1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
|
/* $Id: fsm.c,v 1.0 2003/08/27 07:35:31 kkeil Exp $
*
* Author Karsten Keil (keil@isdn4linux.de)
*
* Thanks to Jan den Ouden
* Fritz Elfert
*
* This file is (c) under GNU PUBLIC LICENSE
*
*/
#include <stdio.h>
#include <stdlib.h>
#include "fsm.h"
#define FSM_TIMER_DEBUG 0
void
FsmNew(struct Fsm *fsm,
struct FsmNode *fnlist, int fncount)
{
int i;
fsm->jumpmatrix = (FSMFNPTR *)
malloc(sizeof (FSMFNPTR) * fsm->state_count * fsm->event_count);
if (!fsm->jumpmatrix)
return;
memset(fsm->jumpmatrix, 0, sizeof (FSMFNPTR) * fsm->state_count * fsm->event_count);
for (i = 0; i < fncount; i++)
if ((fnlist[i].state>=fsm->state_count) || (fnlist[i].event>=fsm->event_count)) {
eprint("FsmNew Error line %d st(%ld/%ld) ev(%ld/%ld)\n",
i,(long)fnlist[i].state,(long)fsm->state_count,
(long)fnlist[i].event,(long)fsm->event_count);
} else
fsm->jumpmatrix[fsm->state_count * fnlist[i].event +
fnlist[i].state] = (FSMFNPTR) fnlist[i].routine;
}
void
FsmFree(struct Fsm *fsm)
{
free(fsm->jumpmatrix);
}
int
FsmEvent(struct FsmInst *fi, int event, void *arg)
{
FSMFNPTR r;
if ((fi->state>=fi->fsm->state_count) || (event >= fi->fsm->event_count)) {
eprint("FsmEvent Error st(%ld/%ld) ev(%d/%ld)\n",
(long)fi->state,(long)fi->fsm->state_count,event,(long)fi->fsm->event_count);
return(1);
}
r = fi->fsm->jumpmatrix[fi->fsm->state_count * event + fi->state];
if (r) {
if (fi->debug)
fi->printdebug(fi, "State %s Event %s",
fi->fsm->strState[fi->state],
fi->fsm->strEvent[event]);
r(fi, event, arg);
return (0);
} else {
if (fi->debug)
fi->printdebug(fi, "State %s Event %s no action",
fi->fsm->strState[fi->state],
fi->fsm->strEvent[event]);
return (!0);
}
}
void
FsmChangeState(struct FsmInst *fi, int newstate)
{
fi->state = newstate;
if (fi->debug)
fi->printdebug(fi, "ChangeState %s",
fi->fsm->strState[newstate]);
}
static int
FsmExpireTimer(struct FsmTimer *ft)
{
#if FSM_TIMER_DEBUG
if (ft->fi->debug)
ft->fi->printdebug(ft->fi, "FsmExpireTimer %lx", (long) ft);
#endif
FsmEvent(ft->fi, ft->event, ft->arg);
return(0);
}
void
FsmInitTimer(struct FsmInst *fi, struct FsmTimer *ft)
{
ft->fi = fi;
ft->tl.function = (void *)FsmExpireTimer;
ft->tl.data = (long) ft;
#if FSM_TIMER_DEBUG
if (ft->fi->debug)
ft->fi->printdebug(ft->fi, "FsmInitTimer %lx", (long) ft);
#endif
init_timer(&ft->tl, ft->fi->nst);
}
void
FsmDelTimer(struct FsmTimer *ft, int where)
{
#if FSM_TIMER_DEBUG
if (ft->fi->debug)
ft->fi->printdebug(ft->fi, "FsmDelTimer %lx %d", (long) ft, where);
#endif
del_timer(&ft->tl);
}
void
FsmRemoveTimer(struct FsmTimer *ft)
{
remove_timer(&ft->tl);
}
int
FsmAddTimer(struct FsmTimer *ft,
int millisec, int event, void *arg, int where)
{
#if FSM_TIMER_DEBUG
if (ft->fi->debug)
ft->fi->printdebug(ft->fi, "FsmAddTimer %lx %d %d",
(long) ft, millisec, where);
#endif
if (timer_pending(&ft->tl)) {
wprint("FsmAddTimer: timer already active!\n");
ft->fi->printdebug(ft->fi, "FsmAddTimer already active!");
return -1;
}
init_timer(&ft->tl, ft->fi->nst);
ft->event = event;
ft->arg = arg;
ft->tl.expires = millisec;
add_timer(&ft->tl);
return 0;
}
void
FsmRestartTimer(struct FsmTimer *ft,
int millisec, int event, void *arg, int where)
{
#if FSM_TIMER_DEBUG
if (ft->fi->debug)
ft->fi->printdebug(ft->fi, "FsmRestartTimer %lx %d %d",
(long) ft, millisec, where);
#endif
if (timer_pending(&ft->tl))
del_timer(&ft->tl);
init_timer(&ft->tl, ft->fi->nst);
ft->event = event;
ft->arg = arg;
ft->tl.expires = millisec;
add_timer(&ft->tl);
}
|
