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4032cf73b0
Having `prev_now` initialized to 0 breaks tests on `arduino-zero` and `arduino-mega2560` as `xtimer_now_usec` is way bigger (72k on `arduino-zero`). Issue found in: * #9052 and proposed fix by ZetaR60 * https://github.com/RIOT-OS/Release-Specs/issues/62#issuecomment-387421737
98 lines
2.0 KiB
C
98 lines
2.0 KiB
C
/*
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* Copyright (C) 2017 HAW Hamburg
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*
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* This file is subject to the terms and conditions of the GNU Lesser
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* General Public License v2.1. See the file LICENSE in the top level
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* directory for more details.
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*/
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/**
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* @ingroup tests
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* @{
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*
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* @file
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* @brief Trickle test application
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*
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* @author Cenk Gündoğan <cenk.guendogan@haw-hamburg.de>
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*
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* @}
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*/
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#include <stdio.h>
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#include "trickle.h"
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#include "thread.h"
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#include "msg.h"
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#define TRICKLE_MSG (0xfeef)
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#define TR_IMIN (8)
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#define TR_IDOUBLINGS (20)
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#define TR_REDCONST (10)
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#define FIRST_ROUND (5)
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#define SECOND_ROUND (12)
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static uint32_t prev_now = 0, prev_diff = 0;
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static bool error = false;
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static void callback(void *args)
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{
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(void) args;
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uint32_t now = xtimer_now_usec();
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uint32_t diff = (uint32_t) (now - prev_now);
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printf("now = %" PRIu32 ", prev_now = %" PRIu32 ", diff = %" PRIu32
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"\n", now, prev_now, diff);
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if (prev_diff >= diff) {
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error = true;
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}
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prev_now = now;
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prev_diff = diff;
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return;
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}
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static trickle_t trickle = { .callback = { .func = &callback,
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.args = NULL } };
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int main(void)
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{
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msg_t msg;
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unsigned counter = 0;
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prev_now = xtimer_now_usec();
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trickle_start(sched_active_pid, &trickle, TRICKLE_MSG, TR_IMIN,
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TR_IDOUBLINGS, TR_REDCONST);
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puts("[START]");
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while (!error) {
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if (counter == FIRST_ROUND) {
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prev_diff = 0;
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trickle_reset_timer(&trickle);
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puts("[TRICKLE_RESET]");
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}
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else if (counter == SECOND_ROUND) {
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puts("[SUCCESS]");
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return 0;
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}
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counter++;
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msg_receive(&msg);
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switch (msg.type) {
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case TRICKLE_MSG:
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trickle_callback((trickle_t *) msg.content.ptr);
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break;
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default:
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break;
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}
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}
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puts("[FAILURE]");
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return 1;
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}
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