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 Copyright (c) 2001 by Sun Microsystems, Inc. All rights reserved.
 The contents of this file are subject to the terms of the Common Development and Distribution License (the "License"). You may not use this file except in compliance with the License.
 You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE or http://www.opensolaris.org/os/licensing. See the License for the specific language governing permissions and limitations under the License.
 When distributing Covered Code, include this CDDL HEADER in each file and include the License file at usr/src/OPENSOLARIS.LICENSE. If applicable, add the following below this CDDL HEADER, with the fields enclosed by brackets "[]" replaced with your own identifying information: Portions Copyright [yyyy] [name of copyright owner]
 RSM_MEMSEG_IMPORT_CONNECT 3RSM "Jun 8, 2001"
 NAME
rsm_memseg_import_connect, rsm_memseg_import_disconnect - create or break
logical commection between import and export segments

 SYNOPSIS


cc [ flag... ] file... -lrsm [ library... ]
#include <rsmapi.h>

int rsm_memseg_import_connect(
 rsmapi_controller_handle_t controller,
 rsm_node_id_t nodeid, rsm_memseg_id_t segment_id,
 rsm_permission_t perm, rsm_memseg_import_handle_t *memseg);






int rsm_memseg_import_disconnect(
 rsm_memseg_import_handle_t memseg);




 DESCRIPTION

The rsm_memseg_import_connect() function provides a means of creating an
import segment called memseg and establishing a logical connection with
an export segment identified by the segment_id on the node specified by
node_id. The controller specified by controller must have a
physical connection with the controller (see
rsm_get_interconnect_topology(3RSM)) used while exporting the segment
identified by segment_id on node specified by node_id. The
perm argument specifies the mode of access that the importer is
requesting for this connection. In the connection process, the mode of access
and the importers userid and groupid are compared with the access permissions
specified by the exporter. If the request mode is not valid, the connection
request is denied. The perm argument is limited to the following octal
values:
0400


read mode



0200


write mode



0600


read/write mode





The rsm_memseg_import_disconnect() function breaks the logical connection
between the import segment and the exported segment and deallocates the
resources associated with the import segment handle memseg.

 RETURN VALUES

Upon successful completion, these functions return 0. Otherwise, an error value
is returned to indicate the error.

 ERRORS

The rsm_memseg_import_connect() and rsm_memseg_import_disconnect()
functions can return the following errors:
RSMERR_BAD_SEG_HNDL 


Invalid segment handle.





The rsm_memseg_import_connect() function can return the following
errors:
RSMERR_BAD_CTLR_HNDL 


Invalid controller handle.



RSMERR_CTLR_NOT_PRESENT 


Controller not present.



RSMERR_PERM_DENIED 


Permission denied.



RSMERR_INSUFFICIENT_MEM 


Insufficient memory.



RSMERR_INSUFFICIENT_RESOURCES 


Insufficient resources.



RSMERR_SEG_NOT_PUBLISHED_TO_NODE 


Segment not published to node.



RSMERR_SEG_NOT_PUBLISHED 


Segment not published at all.



RSMERR_BAD_ADDR 


Bad address.



RSMERR_REMOTE_NODE_UNREACHABLE 


Remote not not reachable.



RSMERR_INTERRUPTED 


Connection interrupted.





The rsm_memseg_import_disconnect() function can return the following
errors:
RSMERR_SEG_STILL_MAPPED 


Segment still mapped, need to unmap before disconnect.



RSMERR_POLLFD_IN_USE 


Poll file descriptor in use.




 ATTRIBUTES

See attributes(5) for descriptions of the following attributes:






ATTRIBUTE TYPE ATTRIBUTE VALUE
Interface Stability Evolving
MT-Level MT-Safe



 SEE ALSO

rsm_memseg_import_map(3RSM), attributes(5)