125 lines
3.6 KiB
C
125 lines
3.6 KiB
C
/*
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* Copyright (C) 1997-2004, Michael Jennings
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to
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* deal in the Software without restriction, including without limitation the
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* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
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* sell copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies of the Software, its documentation and marketing & publicity
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* materials, and acknowledgment shall be given in the documentation, materials
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* and software packages that this Software was used.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
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* IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*/
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static const char cvs_ident[] = "$Id$";
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#include "config.h"
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#include "feature.h"
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#include <stdlib.h>
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#include <unistd.h>
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#include <errno.h>
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#include <limits.h>
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#include "startup.h"
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#include "command.h"
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#include "events.h"
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#include "options.h"
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#include "pixmap.h"
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#include "timer.h"
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static etimer_t *timers = NULL;
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timerhdl_t
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timer_add(unsigned long msec, timer_handler_t handler, void *data)
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{
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static etimer_t *timer;
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struct timeval tv;
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if (!timers) {
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timers = (etimer_t *) MALLOC(sizeof(etimer_t));
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timer = timers;
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timer->next = NULL;
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} else {
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timer = (etimer_t *) MALLOC(sizeof(etimer_t));
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timer->next = timers;
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timers = timer;
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}
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timer->msec = msec;
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gettimeofday(&tv, NULL);
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timer->time.tv_sec = (msec / 1000) + tv.tv_sec;
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timer->time.tv_usec = ((msec % 1000) * 1000) + tv.tv_usec;
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timer->handler = handler;
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timer->data = data;
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D_TIMER(("Added timer. Timer set to %lu/%lu with handler %8p and data %8p\n", timer->time.tv_sec, timer->time.tv_usec,
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timer->handler, timer->data));
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return ((timerhdl_t) timer);
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}
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unsigned char
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timer_del(timerhdl_t handle)
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{
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register etimer_t *current;
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etimer_t *temp;
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if (timers == handle) {
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timers = handle->next;
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FREE(handle);
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return 1;
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}
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for (current = timers; current->next; current = current->next) {
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if (current->next == handle) {
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break;
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}
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}
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if (!(current->next)) {
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return 0;
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}
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temp = current->next;
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current->next = temp->next;
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FREE(temp);
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return 1;
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}
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unsigned char
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timer_change_delay(timerhdl_t handle, unsigned long msec)
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{
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struct timeval tv;
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handle->msec = msec;
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gettimeofday(&tv, NULL);
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handle->time.tv_sec = (msec / 1000) + tv.tv_sec;
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handle->time.tv_usec = ((msec % 1000) * 1000) + tv.tv_usec;
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return 1;
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}
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void
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timer_check(void)
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{
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register etimer_t *current;
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struct timeval tv;
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REQUIRE(timers);
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gettimeofday(&tv, NULL);
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for (current = timers; current; current = current->next) {
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if ((current->time.tv_sec > tv.tv_sec) || ((current->time.tv_sec == tv.tv_sec) && (current->time.tv_usec >= tv.tv_usec))) {
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if (!((current->handler) (current->data))) {
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timer_del(current);
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} else {
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timer_change_delay(current, current->msec);
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}
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}
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}
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}
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