psxtmtests/psxtmcond06/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 <tmacros.h>
0034 #include <timesys.h>
0035 #include "test_support.h"
0036 #include <pthread.h>
0037 #include <sched.h>
0038 #include <rtems/btimer.h>
0039
0040 #define N 5
0041
0042 const char rtems_test_name[] = "PSXTMCOND 06";
0043
0044 /* forward declarations to avoid warnings */
0045 void *POSIX_Init(void *argument);
0046 void *Blocker(void *argument);
0047
0048 pthread_mutex_t MutexID;
0049 pthread_cond_t CondID;
0050
0051 void *Blocker(
0052   void *argument
0053 )
0054 {
0055   int status;
0056
0057   status = pthread_mutex_lock(&MutexID);
0058   rtems_test_assert( status == 0 );
0059
0060   /* Unlock mutex, block, wait for CondID to be signaled */
0061   pthread_cond_wait(&CondID,&MutexID);
0062
0063  /* should never return */
0064   rtems_test_assert( FALSE );
0065
0066   return NULL;
0067 }
0068
0069 void *POSIX_Init(
0070   void *argument
0071 )
0072 {
0073   uint32_t            end_time;
0074   int                 status;
0075   int                 i;
0076   pthread_t           threadId;
0077   pthread_attr_t      attr;
0078   struct sched_param  param;
0079   int                 policy;
0080
0081   TEST_BEGIN();
0082
0083   /* Setup variables */
0084   status = pthread_create( &threadId, NULL, Blocker, NULL );
0085   rtems_test_assert( status == 0 );
0086   status = pthread_mutex_init(&MutexID, NULL);
0087   rtems_test_assert( status == 0 );
0088   status = pthread_cond_init(&CondID, NULL);
0089   rtems_test_assert( status == 0 );
0090
0091   /* Setup so threads are created with a high enough priority to preempt
0092    * as they get created.
0093    */
0094   status = pthread_attr_init( &attr );
0095   rtems_test_assert( status == 0 );
0096   status = pthread_attr_setinheritsched( &attr, PTHREAD_EXPLICIT_SCHED );
0097   rtems_test_assert( status == 0 );
0098   status = pthread_attr_setschedpolicy( &attr, SCHED_FIFO );
0099   rtems_test_assert( status == 0 );
0100   param.sched_priority = sched_get_priority_max(SCHED_FIFO) / 2;
0101   status = pthread_attr_setschedparam( &attr, &param );
0102   rtems_test_assert( status == 0 );
0103
0104   for ( i=0 ; i < N ; i++) {
0105     /* Threads will preempt as they are created, start up, and block */
0106     status = pthread_create(&threadId, &attr, Blocker, NULL);
0107     rtems_test_assert( status == 0 );
0108   }
0109
0110   /* Now that all the threads have been created, adjust our priority
0111    * so we don't get preempted on broadcast.
0112    */
0113   status = pthread_getschedparam(pthread_self(), &policy, &param);
0114   rtems_test_assert( status == 0 );
0115   param.sched_priority = sched_get_priority_max(policy) - 1;
0116   status = pthread_setschedparam(pthread_self(), policy, &param);
0117   rtems_test_assert( status == 0 );
0118
0119   benchmark_timer_initialize();
0120   status = pthread_cond_broadcast(&CondID);
0121   end_time = benchmark_timer_read();
0122   rtems_test_assert( status == 0 );
0123
0124   put_time(
0125     "pthread_cond_broadcast: threads waiting no preempt",
0126     end_time,
0127     1,
0128     0,
0129     0
0130   );
0131
0132   TEST_END();
0133   rtems_test_exit( 0 );
0134
0135   return NULL;
0136 }
0137
0138 /* configuration information */
0139
0140 #define CONFIGURE_APPLICATION_NEEDS_SIMPLE_CONSOLE_DRIVER
0141 #define CONFIGURE_APPLICATION_NEEDS_TIMER_DRIVER
0142
0143 #define CONFIGURE_MAXIMUM_POSIX_THREADS  2 + N
0144 #define CONFIGURE_POSIX_INIT_THREAD_TABLE
0145
0146 #define CONFIGURE_INIT
0147
0148 #include <rtems/confdefs.h>
0149   /* end of file */