diff mbox

[09/31] batman-adv: hash, Add helper functions

Message ID 1417519009-20699-10-git-send-email-mpa@pengutronix.de (mailing list archive)
State Superseded, archived
Headers

Commit Message

Markus Pargmann Dec. 2, 2014, 11:16 a.m. UTC 
  Add helper functions for the hash structure in an attempt to capsulate
the hash struct. It creates a cleaner and more defined interface to the
hashtable and it is more obvious how the hash table is accessed.

Signed-off-by: Markus Pargmann <mpa@pengutronix.de>
---
 hash.c | 21 +++++++++++++++++++++
 hash.h |  9 +++++++++
 2 files changed, 30 insertions(+)
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Patch

diff --git a/hash.c b/hash.c
index c68bb8b3e8b9..d3313b54347c 100644
--- a/hash.c
+++ b/hash.c
@@ -18,6 +18,27 @@ 
 #include "main.h"
 #include "hash.h"
 
+uint32_t batadv_hash_size(struct batadv_hashtable *hash)
+{
+	return hash->size;
+}
+
+struct hlist_head *batadv_hash_get(struct batadv_hashtable *hash,
+				   uint32_t index)
+{
+	return &hash->table[index];
+}
+
+void batadv_hash_lock(struct batadv_hashtable *hash, uint32_t index)
+{
+	spin_lock_bh(&hash->list_locks[index]);
+}
+
+void batadv_hash_unlock(struct batadv_hashtable *hash, uint32_t index)
+{
+	spin_unlock_bh(&hash->list_locks[index]);
+}
+
 /* clears the hash */
 static void batadv_hash_init(struct batadv_hashtable *hash)
 {
diff --git a/hash.h b/hash.h
index 0761b64be337..d0681ecac0f0 100644
--- a/hash.h
+++ b/hash.h
@@ -63,4 +63,13 @@  void *batadv_hash_remove(struct batadv_hashtable *hash,
 			 batadv_hashdata_compare_cb compare,
 			 batadv_hashdata_choose_cb choose, void *data);
 
+uint32_t batadv_hash_size(struct batadv_hashtable *hash);
+
+struct hlist_head *batadv_hash_get(struct batadv_hashtable *hash,
+				   uint32_t index);
+
+void batadv_hash_lock(struct batadv_hashtable *hash, uint32_t index);
+
+void batadv_hash_unlock(struct batadv_hashtable *hash, uint32_t index);
+
 #endif /* _NET_BATMAN_ADV_HASH_H_ */