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unneback |
/*
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* COPYRIGHT (c) 1989-1999.
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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.OARcorp.com/rtems/license.html.
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*
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* $Id: init.c,v 1.2 2001-09-27 12:02:24 chris Exp $
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*/
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#define CONFIGURE_INIT
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#include "system.h"
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#include <errno.h>
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#define MUTEX_BAD_ID 0xfffffffe
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void Print_mutexattr(
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char *msg,
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pthread_mutexattr_t *attr
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)
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{
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int status;
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int protocol;
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int prioceiling;
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int pshared;
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/* protocol */
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status = pthread_mutexattr_getprotocol( attr, &protocol );
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assert( !status );
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printf( "%smutex protocol is (%d) -- ", msg, protocol );
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switch ( protocol ) {
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case PTHREAD_PRIO_NONE:
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puts( "PTHREAD_PRIO_NONE" );
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break;
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case PTHREAD_PRIO_INHERIT:
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puts( "PTHREAD_PRIO_INHERIT" );
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break;
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case PTHREAD_PRIO_PROTECT:
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puts( "PTHREAD_PRIO_PROTECT" );
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break;
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default:
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puts( "UNKNOWN" );
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assert( 0 );
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break;
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}
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/* priority ceiling */
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status = pthread_mutexattr_getprioceiling( attr, &prioceiling );
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assert( !status );
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printf( "%smutex priority ceiling is %d\n", msg, prioceiling );
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/* process shared */
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status = pthread_mutexattr_getpshared( attr, &pshared );
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assert( !status );
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printf( "%smutex process shared is (%d) -- ", msg, pshared );
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switch ( pshared ) {
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case PTHREAD_PROCESS_PRIVATE:
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puts( "PTHREAD_PROCESS_PRIVATE" );
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break;
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case PTHREAD_PROCESS_SHARED:
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puts( "PTHREAD_PROCESS_SHARED" );
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break;
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default:
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puts( "UNKNOWN" );
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assert( 0 );
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break;
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}
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}
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void *POSIX_Init(
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void *argument
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)
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{
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int status;
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pthread_mutexattr_t attr;
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pthread_mutexattr_t destroyed_attr;
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struct timespec times;
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struct sched_param param;
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int pshared;
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int policy;
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int protocol;
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int ceiling;
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int old_ceiling;
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assert( MUTEX_BAD_ID != PTHREAD_MUTEX_INITIALIZER );
