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Diffstat (limited to 'cpukit/rtems/src/part.c')
| -rw-r--r-- | cpukit/rtems/src/part.c | 341 |
1 files changed, 0 insertions, 341 deletions
diff --git a/cpukit/rtems/src/part.c b/cpukit/rtems/src/part.c deleted file mode 100644 index f63ab693f1..0000000000 --- a/cpukit/rtems/src/part.c +++ /dev/null @@ -1,341 +0,0 @@ -/* - * Partition Manager - * - * - * COPYRIGHT (c) 1989, 1990, 1991, 1992, 1993, 1994. - * On-Line Applications Research Corporation (OAR). - * All rights assigned to U.S. Government, 1994. - * - * This material may be reproduced by or for the U.S. Government pursuant - * to the copyright license under the clause at DFARS 252.227-7013. This - * notice must appear in all copies of this file and its derivatives. - * - * $Id$ - */ - -#include <rtems/system.h> -#include <rtems/rtems/status.h> -#include <rtems/rtems/support.h> -#include <rtems/score/address.h> -#include <rtems/score/object.h> -#include <rtems/rtems/part.h> -#include <rtems/score/thread.h> -#include <rtems/score/sysstate.h> - -/*PAGE - * - * _Partition_Manager_initialization - * - * This routine initializes all partition manager related - * data structures. - * - * Input parameters: - * maximum_partitions - number of partitions to initialize - * - * Output parameters: NONE - */ - -void _Partition_Manager_initialization( - unsigned32 maximum_partitions -) -{ - _Objects_Initialize_information( - &_Partition_Information, - OBJECTS_RTEMS_PARTITIONS, - TRUE, - maximum_partitions, - sizeof( Partition_Control ), - FALSE, - RTEMS_MAXIMUM_NAME_LENGTH, - FALSE - ); - - /* - * Register the MP Process Packet routine. - */ - - _MPCI_Register_packet_processor( - MP_PACKET_PARTITION, - _Partition_MP_Process_packet - ); - -} - -/*PAGE - * - * rtems_partition_create - * - * This directive creates a partiton of fixed sized buffers from the - * given contiguous memory area. - * - * Input parameters: - * name - user defined partition name - * starting_address - physical start address of partition - * length - physical length in bytes - * buffer_size - size of buffers in bytes - * attribute_set - partition attributes - * id - pointer to partition id - * - * Output parameters: - * id - partition id - * RTEMS_SUCCESSFUL - if successful - * error code - if unsuccessful - */ - -rtems_status_code rtems_partition_create( - rtems_name name, - void *starting_address, - unsigned32 length, - unsigned32 buffer_size, - rtems_attribute attribute_set, - Objects_Id *id -) -{ - register Partition_Control *the_partition; - - if ( !rtems_is_name_valid( name ) ) - return RTEMS_INVALID_NAME; - - if ( length == 0 || buffer_size == 0 || length < buffer_size || - !_Partition_Is_buffer_size_aligned( buffer_size ) ) - return RTEMS_INVALID_SIZE; - - if ( !_Addresses_Is_aligned( starting_address ) ) - return RTEMS_INVALID_ADDRESS; - - if ( _Attributes_Is_global( attribute_set ) && - !_System_state_Is_multiprocessing ) - return RTEMS_MP_NOT_CONFIGURED; - - _Thread_Disable_dispatch(); /* prevents deletion */ - - the_partition = _Partition_Allocate(); - - if ( !the_partition ) { - _Thread_Enable_dispatch(); - return RTEMS_TOO_MANY; - } - - if ( _Attributes_Is_global( attribute_set ) && - !( _Objects_MP_Allocate_and_open( &_Partition_Information, name, - the_partition->Object.id, FALSE ) ) ) { - _Partition_Free( the_partition ); - _Thread_Enable_dispatch(); - return RTEMS_TOO_MANY; - } - the_partition->starting_address = starting_address; - the_partition->length = length; - the_partition->buffer_size = buffer_size; - the_partition->attribute_set = attribute_set; - the_partition->number_of_used_blocks = 0; - - _Chain_Initialize( &the_partition->Memory, starting_address, - length / buffer_size, buffer_size ); - - _Objects_Open( &_Partition_Information, &the_partition->Object, &name ); - - *id = the_partition->Object.id; - if ( _Attributes_Is_global( attribute_set ) ) - _Partition_MP_Send_process_packet( - PARTITION_MP_ANNOUNCE_CREATE, - the_partition->Object.id, - name, - 0 /* Not used */ - ); - - _Thread_Enable_dispatch(); - return RTEMS_SUCCESSFUL; -} - -/*PAGE - * - * rtems_partition_ident - * - * This directive returns the system ID associated with - * the partition name. - * - * Input parameters: - * name - user defined partition name - * node - node(s) to be searched - * id - pointer to partition id - * - * Output parameters: - * *id - partition id - * RTEMS_SUCCESSFUL - if successful - * error code - if unsuccessful - */ - -rtems_status_code rtems_partition_ident( - rtems_name name, - unsigned32 node, - Objects_Id *id -) -{ - Objects_Name_to_id_errors status; - - status = _Objects_Name_to_id( &_Partition_Information, &name, node, id ); - - return _Status_Object_name_errors_to_status[ status ]; -} - -/*PAGE - * - * rtems_partition_delete - * - * This directive allows a thread to delete a partition specified by - * the partition identifier, provided that none of its buffers are - * still allocated. - * - * Input parameters: - * id - partition id - * - * Output parameters: - * RTEMS_SUCCESSFUL - if successful - * error code - if unsuccessful - */ - -rtems_status_code rtems_partition_delete( - Objects_Id id -) -{ - register Partition_Control *the_partition; - Objects_Locations location; - - the_partition = _Partition_Get( id, &location ); - switch ( location ) { - case OBJECTS_ERROR: - return RTEMS_INVALID_ID; - case OBJECTS_REMOTE: - _Thread_Dispatch(); - return RTEMS_ILLEGAL_ON_REMOTE_OBJECT; - case OBJECTS_LOCAL: - if ( the_partition->number_of_used_blocks == 0 ) { - _Objects_Close( &_Partition_Information, &the_partition->Object ); - _Partition_Free( the_partition ); - if ( _Attributes_Is_global( the_partition->attribute_set ) ) { - - _Objects_MP_Close( - &_Partition_Information, - the_partition->Object.id - ); - - _Partition_MP_Send_process_packet( - PARTITION_MP_ANNOUNCE_DELETE, - the_partition->Object.id, - 0, /* Not used */ - 0 /* Not used */ - ); - } - - _Thread_Enable_dispatch(); - return RTEMS_SUCCESSFUL; - } - _Thread_Enable_dispatch(); - return RTEMS_RESOURCE_IN_USE; - } - - return RTEMS_INTERNAL_ERROR; /* unreached - only to remove warnings */ -} - -/*PAGE - * - * rtems_partition_get_buffer - * - * This directive will obtain a buffer from a buffer partition. - * - * Input parameters: - * id - partition id - * buffer - pointer to buffer address - * - * Output parameters: - * buffer - pointer to buffer address filled in - * RTEMS_SUCCESSFUL - if successful - * error code - if unsuccessful - */ - -rtems_status_code rtems_partition_get_buffer( - Objects_Id id, - void **buffer -) -{ - register Partition_Control *the_partition; - Objects_Locations location; - void *the_buffer; - - the_partition = _Partition_Get( id, &location ); - switch ( location ) { - case OBJECTS_ERROR: - return RTEMS_INVALID_ID; - case OBJECTS_REMOTE: - _Thread_Executing->Wait.return_argument = buffer; - return( - _Partition_MP_Send_request_packet( - PARTITION_MP_GET_BUFFER_REQUEST, - id, - 0 /* Not used */ - ) - ); - case OBJECTS_LOCAL: - the_buffer = _Partition_Allocate_buffer( the_partition ); - if ( the_buffer ) { - the_partition->number_of_used_blocks += 1; - _Thread_Enable_dispatch(); - *buffer = the_buffer; - return RTEMS_SUCCESSFUL; - } - _Thread_Enable_dispatch(); - return RTEMS_UNSATISFIED; - } - - return RTEMS_INTERNAL_ERROR; /* unreached - only to remove warnings */ -} - -/*PAGE - * - * rtems_partition_return_buffer - * - * This directive will return the given buffer to the specified - * buffer partition. - * - * Input parameters: - * id - partition id - * buffer - pointer to buffer address - * - * Output parameters: - * RTEMS_SUCCESSFUL - if successful - * error code - if unsuccessful - */ - -rtems_status_code rtems_partition_return_buffer( - Objects_Id id, - void *buffer -) -{ - register Partition_Control *the_partition; - Objects_Locations location; - - the_partition = _Partition_Get( id, &location ); - switch ( location ) { - case OBJECTS_ERROR: - return RTEMS_INVALID_ID; - case OBJECTS_REMOTE: - return( - _Partition_MP_Send_request_packet( - PARTITION_MP_RETURN_BUFFER_REQUEST, - id, - buffer - ) - ); - case OBJECTS_LOCAL: - if ( _Partition_Is_buffer_valid( buffer, the_partition ) ) { - _Partition_Free_buffer( the_partition, buffer ); - the_partition->number_of_used_blocks -= 1; - _Thread_Enable_dispatch(); - return RTEMS_SUCCESSFUL; - } - _Thread_Enable_dispatch(); - return RTEMS_INVALID_ADDRESS; - } - - return RTEMS_INTERNAL_ERROR; /* unreached - only to remove warnings */ -} |