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Small optimization. 

git-svn-id: svn://svn.code.sf.net/p/chibios/svn/trunk@14363 27425a3e-05d8-49a3-a47f-9c15f0e5edd8
This commit is contained in:
Giovanni Di Sirio 2021-05-11 08:46:52 +00:00
parent 9b1eabb208
commit dabd48d6cc
1 changed files with 12 additions and 11 deletions
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23
os/rt/src/chvt.c
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@ -110,12 +110,6 @@ static void vt_enqueue(virtual_timers_list_t *vtlp,
{
sysinterval_t deltanow;
/* If the requested delay is lower than the minimum safe delta then it
is raised to the minimum safe value.*/
if (delay < (sysinterval_t)CH_CFG_ST_TIMEDELTA) {
delay = (sysinterval_t)CH_CFG_ST_TIMEDELTA;
}
/* Special case where the timers list is empty.*/
if (ch_dlist_isempty(&vtlp->dlist)) {
@ -124,9 +118,17 @@ static void vt_enqueue(virtual_timers_list_t *vtlp,
vtlp->lasttime = now;
ch_dlist_insert_after(&vtlp->dlist, &vtp->dlist, delay);
/* If the requested delay is lower than the minimum safe delta then it
is raised to the minimum safe value.*/
if (delay < (sysinterval_t)CH_CFG_ST_TIMEDELTA) {
/* We need to avoid that the system time goes past the alarm we are
going to set before the alarm is actually set.*/
delay = (sysinterval_t)CH_CFG_ST_TIMEDELTA;
}
#if CH_CFG_INTERVALS_SIZE > CH_CFG_ST_RESOLUTION
/* The delta could be too large for the physical timer to handle.*/
if (delay > (sysinterval_t)TIME_MAX_SYSTIME) {
else if (delay > (sysinterval_t)TIME_MAX_SYSTIME) {
/* The delta could be too large for the physical timer to handle
this can happen when: sizeof (systime_t) < sizeof (sysinterval_t).*/
delay = (sysinterval_t)TIME_MAX_SYSTIME;
}
#endif
@ -482,9 +484,8 @@ void chVTDoTickI(void) {
}
/* The callback is invoked outside the kernel critical section, it
is re-entered on the callback return. Note that "lasttime" can
be modified within the callback if some timer function is
called.*/
is re-entered on the callback return. Note that "lasttime" can be
modified within the callback if some timer function is called.*/
chSysUnlockFromISR();
vtp->func(vtp, vtp->par);
chSysLockFromISR();