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/*
* Semaphore Manager
*
* DESCRIPTION:
*
* This package is the implementation of the Semaphore Manager.
* This manager utilizes standard Dijkstra counting semaphores to provide
* synchronization and mutual exclusion capabilities.
*
* Directives provided are:
*
* + create a semaphore
* + get an ID of a semaphore
* + delete a semaphore
* + acquire a semaphore
* + release a semaphore
*
* COPYRIGHT (c) 1989-1998.
* On-Line Applications Research Corporation (OAR).
* Copyright assigned to U.S. Government, 1994.
*
* The license and distribution terms for this file may be
* found in the file LICENSE in this distribution or at
* http://www.OARcorp.com/rtems/license.html.
*
* $Id$
*/
#include <rtems/system.h>
#include <rtems/rtems/status.h>
#include <rtems/rtems/support.h>
#include <rtems/rtems/attr.h>
#include <rtems/score/isr.h>
#include <rtems/score/object.h>
#include <rtems/rtems/options.h>
#include <rtems/rtems/sem.h>
#include <rtems/score/coremutex.h>
#include <rtems/score/coresem.h>
#include <rtems/score/states.h>
#include <rtems/score/thread.h>
#include <rtems/score/threadq.h>
#if defined(RTEMS_MULTIPROCESSING)
#include <rtems/score/mpci.h>
#endif
#include <rtems/score/sysstate.h>
#include <rtems/score/interr.h>
/*PAGE
*
* _Semaphore_Manager_initialization
*
* This routine initializes all semaphore manager related data structures.
*
* Input parameters:
* maximum_semaphores - maximum configured semaphores
*
* Output parameters: NONE
*/
void _Semaphore_Manager_initialization(
unsigned32 maximum_semaphores
)
{
_Objects_Initialize_information(
&_Semaphore_Information,
OBJECTS_RTEMS_SEMAPHORES,
TRUE,
maximum_semaphores,
sizeof( Semaphore_Control ),
FALSE,
RTEMS_MAXIMUM_NAME_LENGTH,
FALSE
);
/*
* Register the MP Process Packet routine.
*/
#if defined(RTEMS_MULTIPROCESSING)
_MPCI_Register_packet_processor(
MP_PACKET_SEMAPHORE,
_Semaphore_MP_Process_packet
);
#endif
}
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