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/**
* @file
*
* @ingroup RTEMSImplClassicSemaphoreMP
*
* @brief This header file provides the implementation interfaces of the
* @ref RTEMSImplClassicSemaphoreMP.
*/
/* 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_RTEMS_SEMMP_H
#define _RTEMS_RTEMS_SEMMP_H
#ifndef _RTEMS_RTEMS_SEMIMPL_H
# error "Never use <rtems/rtems/semmp.h> directly; include <rtems/rtems/semimpl.h> instead."
#endif
#ifdef __cplusplus
extern "C" {
#endif
/**
* @defgroup RTEMSImplClassicSemaphoreMP \
* Semaphore Manager Multiprocessing (MP) Support
*
* @ingroup RTEMSImplClassicSemaphore
*
* @brief This group contains the implementation to support the Semaphore Manager
* in multiprocessing (MP) configurations.
*
* @{
*/
/**
* The following enumerated type defines the list of
* remote semaphore operations.
*/
typedef enum {
SEMAPHORE_MP_ANNOUNCE_CREATE = 0,
SEMAPHORE_MP_ANNOUNCE_DELETE = 1,
SEMAPHORE_MP_EXTRACT_PROXY = 2,
SEMAPHORE_MP_OBTAIN_REQUEST = 3,
SEMAPHORE_MP_OBTAIN_RESPONSE = 4,
SEMAPHORE_MP_RELEASE_REQUEST = 5,
SEMAPHORE_MP_RELEASE_RESPONSE = 6
} Semaphore_MP_Remote_operations;
/**
* The following data structure defines the packet used to perform
* remote semaphore operations.
*/
typedef struct {
rtems_packet_prefix Prefix;
Semaphore_MP_Remote_operations operation;
rtems_name name;
rtems_option option_set;
Objects_Id proxy_id;
} Semaphore_MP_Packet;
RTEMS_INLINE_ROUTINE bool _Semaphore_MP_Is_remote( Objects_Id id )
{
return _Objects_MP_Is_remote( id, &_Semaphore_Information );
}
/**
* @brief Semaphore MP Send Process Packet
*
* This routine performs a remote procedure call so that a
* process operation can be performed on another node.
*/
void _Semaphore_MP_Send_process_packet (
Semaphore_MP_Remote_operations operation,
Objects_Id semaphore_id,
rtems_name name,
Objects_Id proxy_id
);
/**
* @brief Issues a remote rtems_semaphore_obtain() request.
*/
rtems_status_code _Semaphore_MP_Obtain(
rtems_id id,
rtems_option option_set,
rtems_interval timeout
);
/**
* @brief Issues a remote rtems_semaphore_release() request.
*/
rtems_status_code _Semaphore_MP_Release( rtems_id id );
/**
* @brief Semaphore MP Send Object was Deleted
*
* This routine is invoked indirectly by the thread queue
* when a proxy has been removed from the thread queue and
* the remote node must be informed of this.
*/
void _Semaphore_MP_Send_object_was_deleted (
Thread_Control *the_proxy,
Objects_Id mp_id
);
/**
* @brief Semaphore Core Mutex MP Support
*
* This function processes the global actions necessary for remote
* accesses to a global semaphore based on a core mutex. This function
* is called by the core.
*
* @param[in] the_thread the remote thread the semaphore was surrendered to
* @param[in] id is the id of the surrendered semaphore
*/
void _Semaphore_Core_mutex_mp_support (
Thread_Control *the_thread,
Objects_Id id
);
/**
* @brief Semaphore Core MP Support
*
* This function processes the global actions necessary for remote
* accesses to a global semaphore based on a core semaphore. This function
* is called by the core.
*
* @param[in] the_thread the remote thread the semaphore was surrendered to
* @param[in] id is the id of the surrendered semaphore
*/
void _Semaphore_Core_semaphore_mp_support (
Thread_Control *the_thread,
Objects_Id id
);
#ifdef __cplusplus
}
#endif
/**@}*/
#endif
/* end of file */
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