Add a simple named semaphore test to the OS test
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Gregory Nutt
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@ -59,6 +59,9 @@ endif
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ifneq ($(CONFIG_DISABLE_PTHREAD),y)
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CSRCS += cancel.c cond.c mutex.c sem.c semtimed.c barrier.c
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ifeq ($(CONFIG_FS_NAMED_SEMAPHORES),y)
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CSRCS += nsem.c
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endif
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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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230
examples/ostest/nsem.c
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230
examples/ostest/nsem.c
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@ -0,0 +1,230 @@
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/***********************************************************************
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* apps/examples/nsem.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 <sched.h>
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#include "ostest.h"
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#ifdef CONFIG_FS_NAMED_SEMAPHORES
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/***********************************************************************
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* Pre-processor Definitions
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***********************************************************************/
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#define SEM1_NAME "foo"
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#define SEM2_NAME "bar"
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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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/***********************************************************************
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* Private Functions
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***********************************************************************/
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static void *nsem_peer(void *parameter)
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{
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FAR sem_t *sem1;
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FAR sem_t *sem2;
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/* Open semaphore 1. This should have already been created by
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* nsem_test().
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*/
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printf("nsem_peer: Open semaphore 1\n");
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sem1 = sem_open(SEM1_NAME, 0);
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if (sem1 == (FAR sem_t*)ERROR)
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{
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int errcode = errno;
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printf("nsem_peer: ERROR: sem_open(1) failed: %d\n", errcode);
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return NULL;
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}
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/* Open semaphore 2. We will create that one */
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printf("nsem_peer: Create semaphore 2 with value == 0\n");
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sem2 = sem_open(SEM2_NAME, O_CREATE|O_EXCL, 0644, 0);
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if (sem1 == (FAR sem_t*)ERROR)
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{
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int errcode = errno;
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printf("nsem_peer: ERROR: sem_open(2) failed: %d\n", errcode);
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return NULL;
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}
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/* Post and discard semaphore 1 */
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printf("nsem_peer: Post, close, and unlink semaphore 1\n");
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sem_post(sem1);
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sem_close(sem1);
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sem_unlink(SEM1_NAME);
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/* Now post and close semaphore 2 */
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printf("nsem_peer: Post and close semaphore 2\n");
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sem_post(sem2);
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sem_close(sem2);
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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 nsem_test(void)
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{
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pthread_t peer = (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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FAR sem_t *sem1;
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FAR sem_t *sem2;
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struct sched_param sparam;
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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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/* Open semaphore 2. We will create that one */
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printf("nsem_test: Create semaphore 1 with value == 0\n");
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sem2 = sem_open(SEM1_NAME, O_CREATE|O_EXCL, 0644, 0);
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if (sem1 == (FAR sem_t*)ERROR)
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{
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int errcode = errno;
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printf("nsem_peer: ERROR: sem_open(1) failed: %d\n", errcode);
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return NULL;
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}
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/* Start the peer thread */
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printf("nsem_test: Starting peer peer\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("nsem_test: 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("nsem_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("nsem_test: Set peer priority to %d\n", sparam.sched_priority);
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}
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status = pthread_create(&peer, &attr, nsem_peer, NULL);
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if (status != 0)
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{
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printf("nsem_test: ERROR: Peer thread creation failed: %d\n", status);
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return;
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}
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/* Wait for the peer to post semaphore 1 */
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status = sem_wait(sem1);
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if (status < 0)
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{
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int errcode = errno;
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printf("nsem_test: ERROR: sem_wait(1) failed: %d\n", errcode);
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pthread_cancel(peer);
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return;
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}
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/* Close sem1. It should already have been unlinked by the nsem_peer */
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sem_close(sem1);
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/* Open semaphore 2. This should have already been created by
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* nsem_peer().
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*/
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printf("nsem_test: Open semaphore 2\n");
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sem1 = sem_open(SEM2_NAME, 0);
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if (sem1 == (FAR sem_t*)ERROR)
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{
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int errcode = errno;
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printf("nsem_test: ERROR: sem_open(2) failed: %d\n", errcode);
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pthread_cancel(peer);
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return NULL;
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}
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/* Wait for the peer to post semaphore 2 */
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status = sem_wait(sem1);
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if (status < 0)
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{
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int errcode = errno;
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printf("nsem_test: ERROR: sem_wait(1) failed: %d\n", errcode);
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pthread_cancel(peer);
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return;
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}
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/* Close and unlink semaphore 2 */
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sem_close(sem1);
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sem_unlink(SEM2_NAME);
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#ifdef SDCC
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if (peer != (pthread_t)0)
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{
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pthread_join(peer, &result);
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}
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#else
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if (peer != (pthread_t)0)
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{
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pthread_join(peer, NULL);
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}
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#endif
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}
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#endif /* CONFIG_FS_NAMED_SEMAPHORES */
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@ -382,6 +382,12 @@ static int user_main(int argc, char *argv[])
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semtimed_test();
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check_test_memory_usage();
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#ifdef CONFIG_FS_NAMED_SEMAPHORES
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printf("\nuser_main: Named semaphore test\n");
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nsem_test();
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check_test_memory_usage();
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#endif
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#endif
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#ifndef CONFIG_DISABLE_PTHREAD
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@ -33,18 +33,34 @@
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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 <sched.h>
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#include "ostest.h"
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/***********************************************************************
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* Pre-processor 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 *waiter_func(void *parameter)
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{
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int id = (int)parameter;
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@ -138,6 +154,10 @@ static void *poster_func(void *parameter)
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}
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/***********************************************************************
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* Public Functions
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***********************************************************************/
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void sem_test(void)
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{
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pthread_t waiter_thread1 = (pthread_t)0;
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