Add a trivial test of sem_timedwait() to the OS test
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@ -58,7 +58,7 @@ CSRCS += waitpid.c
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endif
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ifneq ($(CONFIG_DISABLE_PTHREAD),y)
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CSRCS += cancel.c cond.c mutex.c sem.c barrier.c
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CSRCS += cancel.c cond.c mutex.c sem.c semtimed.c barrier.c
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ifneq ($(CONFIG_RR_INTERVAL),0)
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CSRCS += roundrobin.c
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endif # CONFIG_RR_INTERVAL
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@ -133,6 +133,10 @@ void recursive_mutex_test(void);
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void sem_test(void);
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/* semtimed.c ***************************************************************/
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void semtimed_test(void);
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/* cond.c *******************************************************************/
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void cond_test(void);
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@ -377,6 +377,11 @@ static int user_main(int argc, char *argv[])
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printf("\nuser_main: semaphore test\n");
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sem_test();
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check_test_memory_usage();
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printf("\nuser_main: timed semaphore test\n");
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semtimed_test();
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check_test_memory_usage();
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#endif
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#ifndef CONFIG_DISABLE_PTHREAD
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229
examples/ostest/semtimed.c
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229
examples/ostest/semtimed.c
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@ -0,0 +1,229 @@
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/***********************************************************************
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* apps/examples/ostest/semtimed.c
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*
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* Copyright (C) 2014 Gregory Nutt. All rights reserved.
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* Author: Gregory Nutt <gnutt@nuttx.org>
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* 3. Neither the name NuttX nor the names of its contributors may be
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* used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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***********************************************************************/
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/***********************************************************************
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* Included Files
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***********************************************************************/
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#include <stdio.h>
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#include <pthread.h>
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#include <semaphore.h>
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#include <time.h>
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#include <sched.h>
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#include <errno.h>
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#include "ostest.h"
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/***********************************************************************
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* Preprocessor Definitions
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***********************************************************************/
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#ifndef NULL
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# define NULL (void*)0
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#endif
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/***********************************************************************
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* Private Data
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***********************************************************************/
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static sem_t sem;
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/***********************************************************************
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* Private Functions
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***********************************************************************/
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static void *poster_func(void *parameter)
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{
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/* Wait for one second, then post the semaphore */
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printf("poster_func: Waiting for 1 second\n");
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sleep(1);
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printf("poster_func: Posting\n");
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sem_post(&sem);
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return NULL;
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}
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/***********************************************************************
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* Public Functions
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***********************************************************************/
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void semtimed_test(void)
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{
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pthread_t poster_thread = (pthread_t)0;
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#ifdef SDCC
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pthread_addr_t result;
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#endif
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struct sched_param sparam;
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struct timespec abstime;
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struct timespec before;
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struct timespec after;
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int prio_min;
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int prio_max;
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int prio_mid;
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pthread_attr_t attr;
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int status;
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printf("semtimed_test: Initializing semaphore to 0\n");
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sem_init(&sem, 0, 0);
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/* First, make sure that the timeout expires if the semaphore is never posted */
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(void)clock_gettime(CLOCK_REALTIME, &before);
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abstime.tv_sec = before.tv_sec + 2;
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abstime.tv_nsec = before.tv_nsec;
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printf("semtimed_test: Waiting for two second timeout\n");
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status = sem_timedwait(&sem, &abstime);
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(void)clock_gettime(CLOCK_REALTIME, &after);
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if (status == OK)
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{
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printf("semtimed_test: ERROR: sem_timedwait succeeded\n");
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}
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else
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{
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int errcode = errno;
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if (errcode == ETIMEDOUT)
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{
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printf("samwait_test: PASS\n");
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}
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else
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{
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printf("semtimed_test: ERROR: sem_timedwait failed with: %d\n", errcode);
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}
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}
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(void)clock_gettime(CLOCK_REALTIME, &after);
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printf("BEFORE: (%lu sec, %lu nsec)\n",
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(unsigned long)before.tv_sec, (unsigned long)before.tv_nsec);
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printf("AFTER: (%lu sec, %lu nsec)\n",
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(unsigned long)after.tv_sec, (unsigned long)after.tv_nsec);
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/* Now make sure that the time wait returns successfully if the semaphore is posted */
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/* Start a poster thread. It will wait 1 seconds and post the semaphore */
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printf("semtimed_test: Starting poster thread\n");
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status = pthread_attr_init(&attr);
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if (status != OK)
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{
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printf("semtimed_test: ERROR: pthread_attr_init failed, status=%d\n", status);
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}
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prio_min = sched_get_priority_min(SCHED_FIFO);
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prio_max = sched_get_priority_max(SCHED_FIFO);
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prio_mid = (prio_min + prio_max) / 2;
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sparam.sched_priority = (prio_mid + prio_max) / 2;
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status = pthread_attr_setschedparam(&attr,&sparam);
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if (status != OK)
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{
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printf("semtimed_test: ERROR: pthread_attr_setschedparam failed, status=%d\n", status);
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}
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else
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{
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printf("semtimed_test: Set thread 1 priority to %d\n", sparam.sched_priority);
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}
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printf("semtimed_test: Starting poster thread 3\n");
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status = pthread_attr_init(&attr);
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if (status != 0)
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{
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printf("semtimed_test: ERROR: pthread_attr_init failed, status=%d\n", status);
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}
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sparam.sched_priority = (prio_min + prio_mid) / 2;
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status = pthread_attr_setschedparam(&attr,&sparam);
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if (status != OK)
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{
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printf("semtimed_test: pthread_attr_setschedparam failed, status=%d\n", status);
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}
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else
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{
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printf("semtimed_test: Set thread 3 priority to %d\n", sparam.sched_priority);
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}
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status = pthread_create(&poster_thread, &attr, poster_func, NULL);
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if (status != 0)
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{
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printf("semtimed_test: ERROR: Poster thread creation failed: %d\n", status);
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sem_destroy(&sem);
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return;
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}
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/* Up to two seconds for the semaphore to be posted */
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(void)clock_gettime(CLOCK_REALTIME, &before);
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abstime.tv_sec = before.tv_sec + 2;
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abstime.tv_nsec = before.tv_nsec;
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printf("semtimed_test: Waiting for two second timeout\n");
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status = sem_timedwait(&sem, &abstime);
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(void)clock_gettime(CLOCK_REALTIME, &after);
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if (status < 0)
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{
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int errcode = errno;
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printf("semtimed_test: ERROR: sem_timedwait failed with: %d\n", errcode);
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}
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else
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{
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printf("semtimed_test: PASS: sem_timedwait succeeded\n");
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}
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(void)clock_gettime(CLOCK_REALTIME, &after);
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printf("BEFORE: (%lu sec, %lu nsec)\n",
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(unsigned long)before.tv_sec, (unsigned long)before.tv_nsec);
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printf("AFTER: (%lu sec, %lu nsec)\n",
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(unsigned long)after.tv_sec, (unsigned long)after.tv_nsec);
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/* Clean up detritus left by the pthread */
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#ifdef SDCC
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if (poster_thread != (pthread_t)0)
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{
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pthread_join(poster_thread, &result);
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}
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#else
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if (poster_thread != (pthread_t)0)
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{
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pthread_join(poster_thread, NULL);
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}
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#endif
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sem_destroy(&sem);
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}
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