From bd1c4e2c84c25a945f61a66367ce8d0cf4551034 Mon Sep 17 00:00:00 2001
From: Frederic Robra
Date: Tue, 30 Jul 2019 12:15:38 +0200
Subject: added documentation

---
 src/kernel/dnbd3.h | 17 +++++++++++++++--
 1 file changed, 15 insertions(+), 2 deletions(-)

(limited to 'src/kernel/dnbd3.h')

diff --git a/src/kernel/dnbd3.h b/src/kernel/dnbd3.h
index 3ae42fd..edd19e1 100644
--- a/src/kernel/dnbd3.h
+++ b/src/kernel/dnbd3.h
@@ -33,8 +33,12 @@
 /**
  * the number of parallel connections
  */
+
 #define NUMBER_CONNECTIONS 4
 
+
+
+
 /**
  * limit to which the other connected servers are only allowed to be that worser
  * then the best rtt
@@ -76,12 +80,12 @@ struct dnbd3_server {
 	 * for (i = 3; i > 0; i--) {
 	 *     server->failures[i] = server->failures[i - 1]
 	 * }
-	 * server-failures[0] = 0;
+	 * server->failures[0] = 0;
 	 * failures always go to failures[0] / *failures
 	 *
 	 * - is this to much effort?
 	 * - what are the benefits?
-	 *   - could increase the rtt e.g. (rtt = rtt * failures)
+	 * - could increase the rtt e.g. (rtt = rtt * failures)
 	 */
 };
 
@@ -192,6 +196,15 @@ struct dnbd3_cmd {
 };
 
 
+#define dnbd3_avg_rtt(server) \
+	(( (server)->rtts[0] + (server)->rtts[1] \
+			+ (server)->rtts[2] + (server)->rtts[3] ) / 4 )
+
+#define dnbd3_set_rtt_unreachable(server) \
+	(server)->rtts[0] = (server)->rtts[1] = (server)->rtts[2] \
+			= (server)->rtts[3] = RTT_UNREACHABLE;
+
+
 /**
  * macros for logging
  * levels:
-- 
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