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Mutex_bad_id = MUTEX_BAD_ID;
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puts( "\n\n*** POSIX TEST 5 ***" );
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/* set the time of day, and print our buffer in multiple ways */
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set_time( TM_FRIDAY, TM_MAY, 24, 96, 11, 5, 0 );
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/* get id of this thread */
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Init_id = pthread_self();
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printf( "Init's ID is 0x%08x\n", Init_id );
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/* tes pthread_mutex_attr_init */
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puts( "Init: pthread_mutexattr_init - EINVAL (NULL attr)" );
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status = pthread_mutexattr_init( NULL );
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assert( status == EINVAL );
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puts( "Init: pthread_mutexattr_init - SUCCESSFUL" );
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status = pthread_mutexattr_init( &attr );
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assert( !status );
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Print_mutexattr( "Init: ", &attr );
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/* create an "uninitialized" attribute structure */
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status = pthread_mutexattr_init( &destroyed_attr );
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assert( !status );
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puts( "Init: pthread_mutexattr_destroy - SUCCESSFUL" );
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status = pthread_mutexattr_destroy( &destroyed_attr );
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assert( !status );
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puts( "Init: pthread_mutexattr_destroy - EINVAL (NULL attr)" );
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status = pthread_mutexattr_destroy( NULL );
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assert( status == EINVAL );
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puts( "Init: pthread_mutexattr_destroy - EINVAL (not initialized)" );
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status = pthread_mutexattr_destroy( &destroyed_attr );
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assert( status == EINVAL );
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/* error cases for set and get pshared attribute */
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empty_line();
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puts( "Init: pthread_mutexattr_getpshared - EINVAL (NULL attr)" );
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status = pthread_mutexattr_getpshared( NULL, &pshared );
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assert( status == EINVAL );
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puts( "Init: pthread_mutexattr_getpshared - EINVAL (NULL pshared)" );
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status = pthread_mutexattr_getpshared( &attr, NULL );
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assert( status == EINVAL );
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puts( "Init: pthread_mutexattr_getpshared - EINVAL (not initialized)" );
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status = pthread_mutexattr_getpshared( &destroyed_attr, &pshared );
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assert( status == EINVAL );
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pshared = PTHREAD_PROCESS_PRIVATE;
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puts( "Init: pthread_mutexattr_setpshared - EINVAL (NULL attr)" );
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status = pthread_mutexattr_setpshared( NULL, pshared );
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assert( status == EINVAL );
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pshared = PTHREAD_PROCESS_PRIVATE;
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puts( "Init: pthread_mutexattr_setpshared - EINVAL (not initialized)" );
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status = pthread_mutexattr_setpshared( &destroyed_attr, pshared );
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assert( status == EINVAL );
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/* error cases for set and get protocol attribute */
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empty_line();
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puts( "Init: pthread_mutexattr_getprotocol - EINVAL (NULL attr)" );
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status = pthread_mutexattr_getprotocol( NULL, &protocol );
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assert( status == EINVAL );
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puts( "Init: pthread_mutexattr_getprotocol - EINVAL (NULL protocol)" );
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status = pthread_mutexattr_getprotocol( &attr, NULL );
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assert( status == EINVAL );
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puts( "Init: pthread_mutexattr_getprotocol - EINVAL (not initialized)" );
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status = pthread_mutexattr_getprotocol( &destroyed_attr, &protocol );
