psxtmtests/psxtmrwlock06/init.c

0001 /* SPDX-License-Identifier: BSD-2-Clause */
0002
0003 /*
0004  *  COPYRIGHT (c) 1989-2013.
0005  *  On-Line Applications Research Corporation (OAR).
0006  *
0007  * Redistribution and use in source and binary forms, with or without
0008  * modification, are permitted provided that the following conditions
0009  * are met:
0010  * 1. Redistributions of source code must retain the above copyright
0011  *    notice, this list of conditions and the following disclaimer.
0012  * 2. Redistributions in binary form must reproduce the above copyright
0013  *    notice, this list of conditions and the following disclaimer in the
0014  *    documentation and/or other materials provided with the distribution.
0015  *
0016  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
0017  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
0018  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
0019  * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
0020  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
0021  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
0022  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
0023  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
0024  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
0025  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
0026  * POSSIBILITY OF SUCH DAMAGE.
0027  */
0028
0029 #ifdef HAVE_CONFIG_H
0030 #include "config.h"
0031 #endif
0032
0033 #include <pthread.h>
0034 #include <sched.h>
0035 #include <tmacros.h>
0036 #include <timesys.h>
0037 #include "test_support.h"
0038 #include <rtems/btimer.h>
0039
0040 const char rtems_test_name[] = "PSXTMRWLOCK 06";
0041
0042 /* forward declarations to avoid warnings */
0043 void *POSIX_Init(void *argument);
0044 void *Blocker(void *argument);
0045
0046 pthread_rwlock_t     rwlock;
0047
0048 void *Blocker(
0049   void *argument
0050 )
0051 {
0052   (void) pthread_rwlock_wrlock(&rwlock);
0053   /* should never return */
0054   rtems_test_assert( FALSE );
0055
0056   return NULL;
0057 }
0058
0059 void *POSIX_Init(
0060   void *argument
0061 )
0062 {
0063   int                   status;
0064   pthread_t             threadId;
0065   benchmark_timer_t end_time;
0066   pthread_rwlockattr_t  attr;
0067
0068   TEST_BEGIN();
0069
0070   status = pthread_create( &threadId, NULL, Blocker, NULL );
0071   rtems_test_assert( status == 0 );
0072   /*
0073    * Deliberately create the rwlock after the threads.  This way if the
0074    * threads do run before we intend, they will get an error.
0075    */
0076
0077   /* creating rwlock */
0078     status = pthread_rwlockattr_init( &attr );
0079   rtems_test_assert( status == 0 );
0080   status = pthread_rwlock_init( &rwlock, &attr );
0081   rtems_test_assert( status == 0 );
0082
0083   /*
0084    * Ensure the rwlock is unavailable so the other threads block.
0085    */
0086   /* lock rwlock to ensure thread blocks */
0087   status = pthread_rwlock_wrlock(&rwlock);
0088   rtems_test_assert( status == 0 );
0089
0090   /*
0091    * Let the other thread start so the thread startup overhead,
0092    * is accounted for.  When we return, we can start the benchmark.
0093    */
0094   sched_yield();
0095     /* let other thread run */
0096
0097   benchmark_timer_initialize();
0098     status = pthread_rwlock_unlock(&rwlock); /*  unlock the rwlock */
0099   end_time = benchmark_timer_read();
0100   rtems_test_assert( status == 0 );
0101
0102   put_time(
0103     "pthread_rwlock_unlock: thread waiting no preempt",
0104     end_time,
0105     1,
0106     0,
0107     0
0108   );
0109
0110   TEST_END();
0111   rtems_test_exit( 0 );
0112
0113   return NULL;
0114 }
0115
0116 /* configuration information */
0117
0118 #define CONFIGURE_APPLICATION_NEEDS_SIMPLE_CONSOLE_DRIVER
0119 #define CONFIGURE_APPLICATION_NEEDS_TIMER_DRIVER
0120
0121 #define CONFIGURE_MAXIMUM_POSIX_THREADS     2
0122 #define CONFIGURE_POSIX_INIT_THREAD_TABLE
0123
0124 #define CONFIGURE_INIT
0125
0126 #include <rtems/confdefs.h>
0127   /* end of file */