cancelrun.c

RTEMS (Real-Time Executive for Multiprocessor Systems) is a free open source real-time operating sys

/*
 *  $Id: cancelrun.c,v 1.6 2002/12/12 01:04:18 joel Exp $
 */

#if HAVE_CONFIG_H
#include "config.h"
#endif

#include <pthread.h>
#include <errno.h>

#include <rtems/system.h>
#include <rtems/score/chain.h>
#include <rtems/score/isr.h>
#include <rtems/score/thread.h>
#include <rtems/score/wkspace.h>
#include <rtems/posix/cancel.h>
#include <rtems/posix/pthread.h>
#include <rtems/posix/threadsup.h>

/*PAGE
 *
 *  _POSIX_Threads_cancel_run
 *
 */

void _POSIX_Threads_cancel_run( 
  Thread_Control *the_thread
)
{
  POSIX_Cancel_Handler_control      *handler;
  Chain_Control                     *handler_stack;
  POSIX_API_Control                 *thread_support;
  ISR_Level                          level;
 
  thread_support = the_thread->API_Extensions[ THREAD_API_POSIX ];
 
  handler_stack = &thread_support->Cancellation_Handlers;
 
  thread_support->cancelability_state = PTHREAD_CANCEL_DISABLE;

  while ( !_Chain_Is_empty( handler_stack ) ) {
    _ISR_Disable( level );
      handler = (POSIX_Cancel_Handler_control *) 
           _Chain_Tail( handler_stack )->previous;
      _Chain_Extract_unprotected( &handler->Node );
    _ISR_Enable( level );
 
    (*handler->routine)( handler->arg );

    _Workspace_Free( handler );
  }

  /* Now we can delete the thread */

  the_thread->Wait.return_argument = (unsigned32 *)PTHREAD_CANCELED;
  _Thread_Close(
    _Objects_Get_information( the_thread->Object.id ),
    the_thread
  );
  _POSIX_Threads_Free( the_thread );

}