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trickle: uses random.h and includes some enhancements

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This commit is contained in:
Cenk Gündoğan 2016-04-15 15:12:33 +02:00
parent 26ce9cd95a
commit 1e6b2bcd5d
2 changed files with 10 additions and 16 deletions
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1
Makefile.dep
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@ -76,6 +76,7 @@ ifneq (,$(filter gnrc_rpl,$(USEMODULE)))
endif
ifneq (,$(filter trickle,$(USEMODULE)))
USEMODULE += random
USEMODULE += xtimer
endif

25
sys/trickle/trickle.c
View File

@ -18,6 +18,7 @@
#include <stdlib.h>
#include "inttypes.h"
#include "random.h"
#include "trickle.h"
#define ENABLE_DEBUG (0)
@ -33,27 +34,19 @@ void trickle_callback(trickle_t *trickle)
void trickle_interval(trickle_t *trickle)
{
uint32_t max_interval;
trickle->I = trickle->I * 2;
DEBUG("TRICKLE new Interval %" PRIu32 "\n", trickle->I);
max_interval = trickle->Imin << trickle->Imax;
if (trickle->I == 0) {
DEBUG("%s:%d in %s: [WARNING] Interval was 0\n", RIOT_FILE_RELATIVE,
__LINE__, DEBUG_FUNC);
if (trickle->Imax == 0) {
DEBUG("%s:%d in %s: [WARNING] Imax == 0\n", RIOT_FILE_RELATIVE,
__LINE__, DEBUG_FUNC);
}
trickle->I = (trickle->Imin << trickle->Imax);
if ((trickle->I == 0) || (trickle->I > max_interval)) {
trickle->I = max_interval;
}
if (trickle->I > (trickle->Imin << trickle->Imax)) {
trickle->I = (trickle->Imin << trickle->Imax);
}
DEBUG("trickle: I == %" PRIu32 "\n", trickle->I);
trickle->c = 0;
trickle->t = (trickle->I / 2) + (rand() % ((trickle->I / 2) + 1));
trickle->t = (trickle->I / 2) + (random_uint32() % ((trickle->I / 2) + 1));
trickle->msg_callback_time = trickle->t * SEC_IN_MS;
xtimer_set_msg64(&trickle->msg_callback_timer, trickle->msg_callback_time,
@ -80,7 +73,7 @@ void trickle_start(kernel_pid_t pid, trickle_t *trickle, uint16_t interval_msg_t
trickle->k = k;
trickle->Imin = Imin;
trickle->Imax = Imax;
trickle->I = trickle->Imin + (rand() % (4 * trickle->Imin));
trickle->I = trickle->Imin + (random_uint32() % (4 * trickle->Imin));
trickle->pid = pid;
trickle->msg_interval.content.ptr = (char *)trickle;
trickle->msg_interval.type = interval_msg_type;