forked from Archive/PX4-Autopilot
263 lines
7.4 KiB
C
263 lines
7.4 KiB
C
/***********************************************************************
|
|
* examples/ostest/posixtimer.c
|
|
*
|
|
* Copyright (C) 2007-2009, 2011 Gregory Nutt. All rights reserved.
|
|
* Author: Gregory Nutt <spudmonkey@racsa.co.cr>
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
*
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in
|
|
* the documentation and/or other materials provided with the
|
|
* distribution.
|
|
* 3. Neither the name NuttX nor the names of its contributors may be
|
|
* used to endorse or promote products derived from this software
|
|
* without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
|
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
|
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
|
|
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
|
|
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
|
|
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
|
|
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
|
|
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
|
|
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
|
|
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
|
* POSSIBILITY OF SUCH DAMAGE.
|
|
*
|
|
***********************************************************************/
|
|
|
|
/**************************************************************************
|
|
* Included Files
|
|
**************************************************************************/
|
|
|
|
#include <stdio.h>
|
|
#include <unistd.h>
|
|
#include <semaphore.h>
|
|
#include <signal.h>
|
|
#include <sched.h>
|
|
#include <errno.h>
|
|
#include "ostest.h"
|
|
|
|
/**************************************************************************
|
|
* Private Definitions
|
|
**************************************************************************/
|
|
|
|
#ifndef NULL
|
|
# define NULL (void*)0
|
|
#endif
|
|
|
|
#define MY_TIMER_SIGNAL 17
|
|
#define SIGVALUE_INT 42
|
|
|
|
/**************************************************************************
|
|
* Private Data
|
|
**************************************************************************/
|
|
|
|
static sem_t sem;
|
|
static int g_nsigreceived = 0;
|
|
|
|
/**************************************************************************
|
|
* Private Functions
|
|
**************************************************************************/
|
|
|
|
static void timer_expiration(int signo, siginfo_t *info, void *ucontext)
|
|
{
|
|
sigset_t oldset;
|
|
sigset_t allsigs;
|
|
int status;
|
|
|
|
printf("timer_expiration: Received signal %d\n" , signo);
|
|
|
|
g_nsigreceived++;
|
|
|
|
/* Check signo */
|
|
|
|
if (signo != MY_TIMER_SIGNAL)
|
|
{
|
|
printf("timer_expiration: ERROR expected signo=%d\n" , MY_TIMER_SIGNAL);
|
|
}
|
|
|
|
/* Check siginfo */
|
|
|
|
if (info->si_value.sival_int != SIGVALUE_INT)
|
|
{
|
|
printf("timer_expiration: ERROR sival_int=%d expected %d\n",
|
|
info->si_value.sival_int, SIGVALUE_INT);
|
|
}
|
|
else
|
|
{
|
|
printf("timer_expiration: sival_int=%d\n" , info->si_value.sival_int);
|
|
}
|
|
|
|
if (info->si_signo != MY_TIMER_SIGNAL)
|
|
{
|
|
printf("timer_expiration: ERROR expected si_signo=%d, got=%d\n",
|
|
MY_TIMER_SIGNAL, info->si_signo);
|
|
}
|
|
|
|
if (info->si_code == SI_TIMER)
|
|
{
|
|
printf("timer_expiration: si_code=%d (SI_TIMER)\n" , info->si_code);
|
|
}
|
|
else
|
|
{
|
|
printf("timer_expiration: ERROR si_code=%d, expected SI_TIMER=%d\n",
|
|
info->si_code, SI_TIMER);
|
|
}
|
|
|
|
/* Check ucontext_t */
|
|
|
|
printf("timer_expiration: ucontext=%p\n" , ucontext);
