Object Handler Multiprocessing Support. More...

Files
file	objectmp.h
	Data Associated with the Manipulation of Global RTEMS Objects.

file	objectmp.c
	Objects MP Support.

Functions
void	_Objects_MP_Handler_initialization (void)
	Intializes the inactive global object chain based on the maximum number of global objects configured. More...

void	_Objects_MP_Handler_early_initialization (void)
	Intializes the global object node number used in the ID field of all objects. More...

void	_Objects_MP_Open (Objects_Information information, Objects_MP_Control the_global_object, uint32_t the_name, Objects_Id the_id)
	Place the specified global object in the specified information table. More...

bool	_Objects_MP_Allocate_and_open (Objects_Information *information, uint32_t the_name, Objects_Id the_id, bool is_fatal_error)
	Allocates a global object control block and places it in the specified information table. More...

void	_Objects_MP_Close (Objects_Information *information, Objects_Id the_id)
	Removes a global object from the specified information table. More...

Objects_Name_or_id_lookup_errors	_Objects_MP_Global_name_search (Objects_Information information, Objects_Name the_name, uint32_t nodes_to_search, Objects_Id the_id)
	Looks for the object with the_name in the global object tables indicated by information. More...

bool	_Objects_MP_Is_remote (Objects_Id id, const Objects_Information *information)
	Checks if the object identifier is in the global object identifier cache of the specified object information. More...

Objects_MP_Control *	_Objects_MP_Allocate_global_object (void)
	This function allocates a Global Object control block.

void	_Objects_MP_Free_global_object (Objects_MP_Control *the_object)
	This routine deallocates a Global Object control block. More...

RTEMS_INLINE_ROUTINE bool	_Objects_MP_Is_null_global_object (Objects_MP_Control *the_object)
	Checks if the global object is NULL or not. More...

Variables
uint32_t	_Objects_MP_Maximum_global_objects

Detailed Description

Object Handler Multiprocessing Support.

This handler encapsulates functionality which is used to manage objects which have been declared to be globally visible. This handler knows objects from all of the nodes in the system.

Function Documentation

◆ _Objects_MP_Allocate_and_open()

bool _Objects_MP_Allocate_and_open	(	Objects_Information *	information,
		uint32_t	the_name,
		Objects_Id	the_id,
		bool	is_fatal_error
	)

Allocates a global object control block and places it in the specified information table.

This routine allocates a global object control block and places it in the specified information table. If the allocation fails, then is_fatal_error determines the error processing actions taken.

Parameters

[in,out]	information	Points to the object information table for this object class.
	the_name	The name of the object being opened.
	the_id	The Id of the object being opened.
	is_fatal_error	Indicates whether not being able to allocate the object is considered a fatal error.

Return values

true	The operation succeeded.
false	The allocation failed, but is_fatal_error was set to false.

Todo:: This method only works for object types with 4 byte object names. It does not support variable length object names.

◆ _Objects_MP_Close()

void _Objects_MP_Close	(	Objects_Information *	information,
		Objects_Id	the_id
	)

Removes a global object from the specified information table.

This routine removes a global object from the specified information table and deallocates the global object control block.

Parameters

[in,out]	information	Points to the object information table for this object class.
	the_id	The id of the global object to remove.

◆ _Objects_MP_Free_global_object()

void _Objects_MP_Free_global_object ( Objects_MP_Control * the_object )

This routine deallocates a Global Object control block.

Parameters

[out] the_object The object to deallocate.

◆ _Objects_MP_Global_name_search()

Objects_Name_or_id_lookup_errors _Objects_MP_Global_name_search	(	Objects_Information *	information,
		Objects_Name	the_name,
		uint32_t	nodes_to_search,
		Objects_Id *	the_id
	)

Looks for the object with the_name in the global object tables indicated by information.

This routine looks for the object with the_name in the global object tables indicated by information. It returns the ID of the object with that name if one is found.

Parameters

	information	Points to the object information table for this object class.
	the_name	The name of the object being searched for.
	nodes_to_search	Indicates the set of nodes to search.
[out]	the_id	will contain the Id of the object if found.

Return values

OBJECTS_NAME_OR_ID_LOOKUP_SUCCESSFUL	The lookup was successful.
OBJECTS_INVALID_NODE	The number of nodes is bigger than the objects maximum nodes value.
OBJECTS_INVALID_NAME	There is no global object with this name.

◆ _Objects_MP_Handler_early_initialization()

void _Objects_MP_Handler_early_initialization ( void )

Intializes the global object node number used in the ID field of all objects.

This routine intializes the global object node number used in the ID field of all objects.

◆ _Objects_MP_Handler_initialization()

void _Objects_MP_Handler_initialization ( void )

Intializes the inactive global object chain based on the maximum number of global objects configured.

This routine intializes the inactive global object chain based on the maximum number of global objects configured.

◆ _Objects_MP_Is_null_global_object()

RTEMS_INLINE_ROUTINE bool _Objects_MP_Is_null_global_object ( Objects_MP_Control * the_object )

Checks if the global object is NULL or not.

Parameters

the_object The object to check if it is NULL.

Return values

true	the_object is NULL.
false	the_object is not NULL.

◆ _Objects_MP_Is_remote()

bool _Objects_MP_Is_remote	(	Objects_Id	id,
		const Objects_Information *	information
	)

Checks if the object identifier is in the global object identifier cache of the specified object information.

Parameters

id	The object identifier.
information	The object information.

Return values

true	A remote objects with this object identifier exists in the global object identifier cache of the specified information.
false	A remote objects with this object identifier does not exist in the global object identifier cache of the specified information.

◆ _Objects_MP_Open()

void _Objects_MP_Open	(	Objects_Information *	information,
		Objects_MP_Control *	the_global_object,
		uint32_t	the_name,
		Objects_Id	the_id
	)

Place the specified global object in the specified information table.

This routine place the specified global object in the specified information table.

Parameters

[in,out]	information	Points to the object information table for this object class.
[in,out]	the_global_object	Points to the object being opened.
	the_name	The name of the object being opened.
	the_id	The Id of the object being opened.

Todo:: This method only works for object types with 4 byte object names. It does not support variable length object names.

Variable Documentation

◆ _Objects_MP_Maximum_global_objects

uint32_t _Objects_MP_Maximum_global_objects

This is the maximum number of global objects configured.

Files

Functions

Variables

Detailed Description

Function Documentation

◆ _Objects_MP_Allocate_and_open()

◆ _Objects_MP_Close()

◆ _Objects_MP_Free_global_object()

◆ _Objects_MP_Global_name_search()

◆ _Objects_MP_Handler_early_initialization()

◆ _Objects_MP_Handler_initialization()

◆ _Objects_MP_Is_null_global_object()

◆ _Objects_MP_Is_remote()

◆ _Objects_MP_Open()

Variable Documentation

◆ _Objects_MP_Maximum_global_objects