pthreadimpl.h

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/*
 *  COPYRIGHT (c) 1989-2011.
 *  On-Line Applications Research Corporation (OAR).
 *
 *  The license and distribution terms for this file may be
 *  found in the file LICENSE in this distribution or at
 *  http://www.rtems.org/license/LICENSE.
 */

#ifndef _RTEMS_POSIX_PTHREADIMPL_H
#define _RTEMS_POSIX_PTHREADIMPL_H

#include <rtems/posix/pthread.h>
#include <rtems/posix/config.h>
#include <rtems/posix/threadsup.h>
#include <rtems/score/objectimpl.h>
#include <rtems/score/threadimpl.h>
#include <rtems/score/assert.h>

#ifdef __cplusplus
extern "C" {
#endif

#define PTHREAD_MINIMUM_STACK_SIZE (_Stack_Minimum() * 2)

POSIX_EXTERN Objects_Information  _POSIX_Threads_Information;

extern pthread_attr_t _POSIX_Threads_Default_attributes;

extern void (*_POSIX_Threads_Initialize_user_threads_p)(void);

void _POSIX_Threads_Manager_initialization(void);

RTEMS_INLINE_ROUTINE void _POSIX_Threads_Copy_attributes(
  pthread_attr_t        *dst_attr,
  const pthread_attr_t  *src_attr
);

RTEMS_INLINE_ROUTINE void _POSIX_Threads_Free(
  Thread_Control *the_pthread
);

RTEMS_INLINE_ROUTINE void _POSIX_Threads_Initialize_attributes(
  pthread_attr_t  *attr
);

void _POSIX_Threads_Sporadic_budget_callout(
  Thread_Control *the_thread
);

void _POSIX_Threads_Sporadic_budget_TSR(
  Objects_Id      id,
  void           *argument
);

int _POSIX_Thread_Translate_sched_param(
  int                                  policy,
  struct sched_param                  *param,
  Thread_CPU_budget_algorithms        *budget_algorithm,
  Thread_CPU_budget_algorithm_callout *budget_callout
);

/*
 * rtems_pthread_attribute_compare
 */
int rtems_pthread_attribute_compare(
  const pthread_attr_t *attr1,
  const pthread_attr_t *attr2
);

RTEMS_INLINE_ROUTINE Thread_Control *_POSIX_Threads_Allocate(void)
{
  _Objects_Allocator_lock();

  _Thread_Kill_zombies();

  return (Thread_Control *)
    _Objects_Allocate_unprotected( &_POSIX_Threads_Information );
}

/*
 * _POSIX_Threads_Copy_attributes
 */

RTEMS_INLINE_ROUTINE void _POSIX_Threads_Copy_attributes(
  pthread_attr_t        *dst_attr,
  const pthread_attr_t  *src_attr
)
{
  *dst_attr = *src_attr;
#if defined(RTEMS_SMP) && defined(__RTEMS_HAVE_SYS_CPUSET_H__)
  _Assert(
    dst_attr->affinitysetsize == sizeof(dst_attr->affinitysetpreallocated)
  );
  dst_attr->affinityset = &dst_attr->affinitysetpreallocated;
#endif
}

/*
 *  _POSIX_Threads_Free
 */

RTEMS_INLINE_ROUTINE void _POSIX_Threads_Free (
  Thread_Control *the_pthread
)
{
  _Objects_Free( &_POSIX_Threads_Information, &the_pthread->Object );
}

/*
 * _POSIX_Threads_Initialize_attributes
 */

RTEMS_INLINE_ROUTINE void _POSIX_Threads_Initialize_attributes(
  pthread_attr_t  *attr
)
{
  _POSIX_Threads_Copy_attributes(
    attr,
    &_POSIX_Threads_Default_attributes
  );
}

/*
 *  _POSIX_Threads_Is_null
 */

RTEMS_INLINE_ROUTINE bool _POSIX_Threads_Is_null (
  Thread_Control *the_pthread
)
{
  return !the_pthread;
}

#ifdef __cplusplus
}
#endif

#endif
/*  end of include file */