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/*
* COPYRIGHT (c) 1989, 1990, 1991, 1992, 1993, 1994.
* On-Line Applications Research Corporation (OAR).
* All rights assigned to U.S. Government, 1994.
*
* This material may be reproduced by or for the U.S. Government pursuant
* to the copyright license under the clause at DFARS 252.227-7013. This
* notice must appear in all copies of this file and its derivatives.
*
* $Id$
*/
#define CONFIGURE_INIT
#include "system.h"
#include <sched.h>
void *POSIX_Init(
void *argument
)
{
int status;
int priority;
pthread_t thread_id;
time_t seconds;
time_t remaining;
struct tm tm;
struct timespec tv;
struct timespec tr;
puts( "\n\n*** POSIX TEST 1 ***" );
/* set the time of day, and print our buffer in multiple ways */
build_time( &tm, TM_FRIDAY, TM_MAY, 24, 96, 11, 5, 0 );
tv.tv_sec = mktime( &tm );
assert( tv.tv_sec != -1 );
tv.tv_nsec = 0;
status = clock_settime( CLOCK_REALTIME, &tv );
assert( !status );
printf( asctime( &tm ) );
printf( ctime( &tv.tv_sec ) );
/* use sleep to delay */
remaining = sleep( 3 );
assert( !remaining );
/* print new times to make sure it has changed and we can get the realtime */
status = clock_gettime( CLOCK_REALTIME, &tv );
assert( !status );
printf( ctime( &tv.tv_sec ) );
seconds = time( NULL );
printf( ctime( &seconds ) );
/* check the time remaining */
printf( "Init: seconds remaining (%d)\n", (int)remaining );
assert( !remaining );
/* use nanosleep to delay */
tv.tv_sec = 3;
tv.tv_nsec = 500000;
status = nanosleep ( &tv, &tr );
assert( !status );
/* print the current real time again */
status = clock_gettime( CLOCK_REALTIME, &tv );
assert( !status );
printf( ctime( &tv.tv_sec ) );
/* check the time remaining */
printf( "Init: sec (%ld), nsec (%ld) remaining\n", tr.tv_sec, tr.tv_nsec );
assert( !tr.tv_sec && !tr.tv_nsec );
/* get id of this thread */
Init_id = pthread_self();
printf( "Init: ID is 0x%08x\n", Init_id );
/* exercise get minimum priority */
priority = sched_get_priority_min( SCHED_FIFO );
printf( "Init: sched_get_priority_min (SCHED_FIFO) -- %d\n", priority );
assert( priority != -1 );
puts( "Init: sched_get_priority_min -- EINVAL (invalid policy)" );
priority = sched_get_priority_min( -1 );
assert( priority == -1 );
assert( errno == EINVAL );
/* exercise get maximum priority */
priority = sched_get_priority_max( SCHED_FIFO );
printf( "Init: sched_get_priority_max (SCHED_FIFO) -- %d\n", priority );
assert( priority != -1 );
puts( "Init: sched_get_priority_min -- EINVAL (invalid policy)" );
priority = sched_get_priority_min( -1 );
assert( priority == -1 );
assert( errno == EINVAL );
/* print the round robin time quantum */
status = sched_rr_get_interval( getpid(), &tr );
printf(
"Init: Round Robin quantum is %ld seconds, %ld nanoseconds\n",
tr.tv_sec,
tr.tv_nsec
);
assert( !status );
/* create a thread */
puts( "Init: pthread_create - SUCCESSFUL" );
status = pthread_create( &thread_id, NULL, Task_1_through_3, NULL );
assert( !status );
/* too may threads error */
puts( "Init: pthread_create - EINVAL (too many threads)" );
status = pthread_create( &thread_id, NULL, Task_1_through_3, NULL );
assert( status == EINVAL );
puts( "Init: sched_yield to Task_1" );
status = sched_yield();
assert( !status );
/* switch to Task_1 */
/* exit this thread */
puts( "Init: pthread_exit" );
pthread_exit( NULL );
/* switch to Task_1 */
return NULL; /* just so the compiler thinks we returned something */
}
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