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123 lines
3.5 KiB
C
123 lines
3.5 KiB
C
/*
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* Copyright (C) 2013 INRIA
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* Copyright (C) 2014 Kaspar Schleiser
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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 Thread test application
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*
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* @author Oliver Hahm <oliver.hahm@inria.fr>
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* @author Christian Mehlis <mehlis@inf.fu-berlin.de>
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* @author Kaspar Schleiser <kaspar@schleiser.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 <time.h>
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#include "vtimer.h"
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#include "thread.h"
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#include "msg.h"
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#define MAXCOUNT 100
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#define MAXDIFF 10000
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char timer_stack[KERNEL_CONF_STACKSIZE_MAIN*4];
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struct timer_msg {
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vtimer_t timer;
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timex_t interval;
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char *msg;
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timex_t start;
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int count;
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};
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timex_t now;
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struct timer_msg timer_msgs[] = { { .interval = { .seconds = 0, .microseconds = 100000}, .msg = "T1", .start={0}, .count=0 },
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{ .interval = { .seconds = 0, .microseconds = 200000}, .msg = "T2", .start={0}, .count=0 },
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{ .interval = { .seconds = 0, .microseconds = 300000}, .msg = "T3", .start={0}, .count=0 },
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{ .interval = { .seconds = 0, .microseconds = 500000}, .msg = "T4", .start={0}, .count=0 },
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{ .interval = { .seconds = 0, .microseconds = 700000}, .msg = "T5", .start={0}, .count=0 },
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{ .interval = { .seconds = 1, .microseconds = 100000}, .msg = "T6", .start={0}, .count=0 },
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};
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void *timer_thread(void *arg)
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{
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(void) arg;
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printf("This is thread %" PRIkernel_pid "\n", thread_getpid());
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msg_t msgq[16];
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msg_init_queue(msgq, sizeof(msgq));
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while (1) {
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msg_t m;
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msg_receive(&m);
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struct timer_msg *tmsg = (struct timer_msg *) m.content.ptr;
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vtimer_now(&now);
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if (tmsg->start.seconds==0 && tmsg->start.microseconds == 0) {
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printf("Initializing \"%s\".\n", tmsg->msg);
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tmsg->start = now;
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} else {
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tmsg->count++;
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}
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uint64_t should = timex_uint64(tmsg->interval)*tmsg->count+timex_uint64(tmsg->start);
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int64_t diff = should - timex_uint64(now);
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printf("now=%02" PRIu32 ":%02" PRIu32 " -> every %" PRIu32 ".%" PRIu32 "s: %s diff=%" PRId64 "\n",
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now.seconds,
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now.microseconds,
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tmsg->interval.seconds,
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tmsg->interval.microseconds,
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tmsg->msg, diff);
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if (diff > MAXDIFF || diff < -MAXDIFF) {
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printf("WARNING: timer difference %" PRId64 "us exceeds MAXDIFF(%d)!\n", diff, MAXDIFF);
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}
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if (vtimer_set_msg(&tmsg->timer, tmsg->interval, thread_getpid(), tmsg) != 0) {
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puts("something went wrong setting a timer");
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}
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if (tmsg->count >= MAXCOUNT) {
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printf("Maximum count reached. (%d) Exiting.\n", MAXCOUNT);
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break;
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}
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}
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return NULL;
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}
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int main(void)
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{
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msg_t m;
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kernel_pid_t pid = thread_create(
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timer_stack,
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sizeof(timer_stack),
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PRIORITY_MAIN - 1,
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CREATE_STACKTEST,
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timer_thread,
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NULL,
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"timer");
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for (unsigned i = 0; i < sizeof(timer_msgs)/sizeof(struct timer_msg); i++) {
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printf("Sending timer msg %u...\n", i);
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m.content.ptr = (char *) &timer_msgs[i];
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msg_try_send(&m, pid);
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}
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return 0;
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}
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