/**
* @file
*
* @brief Private Inlined Routines for POSIX Semaphores
*
* This include file contains the static inline implementation of the private
* inlined routines for POSIX Semaphores.
*/
/*
* COPYRIGHT (c) 1989-2013.
* 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_POSIX_SEMAPHOREIMPL_H
#define _RTEMS_POSIX_SEMAPHOREIMPL_H
#include <rtems/posix/semaphore.h>
#include <rtems/posix/posixapi.h>
#include <rtems/score/coresemimpl.h>
#include <rtems/seterr.h>
#ifdef __cplusplus
extern "C" {
#endif
/**
* This defines the information control block used to manage
* this class of objects.
*/
extern Objects_Information _POSIX_Semaphore_Information;
#define POSIX_SEMAPHORE_TQ_OPERATIONS &_Thread_queue_Operations_FIFO
RTEMS_INLINE_ROUTINE POSIX_Semaphore_Control *
_POSIX_Semaphore_Allocate_unprotected( void )
{
return (POSIX_Semaphore_Control *)
_Objects_Allocate_unprotected( &_POSIX_Semaphore_Information );
}
/**
* @brief POSIX Semaphore Free
*
* This routine frees a semaphore control block to the
* inactive chain of free semaphore control blocks.
*/
RTEMS_INLINE_ROUTINE void _POSIX_Semaphore_Free (
POSIX_Semaphore_Control *the_semaphore
)
{
_Objects_Free( &_POSIX_Semaphore_Information, &the_semaphore->Object );
}
RTEMS_INLINE_ROUTINE POSIX_Semaphore_Control *_POSIX_Semaphore_Get(
const sem_t *id,
Thread_queue_Context *queue_context
)
{
_Thread_queue_Context_initialize( queue_context );
return (POSIX_Semaphore_Control *) _Objects_Get(
(Objects_Id) *id,
&queue_context->Lock_context,
&_POSIX_Semaphore_Information
);
}
/**
* @brief POSIX Semaphore Create Support
*
* This routine supports the sem_init and sem_open routines.
*/
int _POSIX_Semaphore_Create_support(
const char *name,
size_t name_len,
int pshared,
unsigned int value,
POSIX_Semaphore_Control **the_sem
);
/**
* @brief POSIX Semaphore Delete
*
* This routine supports the sem_close and sem_unlink routines.
*/
void _POSIX_Semaphore_Delete(
POSIX_Semaphore_Control *the_semaphore,
Thread_queue_Context *queue_context
);
/**
* @brief POSIX semaphore wait support.
*
* This routine supports the sem_wait, sem_trywait, and sem_timedwait
* services.
*/
int _POSIX_Semaphore_Wait_support(
sem_t *sem,
bool blocking,
Watchdog_Interval timeout
);
/**
* @brief POSIX Semaphore Namespace Remove
*/
RTEMS_INLINE_ROUTINE void _POSIX_Semaphore_Namespace_remove (
POSIX_Semaphore_Control *the_semaphore
)
{
_Objects_Namespace_remove(
&_POSIX_Semaphore_Information, &the_semaphore->Object );
}
RTEMS_INLINE_ROUTINE POSIX_Semaphore_Control *_POSIX_Semaphore_Get_by_name(
const char *name,
size_t *name_length_p,
Objects_Get_by_name_error *error
)
{
return (POSIX_Semaphore_Control *) _Objects_Get_by_name(
&_POSIX_Semaphore_Information,
name,
name_length_p,
error
);
}
#ifdef __cplusplus
}
#endif
#endif
/* end of include file */
