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authorVincent Sanders <vince@kyllikki.org>2016-05-05 22:28:51 +0100
committerVincent Sanders <vince@kyllikki.org>2016-05-15 13:44:34 +0100
commitd21447d096a320a08b3efb2b8768fad0dcdcfd64 (patch)
tree1a83814b7c9e94b2f13c473261f23dd3a17dee64 /atari/schedule.c
parent2cbb337756d9af5bda4d594964d446439f602551 (diff)
downloadnetsurf-d21447d096a320a08b3efb2b8768fad0dcdcfd64.tar.gz
netsurf-d21447d096a320a08b3efb2b8768fad0dcdcfd64.tar.bz2
move frontends into sub directory
Diffstat (limited to 'atari/schedule.c')
-rw-r--r--atari/schedule.c228
1 files changed, 0 insertions, 228 deletions
diff --git a/atari/schedule.c b/atari/schedule.c
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--- a/atari/schedule.c
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@@ -1,228 +0,0 @@
-/*
- * Copyright 2008 Vincent Sanders <vince@simtec.co.uk>
- * Copyright 2011 Ole Loots <ole@monochrom.net>
- *
- * This file is part of NetSurf, http://www.netsurf-browser.org/
- *
- * NetSurf 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; version 2 of the License.
- *
- * NetSurf 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, see <http://www.gnu.org/licenses/>.
- */
-
-#include <stdlib.h>
-#include <string.h>
-#include <time.h>
-
-#include "utils/sys_time.h"
-#include "utils/errors.h"
-
-#include "atari/schedule.h"
-
-#ifdef DEBUG_SCHEDULER
-#include "utils/log.h"
-#else
-#define LOG(x...)
-#endif
-
-#define MS_NOW() ((clock() * 1000) / CLOCKS_PER_SEC)
-
-/* linked list of scheduled callbacks */
-static struct nscallback *schedule_list = NULL;
-
-/**
- * scheduled callback.
- */
-struct nscallback
-{
- struct nscallback *next;
- unsigned long timeout;
- void (*callback)(void *p);
- void *p;
-};
-
-static int max_scheduled;
-static int cur_scheduled;
-
-/**
- * Unschedule a callback.
- *
- * \param callback callback function
- * \param p user parameter, passed to callback function
- *
- * All scheduled callbacks matching both callback and p are removed.
- */
-
-static nserror schedule_remove(void (*callback)(void *p), void *p)
-{
- struct nscallback *cur_nscb;
- struct nscallback *prev_nscb;
- struct nscallback *unlnk_nscb;
-
- /* check there is something on the list to remove */
- if (schedule_list == NULL) {
- return NSERROR_OK;
- }
-
- LOG("removing %p, %p", callback, p);
-
- cur_nscb = schedule_list;
- prev_nscb = NULL;
-
- while (cur_nscb != NULL) {
- if ((cur_nscb->callback == callback) &&
- (cur_nscb->p == p)) {
- /* item to remove */
- LOG("callback entry %p removing %p(%p)", cur_nscb, cur_nscb->callback, cur_nscb->p);
-
- /* remove callback */
- unlnk_nscb = cur_nscb;
- cur_nscb = unlnk_nscb->next;
-
- if (prev_nscb == NULL) {
- schedule_list = cur_nscb;
- } else {
- prev_nscb->next = cur_nscb;
- }
- free (unlnk_nscb);
- cur_scheduled--;
- } else {
- /* move to next element */
- prev_nscb = cur_nscb;
- cur_nscb = prev_nscb->next;
- }
- }
- return NSERROR_OK;
-}
-
-/* exported function documented in atari/schedule.h */
-nserror atari_schedule(int ival, void (*callback)(void *p), void *p)
-{
- struct nscallback *nscb;
- nserror ret;
-
- /* remove any existing callback of this kind */
- ret = schedule_remove(callback, p);
- if ((ival < 0) || (ret != NSERROR_OK)) {
- return ret;
- }
-
- nscb = calloc(1, sizeof(struct nscallback));
-
- nscb->timeout = MS_NOW() + ival;
-
- LOG("adding callback %p for %p(%p) at %d ms", nscb, callback, p, nscb->timeout);
-
- nscb->callback = callback;
- nscb->p = p;
-
- /* add to list front */
- nscb->next = schedule_list;
- schedule_list = nscb;
- cur_scheduled++;
- if( cur_scheduled > max_scheduled ) {
- max_scheduled = cur_scheduled;
- }
-
- return NSERROR_OK;
-}
-
-
-/* exported function documented in atari/schedule.h */
-int schedule_run(void)
-{
- unsigned long nexttime;
- struct nscallback *cur_nscb;
- struct nscallback *prev_nscb;
- struct nscallback *unlnk_nscb;
- unsigned long now = MS_NOW();
-
- if (schedule_list == NULL)
- return -1;
-
- /* reset enumeration to the start of the list */
- cur_nscb = schedule_list;
- prev_nscb = NULL;
- nexttime = cur_nscb->timeout;
-
- while (cur_nscb != NULL) {
- if (now > cur_nscb->timeout) {
- /* scheduled time */
-
- /* remove callback */
- unlnk_nscb = cur_nscb;
- if (prev_nscb == NULL) {
- schedule_list = unlnk_nscb->next;
- } else {
- prev_nscb->next = unlnk_nscb->next;
- }
-
- LOG("callback entry %p running %p(%p)", unlnk_nscb, unlnk_nscb->callback, unlnk_nscb->p);
-
- /* call callback */
- unlnk_nscb->callback(unlnk_nscb->p);
- free(unlnk_nscb);
- cur_scheduled--;
-
- /* need to deal with callback modifying the list. */
- if (schedule_list == NULL) {
- LOG("schedule_list == NULL");
-
- return -1; /* no more callbacks scheduled */
- }
-
- /* reset enumeration to the start of the list */
- cur_nscb = schedule_list;
- prev_nscb = NULL;
- nexttime = cur_nscb->timeout;
- } else {
- /* if the time to the event is sooner than the
- * currently recorded soonest event record it
- */
- if (nexttime > cur_nscb->timeout) {
- nexttime = cur_nscb->timeout;
- }
- /* move to next element */
- prev_nscb = cur_nscb;
- cur_nscb = prev_nscb->next;
- }
- }
-
- /* make rettime relative to now and convert to ms */
- nexttime = nexttime - now;
-
- LOG("returning time to next event as %ldms", nexttime);
-
- /*return next event time in milliseconds (24days max wait) */
- return nexttime;
-}
-
-
-/* exported function documented in atari/schedule.h */
-void list_schedule(void)
-{
- struct nscallback *cur_nscb;
-
- LOG("schedule list at ms clock %ld", MS_NOW());
-
- cur_nscb = schedule_list;
- while (cur_nscb != NULL) {
- LOG("Schedule %p at %ld", cur_nscb, cur_nscb->timeout);
- cur_nscb = cur_nscb->next;
- }
- LOG("Maxmium callbacks scheduled: %d", max_scheduled);
-}
-
-
-/*
- * Local Variables:
- * c-basic-offset:8
- * End:
- */