From 7faa1f075b14882696af22d0613255018416ac92 Mon Sep 17 00:00:00 2001
From: antirez <antirez@gmail.com>
Date: Mon, 16 Jan 2012 09:39:04 +0100
Subject: [PATCH] added a comment on top of the zslRandomLevel() function

---
 src/t_zset.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/t_zset.c b/src/t_zset.c
index fe65bf75..d2535c72 100644
--- a/src/t_zset.c
+++ b/src/t_zset.c
@@ -64,6 +64,10 @@ void zslFree(zskiplist *zsl) {
     zfree(zsl);
 }
 
+/* Returns a random level for the new skiplist node we are going to create.
+ * The return value of this function is between 1 and ZSKIPLIST_MAXLEVEL
+ * (both inclusive), with a powerlaw-alike distribution where higher
+ * levels are less likely to be returned. */
 int zslRandomLevel(void) {
     int level = 1;
     while ((random()&0xFFFF) < (ZSKIPLIST_P * 0xFFFF))
-- 
2.47.2