1/* BGP-4 Finite State Machine
2   From RFC1771 [A Border Gateway Protocol 4 (BGP-4)]
3   Copyright (C) 1998 Kunihiro Ishiguro
4
5This file is part of GNU Zebra.
6
7GNU Zebra is free software; you can redistribute it and/or modify it
8under the terms of the GNU General Public License as published by the
9Free Software Foundation; either version 2, or (at your option) any
10later version.
11
12GNU Zebra is distributed in the hope that it will be useful, but
13WITHOUT ANY WARRANTY; without even the implied warranty of
14MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
15General Public License for more details.
16
17You should have received a copy of the GNU General Public License
18along with GNU Zebra; see the file COPYING.  If not, write to the Free
19Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
2002111-1307, USA.  */
21
22#ifndef _QUAGGA_BGP_FSM_H
23#define _QUAGGA_BGP_FSM_H
24
25/* Macro for BGP read, write and timer thread.  */
26#define BGP_READ_ON(T,F,V)			\
27  do {						\
28    if (!(T) && (peer->status != Deleted))	\
29      THREAD_READ_ON(master,T,F,peer,V);	\
30  } while (0)
31
32#define BGP_READ_OFF(T)				\
33  do {						\
34    if (T)					\
35      THREAD_READ_OFF(T);			\
36  } while (0)
37
38#define BGP_WRITE_ON(T,F,V)			\
39  do {						\
40    if (!(T) && (peer->status != Deleted))	\
41      THREAD_WRITE_ON(master,(T),(F),peer,(V)); \
42  } while (0)
43
44#define BGP_WRITE_OFF(T)			\
45  do {						\
46    if (T)					\
47      THREAD_WRITE_OFF(T);			\
48  } while (0)
49
50#define BGP_TIMER_ON(T,F,V)			\
51  do {						\
52    if (!(T) && (peer->status != Deleted))	\
53      THREAD_TIMER_ON(master,(T),(F),peer,(V)); \
54  } while (0)
55
56#define BGP_TIMER_OFF(T)			\
57  do {						\
58    if (T)					\
59      THREAD_TIMER_OFF(T);			\
60  } while (0)
61
62#define BGP_EVENT_ADD(P,E)			\
63  do {						\
64    if ((P)->status != Deleted)			\
65      thread_add_event (master, bgp_event, (P), (E)); \
66  } while (0)
67
68#define BGP_EVENT_FLUSH(P)			\
69  do { 						\
70    assert (peer); 				\
71    thread_cancel_event (master, (P)); 		\
72  } while (0)
73
74/* Prototypes. */
75extern int bgp_event (struct thread *);
76extern int bgp_stop (struct peer *peer);
77extern void bgp_timer_set (struct peer *);
78extern void bgp_fsm_change_status (struct peer *peer, int status);
79extern const char *peer_down_str[];
80
81#endif /* _QUAGGA_BGP_FSM_H */
82