forked from Imagelibrary/rtems
2e7e636f75
* psx01/init.c, psx01/task.c, psx02/init.c, psx02/task.c, psx03/init.c, psx04/init.c, psx04/task1.c, psx04/task3.c, psx05/init.c, psx06/init.c, psx07/init.c, psx08/init.c, psx09/init.c, psx11/task.c, psx12/init.c, psx13/main.c, psx13/test.c, psxbarrier01/test.c, psxcancel/init.c, psxcleanup/psxcleanup.c, psxenosys/init.c, psxmsgq02/init.c, psxtime/main.c, psxtime/test.c, psxtimer01/psxtimer.c, psxtimer02/psxtimer.c: Fix warnings.
98 lines
2.0 KiB
C
98 lines
2.0 KiB
C
/* Task_1
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*
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* This routine serves as a test task. It verifies the basic task
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* switching capabilities of the executive.
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*
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* Input parameters:
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* argument - task argument
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*
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* Output parameters: NONE
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*
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* COPYRIGHT (c) 1989-2009.
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* On-Line Applications Research Corporation (OAR).
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*
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* The license and distribution terms for this file may be
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* found in the file LICENSE in this distribution or at
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* http://www.rtems.com/license/LICENSE.
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*
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* $Id$
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*/
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#include "system.h"
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#include <time.h>
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#include <sched.h>
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void diff_timespec(
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struct timespec *start,
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struct timespec *stop,
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struct timespec *result
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);
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void diff_timespec(
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struct timespec *start,
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struct timespec *stop,
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struct timespec *result
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)
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{
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int nsecs_per_sec = 1000000000;
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result->tv_sec = stop->tv_sec - start->tv_sec;
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if ( stop->tv_nsec < start->tv_nsec ) {
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result->tv_nsec = nsecs_per_sec - start->tv_nsec + stop->tv_nsec;
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result->tv_sec--;
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} else
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result->tv_nsec = stop->tv_nsec - start->tv_nsec;
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}
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void *Task_1(
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void *argument
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)
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{
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int status;
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struct timespec start;
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struct timespec current;
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struct timespec difference;
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struct timespec delay;
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status = clock_gettime( CLOCK_REALTIME, &start );
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assert( !status );
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status = sched_rr_get_interval( getpid(), &delay );
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assert( !status );
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/* double the rr interval for confidence */
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delay.tv_sec *= 2;
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delay.tv_nsec *= 2;
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if ( delay.tv_nsec >= 1000000000 ) { /* handle overflow/carry */
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delay.tv_nsec -= 1000000000;
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delay.tv_sec++;
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}
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puts( "Task_1: killing time" );
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for ( ; ; ) {
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status = clock_gettime( CLOCK_REALTIME, ¤t );
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assert( !status );
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diff_timespec( &start, ¤t, &difference );
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if ( difference.tv_sec < delay.tv_sec )
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continue;
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if ( difference.tv_sec > delay.tv_sec )
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break;
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if ( difference.tv_nsec > delay.tv_nsec )
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break;
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}
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puts( "Task_1: exitting" );
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pthread_exit( NULL );
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return NULL; /* just so the compiler thinks we returned something */
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}
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