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158 |
chris |
/*
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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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208 |
chris |
* $Id: init.c,v 1.2 2001-09-27 12:02:24 chris Exp $
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158 |
chris |
*/
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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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212 |
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213 |
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puts( "Init: pthread_mutexattr_setprioceiling - EINVAL (not initialized)" );
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214 |
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status = pthread_mutexattr_setprioceiling( &destroyed_attr, -1 );
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assert( status == EINVAL );
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216 |
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217 |
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/* create a thread */
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218 |
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219 |
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status = pthread_create( &Task_id, NULL, Task_1, NULL );
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220 |
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assert( !status );
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221 |
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222 |
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/* now try some basic mutex operations */
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223 |
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224 |
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empty_line();
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225 |
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226 |
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puts( "Init: pthread_mutex_init - EINVAL (NULL mutex_id)" );
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227 |
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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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233 |
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234 |
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/* must get around error checks in attribute set routines */
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attr.protocol = -1;
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237 |
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puts( "Init: pthread_mutex_init - EINVAL (bad protocol)" );
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238 |
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status = pthread_mutex_init( &Mutex_id, &attr );
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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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attr.protocol = PTHREAD_PRIO_INHERIT;
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attr.prio_ceiling = -1;
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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 );
|
283 |
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assert( !status );
|
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
|
287 |
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* behavioral conflicts with other implementations.
|
288 |
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*/
|
289 |
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puts( "Init: pthread_mutex_init - EBUSY (reinitialize an existing mutex) - skipped" );
|
290 |
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|
291 |
|
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#if 0
|
292 |
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status = pthread_mutex_init( &Mutex_id, &attr );
|
293 |
|
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if ( !status )
|
294 |
|
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printf( "status = %d\n", status );
|
295 |
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assert( status == EBUSY );
|
296 |
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#endif
|
297 |
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298 |
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puts( "Init: pthread_mutex_trylock - EINVAL (illegal ID)" );
|
299 |
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status = pthread_mutex_trylock( &Mutex_bad_id );
|
300 |
|
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if ( status != EINVAL )
|
301 |
|
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printf( "status = %d\n", status );
|
302 |
|
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assert( status == EINVAL );
|
303 |
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|
304 |
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puts( "Init: pthread_mutex_trylock - SUCCESSFUL" );
|
305 |
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status = pthread_mutex_trylock( &Mutex_id );
|
306 |
|
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if ( status )
|
307 |
|
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printf( "status = %d\n", status );
|
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)" );
|
311 |
|
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status = pthread_mutex_trylock( &Mutex_id );
|
312 |
|
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if ( status != EDEADLK )
|
313 |
|
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printf( "status = %d\n", status );
|
314 |
|
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assert( status == EDEADLK );
|
315 |
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|
316 |
|
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puts( "Init: pthread_mutex_lock - EDEADLK (already locked)" );
|
317 |
|
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status = pthread_mutex_lock( &Mutex_id );
|
318 |
|
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if ( status != EDEADLK )
|
319 |
|
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printf( "status = %d\n", status );
|
320 |
|
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assert( status == EDEADLK );
|
321 |
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|
322 |
|
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puts( "Init: Sleep 1 second" );
|
323 |
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|
324 |
|
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sleep( 1 );
|
325 |
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|
326 |
|
|
/* switch to task 1 */
|
327 |
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|
328 |
|
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puts( "Init: pthread_mutex_unlock - EINVAL (invalid id)" );
|
329 |
|
|
status = pthread_mutex_unlock( &Mutex_bad_id );
|
330 |
|
|
if ( status != EINVAL )
|
331 |
|
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printf( "status = %d\n", status );
|
332 |
|
|
assert( status == EINVAL );
|
333 |
|
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|
334 |
|
|
puts( "Init: pthread_mutex_unlock - SUCCESSFUL" );
|
335 |
|
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status = pthread_mutex_unlock( &Mutex_id );
|
336 |
|
|
if ( status )
|
337 |
|
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printf( "status = %d\n", status );
|
338 |
|
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assert( !status );
|
339 |
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|
340 |
|
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puts( "Init: pthread_mutex_unlock - EPERM (not owner)" );
|
341 |
|
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status = pthread_mutex_unlock( &Mutex_id );
|
342 |
|
|
if ( status != EPERM )
|
343 |
|
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printf( "status = %d\n", status );
|
344 |
|
|
assert( status == EPERM );
|
345 |
|
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|
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 |
|
|
}
|