From 0de54378aff9348e45c9ccdd4310887a753acfab Mon Sep 17 00:00:00 2001
From: Frederic Robra
Date: Fri, 5 Jul 2019 17:30:02 +0200
Subject: added first support for connection with more than one server

---
 src/kernel/dnbd3.h | 40 ++++++++++++++++++++--------------------
 1 file changed, 20 insertions(+), 20 deletions(-)

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

diff --git a/src/kernel/dnbd3.h b/src/kernel/dnbd3.h
index 0a4ef67..7ad6b2f 100644
--- a/src/kernel/dnbd3.h
+++ b/src/kernel/dnbd3.h
@@ -31,9 +31,9 @@
 #include "serialize.h"
 
 
+#define NUMBER_CONNECTIONS 4
 
-typedef struct
-{
+typedef struct dnbd3_server_t {
 	dnbd3_host_t host;
 	uint64_t rtts[4];		// Last four round trip time measurements in microsecond
 	uint16_t protocol_version;	// dnbd3 protocol version of this server
@@ -41,13 +41,16 @@ typedef struct
 } dnbd3_server_t;
 
 
+typedef struct dnbd3_sock {
+	struct socket *sock;
+	struct mutex lock;
+	struct request *pending;
+	struct dnbd3_server_t *server;
+} dnbd3_sock;
+
 typedef struct dnbd3_device_t {
 	int minor;
 	struct blk_mq_tag_set tag_set;
-//	struct request_queue queue;
-	struct mutex config_lock;
-	refcount_t config_refs;
-	refcount_t refs;
 	struct list_head list;
 
 	// block
@@ -57,23 +60,26 @@ typedef struct dnbd3_device_t {
 	struct kobject kobj;
 
 	// network
+	dnbd3_sock socks[NUMBER_CONNECTIONS];
 	char *imgname;
-	struct socket *sock;
-	struct mutex socket_lock;
-	struct request *pending;
-	dnbd3_server_t cur_server, initial_server;
-	uint64_t cur_rtt;
-	serialized_buffer_t payload_buffer;
+//	struct socket *sock;
+//	struct mutex socket_lock;
+//	struct request *pending;
+	dnbd3_server_t initial_server;
+//	dnbd3_server_t cur_server, initial_server;
+//	uint64_t cur_rtt;
+//	serialized_buffer_t payload_buffer;
 	dnbd3_server_t alt_servers[NUMBER_SERVERS]; // array of alt servers
 	int new_servers_num;	// number of new alt servers that are waiting to be copied to above array
 	dnbd3_server_entry_t new_servers[NUMBER_SERVERS]; // pending new alt servers
-	uint8_t discover, panic, disconnecting, update_available, panic_count;
+//	uint8_t discover, panic, disconnecting, update_available, panic_count;
+	uint8_t update_available;
 	uint8_t use_server_provided_alts;
 	uint16_t rid;
 	uint32_t heartbeat_count;
 	uint64_t reported_size;
 	// server switch
-	struct socket *better_sock;
+//	struct socket *better_sock;
 
 
 	// process
@@ -100,11 +106,5 @@ typedef struct dnbd3_cmd {
 	uint32_t cmd_cookie;
 } dnbd3_cmd;
 
-typedef struct dnbd3_sock {
-	struct socket *sock;
-	struct mutex lock;
-	struct request *pending;
-	struct dnbd3_server_t *server;
-} dnbd3_sock;
 
 #endif /* DNBD_H_ */
-- 
cgit v1.2.3-55-g7522