178 lines
4.2 KiB
C
178 lines
4.2 KiB
C
/*
|
|
* Copyright (c) 1980, 1993
|
|
* The Regents of the University of California. All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
* 3. All advertising materials mentioning features or use of this software
|
|
* must display the following acknowledgement:
|
|
* This product includes software developed by the University of
|
|
* California, Berkeley and its contributors.
|
|
* 4. Neither the name of the University nor the names of its contributors
|
|
* may be used to endorse or promote products derived from this software
|
|
* without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
|
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
|
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
* SUCH DAMAGE.
|
|
*/
|
|
|
|
#ifndef lint
|
|
#if 0
|
|
static char sccsid[] = "@(#)schedule.c 8.1 (Berkeley) 5/31/93";
|
|
#endif
|
|
static const char rcsid[] =
|
|
"$FreeBSD$";
|
|
#endif /* not lint */
|
|
|
|
# include "trek.h"
|
|
|
|
/*
|
|
** SCHEDULE AN EVENT
|
|
**
|
|
** An event of type 'type' is scheduled for time NOW + 'offset'
|
|
** into the first available slot. 'x', 'y', and 'z' are
|
|
** considered the attributes for this event.
|
|
**
|
|
** The address of the slot is returned.
|
|
*/
|
|
|
|
struct event *schedule(type, offset, x, y, z)
|
|
int type;
|
|
double offset;
|
|
char x, y;
|
|
char z;
|
|
{
|
|
struct event *e;
|
|
int i;
|
|
double date;
|
|
|
|
date = Now.date + offset;
|
|
for (i = 0; i < MAXEVENTS; i++)
|
|
{
|
|
e = &Event[i];
|
|
if (e->evcode)
|
|
continue;
|
|
/* got a slot */
|
|
# ifdef xTRACE
|
|
if (Trace)
|
|
printf("schedule: type %d @ %.2f slot %d parm %d %d %d\n",
|
|
type, date, i, x, y, z);
|
|
# endif
|
|
e->evcode = type;
|
|
e->date = date;
|
|
e->x = x;
|
|
e->y = y;
|
|
e->systemname = z;
|
|
Now.eventptr[type] = e;
|
|
return (e);
|
|
}
|
|
syserr("Cannot schedule event %d parm %d %d %d", type, x, y, z);
|
|
}
|
|
|
|
|
|
/*
|
|
** RESCHEDULE AN EVENT
|
|
**
|
|
** The event pointed to by 'e' is rescheduled to the current
|
|
** time plus 'offset'.
|
|
*/
|
|
|
|
reschedule(e1, offset)
|
|
struct event *e1;
|
|
double offset;
|
|
{
|
|
double date;
|
|
struct event *e;
|
|
|
|
e = e1;
|
|
|
|
date = Now.date + offset;
|
|
e->date = date;
|
|
# ifdef xTRACE
|
|
if (Trace)
|
|
printf("reschedule: type %d parm %d %d %d @ %.2f\n",
|
|
e->evcode, e->x, e->y, e->systemname, date);
|
|
# endif
|
|
return;
|
|
}
|
|
|
|
|
|
/*
|
|
** UNSCHEDULE AN EVENT
|
|
**
|
|
** The event at slot 'e' is deleted.
|
|
*/
|
|
|
|
unschedule(e1)
|
|
struct event *e1;
|
|
{
|
|
struct event *e;
|
|
|
|
e = e1;
|
|
|
|
# ifdef xTRACE
|
|
if (Trace)
|
|
printf("unschedule: type %d @ %.2f parm %d %d %d\n",
|
|
e->evcode, e->date, e->x, e->y, e->systemname);
|
|
# endif
|
|
Now.eventptr[e->evcode & E_EVENT] = 0;
|
|
e->date = 1e50;
|
|
e->evcode = 0;
|
|
return;
|
|
}
|
|
|
|
|
|
/*
|
|
** Abreviated schedule routine
|
|
**
|
|
** Parameters are the event index and a factor for the time
|
|
** figure.
|
|
*/
|
|
|
|
struct event *xsched(ev1, factor, x, y, z)
|
|
int ev1;
|
|
int factor;
|
|
int x, y, z;
|
|
{
|
|
int ev;
|
|
|
|
ev = ev1;
|
|
return (schedule(ev, -Param.eventdly[ev] * Param.time * log(franf()) / factor, x, y, z));
|
|
}
|
|
|
|
|
|
/*
|
|
** Simplified reschedule routine
|
|
**
|
|
** Parameters are the event index, the initial date, and the
|
|
** division factor. Look at the code to see what really happens.
|
|
*/
|
|
|
|
xresched(e1, ev1, factor)
|
|
struct event *e1;
|
|
int ev1;
|
|
int factor;
|
|
{
|
|
int ev;
|
|
struct event *e;
|
|
|
|
ev = ev1;
|
|
e = e1;
|
|
reschedule(e, -Param.eventdly[ev] * Param.time * log(franf()) / factor);
|
|
}
|