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Diffstat (limited to 'c/src/exec/rtems/inline/rtems/rtems/sem.inl')
-rw-r--r-- | c/src/exec/rtems/inline/rtems/rtems/sem.inl | 93 |
1 files changed, 93 insertions, 0 deletions
diff --git a/c/src/exec/rtems/inline/rtems/rtems/sem.inl b/c/src/exec/rtems/inline/rtems/rtems/sem.inl new file mode 100644 index 0000000000..25d0eeafe5 --- /dev/null +++ b/c/src/exec/rtems/inline/rtems/rtems/sem.inl @@ -0,0 +1,93 @@ +/* sem.inl + * + * This file contains the static inlin implementation of the inlined + * routines from the Semaphore Manager. + * + * COPYRIGHT (c) 1989-1997. + * On-Line Applications Research Corporation (OAR). + * Copyright assigned to U.S. Government, 1994. + * + * The license and distribution terms for this file may in + * the file LICENSE in this distribution or at + * http://www.OARcorp.com/rtems/license.html. + * + * $Id$ + */ + +#ifndef __SEMAPHORE_inl +#define __SEMAPHORE_inl + +/*PAGE + * + * _Semaphore_Allocate + * + * DESCRIPTION: + * + * 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 ); +} + +/*PAGE + * + * _Semaphore_Free + * + * DESCRIPTION: + * + * 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 ); +} + +/*PAGE + * + * _Semaphore_Get + * + * DESCRIPTION: + * + * 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 ); +} + +/*PAGE + * + * _Semaphore_Is_null + * + * DESCRIPTION: + * + * This function returns TRUE if the_semaphore is NULL and FALSE otherwise. + */ + +RTEMS_INLINE_ROUTINE boolean _Semaphore_Is_null ( + Semaphore_Control *the_semaphore +) +{ + return ( the_semaphore == NULL ); +} + +#endif +/* end of include file */ |