|
|
|
|
/* Check sigprocmask */
|
|
|
|
(void)sigfillset(&allsigs);
|
|
status = sigprocmask(SIG_SETMASK, NULL, &oldset);
|
|
if (status != OK)
|
|
{
|
|
printf("timer_expiration: ERROR sigprocmask failed, status=%d\n",
|
|
status);
|
|
}
|
|
|
|
if (oldset != allsigs)
|
|
{
|
|
printf("timer_expiration: ERROR sigprocmask=%x expected=%x\n",
|
|
oldset, allsigs);
|
|
}
|
|
|
|
}
|
|
|
|
/**************************************************************************
|
|
* Public Functions
|
|
**************************************************************************/
|
|
|
|
void timer_test(void)
|
|
{
|
|
sigset_t sigset;
|
|
struct sigaction act;
|
|
struct sigaction oact;
|
|
struct sigevent notify;
|
|
struct itimerspec timer;
|
|
timer_t timerid;
|
|
int status;
|
|
int i;
|
|
|
|
printf("timer_test: Initializing semaphore to 0\n" );
|
|
sem_init(&sem, 0, 0);
|
|
|
|
/* Start waiter thread */
|
|
|
|
printf("timer_test: Unmasking signal %d\n" , MY_TIMER_SIGNAL);
|
|
|
|
(void)sigemptyset(&sigset);
|
|
(void)sigaddset(&sigset, MY_TIMER_SIGNAL);
|
|
status = sigprocmask(SIG_UNBLOCK, &sigset, NULL);
|
|
if (status != OK)
|
|
{
|
|
printf("timer_test: ERROR sigprocmask failed, status=%d\n",
|
|
status);
|
|
}
|
|
|
|
printf("timer_test: Registering signal handler\n" );
|
|
act.sa_sigaction = timer_expiration;
|
|
act.sa_flags = SA_SIGINFO;
|
|
|
|
(void)sigfillset(&act.sa_mask);
|
|
(void)sigdelset(&act.sa_mask, MY_TIMER_SIGNAL);
|
|
|
|
status = sigaction(MY_TIMER_SIGNAL, &act, &oact);
|
|
if (status != OK)
|
|
{
|
|
printf("timer_test: ERROR sigaction failed, status=%d\n" , status);
|
|
}
|
|
|
|
#ifndef SDCC
|
|
printf("timer_test: oact.sigaction=%p oact.sa_flags=%x oact.sa_mask=%x\n",
|
|
oact.sa_sigaction, oact.sa_flags, oact.sa_mask);
|
|
#endif
|
|
|
|
/* Create the POSIX timer */
|
|
|
|
printf("timer_test: Creating timer\n" );
|
|
|
|
notify.sigev_notify = SIGEV_SIGNAL;
|
|
notify.sigev_signo = MY_TIMER_SIGNAL;
|
|
notify.sigev_value.sival_int = SIGVALUE_INT;
|
|
|
|
status = timer_create(CLOCK_REALTIME, ¬ify, &timerid);
|
|
if (status != OK)
|
|
{
|
|
printf("timer_test: timer_create failed, errno=%d\n", errno);
|
|
goto errorout;
|
|
}
|
|
|
|
/* Start the POSIX timer */
|
|
|
|
printf("timer_test: Starting timer\n" );
|
|
|
|
timer.it_value.tv_sec = 2;
|
|
timer.it_value.tv_nsec = 0;
|
|
timer.it_interval.tv_sec = 2;
|
|
timer.it_interval.tv_nsec = 0;
|
|
|
|
status = timer_settime(timerid, 0, &timer, NULL);
|
|
if (status != OK)
|
|
{
|
|
printf("timer_test: timer_settime failed, errno=%d\n", errno);
|
|
goto errorout;
|
|
}
|
|
|
|
/* Take the semaphore */
|
|
|
|
for (i = 0; i < 5; i++)
|
|
{
|
|
printf("timer_test: Waiting on semaphore\n" );
|
|
FFLUSH();
|
|
status = sem_wait(&sem);
|
|
if (status != 0)
|
|
{
|
|
int error = errno;
|
|
if (error == EINTR)
|
|
{
|
|
printf("timer_test: sem_wait() successfully interrupted by signal\n" );
|
|
}
|
|
else
|
|
{
|
|
printf("timer_test: ERROR sem_wait failed, errno=%d\n" , error);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
printf("timer_test: ERROR awakened with no error!\n" );
|
|
}
|
|
printf("timer_test: g_nsigreceived=%d\n", g_nsigreceived);
|
|
}
|
|
|
|
errorout:
|
|
sem_destroy(&sem);
|
|
|
|
/* Then delete the timer */
|
|
|
|
printf("timer_test: Deleting timer\n" );
|
|
status = timer_delete(timerid);
|
|
if (status != OK)
|
|
{
|
|
printf("timer_test: timer_create failed, errno=%d\n", errno);
|
|
}
|
|
|
|
/* Detach the signal handler */
|
|
|
|
act.sa_sigaction = SIG_DFL;
|
|
status = sigaction(MY_TIMER_SIGNAL, &act, &oact);
|
|
|
|
printf("timer_test: done\n" );
|
|
FFLUSH();
|
|
}
|