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
|
/* This file is part of the program psim.
Copyright (C) 1994-1997, Andrew Cagney <cagney@highland.com.au>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#ifndef _SIM_EVENTS_H_
#define _SIM_EVENTS_H_
typedef void event_handler(void *data);
typedef struct _event_entry event_entry;
struct _event_entry {
void *data;
event_handler *handler;
signed64 time_of_event;
event_entry *next;
};
typedef struct _event_queue event_queue;
struct _event_queue {
int processing;
event_entry *queue;
event_entry *volatile held;
event_entry *volatile *volatile held_end;
signed64 time_of_event;
signed64 time_from_event;
int trace;
};
typedef struct event_entry *event_entry_tag;
/* Initialization */
INLINE_SIM_EVENTS\
(void) event_queue_init
(engine *system);
/* Tracing level */
INLINE_SIM_EVENTS\
(void) event_queue_trace
(engine *system,
int level);
/* (de)Schedule things to happen in the future. */
INLINE_SIM_EVENTS\
(event_entry_tag) event_queue_schedule
(engine *system,
signed64 delta_time,
event_handler *handler,
void *data);
INLINE_SIM_EVENTS\
(event_entry_tag) event_queue_schedule_after_signal
(engine *system,
signed64 delta_time,
event_handler *handler,
void *data);
INLINE_SIM_EVENTS\
(void) event_queue_deschedule
(engine *system,
event_entry_tag event_to_remove);
/* progress time. Broken into two parts so that if something is
pending, the caller has a chance to save any cached state */
INLINE_SIM_EVENTS\
(int) event_queue_tick
(engine *system);
INLINE_SIM_EVENTS\
(void) event_queue_process
(engine *system);
/* local concept of time */
INLINE_SIM_EVENTS\
(signed64) event_queue_time
(engine *system);
#endif
|
