dict: optimize dict_serialized_length_lk function

To return the length of searlized dictionary the function
iterates full dictionary and access every key value member
of the dictionary.Instead of iterating full dictionary introduce
a variable totkvlen at dictionary to save the key value length
at the time of storing key/value pair in the dictionary.

Change-Id: Ie8cfdea1cc335bce51f59179281df3c89afab68b
Fixes: #1395
Signed-off-by: Mohit Agrawal <moagrawa@redhat.com>

1 files changed, 3 insertions, 1 deletions

diff --git a/libglusterfs/src/glusterfs/dict.h b/libglusterfs/src/glusterfs/dict.h
index ce1c2100276..d4bf9b4f1a7 100644
--- a/libglusterfs/src/glusterfs/dict.h
+++ b/libglusterfs/src/glusterfs/dict.h
@@ -98,7 +98,7 @@ struct _data {
     char *data;
     gf_atomic_t refcount;
     gf_dict_data_type_t data_type;
-    int32_t len;
+    uint32_t len;
     gf_boolean_t is_static;
 };
 
@@ -122,6 +122,8 @@ struct _dict {
     gf_lock_t lock;
     data_pair_t *members_internal;
     data_pair_t free_pair;
+    /* Variable to store total keylen + value->len */
+    uint32_t totkvlen;
 };
 
 typedef gf_boolean_t (*dict_match_t)(dict_t *d, char *k, data_t *v, void *data);