sptests/sp07/task1.c

0001 /* SPDX-License-Identifier: BSD-2-Clause */
0002
0003 /*
0004  *  COPYRIGHT (c) 1989-2011.
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 "system.h"
0034
0035 rtems_task Task_1(
0036   rtems_task_argument argument
0037 )
0038 {
0039   rtems_status_code   status;
0040   rtems_task_priority the_priority;
0041   rtems_task_priority previous_priority;
0042
0043   status = rtems_task_set_priority(
0044     RTEMS_SELF,
0045     RTEMS_CURRENT_PRIORITY,
0046     &the_priority
0047   );
0048   directive_failed( status, "rtems_task_set_priority" );
0049   printf(
0050     "TA1 - rtems_task_set_priority - get initial "
0051        "priority of self: %02" PRIdrtems_task_priority "\n",
0052     the_priority
0053   );
0054
0055   while( FOREVER ) {
0056     if ( --the_priority == 0 ) {
0057       puts( "TA1 - rtems_task_suspend - suspend TA2" );
0058       status = rtems_task_suspend( Task_id[ 2 ] );
0059       directive_failed( status, "rtems_task_suspend" );
0060
0061       puts( "TA1 - rtems_task_set_priority - set priority of TA2 ( blocked )" );
0062       status = rtems_task_set_priority( Task_id[ 2 ], 5, &previous_priority );
0063       directive_failed( status, "rtems_task_set_priority" );
0064
0065       status = rtems_task_delete( Task_id[ 2 ] );
0066       directive_failed( status, "rtems_task_delete of TA2" );
0067
0068       rtems_task_exit();
0069     }
0070
0071     printf(
0072       "TA1 - rtems_task_set_priority - set TA2's priority: "
0073           "%02" PRIdrtems_task_priority "\n",
0074       the_priority
0075     );
0076     status = rtems_task_set_priority(
0077                Task_id[ 2 ],
0078                the_priority,
0079                &previous_priority
0080     );
0081     directive_failed( status, "rtems_task_set_priority" );
0082   }
0083 }