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 R2CLUSTER_TCP_H
28 #define R2CLUSTER_TCP_H
30 #include <linux/socket.h>
33 #include <linux/tcp.h>
35 #include <sys/socket.h>
37 #include <linux/inet.h>
52 typedef int (r2net_msg_handler_func)(struct r2net_msg *msg, u32 len, void *data,
54 typedef void (r2net_post_msg_handler_func)(int status, void *data,
57 #define R2NET_MAX_PAYLOAD_BYTES (4096 - sizeof(struct r2net_msg))
59 /* same as hb delay, we're waiting for another node to recognize our hb */
60 #define R2NET_RECONNECT_DELAY_MS_DEFAULT 2000
62 #define R2NET_KEEPALIVE_DELAY_MS_DEFAULT 2000
63 #define R2NET_IDLE_TIMEOUT_MS_DEFAULT 30000
66 /* TODO: figure this out.... */
67 static inline int r2net_link_down(int err, struct socket *sock)
70 if (sock->sk->sk_state != TCP_ESTABLISHED &&
71 sock->sk->sk_state != TCP_CLOSE_WAIT)
79 /* ????????????????????????? */
82 /* When the server has died, an ICMP port unreachable
83 * message prompts ECONNREFUSED. */
95 R2NET_DRIVER_UNINITED,
99 int r2net_send_message(u32 msg_type, u32 key, void *data, u32 len,
100 u8 target_node, int *status);
101 int r2net_send_message_vec(u32 msg_type, u32 key, struct kvec *vec,
102 size_t veclen, u8 target_node, int *status);
104 int r2net_register_handler(u32 msg_type, u32 key, u32 max_len,
105 r2net_msg_handler_func *func, void *data,
106 r2net_post_msg_handler_func *post_func,
107 struct list_head *unreg_list);
108 void r2net_unregister_handler_list(struct list_head *list);
110 void r2net_fill_node_map(unsigned long *map, unsigned bytes);
112 void r2net_force_data_magic(struct r2net_msg *, u16, u32);
113 void r2net_hb_node_up_manual(int);
114 struct r2net_node *r2net_nn_from_num(u8);
117 int r2net_register_hb_callbacks(void);
118 void r2net_unregister_hb_callbacks(void);
119 int r2net_start_listening(struct r2nm_node *node);
120 void r2net_stop_listening(struct r2nm_node *node);
121 void r2net_disconnect_node(struct r2nm_node *node);
122 int r2net_num_connected_peers(void);
124 int r2net_init(void);
125 void r2net_exit(void);
127 struct r2net_send_tracking;
128 struct r2net_sock_container;
131 int r2net_debugfs_init(void);
132 void r2net_debugfs_exit(void);
133 void r2net_debug_add_nst(struct r2net_send_tracking *nst);
134 void r2net_debug_del_nst(struct r2net_send_tracking *nst);
135 void r2net_debug_add_sc(struct r2net_sock_container *sc);
136 void r2net_debug_del_sc(struct r2net_sock_container *sc);
138 static inline int r2net_debugfs_init(void)
142 static inline void r2net_debugfs_exit(void)
145 static inline void r2net_debug_add_nst(struct r2net_send_tracking *nst)
148 static inline void r2net_debug_del_nst(struct r2net_send_tracking *nst)
151 static inline void r2net_debug_add_sc(struct r2net_sock_container *sc)
154 static inline void r2net_debug_del_sc(struct r2net_sock_container *sc)
157 #endif /* CONFIG_DEBUG_FS */
159 #endif /* R2CLUSTER_TCP_H */