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Diffstat (limited to 'cpukit/rtems/inline/rtems/rtems/sem.inl')
-rw-r--r-- | cpukit/rtems/inline/rtems/rtems/sem.inl | 110 |
1 files changed, 110 insertions, 0 deletions
diff --git a/cpukit/rtems/inline/rtems/rtems/sem.inl b/cpukit/rtems/inline/rtems/rtems/sem.inl new file mode 100644 index 0000000000..de876d896a --- /dev/null +++ b/cpukit/rtems/inline/rtems/rtems/sem.inl @@ -0,0 +1,110 @@ +/** + * @file rtems/rtems/sem.inl + * + * This file contains the static inlin implementation of the inlined + * routines from the Semaphore Manager. + */ + +/* 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.com/license/LICENSE. + * + * $Id$ + */ + +#ifndef _RTEMS_RTEMS_SEM_H +# error "Never use <rtems/rtems/sem.inl> directly; include <rtems/rtems/sem.h> instead." +#endif + +#ifndef _RTEMS_RTEMS_SEM_INL +#define _RTEMS_RTEMS_SEM_INL + +/** + * @addtogroup ClassicSem + * @{ + */ + +/** + * @brief Semaphore_Allocate + * + * This function allocates a semaphore control block from + * the inactive chain of free semaphore control blocks. + */ +RTEMS_INLINE_ROUTINE Semaphore_Control *_Semaphore_Allocate( void ) +{ + return (Semaphore_Control *) _Objects_Allocate( &_Semaphore_Information ); +} + +/** + * @brief Semaphore_Free + * + * This routine frees a semaphore control block to the + * inactive chain of free semaphore control blocks. + */ +RTEMS_INLINE_ROUTINE void _Semaphore_Free ( + Semaphore_Control *the_semaphore +) +{ + _Objects_Free( &_Semaphore_Information, &the_semaphore->Object ); +} + +/** + * @brief Semaphore_Get + * + * This function maps semaphore IDs to semaphore control blocks. + * If ID corresponds to a local semaphore, then it returns + * the_semaphore control pointer which maps to ID and location + * is set to OBJECTS_LOCAL. if the semaphore ID is global and + * resides on a remote node, then location is set to OBJECTS_REMOTE, + * and the_semaphore is undefined. Otherwise, location is set + * to OBJECTS_ERROR and the_semaphore is undefined. + */ +RTEMS_INLINE_ROUTINE Semaphore_Control *_Semaphore_Get ( + Objects_Id id, + Objects_Locations *location +) +{ + return (Semaphore_Control *) + _Objects_Get( &_Semaphore_Information, id, location ); +} + +/** + * @brief Semaphore_Get (Interrupts disabled) + * + * This function maps semaphore IDs to semaphore control blocks. + * If ID corresponds to a local semaphore, then it returns + * the_semaphore control pointer which maps to ID and location + * is set to OBJECTS_LOCAL. if the semaphore ID is global and + * resides on a remote node, then location is set to OBJECTS_REMOTE, + * and the_semaphore is undefined. Otherwise, location is set + * to OBJECTS_ERROR and the_semaphore is undefined. + */ +RTEMS_INLINE_ROUTINE Semaphore_Control *_Semaphore_Get_interrupt_disable ( + Objects_Id id, + Objects_Locations *location, + ISR_Level *level +) +{ + return (Semaphore_Control *) + _Objects_Get_isr_disable( &_Semaphore_Information, id, location, level ); +} + +/** + * @brief Semaphore_Is_null + * + * This function returns TRUE if the_semaphore is NULL and FALSE otherwise. + */ +RTEMS_INLINE_ROUTINE bool _Semaphore_Is_null ( + Semaphore_Control *the_semaphore +) +{ + return ( the_semaphore == NULL ); +} + +/**@}*/ + +#endif +/* end of include file */ |