psxtests/psxgetrusage01/init.c

0001 /* SPDX-License-Identifier: BSD-2-Clause */
0002
0003 /*
0004  *  COPYRIGHT (c) 1989-2010.
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 #define _GNU_SOURCE 1
0034 #include <sys/resource.h>
0035 #undef _GNU_SOURCE
0036
0037 #include <sys/time.h>
0038 #include <errno.h>
0039
0040 #include <tmacros.h>
0041 #include "test_support.h"
0042
0043 const char rtems_test_name[] = "PSXGETRUSAGE 1";
0044
0045 /* configuration information */
0046
0047 #define CONFIGURE_APPLICATION_NEEDS_SIMPLE_CONSOLE_DRIVER
0048 #define CONFIGURE_APPLICATION_NEEDS_CLOCK_DRIVER
0049
0050 #define CONFIGURE_MAXIMUM_TASKS             1
0051 #define CONFIGURE_INITIAL_EXTENSIONS RTEMS_TEST_INITIAL_EXTENSION
0052
0053 #define CONFIGURE_RTEMS_INIT_TASKS_TABLE
0054
0055 #define CONFIGURE_INIT
0056
0057 #include <rtems/confdefs.h>
0058
0059 rtems_task Init(
0060   rtems_task_argument argument
0061 )
0062 {
0063   int           sc;
0064   struct rusage usage;
0065
0066   TEST_BEGIN();
0067
0068   puts( "getrusage( RUSAGE_SELF, NULL ) -- EFAULT" );
0069   sc = getrusage( RUSAGE_SELF, NULL );
0070   rtems_test_assert( sc == -1 );
0071   rtems_test_assert( errno == EFAULT );
0072
0073   puts( "getrusage( RUSAGE_CHILDREN, &usage ) -- ENOSYS" );
0074   sc = getrusage( RUSAGE_CHILDREN, &usage );
0075   rtems_test_assert( sc == -1 );
0076   rtems_test_assert( errno == ENOSYS );
0077
0078   puts( "getrusage( 77, &usage ) -- EINVAL" );
0079   sc = getrusage( 77, &usage );
0080   rtems_test_assert( sc == -1 );
0081   rtems_test_assert( errno == EINVAL );
0082
0083   puts( "Consume CPU long enough to have non-zero usage" );
0084   rtems_test_spin_for_ticks( 5 );
0085
0086   puts( "getrusage( RUSAGE_SELF, &usage ) -- 0" );
0087   sc = getrusage( RUSAGE_SELF, &usage );
0088   rtems_test_assert( sc == 0 );
0089
0090   /* CPU usage is non-zero */
0091   rtems_test_assert( usage.ru_utime.tv_sec == 0 );
0092   rtems_test_assert( usage.ru_utime.tv_usec != 0 );
0093
0094   /* System is the IDLE time and user is the total of task time */
0095   rtems_test_assert( usage.ru_utime.tv_sec != usage.ru_stime.tv_sec );
0096   rtems_test_assert( usage.ru_utime.tv_usec != usage.ru_stime.tv_usec );
0097
0098   puts( "getrusage( RUSAGE_THREAD, &usage ) -- 0" );
0099   sc = getrusage( RUSAGE_THREAD, &usage );
0100   rtems_test_assert( sc == 0 );
0101
0102   /* System is the 0 and user is the task time */
0103   rtems_test_assert( usage.ru_utime.tv_sec != 0 ||
0104              usage.ru_utime.tv_usec != 0 );
0105   rtems_test_assert( usage.ru_stime.tv_sec == 0 &&
0106              usage.ru_stime.tv_usec == 0 );
0107
0108   TEST_END();
0109
0110   rtems_test_exit(0);
0111 }