+
+ if (ptr == NULL || list == NULL)
+ goto out;
+
+ node = GF_CALLOC (1, sizeof (struct list_node), gf_common_list_node);
+
+ if (node == NULL)
+ goto out;
+
+ node->ptr = ptr;
+ if (compare)
+ list_add_order (&node->list, list, compare);
+ else
+ list_add_tail (&node->list, list);
+out:
+ return node;
+}
+
+struct list_node*
+list_node_add (void *ptr, struct list_head *list)
+{
+ return _list_node_add (ptr, list, NULL);
+}
+
+struct list_node*
+list_node_add_order (void *ptr, struct list_head *list,
+ int (*compare)(struct list_head *, struct list_head *))
+{
+ return _list_node_add (ptr, list, compare);
+}
+
+void
+list_node_del (struct list_node *node)
+{
+ if (node == NULL)
+ return;
+
+ list_del_init (&node->list);
+ GF_FREE (node);
+}
+
diff --git a/libglusterfs/src/common-utils.h b/libglusterfs/src/common-utils.h
index e374285c71d..53f220cdf9f 100644
--- a/libglusterfs/src/common-utils.h
+++ b/libglusterfs/src/common-utils.h
@@ -165,6 +165,16 @@ typedef struct dht_changelog_rename_info {
char buffer[1];
} dht_changelog_rename_info_t;
+struct list_node {
+ void *ptr;
+ struct list_head list;
+};
+
+struct list_node *list_node_add (void *ptr, struct list_head *list);
+struct list_node *list_node_add_order (void *ptr, struct list_head *list,
+ int (*compare)(struct list_head *,
+ struct list_head *));
+void list_node_del (struct list_node *node);
typedef int (*gf_cmp) (void *, void *);
diff --git a/libglusterfs/src/mem-types.h b/libglusterfs/src/mem-types.h
index dd96cc63545..124e5692f9e 100644
--- a/libglusterfs/src/mem-types.h
+++ b/libglusterfs/src/mem-types.h
@@ -156,6 +156,7 @@ enum gf_common_mem_types_ {
gf_common_mt_syncstack,
gf_common_mt_syncenv,
gf_common_mt_scan_data,
+ gf_common_list_node,
gf_common_mt_end
};
#endif