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assert( status == EINVAL );
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puts( "Init: pthread_mutexattr_setprotocol - EINVAL (NULL attr)" );
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status = pthread_mutexattr_setprotocol( NULL, PTHREAD_PRIO_NONE );
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assert( status == EINVAL );
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puts( "Init: pthread_mutexattr_setprotocol - EINVAL (invalid protocol)" );
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status = pthread_mutexattr_setprotocol( &attr, -1 );
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assert( status == EINVAL );
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puts( "Init: pthread_mutexattr_setprotocol - EINVAL (not initialized)" );
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status = pthread_mutexattr_setprotocol( &destroyed_attr, -1 );
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assert( status == EINVAL );
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/* error cases for set and get prioceiling attribute */
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empty_line();
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puts( "Init: pthread_mutexattr_getprioceiling - EINVAL (NULL attr)" );
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status = pthread_mutexattr_getprioceiling( NULL, &ceiling );
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assert( status == EINVAL );
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puts( "Init: pthread_mutexattr_getprioceiling - EINVAL (NULL prioceiling)" );
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status = pthread_mutexattr_getprioceiling( &attr, NULL );
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assert( status == EINVAL );
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puts( "Init: pthread_mutexattr_getprioceiling - EINVAL (not initialized)" );
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status = pthread_mutexattr_getprioceiling( &destroyed_attr, &ceiling );
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assert( status == EINVAL );
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puts( "Init: pthread_mutexattr_setprioceiling - EINVAL (NULL attr)" );
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status = pthread_mutexattr_setprioceiling( NULL, 128 );
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assert( status == EINVAL );
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puts( "Init: pthread_mutexattr_setprioceiling - EINVAL (invalid priority)" );
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status = pthread_mutexattr_setprioceiling( &attr, 512 );
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if ( status != EINVAL )
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printf( "status = %d\n", status );
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assert( status == EINVAL );
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puts( "Init: pthread_mutexattr_setprioceiling - EINVAL (not initialized)" );
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status = pthread_mutexattr_setprioceiling( &destroyed_attr, -1 );
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assert( status == EINVAL );
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/* create a thread */
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status = pthread_create( &Task_id, NULL, Task_1, NULL );
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assert( !status );
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/* now try some basic mutex operations */
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empty_line();
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puts( "Init: pthread_mutex_init - EINVAL (NULL mutex_id)" );
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status = pthread_mutex_init( NULL, &attr );
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assert( status == EINVAL );
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| 230 |
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puts( "Init: pthread_mutex_init - EINVAL (not initialized attr)" );
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status = pthread_mutex_init( &Mutex_id, &destroyed_attr );
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assert( status == EINVAL );
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/* must get around error checks in attribute set routines */
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attr.protocol = -1;
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puts( "Init: pthread_mutex_init - EINVAL (bad protocol)" );
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status = pthread_mutex_init( &Mutex_id, &attr );
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| 239 |
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assert( status == EINVAL );
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| 241 |
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/* must get around error checks in attribute set routines */
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| 242 |
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attr.protocol = PTHREAD_PRIO_INHERIT;
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attr.prio_ceiling = -1;
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| 244 |
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| 245 |
