1 /* -*- mode: c; c-basic-offset: 8; -*-
2 * vim: noexpandtab sw=8 ts=8 sts=0:
8 * Copyright (C) 2004 Oracle. All rights reserved.
10 * This program is free software; you can redistribute it and/or
11 * modify it under the terms of the GNU General Public
12 * License as published by the Free Software Foundation; either
13 * version 2 of the License, or (at your option) any later version.
15 * This program is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
18 * General Public License for more details.
20 * You should have received a copy of the GNU General Public
21 * License along with this program; if not, write to the
22 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
23 * Boston, MA 021110-1307, USA.
27 #ifndef O2CLUSTER_TCP_H
28 #define O2CLUSTER_TCP_H
30 #include <linux/socket.h>
33 #include <linux/tcp.h>
35 #include <sys/socket.h>
37 #include <linux/inet.h>
53 typedef int (o2net_msg_handler_func)(struct o2net_msg *msg, u32 len, void *data);
55 #define O2NET_MAX_PAYLOAD_BYTES (4096 - sizeof(struct o2net_msg))
57 /* same as hb delay, we're waiting for another node to recognize our hb */
58 #define O2NET_RECONNECT_DELAY_MS_DEFAULT 2000
60 #define O2NET_KEEPALIVE_DELAY_MS_DEFAULT 5000
61 #define O2NET_IDLE_TIMEOUT_MS_DEFAULT 10000
64 /* TODO: figure this out.... */
65 static inline int o2net_link_down(int err, struct socket *sock)
68 if (sock->sk->sk_state != TCP_ESTABLISHED &&
69 sock->sk->sk_state != TCP_CLOSE_WAIT)
76 /* ????????????????????????? */
79 /* When the server has died, an ICMP port unreachable
80 * message prompts ECONNREFUSED. */
91 O2NET_DRIVER_UNINITED,
95 int o2net_send_message(u32 msg_type, u32 key, void *data, u32 len,
96 u8 target_node, int *status);
97 int o2net_send_message_vec(u32 msg_type, u32 key, struct kvec *vec,
98 size_t veclen, u8 target_node, int *status);
100 int o2net_register_handler(u32 msg_type, u32 key, u32 max_len,
101 o2net_msg_handler_func *func, void *data,
102 struct list_head *unreg_list);
103 void o2net_unregister_handler_list(struct list_head *list);
106 int o2net_register_hb_callbacks(void);
107 void o2net_unregister_hb_callbacks(void);
108 int o2net_start_listening(struct o2nm_node *node);
109 void o2net_stop_listening(struct o2nm_node *node);
110 void o2net_disconnect_node(struct o2nm_node *node);
111 int o2net_num_connected_peers(void);
113 int o2net_init(void);
114 void o2net_exit(void);
116 #endif /* O2CLUSTER_TCP_H */