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-rw-r--r--windows/schedule.c218
1 files changed, 118 insertions, 100 deletions
diff --git a/windows/schedule.c b/windows/schedule.c
index 5414f6d56..a37a0e051 100644
--- a/windows/schedule.c
+++ b/windows/schedule.c
@@ -20,32 +20,20 @@
#include <time.h>
#include "desktop/browser.h"
-#include "windows/schedule.h"
+#include "framebuffer/schedule.h"
#include "utils/log.h"
+#include "utils/utils.h"
/* linked list of scheduled callbacks */
static struct nscallback *schedule_list = NULL;
-#ifndef timeradd
-#define timeradd(a, aa, result) \
- do {\
- (result)->tv_sec = (a)->tv_sec + (aa)->tv_sec;\
- (result)->tv_usec = (a)->tv_usec + (aa)->tv_usec;\
- if ((result)->tv_usec >= 1000000)\
- {\
- ++(result)->tv_sec;\
- (result)->tv_usec -= 1000000;\
- }\
- } while (0)
-#endif
-
/**
* scheduled callback.
*/
struct nscallback
{
- struct nscallback *next;
+ struct nscallback *next;
struct timeval tv;
void (*callback)(void *p);
void *p;
@@ -57,7 +45,7 @@ struct nscallback
*
* \param tival interval before the callback should be made / cs
* \param callback callback function
- * \param p user parameter, passed to callback function
+ * \param p user parameter, passed to callback function
*
* The callback function will be called as soon as possible after t cs have
* passed.
@@ -68,8 +56,8 @@ void schedule(int cs_ival, void (*callback)(void *p), void *p)
struct nscallback *nscb;
struct timeval tv;
- tv.tv_sec = 0;
- tv.tv_usec = cs_ival * 10000;
+ tv.tv_sec = cs_ival / 100; /* cs to seconds */
+ tv.tv_usec = (cs_ival % 100) * 10000; /* remainder to microseconds */
nscb = calloc(1, sizeof(struct nscallback));
@@ -81,128 +69,158 @@ void schedule(int cs_ival, void (*callback)(void *p), void *p)
nscb->callback = callback;
nscb->p = p;
- /* add to list front */
- nscb->next = schedule_list;
- schedule_list = nscb;
+ /* add to list front */
+ nscb->next = schedule_list;
+ schedule_list = nscb;
}
/**
* Unschedule a callback.
*
* \param callback callback function
- * \param p user parameter, passed to callback function
+ * \param p user parameter, passed to callback function
*
* All scheduled callbacks matching both callback and p are removed.
*/
void schedule_remove(void (*callback)(void *p), void *p)
{
- struct nscallback *cur_nscb;
- struct nscallback *prev_nscb;
- struct nscallback *unlnk_nscb;
+ struct nscallback *cur_nscb;
+ struct nscallback *prev_nscb;
+ struct nscallback *unlnk_nscb;
- if (schedule_list == NULL)
- return;
+ if (schedule_list == NULL)
+ return;
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);
- } else {
- /* move to next element */
- prev_nscb = cur_nscb;
- cur_nscb = prev_nscb->next;
- }
- }
+ 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);
+ } else {
+ /* move to next element */
+ prev_nscb = cur_nscb;
+ cur_nscb = prev_nscb->next;
+ }
+ }
}
/**
- * Process events up to current time.
+ * Process scheduled callbacks up to current time.
+ *
+ * @return The number of milliseconds untill the next scheduled event
+ * or -1 for no event.
