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Apply timeouts.c simplification from Douglas

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Use TIME_LESS_THAN() macro instead of TIME_LESS_OR_EQUAL_THAN, it is more readable and results equivalent
This commit is contained in:
Dirk Ziegelmeier 2018-01-08 11:16:51 +01:00
parent b6c0c52d66
commit 5eced48869
1 changed files with 7 additions and 7 deletions
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14
src/core/timeouts.c
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@ -67,7 +67,7 @@
#endif /* LWIP_DEBUG_TIMERNAMES */
/* Check if timer's expiry time is greater than time and care about u32_t wraparounds */
#define TIME_LESS_OR_EQUAL_THAN(t, compare_to) ( (((t) == (compare_to)) || (((u32_t)((t)-(compare_to))) > 0x7fffffff)) ? 1 : 0 )
#define TIME_LESS_THAN(t, compare_to) ( (((u32_t)((t)-(compare_to))) > 0x7fffffff) ? 1 : 0 )
/** This array contains all stack-internal cyclic timers. To get the number of
* timers, use LWIP_ARRAYSIZE() */
@ -192,7 +192,7 @@ lwip_cyclic_timer(void *arg)
now = sys_now();
next_timeout_time = (u32_t)(current_timeout_due_time + cyclic->interval_ms);
if (TIME_LESS_OR_EQUAL_THAN(next_timeout_time, now)) {
if (TIME_LESS_THAN(next_timeout_time, now)) {
/* timer would immediately expire again -> "overload" -> restart without any correction */
sys_timeout(cyclic->interval_ms, lwip_cyclic_timer, arg);
} else {
@ -247,7 +247,7 @@ sys_timeout(u32_t msecs, sys_timeout_handler handler, void *arg)
timeout->next = NULL;
timeout->h = handler;
timeout->arg = arg;
timeout->time = (u32_t)(now + msecs); /* overflow handled by TIME_LESS_OR_EQUAL_THAN macro */
timeout->time = (u32_t)(now + msecs); /* overflow handled by TIME_LESS_THAN macro */
#if LWIP_DEBUG_TIMERNAMES
timeout->handler_name = handler_name;
LWIP_DEBUGF(TIMERS_DEBUG, ("sys_timeout: %p msecs=%"U32_F" handler=%s arg=%p\n",
@ -258,12 +258,12 @@ sys_timeout(u32_t msecs, sys_timeout_handler handler, void *arg)
next_timeout = timeout;
return;
}
if (TIME_LESS_OR_EQUAL_THAN(timeout->time, next_timeout->time)) {
if (TIME_LESS_THAN(timeout->time, next_timeout->time)) {
timeout->next = next_timeout;
next_timeout = timeout;
} else {
for (t = next_timeout; t != NULL; t = t->next) {
if ((t->next == NULL) || TIME_LESS_OR_EQUAL_THAN(timeout->time, t->next->time)) {
if ((t->next == NULL) || TIME_LESS_THAN(timeout->time, t->next->time)) {
timeout->next = t->next;
t->next = timeout;
break;
@ -340,7 +340,7 @@ sys_check_timeouts(void)
return;
}
if (TIME_LESS_OR_EQUAL_THAN(tmptimeout->time, now) == 0) {
if (TIME_LESS_THAN(now, tmptimeout->time)) {
return;
}
@ -406,7 +406,7 @@ sys_timeouts_sleeptime(void)
return 0xffffffff;
}
now = sys_now();
if (TIME_LESS_OR_EQUAL_THAN(next_timeout->time, now)) {
if (TIME_LESS_THAN(next_timeout->time, now)) {
return 0;
} else {
return (u32_t)(next_timeout->time - now);