psxtests/psx05/task.c

0001 /* SPDX-License-Identifier: BSD-2-Clause */
0002
0003 /*  Task_1
0004  *
0005  *  This routine serves as a test task.  It verifies the basic task
0006  *  switching capabilities of the executive.
0007  *
0008  *  Input parameters:
0009  *    argument - task argument
0010  *
0011  *  Output parameters:  NONE
0012  *
0013  *  COPYRIGHT (c) 1989-2009.
0014  *  On-Line Applications Research Corporation (OAR).
0015  *
0016  * Redistribution and use in source and binary forms, with or without
0017  * modification, are permitted provided that the following conditions
0018  * are met:
0019  * 1. Redistributions of source code must retain the above copyright
0020  *    notice, this list of conditions and the following disclaimer.
0021  * 2. Redistributions in binary form must reproduce the above copyright
0022  *    notice, this list of conditions and the following disclaimer in the
0023  *    documentation and/or other materials provided with the distribution.
0024  *
0025  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
0026  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
0027  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
0028  * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
0029  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
0030  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
0031  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
0032  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
0033  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
0034  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
0035  * POSSIBILITY OF SUCH DAMAGE.
0036  */
0037
0038 #ifdef HAVE_CONFIG_H
0039 #include "config.h"
0040 #endif
0041
0042 #include "system.h"
0043 #include <errno.h>
0044
0045 void *Task_1(
0046   void *argument
0047 )
0048 {
0049   int status;
0050
0051   printf( "Task: pthread_mutex_trylock already locked\n" );
0052   status = pthread_mutex_trylock( &Mutex_id );
0053   if ( status != EBUSY )
0054     printf( "status = %d\n", status );
0055   rtems_test_assert( status == EBUSY );
0056
0057   printf( "Task: pthread_mutex_lock unavailable\n" );
0058   status = pthread_mutex_lock( &Mutex_id );
0059   if ( status )
0060     printf( "status = %d\n", status );
0061   rtems_test_assert( !status );
0062
0063      /* switch to init */
0064
0065   printf( "Task: mutex acquired\n" );
0066
0067   printf( "Task: sleep for 2 seconds\n" );
0068   sleep( 2 );
0069
0070      /* switch to init */
0071
0072   printf( "Task: exit\n" );
0073   pthread_exit( NULL );
0074
0075      /* switch to Init */
0076
0077   return NULL; /* just so the compiler thinks we returned something */
0078 }