164 lines
3.1 KiB
C
164 lines
3.1 KiB
C
/*****************************************************************************
|
|
*
|
|
* $Id: timers.c,v 1.3 2004/02/21 14:24:04 mbroek Exp $
|
|
* Purpose ...............: General Purpose Timers
|
|
*
|
|
*****************************************************************************
|
|
* Copyright (C) 1997-2004
|
|
*
|
|
* Michiel Broek FIDO: 2:280/2802
|
|
* Beekmansbos 10
|
|
* 1971 BV IJmuiden
|
|
* the Netherlands
|
|
*
|
|
* This file is part of MBSE BBS.
|
|
*
|
|
* This BBS 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, or (at your option) any
|
|
* later version.
|
|
*
|
|
* MBSE BBS 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 MBSE BBS; see the file COPYING. If not, write to the Free
|
|
* Software Foundation, 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
|
|
*****************************************************************************/
|
|
|
|
#include "../config.h"
|
|
#include "mbselib.h"
|
|
|
|
|
|
/*
|
|
* Number of timers
|
|
*/
|
|
#define GENTIMERS 3
|
|
|
|
static time_t gentimer[GENTIMERS];
|
|
|
|
|
|
/*
|
|
* Reset a timer
|
|
*/
|
|
int gpt_resettimer(int tno)
|
|
{
|
|
if (tno >= GENTIMERS) {
|
|
errno = EINVAL;
|
|
WriteError("invalid timer number for gpt_resettimer(%d)", tno);
|
|
return -1;
|
|
}
|
|
|
|
gentimer[tno] = (time_t) 0;
|
|
return 0;
|
|
}
|
|
|
|
|
|
|
|
void gpt_resettimers(void)
|
|
{
|
|
int i;
|
|
|
|
for (i = 0; i < GENTIMERS; i++)
|
|
gpt_resettimer(i);
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
* Set timer
|
|
*/
|
|
int gpt_settimer(int tno, int interval)
|
|
{
|
|
if (tno >= GENTIMERS) {
|
|
errno = EINVAL;
|
|
WriteError("invalid timer number for gpt_settimer(%d)", tno);
|
|
return -1;
|
|
}
|
|
|
|
gentimer[tno] = time((time_t*)NULL) + interval;
|
|
return 0;
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
* Check if timer is expired
|
|
*/
|
|
int gpt_expired(int tno)
|
|
{
|
|
time_t now;
|
|
|
|
if (tno >= GENTIMERS) {
|
|
errno = EINVAL;
|
|
WriteError("invalid timer number for gpt_expired(%d)", tno);
|
|
return -1;
|
|
}
|
|
|
|
/*
|
|
* Check if timer is running
|
|
*/
|
|
if (gentimer[tno] == (time_t) 0)
|
|
return 0;
|
|
|
|
now = time(NULL);
|
|
return (now >= gentimer[tno]);
|
|
}
|
|
|
|
|
|
|
|
int gpt_running(int tno)
|
|
{
|
|
if (tno >= GENTIMERS) {
|
|
errno = EINVAL;
|
|
WriteError("invalid timer number for gpt_running(%d)", tno);
|
|
return -1;
|
|
}
|
|
|
|
if (gentimer[tno] == (time_t) 0)
|
|
return 0;
|
|
else
|
|
return 1;
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
* Milliseconds timer, returns 0 on success.
|
|
*/
|
|
int msleep(int msecs)
|
|
{
|
|
int rc;
|
|
struct timespec req, rem;
|
|
|
|
rem.tv_sec = 0;
|
|
rem.tv_nsec = 0;
|
|
req.tv_sec = msecs / 1000;
|
|
req.tv_nsec = (msecs % 1000) * 1000000;
|
|
|
|
while (TRUE) {
|
|
|
|
rc = nanosleep(&req, &rem);
|
|
if (rc == 0)
|
|
break;
|
|
if ((errno == EINVAL) || (errno == EFAULT)) {
|
|
WriteError("$msleep(%d)", msecs);
|
|
break;
|
|
}
|
|
|
|
/*
|
|
* Error was EINTR, run timer again to complete.
|
|
*/
|
|
req.tv_sec = rem.tv_sec;
|
|
req.tv_nsec = rem.tv_nsec;
|
|
rem.tv_sec = 0;
|
|
rem.tv_nsec = 0;
|
|
}
|
|
|
|
return rc;
|
|
}
|
|
|
|
|