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/**
* @file
*
* @ingroup ClassicTasksImpl
*
* @brief Classic Tasks Manager Implementation
*/
/* COPYRIGHT (c) 1989-2008.
* 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_RTEMS_TASKSIMPL_H
#define _RTEMS_RTEMS_TASKSIMPL_H
#include <rtems/rtems/tasks.h>
#include <rtems/score/objectimpl.h>
#include <rtems/score/threadimpl.h>
#ifdef __cplusplus
extern "C" {
#endif
/**
* @defgroup ClassicTasksImpl Classic Tasks Manager Implementation
*
* @ingroup ClassicTasks
*
* @{
*/
/**
* @brief Instantiate RTEMS Classic API Tasks Data
*
* This constant is defined to extern most of the time when using
* this header file. However by defining it to nothing, the data
* declared in this header file can be instantiated. This is done
* in a single per manager file.
*/
#ifndef RTEMS_TASKS_EXTERN
#define RTEMS_TASKS_EXTERN extern
#endif
/**
* The following instantiates the information control block used to
* manage this class of objects.
*/
RTEMS_TASKS_EXTERN Objects_Information _RTEMS_tasks_Information;
/**
* @brief RTEMS Task Manager Initialization
*
* This routine initializes all Task Manager related data structures.
*/
void _RTEMS_tasks_Manager_initialization(void);
/**
* @brief RTEMS User Task Initialization
*
* This routine creates and starts all configured user
* initialization threads.
*/
void _RTEMS_tasks_Initialize_user_tasks( void );
/**
* @brief RTEMS Tasks Invoke Task Variable Destructor
*
* This routine invokes the optional user provided destructor on the
* task variable and frees the memory for the task variable.
*/
void _RTEMS_Tasks_Invoke_task_variable_dtor(
Thread_Control *the_thread,
rtems_task_variable_t *tvp
);
/**
* @brief Allocates a task control block.
*
* This function allocates a task control block from
* the inactive chain of free task control blocks.
*/
RTEMS_INLINE_ROUTINE Thread_Control *_RTEMS_tasks_Allocate( void )
{
_Thread_Kill_zombies();
return (Thread_Control *) _Objects_Allocate( &_RTEMS_tasks_Information );
}
/**
* @brief Frees a task control block.
*
* This routine frees a task control block to the
* inactive chain of free task control blocks.
*/
RTEMS_INLINE_ROUTINE void _RTEMS_tasks_Free (
Thread_Control *the_task
)
{
_Objects_Free(
_Objects_Get_information_id( the_task->Object.id ),
&the_task->Object
);
}
/**
* @brief Converts an RTEMS API priority into a core priority.
*
* This function converts an RTEMS API priority into a core priority.
*/
RTEMS_INLINE_ROUTINE Priority_Control _RTEMS_tasks_Priority_to_Core(
rtems_task_priority priority
)
{
return (Priority_Control) priority;
}
/**
* @brief Converts a core priority into an RTEMS API priority.
*
* This function converts a core priority into an RTEMS API priority.
*/
RTEMS_INLINE_ROUTINE rtems_task_priority _RTEMS_tasks_Priority_from_Core (
Priority_Control priority
)
{
return (rtems_task_priority) priority;
}
/**
* @brief Checks whether the priority is a valid user task.
*
* This function returns TRUE if the_priority is a valid user task priority
* and FALSE otherwise.
*/
RTEMS_INLINE_ROUTINE bool _RTEMS_tasks_Priority_is_valid (
rtems_task_priority the_priority
)
{
return ( ( the_priority >= RTEMS_MINIMUM_PRIORITY ) &&
( the_priority <= RTEMS_MAXIMUM_PRIORITY ) );
}
/**@}*/
#if defined(RTEMS_MULTIPROCESSING)
#include <rtems/rtems/taskmp.h>
#endif
#ifdef __cplusplus
}
#endif
#endif
/* end of include file */
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