psxtmtests/psxtmrwlock05/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 #include <errno.h>
0033 #include <timesys.h>
0034 #include <tmacros.h>
0035 #include <sched.h>
0036 #include <pthread.h>
0037 #include <rtems/btimer.h>
0038 #include "test_support.h"
0039
0040 const char rtems_test_name[] = "PSXTMRWLOCK 05";
0041
0042 /* forward declarations to avoid warnings */
0043 void *POSIX_Init(void *argument);
0044 void *Middle(void *argument);
0045 void *Low(void *argument);
0046
0047 pthread_rwlock_t     rwlock;
0048 struct timespec      abstime;
0049
0050 void *Low(
0051   void *argument
0052 )
0053 {
0054   benchmark_timer_t end_time;
0055
0056   /*
0057    * Now we have finished the thread startup overhead,
0058    * so let other threads run.  When we return, we can
0059    * finish the benchmark.
0060    */
0061   sched_yield();
0062     /* let other threads run */
0063
0064   end_time = benchmark_timer_read();
0065
0066   put_time(
0067     "pthread_rwlock_timedwrlock: not available blocks",
0068     end_time,
0069     OPERATION_COUNT,
0070     0,
0071     0
0072   );
0073
0074   TEST_END();
0075
0076   rtems_test_exit( 0 );
0077   return NULL;
0078 }
0079
0080 void *Middle(
0081   void *argument
0082 )
0083 {
0084   int status;
0085
0086   /*
0087    * Now we have finished the thread startup overhead,
0088    * so let other threads run.  When we return, we can
0089    * finish the benchmark.
0090    */
0091   sched_yield();
0092     /* let other threads run */
0093
0094   /* This timed write lock operation will be blocked
0095    * because the other write operation has the lock
0096    */
0097     status = pthread_rwlock_timedwrlock(&rwlock, &abstime);
0098   rtems_test_assert( status == 0 );
0099   return NULL;
0100 }
0101
0102 void *POSIX_Init(
0103   void *argument
0104 )
0105 {
0106   int        i;
0107   int        status;
0108   pthread_t  threadId;
0109   pthread_rwlockattr_t attr;
0110
0111   TEST_BEGIN();
0112
0113   for ( i=0 ; i < OPERATION_COUNT - 1 ; i++ ) {
0114     status = pthread_create( &threadId, NULL, Middle, NULL );
0115     rtems_test_assert( !status );
0116   }
0117
0118   status = pthread_create( &threadId, NULL, Low, NULL );
0119   rtems_test_assert( !status );
0120
0121   /*
0122    *  Timeout for 5 seconds from now.
0123    */
0124   status = clock_gettime( CLOCK_REALTIME, &abstime );
0125   rtems_test_assert( !status );
0126   abstime.tv_sec += 5;
0127
0128   /*
0129    * Deliberately create the rwlock after the threads.  This way if the
0130    * threads do run before we intend, they will get an error.
0131    */
0132   status = pthread_rwlockattr_init( &attr );
0133   rtems_test_assert( status == 0 );
0134     status = pthread_rwlock_init( &rwlock, &attr );
0135   rtems_test_assert( status == 0 );
0136   /*
0137    * Let the other threads start so the thread startup overhead,
0138    * is accounted for.  When we return, we can start the benchmark.
0139    */
0140   sched_yield();
0141     /* let other threads run */
0142
0143
0144   /* start the timer and switch through all the other tasks */
0145   benchmark_timer_initialize();
0146
0147   /* write lock operation, this could be any write lock
0148    * I decided to use timedwrlock just to continue in the timed line  */
0149     status = pthread_rwlock_timedwrlock(&rwlock,0);
0150   rtems_test_assert( status == 0 );
0151   return NULL;
0152 }
0153
0154 /* configuration information */
0155
0156 #define CONFIGURE_APPLICATION_NEEDS_SIMPLE_CONSOLE_DRIVER
0157 #define CONFIGURE_APPLICATION_NEEDS_TIMER_DRIVER
0158
0159 #define CONFIGURE_MAXIMUM_POSIX_THREADS     OPERATION_COUNT + 2
0160 #define CONFIGURE_POSIX_INIT_THREAD_TABLE
0161
0162 #define CONFIGURE_INIT
0163
0164 #include <rtems/confdefs.h>
0165   /* end of file */