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Diffstat (limited to 'apps/examples/ostest/barrier.c')
| -rw-r--r-- | apps/examples/ostest/barrier.c | 208 |
1 files changed, 0 insertions, 208 deletions
diff --git a/apps/examples/ostest/barrier.c b/apps/examples/ostest/barrier.c deleted file mode 100644 index e66496f7b..000000000 --- a/apps/examples/ostest/barrier.c +++ /dev/null @@ -1,208 +0,0 @@ -/**************************************************************************** - * examples/ostest/barrier.c - * - * Copyright (C) 2007-2009, 2011 Gregory Nutt. All rights reserved. - * Author: Gregory Nutt <gnutt@nuttx.org> - * - * 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 <pthread.h> - -#include "ostest.h" - -/**************************************************************************** - * Definitions - ****************************************************************************/ - -#define HALF_SECOND 500000L - -/**************************************************************************** - * Private Data - ****************************************************************************/ - -static pthread_barrier_t barrier; - -/**************************************************************************** - * Private Functions - ****************************************************************************/ - -/**************************************************************************** - * Name: barrier_func - ****************************************************************************/ - -static void *barrier_func(void *parameter) -{ - int id = (int)parameter; - int status; - - printf("barrier_func: Thread %d started\n", id); -#ifndef CONFIG_DISABLE_SIGNALS - usleep(HALF_SECOND); -#endif - - /* Wait at the barrier until all threads are synchronized. */ - - printf("barrier_func: Thread %d calling pthread_barrier_wait()\n", - id); - FFLUSH(); - status = pthread_barrier_wait(&barrier); - if (status == 0) - { - printf("barrier_func: Thread %d, back with " - "status=0 (I am not special)\n", - id, status); - } - else if (status == PTHREAD_BARRIER_SERIAL_THREAD) - { - printf("barrier_func: Thread %d, back with " - "status=PTHREAD_BARRIER_SERIAL_THREAD (I AM SPECIAL)\n", - id, status); - } - else - { - printf("barrier_func: ERROR thread %d could not get semaphore value\n", - id); - } - FFLUSH(); - -#ifndef CONFIG_DISABLE_SIGNALS - usleep(HALF_SECOND); -#endif - printf("barrier_func: Thread %d done\n", id); - FFLUSH(); - return NULL; -} - -/**************************************************************************** - * Public Functions - ****************************************************************************/ - -/**************************************************************************** - * Name: barrier_test - ****************************************************************************/ - -void barrier_test(void) -{ - pthread_t barrier_thread[CONFIG_EXAMPLES_OSTEST_NBARRIER_THREADS]; - pthread_addr_t result; - pthread_attr_t attr; - pthread_barrierattr_t barrierattr; - int status; - int i; - - printf("barrier_test: Initializing barrier\n"); - - status = pthread_barrierattr_init(&barrierattr); - if (status != OK) - { - printf("barrier_test: pthread_barrierattr_init failed, status=%d\n", - status); - } - - status = pthread_barrier_init(&barrier, &barrierattr, - CONFIG_EXAMPLES_OSTEST_NBARRIER_THREADS); - if (status != OK) - { - printf("barrier_test: pthread_barrierattr_init failed, status=%d\n", - status); - } - - /* Create the barrier */ - - status = pthread_barrierattr_init(&barrierattr); - - /* Start CONFIG_EXAMPLES_OSTEST_NBARRIER_THREADS thread instances */ - - status = pthread_attr_init(&attr); - if (status != OK) - { - printf("barrier_test: pthread_attr_init failed, status=%d\n", - status); - } - - for (i = 0; i < CONFIG_EXAMPLES_OSTEST_NBARRIER_THREADS; i++) - { - status = pthread_create(&barrier_thread[i], &attr, barrier_func, - (pthread_addr_t)i); - if (status != 0) - { - printf("barrier_test: Error in thread %d create, status=%d\n", - i, status); - printf("barrier_test: Test aborted with waiting threads\n"); - goto abort_test; - } - else - { - printf("barrier_test: Thread %d created\n", i); - } - } - FFLUSH(); - - /* Wait for all thread instances to complete */ - - for (i = 0; i < CONFIG_EXAMPLES_OSTEST_NBARRIER_THREADS; i++) - { - status = pthread_join(barrier_thread[i], &result); - if (status != 0) - { - printf("barrier_test: Error in thread %d join, status=%d\n", - i, status); - } - else - { - printf("barrier_test: Thread %d completed with result=%p\n", - i, result); - } - } - - /* Destroy the barrier */ - -abort_test: - status = pthread_barrier_destroy(&barrier); - if (status != OK) - { - printf("barrier_test: pthread_barrier_destroy failed, status=%d\n", - status); - } - - status = pthread_barrierattr_destroy(&barrierattr); - if (status != OK) - { - printf("barrier_test: pthread_barrierattr_destroy failed, status=%d\n", - status); - } - FFLUSH(); -} |