psxtmtests/psxtmsem04/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 <errno.h>
0034 #include <fcntl.h>
0035 #include <semaphore.h>
0036 #include <tmacros.h>
0037 #include <timesys.h>
0038 #include "test_support.h"
0039 #include <pthread.h>
0040 #include <sched.h>
0041 #include <rtems/btimer.h>
0042
0043 const char rtems_test_name[] = "PSXTMSEM 04";
0044
0045 /* forward declarations to avoid warnings */
0046 void *POSIX_Init(void *argument);
0047 void *Blocker(void *argument);
0048
0049 #define MAX_SEMS  2
0050
0051 sem_t           sem1;
0052 sem_t           *n_sem1;
0053
0054 void *Blocker( void *argument)
0055 {
0056   (void) sem_wait(&sem1);
0057   /* should never return */
0058   rtems_test_assert( FALSE );
0059
0060   return NULL;
0061 }
0062
0063 void *POSIX_Init(void *argument)
0064 {
0065   int        status;
0066   pthread_t  threadId;
0067   benchmark_timer_t end_time;
0068
0069   TEST_BEGIN();
0070
0071   status = pthread_create( &threadId, NULL, Blocker, NULL );
0072   rtems_test_assert( status == 0 );
0073
0074   /*
0075    * Deliberately create the semaphore after the threads.  This way if the
0076    * threads do run before we intend, they will get an error.
0077    */
0078   status = sem_init( &sem1, 0, 1 );
0079   rtems_test_assert( status == 0 );
0080
0081   /*
0082    * Ensure the semaphore is unavailable so the other threads block.
0083    * Lock semaphore resource to ensure thread blocks.
0084    */
0085   status = sem_wait(&sem1);
0086   rtems_test_assert( status == 0 );
0087
0088   /*
0089    * Let the other thread start so the thread startup overhead,
0090    * is accounted for.  When we return, we can start the benchmark.
0091    */
0092   sched_yield();
0093     /* let other thread run */
0094
0095   benchmark_timer_initialize();
0096     status = sem_post( &sem1 ); /* semaphore unblocking operation */
0097   end_time = benchmark_timer_read();
0098   rtems_test_assert( status == 0 );
0099
0100   put_time(
0101     "sem_post: thread waiting no preempt",
0102     end_time,
0103     1,
0104     0,
0105     0
0106   );
0107
0108   TEST_END();
0109   rtems_test_exit( 0 );
0110
0111   return NULL;
0112 }
0113
0114 /* configuration information */
0115
0116 #define CONFIGURE_APPLICATION_NEEDS_SIMPLE_CONSOLE_DRIVER
0117 #define CONFIGURE_APPLICATION_NEEDS_TIMER_DRIVER
0118
0119 #define CONFIGURE_MAXIMUM_POSIX_THREADS     2
0120 #define CONFIGURE_POSIX_INIT_THREAD_TABLE
0121
0122 #define CONFIGURE_INIT
0123
0124 #include <rtems/confdefs.h>
0125   /* end of file */