*/
-
-bool schedule_run(void)
+int
+schedule_run(void)
{
struct timeval tv;
- struct nscallback *cur_nscb;
- struct nscallback *prev_nscb;
- struct nscallback *unlnk_nscb;
+ struct timeval nexttime;
+ struct timeval rettime;
+ struct nscallback *cur_nscb;
+ struct nscallback *prev_nscb;
+ struct nscallback *unlnk_nscb;
- if (schedule_list == NULL)
- return false;
+ if (schedule_list == NULL)
+ return -1;
- cur_nscb = schedule_list;
- prev_nscb = NULL;
+ /* reset enumeration to the start of the list */
+ cur_nscb = schedule_list;
+ prev_nscb = NULL;
+ nexttime = cur_nscb->tv;
gettimeofday(&tv, NULL);
- while (cur_nscb != NULL) {
- if (timercmp(&tv, &cur_nscb->tv, >)) {
- /* scheduled time */
-
- /* remove callback */
- unlnk_nscb = cur_nscb;
+ while (cur_nscb != NULL) {
+ if (timercmp(&tv, &cur_nscb->tv, >)) {
+ /* scheduled time */
- if (prev_nscb == NULL) {
- schedule_list = unlnk_nscb->next;
- } else {
- prev_nscb->next = unlnk_nscb->next;
- }
+ /* remove callback */
+ unlnk_nscb = cur_nscb;
- LOG(("callback entry %p running %p(%p)",
- unlnk_nscb, unlnk_nscb->callback, unlnk_nscb->p));
- /* call callback */
- unlnk_nscb->callback(unlnk_nscb->p);
+ if (prev_nscb == NULL) {
+ schedule_list = unlnk_nscb->next;
+ } else {
+ prev_nscb->next = unlnk_nscb->next;
+ }
- free (unlnk_nscb);
+ LOG(("callback entry %p running %p(%p)",
+ unlnk_nscb, unlnk_nscb->callback, unlnk_nscb->p));
+ /* call callback */
+ unlnk_nscb->callback(unlnk_nscb->p);
- /* the callback might have modded the list, so start
- * again
+ free(unlnk_nscb);
+
+ /* need to deal with callback modifying the list. */
+ if (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->tv;
+ } else {
+ /* if the time to the event is sooner than the
+ * currently recorded soonest event record it
*/
- cur_nscb = schedule_list;
- prev_nscb = NULL;
-
- } else {
- /* move to next element */
- prev_nscb = cur_nscb;
- cur_nscb = prev_nscb->next;
- }
- }
- return true;
+ if (timercmp(&nexttime, &cur_nscb->tv, >)) {
+ nexttime = cur_nscb->tv;
+ }
+ /* move to next element */
+ prev_nscb = cur_nscb;
+ cur_nscb = prev_nscb->next;
+ }
+ }
+
+ /* make rettime relative to now */
+ timersub(&nexttime, &tv, &rettime);
+
+#if DEBUG_SCHEDULER
+ LOG(("returning time to next event as %ldms",(rettime.tv_sec * 1000) + (rettime.tv_usec / 1000)));
+#endif
+ /* return next event time in milliseconds (24days max wait) */
+ return (rettime.tv_sec * 1000) + (rettime.tv_usec / 1000);
}
void list_schedule(void)
{
struct timeval tv;
- struct nscallback *cur_nscb;
+ struct nscallback *cur_nscb;
gettimeofday(&tv, NULL);
- LOG(("schedule list at %ld:%ld", tv.tv_sec, tv.tv_usec));
+ LOG(("schedule list at %ld:%ld", tv.tv_sec, tv.tv_usec));
- cur_nscb = schedule_list;
+ cur_nscb = schedule_list;
- while (cur_nscb != NULL) {
- LOG(("Schedule %p at %ld:%ld",
- cur_nscb, cur_nscb->tv.tv_sec, cur_nscb->tv.tv_usec));
- cur_nscb = cur_nscb->next;
- }
+ while (cur_nscb != NULL) {
+ LOG(("Schedule %p at %ld:%ld",
+ cur_nscb, cur_nscb->tv.tv_sec, cur_nscb->tv.tv_usec));
+ cur_nscb = cur_nscb->next;
+ }
}
+
+
+/*
+ * Local Variables:
+ * c-basic-offset:8
+ * End:
+ */
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