80486DX2-66/86Box-fork
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Timer: Make sure timer_on_auto() to use timer_advance_u64() instead of timer_set_delay_u64() if it's called inside a callback.

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OBattler
2024-05-04 18:48:44 +02:00
parent bd55fdb96b
commit ccc788ff98
2 changed files with 19 additions and 10 deletions
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2
src/include/86box/timer.h
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@@ -43,7 +43,7 @@ typedef struct pc_timer_t {
ts_t ts;
#endif
int flags; /* The flags are defined above. */
int pad;
int in_callback;
double period; /* This is used for large period timers to count
the microseconds and split the period. */

27
src/timer.c
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@@ -94,6 +94,7 @@ timer_disable(pc_timer_t *timer)
fatal("timer_disable - !timer->next\n");
timer->flags &= ~TIMER_ENABLED;
timer->in_callback = 0;
if (timer->prev)
timer->prev->next = timer->next;
@@ -127,11 +128,15 @@ timer_process(void)
if (timer->flags & TIMER_SPLIT)
timer_advance_ex(timer, 0); /* We're splitting a > 1 s period into
multiple <= 1 s periods. */
else if (timer->callback != NULL) /* Make sure it's not NULL, so that we can
have a NULL callback when no operation
is needed. */
multiple <= 1 s periods. */
else if (timer->callback != NULL) {
/* Make sure it's not NULL, so that we can
have a NULL callback when no operation
is needed. */
timer->in_callback = 1;
timer->callback(timer->priv);
timer->in_callback = 0;
}
}
timer_target = timer_head->ts.ts32.integer;
@@ -171,10 +176,11 @@ timer_add(pc_timer_t *timer, void (*callback)(void *priv), void *priv, int start
{
memset(timer, 0, sizeof(pc_timer_t));
timer->callback = callback;
timer->priv = priv;
timer->flags = 0;
timer->prev = timer->next = NULL;
timer->callback = callback;
timer->in_callback = 0;
timer->priv = priv;
timer->flags = 0;
timer->prev = timer->next = NULL;
if (start_timer)
timer_set_delay_u64(timer, 0);
}
@@ -189,6 +195,7 @@ timer_stop(pc_timer_t *timer)
timer->period = 0.0;
timer_disable(timer);
timer->flags &= ~TIMER_SPLIT;
timer->in_callback = 0;
}
static void
@@ -240,7 +247,9 @@ timer_on_auto(pc_timer_t *timer, double period)
return;
if (period > 0.0)
timer_on(timer, period, timer->period <= 0.0);
/* If the timer is in the callback, signal that, so that timer_advance_u64()
is used instead of timer_set_delay_u64(). */
timer_on(timer, period, (timer->period <= 0.0) && !timer->in_callback);
else
timer_stop(timer);
}