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puts( "Init: pthread_mutex_init - EINVAL (bad priority ceiling)" );
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| 246 |
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status = pthread_mutex_init( &Mutex_id, &attr );
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| 247 |
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assert( status == EINVAL );
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| 248 |
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| 249 |
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/* now set up for a success pthread_mutex_init */
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| 250 |
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| 251 |
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puts( "Init: Resetting mutex attributes" );
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| 252 |
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status = pthread_mutexattr_init( &attr );
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| 253 |
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assert( !status );
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| 254 |
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| 255 |
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puts( "Init: Changing mutex attributes" );
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| 256 |
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status = pthread_mutexattr_setprotocol( &attr, PTHREAD_PRIO_INHERIT );
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| 257 |
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assert( !status );
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| 258 |
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| 259 |
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status = pthread_mutexattr_setprioceiling( &attr, 128 );
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| 260 |
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assert( !status );
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| 261 |
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| 262 |
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status = pthread_mutexattr_setpshared( &attr, PTHREAD_PROCESS_SHARED );
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| 263 |
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assert( !status );
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| 264 |
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| 265 |
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Print_mutexattr( "Init: ", &attr );
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| 266 |
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| 267 |
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puts( "Init: Resetting mutex attributes" );
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| 268 |
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status = pthread_mutexattr_init( &attr );
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| 269 |
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assert( !status );
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| 270 |
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| 271 |
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/*
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| 272 |
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* Set the protocol to priority ceiling so the owner check happens
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| 273 |
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* and the EPERM test (later) will work.
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| 274 |
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*/
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| 275 |
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| 276 |
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status = pthread_mutexattr_setprotocol( &attr, PTHREAD_PRIO_INHERIT );
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| 277 |
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assert( !status );
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| 278 |
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| 279 |
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puts( "Init: pthread_mutex_init - SUCCESSFUL" );
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| 280 |
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status = pthread_mutex_init( &Mutex_id, &attr );
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| 281 |
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if ( status )
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| 282 |
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printf( "status = %d\n", status );
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| 283 |
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assert( !status );
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| 284 |
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| 285 |
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/*
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| 286 |
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* This is not required to be an error and when it is, there are
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| 287 |
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* behavioral conflicts with other implementations.
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| 288 |
