/* * 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) 1989-2008. * 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. * * $Id$ */ #if HAVE_CONFIG_H #include "config.h" #endif #include #include #include #include #include #include #include #include #include #include #include #include #include #include #if defined(RTEMS_MULTIPROCESSING) #include #endif #include #include /*PAGE * * _Semaphore_Manager_initialization * * This routine initializes all semaphore manager related data structures. * * Input parameters: NONE * * Output parameters: NONE */ void _Semaphore_Manager_initialization(void) { _Objects_Initialize_information( &_Semaphore_Information, /* object information table */ OBJECTS_CLASSIC_API, /* object API */ OBJECTS_RTEMS_SEMAPHORES, /* object class */ Configuration_RTEMS_API.maximum_semaphores, /* maximum objects of this class */ sizeof( Semaphore_Control ), /* size of this object's control block */ false, /* true if the name is a string */ RTEMS_MAXIMUM_NAME_LENGTH /* maximum length of an object name */ #if defined(RTEMS_MULTIPROCESSING) , true, /* true if this is a global object class */ _Semaphore_MP_Send_extract_proxy /* Proxy extraction support callout */ #endif ); /* * Register the MP Process Packet routine. */ #if defined(RTEMS_MULTIPROCESSING) _MPCI_Register_packet_processor( MP_PACKET_SEMAPHORE, _Semaphore_MP_Process_packet ); #endif }