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/**
* @file
*
* @ingroup RTEMSImplClassicModes
*
* @brief Classic Modes 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_MODESIMPL_H
#define _RTEMS_RTEMS_MODESIMPL_H
#include <rtems/rtems/modes.h>
#include <rtems/score/isrlevel.h>
#ifdef __cplusplus
extern "C" {
#endif
/**
* @defgroup RTEMSImplClassicModes Task Modes
*
* @ingroup RTEMSImplClassic
*
* @brief This group contains the implementation to support task modes.
*
* @{
*/
/**
* @brief Checks if any of the mode flags in mask are set in mode_set.
*
* This function returns TRUE if any of the mode flags in mask
* are set in mode_set, and FALSE otherwise.
*/
RTEMS_INLINE_ROUTINE bool _Modes_Mask_changed (
rtems_mode mode_set,
rtems_mode masks
)
{
return ( mode_set & masks ) ? true : false;
}
/**
* @brief Checks if mode_set says that Asynchronous Signal Processing is disabled.
*
* This function returns TRUE if mode_set indicates that Asynchronous
* Signal Processing is disabled, and FALSE otherwise.
*/
RTEMS_INLINE_ROUTINE bool _Modes_Is_asr_disabled (
rtems_mode mode_set
)
{
return (mode_set & RTEMS_ASR_MASK) == RTEMS_NO_ASR;
}
/**
* @brief Checks if mode_set indicates that preemption is enabled.
*
* This function returns TRUE if mode_set indicates that preemption
* is enabled, and FALSE otherwise.
*/
RTEMS_INLINE_ROUTINE bool _Modes_Is_preempt (
rtems_mode mode_set
)
{
return (mode_set & RTEMS_PREEMPT_MASK) == RTEMS_PREEMPT;
}
/**
* @brief Checks if mode_set indicates that timeslicing is enabled.
*
* This function returns TRUE if mode_set indicates that timeslicing
* is enabled, and FALSE otherwise.
*/
RTEMS_INLINE_ROUTINE bool _Modes_Is_timeslice (
rtems_mode mode_set
)
{
return (mode_set & RTEMS_TIMESLICE_MASK) == RTEMS_TIMESLICE;
}
/**
* @brief Gets the interrupt level portion of the mode_set.
*
* This function returns the interrupt level portion of the mode_set.
*/
RTEMS_INLINE_ROUTINE ISR_Level _Modes_Get_interrupt_level (
rtems_mode mode_set
)
{
return ( mode_set & RTEMS_INTERRUPT_MASK );
}
/**
* @brief Sets the current interrupt level to that specified in the mode_set.
*
* This routine sets the current interrupt level to that specified
* in the mode_set.
*/
RTEMS_INLINE_ROUTINE void _Modes_Set_interrupt_level (
rtems_mode mode_set
)
{
_ISR_Set_level( _Modes_Get_interrupt_level( mode_set ) );
}
/**
* @brief Changes the modes in old_mode_set indicated by
* mask to the requested values in new_mode_set.
*
* This routine changes the modes in old_mode_set indicated by
* mask to the requested values in new_mode_set. The resulting
* mode set is returned in out_mode_set and the modes that changed
* is returned in changed.
*/
RTEMS_INLINE_ROUTINE void _Modes_Change (
rtems_mode old_mode_set,
rtems_mode new_mode_set,
rtems_mode mask,
rtems_mode *out_mode_set,
rtems_mode *changed
)
{
rtems_mode _out_mode;
_out_mode = old_mode_set;
_out_mode &= ~mask;
_out_mode |= new_mode_set & mask;
*changed = _out_mode ^ old_mode_set;
*out_mode_set = _out_mode;
}
#ifdef __cplusplus
}
#endif
/**@}*/
#endif
/* end of include file */
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