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*/
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| 289 |
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puts( "Init: pthread_mutex_init - EBUSY (reinitialize an existing mutex) - skipped" );
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| 290 |
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| 291 |
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#if 0
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| 292 |
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status = pthread_mutex_init( &Mutex_id, &attr );
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| 293 |
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if ( !status )
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| 294 |
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printf( "status = %d\n", status );
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| 295 |
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assert( status == EBUSY );
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| 296 |
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#endif
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| 297 |
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| 298 |
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puts( "Init: pthread_mutex_trylock - EINVAL (illegal ID)" );
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| 299 |
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status = pthread_mutex_trylock( &Mutex_bad_id );
|
| 300 |
|
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if ( status != EINVAL )
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| 301 |
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printf( "status = %d\n", status );
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| 302 |
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assert( status == EINVAL );
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| 303 |
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| 304 |
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puts( "Init: pthread_mutex_trylock - SUCCESSFUL" );
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| 305 |
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status = pthread_mutex_trylock( &Mutex_id );
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| 306 |
|
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if ( status )
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| 307 |
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printf( "status = %d\n", status );
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| 308 |
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assert( !status );
|
| 309 |
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| 310 |
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puts( "Init: pthread_mutex_trylock - EDEADLK (already locked)" );
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| 311 |
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status = pthread_mutex_trylock( &Mutex_id );
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| 312 |
|
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if ( status != EDEADLK )
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| 313 |
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printf( "status = %d\n", status );
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| 314 |
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assert( status == EDEADLK );
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| 315 |
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| 316 |
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puts( "Init: pthread_mutex_lock - EDEADLK (already locked)" );
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| 317 |
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status = pthread_mutex_lock( &Mutex_id );
|
| 318 |
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if ( status != EDEADLK )
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| 319 |
|
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printf( "status = %d\n", status );
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| 320 |
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assert( status == EDEADLK );
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| 321 |
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| 322 |
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puts( "Init: Sleep 1 second" );
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| 323 |
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| 324 |
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sleep( 1 );
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| 325 |
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| 326 |
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/* switch to task 1 */
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| 327 |
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| 328 |
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puts( "Init: pthread_mutex_unlock - EINVAL (invalid id)" );
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| 329 |
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status = pthread_mutex_unlock( &Mutex_bad_id );
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| 330 |
|
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if ( status != EINVAL )
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| 331 |
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printf( "status = %d\n", status );
