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diff --git a/testsuites/psxtests/psx01/task.c b/testsuites/psxtests/psx01/task.c
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+++ b/testsuites/psxtests/psx01/task.c
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+/*  Task_1_through_3
+ *
+ *  This routine serves as a test task.  It verifies the basic task
+ *  switching capabilities of the executive.
+ *
+ *  Input parameters:
+ *    argument - task argument
+ *
+ *  Output parameters:  NONE
+ *
+ *  COPYRIGHT (c) 1989-1997.
+ *  On-Line Applications Research Corporation (OAR).
+ *  Copyright assigned to U.S. Government, 1994.
+ *
+ *  The license and distribution terms for this file may in
+ *  the file LICENSE in this distribution or at
+ *  http://www.OARcorp.com/rtems/license.html.
+ *
+ *  $Id$
+ */
+
+#include "system.h"
+
+void Test_init_routine( void )
+{
+  puts( "Test_init_routine: invoked" );
+}
+
+
+void *Task_1_through_3(
+  void *argument
+)
+{
+  int            status;
+  pthread_once_t once = PTHREAD_ONCE_INIT;
+
+  puts( "Task_1: sched_yield to Init" );
+  status = sched_yield();
+  assert( !status );
+ 
+    /* switch to Task_1 */
+
+  /* now do some real testing */
+
+  empty_line();
+
+  /* get id of this thread */
+
+  Task_id = pthread_self();
+  printf( "Task_1: ID is 0x%08x\n", Task_id );
+
+  /* exercise pthread_equal */
+
+  status = pthread_equal( Task_id, Task_id );
+  if ( status )
+    puts( "Task_1: pthread_equal - match case passed" );
+  assert( status );
+
+  status = pthread_equal( Init_id, Task_id );
+  if ( !status )
+    puts( "Task_1: pthread_equal - different case passed" );
+  assert( !status );
+
+  puts( "Task_1: pthread_equal - first id bad" );
+  status = pthread_equal( -1, Task_id );
+  assert( !status );
+
+  puts( "Task_1: pthread_equal - second id bad" );
+  status = pthread_equal( Init_id, -1 );
+  assert( !status );
+
+  /* exercise pthread_once */
+
+  puts( "Task_1: pthread_once - EINVAL (NULL once_control)" );
+  status = pthread_once( NULL, Test_init_routine );
+  assert( status == EINVAL );
+
+  puts( "Task_1: pthread_once - EINVAL (NULL init_routine)" );
+  status = pthread_once( &once, NULL );
+  assert( status == EINVAL );
+
+  puts( "Task_1: pthread_once - SUCCESSFUL (init_routine executes)" );
+  status = pthread_once( &once, Test_init_routine );
+  assert( !status );
+
+  puts( "Task_1: pthread_once - SUCCESSFUL (init_routine does not execute)" );
+  status = pthread_once( &once, Test_init_routine );
+  assert( !status );
+
+  puts( "*** END OF POSIX TEST 1 ***" );
+  exit( 0 );
+
+  return NULL; /* just so the compiler thinks we returned something */
+}