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Diffstat (limited to 'cpukit/posix/inline/rtems/posix/spinlock.inl')
-rw-r--r-- | cpukit/posix/inline/rtems/posix/spinlock.inl | 85 |
1 files changed, 85 insertions, 0 deletions
diff --git a/cpukit/posix/inline/rtems/posix/spinlock.inl b/cpukit/posix/inline/rtems/posix/spinlock.inl new file mode 100644 index 0000000000..1f33a29759 --- /dev/null +++ b/cpukit/posix/inline/rtems/posix/spinlock.inl @@ -0,0 +1,85 @@ +/** + * @file rtems/posix/spinlock.inl + */ + +/* + * This file contains the static inlin implementation of the inlined + * routines from the POSIX Spinlock Manager. + * + * COPYRIGHT (c) 1989-2006. + * 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_POSIX_SPINLOCK_INL +#define _RTEMS_POSIX_SPINLOCK_INL + +#include <pthread.h> + +/** + * @brief _POSIX_Spinlock_Allocate + * + * This function allocates a spinlock control block from + * the inactive chain of free spinlock control blocks. + */ +RTEMS_INLINE_ROUTINE POSIX_Spinlock_Control *_POSIX_Spinlock_Allocate( void ) +{ + return (POSIX_Spinlock_Control *) + _Objects_Allocate( &_POSIX_Spinlock_Information ); +} + +/** + * @brief _POSIX_Spinlock_Free + * + * This routine frees a spinlock control block to the + * inactive chain of free spinlock control blocks. + */ +RTEMS_INLINE_ROUTINE void _POSIX_Spinlock_Free ( + POSIX_Spinlock_Control *the_spinlock +) +{ + _Objects_Free( &_POSIX_Spinlock_Information, &the_spinlock->Object ); +} + +/** + * @brief _POSIX_Spinlock_Get + * + * This function maps spinlock IDs to spinlock control blocks. + * If ID corresponds to a local spinlock, then it returns + * the_spinlock control pointer which maps to ID and location + * is set to OBJECTS_LOCAL. if the spinlock ID is global and + * resides on a remote node, then location is set to OBJECTS_REMOTE, + * and the_spinlock is undefined. Otherwise, location is set + * to OBJECTS_ERROR and the_spinlock is undefined. + */ +RTEMS_INLINE_ROUTINE POSIX_Spinlock_Control *_POSIX_Spinlock_Get ( + pthread_spinlock_t *spinlock, + Objects_Locations *location +) +{ + return (POSIX_Spinlock_Control *) _Objects_Get( + &_POSIX_Spinlock_Information, + *((Objects_Id *)spinlock), + location + ); +} + +/** + * @brief _POSIX_Spinlock_Is_null + * + * This function returns TRUE if the_spinlock is NULL and FALSE otherwise. + */ +RTEMS_INLINE_ROUTINE boolean _POSIX_Spinlock_Is_null ( + POSIX_Spinlock_Control *the_spinlock +) +{ + return ( the_spinlock == NULL ); +} + +#endif +/* end of include file */ |