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| 332 |
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assert( status == EINVAL );
|
| 333 |
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| 334 |
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puts( "Init: pthread_mutex_unlock - SUCCESSFUL" );
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| 335 |
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status = pthread_mutex_unlock( &Mutex_id );
|
| 336 |
|
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if ( status )
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| 337 |
|
|
printf( "status = %d\n", status );
|
| 338 |
|
|
assert( !status );
|
| 339 |
|
|
|
| 340 |
|
|
puts( "Init: pthread_mutex_unlock - EPERM (not owner)" );
|
| 341 |
|
|
status = pthread_mutex_unlock( &Mutex_id );
|
| 342 |
|
|
if ( status != EPERM )
|
| 343 |
|
|
printf( "status = %d\n", status );
|
| 344 |
|
|
assert( status == EPERM );
|
| 345 |
|
|
|
| 346 |
|
|
times.tv_sec = 0;
|
| 347 |
|
|
times.tv_nsec = 500000000;
|
| 348 |
|
|
puts( "Init: pthread_mutex_timedlock - time out in 1/2 second" );
|
| 349 |
|
|
status = pthread_mutex_timedlock( &Mutex_id, × );
|
| 350 |
|
|
if ( status != EAGAIN )
|
| 351 |
|
|
printf( "status = %d\n", status );
|
| 352 |
|
|
assert( status == EAGAIN );
|
| 353 |
|
|
|
| 354 |
|
|
/* switch to idle */
|
| 355 |
|
|
|
| 356 |
|
|
puts( "Init: pthread_mutex_timedlock - EAGAIN (timeout)" );
|
| 357 |
|
|
|
| 358 |
|
|
/* destroy a mutex */
|
| 359 |
|
|
|
| 360 |
|
|
empty_line();
|
| 361 |
|
|
|
| 362 |
|
|
puts( "Init: pthread_mutex_init - SUCCESSFUL" );
|
| 363 |
|
|
status = pthread_mutex_init( &Mutex2_id, &attr );
|
| 364 |
|
|
if ( status )
|
| 365 |
|
|
printf( "status = %d\n", status );
|
| 366 |
|
|
assert( !status );
|
| 367 |
|
|
|
| 368 |
|
|
puts( "Init: pthread_mutex_init - EAGAIN (too many)" );
|
| 369 |
|
|
status = pthread_mutex_init( &Mutex3_id, &attr );
|
| 370 |
|
|
assert( status == EAGAIN );
|
| 371 |
|
|
|
| 372 |
|
|
puts( "Init: pthread_mutexattr_destroy - SUCCESSFUL" );
|
| 373 |
|
|
status = pthread_mutexattr_destroy( &attr );
|
| 374 |
|
|
assert( !status );
|
| 375 |
|
|
|
| 376 |
|
|
puts( "Init: pthread_mutex_destroy - SUCCESSFUL" );
|
| 377 |
|
|
status = pthread_mutex_destroy( &Mutex2_id );
|
| 378 |
|
|
assert( !status );
|
| 379 |
|
|
|
| 380 |
|
|
puts( "Init: pthread_mutex_destroy - EINVAL (invalid id)" );
|
| 381 |
|
|
status = pthread_mutex_destroy( &Mutex_bad_id );
|
| 382 |
|
|
assert( status == EINVAL );
|
| 383 |
|
|
|
| 384 |
|
|
/* destroy a busy mutex */
|
| 385 |
|
|
|
| 386 |
|
|
empty_line();
|
| 387 |
|
|
|
| 388 |
|
|
puts( "Init: pthread_mutexattr_init - SUCCESSFUL" );
|
| 389 |
|
|
status = pthread_mutexattr_init( &attr );
|
| 390 |
|
|
assert( !status );
|
| 391 |
|
|
|
| 392 |
|
|
puts( "Init: pthread_mutex_init - SUCCESSFUL" );
|
| 393 |
|
|
status = pthread_mutex_init( &Mutex2_id, &attr );
|
| 394 |
|
|
assert( !status );
|
| 395 |
|
|
|
| 396 |
|
|
puts( "Init: pthread_mutex_trylock - SUCCESSFUL" );
|
| 397 |
|
|
status = pthread_mutex_trylock( &Mutex2_id );
|
| 398 |
|
|
if ( status )
|
| 399 |
|
|
printf( "status = %d\n", status );
|
| 400 |
|
|
assert( !status );
|
| 401 |
|
|
|
| 402 |
|
|
puts( "Init: pthread_mutex_destroy - EBUSY (already locked)" );
|
| 403 |
|
|
status = pthread_mutex_destroy( &Mutex2_id );
|
| 404 |
|
|
if ( status != EBUSY )
|
| 405 |
|
|
printf( "status = %d\n", status );
|
| 406 |
|
|
assert( status == EBUSY );
|
| 407 |
|
|
|
| 408 |
|
|
puts( "Init: pthread_mutex_unlock - SUCCESSFUL" );
|
| 409 |
|
|
status = pthread_mutex_unlock( &Mutex2_id );
|
| 410 |
|
|
assert( !status );
|
| 411 |
|
|
|
| 412 |
|
|
puts( "Init: pthread_mutex_destroy - SUCCESSFUL" );
|
| 413 |
|
|
status = pthread_mutex_destroy( &Mutex2_id );
|
| 414 |
|
|
assert( !status );
|
| 415 |
|
|
|
| 416 |
|
|
/* priority inherit mutex */
|
| 417 |
|
|
|
| 418 |
|
|
empty_line();
|
| 419 |
|
|
|
| 420 |
|
|
puts( "Init: pthread_mutexattr_init - SUCCESSFUL" );
|
| 421 |
|
|
status = pthread_mutexattr_init( &attr );
|
| 422 |
|
|
assert( !status );
|
| 423 |
|
|
|
| 424 |
|
|
puts(
|
| 425 |
|
|
"Init: pthread_mutexattr_setprotocol - SUCCESSFUL (PTHREAD_PRIO_INHERIT)"
|
| 426 |
|
|
);
|
| 427 |
|
|
status = pthread_mutexattr_setprotocol( &attr, PTHREAD_PRIO_INHERIT );
|
| 428 |
|
|
assert( !status );
|
| 429 |
|
|
|
| 430 |
|
|
puts( "Init: pthread_mutex_init - SUCCESSFUL" );
|
| 431 |
|
|
status = pthread_mutex_init( &Mutex2_id, &attr );
|
| 432 |
|
|
assert( !status );
|
| 433 |
|
|
|
| 434 |
|
|
puts( "Init: pthread_mutex_trylock - SUCCESSFUL" );
|
| 435 |
|
|
status = pthread_mutex_trylock( &Mutex2_id );
|
| 436 |
|
|
assert( !status );
|
| 437 |
|
|
|
| 438 |
|
|
/* create a thread at a lower priority */
|
| 439 |
|
|
|
| 440 |
|
|
status = pthread_create( &Task2_id, NULL, Task_2, NULL );
|
| 441 |
|
|
assert( !status );
|
| 442 |
|
|
|
| 443 |
|
|
/* set priority of Task2 to highest priority */
|
| 444 |
|
|
|
| 445 |
|
|
param.sched_priority = 254;
|
| 446 |
|
|
|
| 447 |
|
|
puts( "Init: pthread_setschedparam - Setting Task2 priority to highest" );
|
| 448 |
|
|
status = pthread_setschedparam( Task2_id, SCHED_FIFO, ¶m );
|
| 449 |
|
|
assert( !status );
|
| 450 |
|
|
|
| 451 |
|
|
/* switching to Task2 */
|
| 452 |
|
|
|
| 453 |
|
|
status = pthread_getschedparam( pthread_self(), &policy, ¶m );
|
| 454 |
|
|
assert( !status );
|
| 455 |
|
|
printf( "Init: pthread_getschedparam - priority = %d\n", param.sched_priority);
|
| 456 |
|
|
|
| 457 |
|
|
