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118 lines
3.3 KiB
C
118 lines
3.3 KiB
C
/*
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* Copyright (C) 2017 Freie Universität Berlin
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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 evtimer_msg test application
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*
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* @author Martine Lenders <m.lenders@fu-berlin.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 "evtimer_msg.h"
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#include "thread.h"
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#include "msg.h"
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#include "ztimer.h"
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static char worker_stack[THREAD_STACKSIZE_MAIN];
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static evtimer_t evtimer;
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#define NEVENTS (unsigned)(4)
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/*
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* The events (.offset) are modified by evtimer_add.
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* This list of offsets is used to populate the events
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* before adding (or re-adding).
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*/
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static uint32_t offsets[NEVENTS] = {
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1000,
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1500,
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659,
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3954,
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};
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static evtimer_msg_event_t events[NEVENTS];
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static char texts[NEVENTS][40];
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/* This thread will print the drift to stdout once per second */
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void *worker_thread(void *arg)
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{
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int count = 0;
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(void) arg;
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while (1) {
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char *ctx;
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msg_t m;
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uint32_t now;
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msg_receive(&m);
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now = evtimer_now_msec();
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ctx = m.content.ptr;
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printf("At %6" PRIu32 " ms received msg %i: \"%s\"\n", now, count++, ctx);
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}
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}
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int main(void)
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{
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uint32_t now;
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evtimer_init_msg(&evtimer);
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/* create worker thread */
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kernel_pid_t pid = thread_create(worker_stack, sizeof(worker_stack),
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THREAD_PRIORITY_MAIN - 1,
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THREAD_CREATE_STACKTEST,
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worker_thread, NULL, "worker");
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printf("Testing generic evtimer\n");
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/* Add all the events */
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for (unsigned i = 0; i < NEVENTS; i++) {
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events[i].event.offset = offsets[i];
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now = evtimer_now_msec();
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snprintf(texts[i], sizeof(texts[i]) - 1, "#%u supposed to be %" PRIu32, i, now + events[i].event.offset);
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events[i].msg.content.ptr = texts[i];
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evtimer_add_msg(&evtimer, &events[i], pid);
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}
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/* Delete all the events */
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/* First we delete the last, to test deleting the last */
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/* Then we delete the first, to test deleting the first */
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evtimer_del(&evtimer, &events[3].event);
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evtimer_del(&evtimer, &events[2].event);
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printf("This should list %u items\n", NEVENTS - 2);
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evtimer_print(&evtimer);
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/* Delete the remaining entries */
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for (unsigned i = 0; i < NEVENTS; i++) {
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evtimer_del(&evtimer, &events[i].event);
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}
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/* Add all the events, again */
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for (unsigned i = 0; i < NEVENTS; i++) {
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events[i].event.offset = offsets[i];
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now = evtimer_now_msec();
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snprintf(texts[i], sizeof(texts[i]) - 1, "#%u supposed to be %" PRIu32, i, now + events[i].event.offset);
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events[i].msg.content.ptr = texts[i];
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evtimer_add_msg(&evtimer, &events[i], pid);
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}
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printf("This should list %u items\n", NEVENTS);
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evtimer_print(&evtimer);
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printf("Are the reception times of all %u msgs close to the supposed values?\n",
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NEVENTS);
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/* The last offset is the largest, wait for it and a tiny bit more */
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ztimer_sleep(ZTIMER_MSEC, (offsets[3] + 10));
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puts("By now all msgs should have been received");
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puts("If yes, the tests were successful");
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}
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