167 lines
3.1 KiB
C
167 lines
3.1 KiB
C
/*****************************************************************************
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*
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* $Id$
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* Purpose ...............: General Purpose Timers
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*
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*****************************************************************************
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* Copyright (C) 1997-2004
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*
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* Michiel Broek FIDO: 2:280/2802
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* Beekmansbos 10
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* 1971 BV IJmuiden
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* the Netherlands
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*
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* This file is part of MBSE BBS.
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*
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* This BBS is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation; either version 2, or (at your option) any
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* later version.
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*
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* MBSE BBS is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with MBSE BBS; see the file COPYING. If not, write to the Free
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* Software Foundation, 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
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*****************************************************************************/
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#include "../config.h"
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#include "libs.h"
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#include "structs.h"
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#include "clcomm.h"
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#include "common.h"
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/*
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* Number of timers
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*/
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#define GENTIMERS 3
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static time_t gentimer[GENTIMERS];
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/*
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* Reset a timer
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*/
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int gpt_resettimer(int tno)
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{
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if (tno >= GENTIMERS) {
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errno = EINVAL;
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WriteError("invalid timer number for gpt_resettimer(%d)", tno);
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return -1;
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}
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gentimer[tno] = (time_t) 0;
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return 0;
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}
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void gpt_resettimers(void)
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{
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int i;
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for (i = 0; i < GENTIMERS; i++)
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gpt_resettimer(i);
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}
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/*
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* Set timer
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*/
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int gpt_settimer(int tno, int interval)
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{
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if (tno >= GENTIMERS) {
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errno = EINVAL;
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WriteError("invalid timer number for gpt_settimer(%d)", tno);
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return -1;
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}
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gentimer[tno] = time((time_t*)NULL) + interval;
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return 0;
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}
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/*
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* Check if timer is expired
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*/
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int gpt_expired(int tno)
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{
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time_t now;
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if (tno >= GENTIMERS) {
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errno = EINVAL;
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WriteError("invalid timer number for gpt_expired(%d)", tno);
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return -1;
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}
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/*
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* Check if timer is running
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*/
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if (gentimer[tno] == (time_t) 0)
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return 0;
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now = time(NULL);
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return (now >= gentimer[tno]);
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}
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int gpt_running(int tno)
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{
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if (tno >= GENTIMERS) {
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errno = EINVAL;
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WriteError("invalid timer number for gpt_running(%d)", tno);
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return -1;
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}
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if (gentimer[tno] == (time_t) 0)
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return 0;
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else
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return 1;
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}
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/*
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* Milliseconds timer, returns 0 on success.
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*/
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int msleep(int msecs)
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{
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int rc;
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struct timespec req, rem;
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rem.tv_sec = 0;
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rem.tv_nsec = 0;
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req.tv_sec = msecs / 1000;
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req.tv_nsec = (msecs % 1000) * 1000000;
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while (TRUE) {
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rc = nanosleep(&req, &rem);
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if (rc == 0)
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break;
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if ((errno == EINVAL) || (errno == EFAULT)) {
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WriteError("$msleep(%d)", msecs);
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break;
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}
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/*
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* Error was EINTR, run timer again to complete.
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*/
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req.tv_sec = rem.tv_sec;
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req.tv_nsec = rem.tv_nsec;
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rem.tv_sec = 0;
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rem.tv_nsec = 0;
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}
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return rc;
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}
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