puts( "Init: pthread_mutex_unlock - SUCCESSFUL" );
|
| 458 |
|
|
status = pthread_mutex_unlock( &Mutex2_id );
|
| 459 |
|
|
assert( !status );
|
| 460 |
|
|
|
| 461 |
|
|
puts( "Init: pthread_mutexattr_destroy - SUCCESSFUL" );
|
| 462 |
|
|
status = pthread_mutexattr_destroy( &attr );
|
| 463 |
|
|
assert( !status );
|
| 464 |
|
|
|
| 465 |
|
|
puts( "Init: pthread_mutex_destroy - SUCCESSFUL" );
|
| 466 |
|
|
status = pthread_mutex_destroy( &Mutex2_id );
|
| 467 |
|
|
assert( !status );
|
| 468 |
|
|
|
| 469 |
|
|
/* priority ceiling mutex */
|
| 470 |
|
|
|
| 471 |
|
|
empty_line();
|
| 472 |
|
|
|
| 473 |
|
|
puts( "Init: pthread_mutexattr_init - SUCCESSFUL" );
|
| 474 |
|
|
status = pthread_mutexattr_init( &attr );
|
| 475 |
|
|
assert( !status );
|
| 476 |
|
|
|
| 477 |
|
|
puts(
|
| 478 |
|
|
"Init: pthread_mutexattr_setprotocol - SUCCESSFUL (PTHREAD_PRIO_PROTECT)"
|
| 479 |
|
|
);
|
| 480 |
|
|
status = pthread_mutexattr_setprotocol( &attr, PTHREAD_PRIO_PROTECT );
|
| 481 |
|
|
assert( !status );
|
| 482 |
|
|
|
| 483 |
|
|
puts( "Init: pthread_mutex_init - SUCCESSFUL" );
|
| 484 |
|
|
status = pthread_mutex_init( &Mutex2_id, &attr );
|
| 485 |
|
|
assert( !status );
|
| 486 |
|
|
|
| 487 |
|
|
puts( "Init: pthread_mutex_getprioceiling - EINVAL (invalid id)" );
|
| 488 |
|
|
status = pthread_mutex_getprioceiling( &Mutex_bad_id, &ceiling );
|
| 489 |
|
|
assert( status == EINVAL );
|
| 490 |
|
|
|
| 491 |
|
|
puts( "Init: pthread_mutex_getprioceiling - EINVAL (NULL ceiling)" );
|
| 492 |
|
|
status = pthread_mutex_getprioceiling( &Mutex2_id, NULL );
|
| 493 |
|
|
assert( status == EINVAL );
|
| 494 |
|
|
|
| 495 |
|
|
status = pthread_mutex_getprioceiling( &Mutex2_id, &ceiling );
|
| 496 |
|
|
assert( !status );
|
| 497 |
|
|
printf( "Init: pthread_mutex_getprioceiling - %d\n", ceiling );
|
| 498 |
|
|
|
| 499 |
|
|
puts( "Init: pthread_mutex_setprioceiling - EINVAL (invalid id)" );
|
| 500 |
|
|
status = pthread_mutex_setprioceiling( &Mutex_bad_id, 200, &old_ceiling );
|
| 501 |
|
|
assert( status == EINVAL );
|
| 502 |
|
|
|
| 503 |
|
|
puts( "Init: pthread_mutex_setprioceiling - EINVAL (illegal priority)" );
|
| 504 |
|
|
status = pthread_mutex_setprioceiling( &Mutex2_id, 512, &old_ceiling );
|
| 505 |
|
|
assert( status == EINVAL );
|
| 506 |
|
|
|
| 507 |
|
|
puts( "Init: pthread_mutex_setprioceiling - EINVAL (NULL ceiling)" );
|
| 508 |
|
|
status = pthread_mutex_setprioceiling( &Mutex2_id, 128, NULL );
|
| 509 |
|
|
assert( status == EINVAL );
|
| 510 |
|
|
|
| 511 |
|
|
/* normal cases of set priority ceiling */
|
| 512 |
|
|
|
| 513 |
|
|
puts( "Init: pthread_mutex_setprioceiling - new ceiling = 200" );
|
| 514 |
|
|
status = pthread_mutex_setprioceiling( &Mutex2_id, 200, &old_ceiling );
|
| 515 |
|
|
assert( !status );
|
| 516 |
|
|
printf(
|
| 517 |
|
|
"Init: pthread_mutex_setprioceiling - old ceiling = %d\n",old_ceiling
|
| 518 |
|
|
);
|
| 519 |
|
|
|
| 520 |
|
|
status = pthread_getschedparam( pthread_self(), &policy, ¶m );
|
| 521 |
|
|
assert( !status );
|
| 522 |
|
|
printf(
|
| 523 |
|
|
"Init: pthread_getschedparam - priority = %d\n", param.sched_priority
|
| 524 |
|
|
);
|
| 525 |
|
|
|
| 526 |
|
|
puts( "Init: pthread_mutex_trylock - SUCCESSFUL" );
|
| 527 |
|
|
status = pthread_mutex_trylock( &Mutex2_id );
|
| 528 |
|
|
assert( !status );
|
| 529 |
|
|
|
| 530 |
|
|
status = pthread_getschedparam( pthread_self(), &policy, ¶m );
|
| 531 |
|
|
assert( !status );
|
| 532 |
|
|
printf(
|
| 533 |
|
|
"Init: pthread_getschedparam - priority = %d\n", param.sched_priority
|
| 534 |
|
|
);
|
| 535 |
|
|
|
| 536 |
|
|
/* create a thread at a higher priority */
|
| 537 |
|
|
|
| 538 |
|
|
status = pthread_create( &Task3_id, NULL, Task_3, NULL );
|
| 539 |
|
|
assert( !status );
|
| 540 |
|
|
|
| 541 |
|
|
/* set priority of Task3 to highest priority */
|
| 542 |
|
|
|
| 543 |
|
|
param.sched_priority = 199;
|
| 544 |
|
|
|
| 545 |
|
|
status = pthread_setschedparam( Task3_id, SCHED_FIFO, ¶m );
|
| 546 |
|
|
assert( !status );
|
| 547 |
|
|
puts( "Init: pthread_setschedparam - set Task3 priority to highest" );
|
| 548 |
|
|
|
| 549 |
|
|
/* DOES NOT SWITCH to Task3 */
|
| 550 |
|
|
|
| 551 |
|
|
puts( "Init: Sleep 1 second" );
|
| 552 |
|
|
assert( !status );
|
| 553 |
|
|
sleep( 1 );
|
| 554 |
|
|
|
| 555 |
|
|
/* switch to task 3 */
|
| 556 |
|
|
|
| 557 |
|
|
puts( "Init: pthread_mutex_unlock - SUCCESSFUL" );
|
| 558 |
|
|
status = pthread_mutex_unlock( &Mutex2_id );
|
| 559 |
|
|
assert( !status );
|
| 560 |
|
|
|
| 561 |
|
|
status = pthread_mutex_getprioceiling( &Mutex2_id, &ceiling );
|
| 562 |
|
|
assert( !status );
|
| 563 |
|
|
printf( "Init: pthread_mutex_getprioceiling- ceiling = %d\n", ceiling );
|
| 564 |
|
|
|
| 565 |
|
|
/* set priority of Init to highest priority */
|
| 566 |
|
|
|
| 567 |
|
|
param.sched_priority = 254;
|
| 568 |
|
|
|
| 569 |
|
|
status = pthread_setschedparam( Init_id, SCHED_FIFO, ¶m );
|
| 570 |
|
|
assert( !status );
|
| 571 |
|
|
puts( "Init: pthread_setschedparam - set Init priority to highest" );
|
| 572 |
|
|
|
| 573 |
|
|
puts( "Init: pthread_mutex_lock - EINVAL (priority ceiling violation)" );
|
| 574 |
|
|
status = pthread_mutex_lock( &Mutex2_id );
|
| 575 |
|
|
if ( status != EINVAL )
|
| 576 |
|
|
printf( "status = %d\n", status );
|
| 577 |
|
|
assert( status == EINVAL );
|
| 578 |
|
|
|
| 579 |
|
|
puts( "*** END OF POSIX TEST 5 ***" );
|
| 580 |
|
|
exit( 0 );
|
| 581 |
|
|
|
| 582 |
|
|
return NULL; /* just so the compiler thinks we returned something */
|
| 583 |
|
|
}
|