Remote Shared Memory Library Functions
rsm_get_interconnect_topology(3RSM)
NAME
rsm_get_interconnect_topology,
rsm_free_interconnect_topology - get or free interconnect
topologySYNOPSIS
cc [ flag... ] file... -lrsm [ library... ]
#include
int rsm_get_interconnect_topology(rsm_topology_t **topology_data);
void rsm_free_interconnect_topology(rsm_topology_t *topology_data);
DESCRIPTION
The rsm_get_interconnect_topology(3RSM) and
rsm_free_interconnect_topology(3RSM) functions provide for
access to the interconnect controller and connection data. The key interconnect data required for export and import operations includes the respective cluster nodeids and thecontroller names. To facilitate applications in the estab-
lishment of proper and efficient export and import policies, a delineation of the interconnect topology is provided by this interface. The data provided includes local nodeid,local controller name, its hardware address, and remote con-
nection specification for each local controller. An appli-
cation component exporting memory can thus find the set of existing local controllers and correctly assign controllersfor the creation and publishing of segments. Exported seg-
ments may also be efficiently distributed over the set of controllers consistent with the hardware interconnect and application software. An application component which is to import memory must be informed of the segment id(s) and controller(s) used in the exporting of memory, this needs tobe done using some out-of-band mechanism. The topology data
structures are defined in theheader. The rsm_get_interconnect_topology() returns a pointer to the
topology data in a location specified by the topology_data
argument.The rsm_free_interconnect_topology() frees the resources
allocated by rsm_get_interconnect_topology().
RETURN VALUES
Upon successful completion, rsm_get_interconnect_topology()
returns 0. Otherwise, an error value is returned to indicate the error.SunOS 5.11 Last change: 8 Jun 2001 1
Remote Shared Memory Library Functionsrsm_get_interconnect_topology(3RSM)
ERRORS
The rsm_get_interconnect_topology() function can return the
following errors:RSMERR_BAD_TOPOLOGY_PTR Invalid topology pointer.
RSMERR_INSUFFICIENT_MEM Insufficient memory.
RSMERR_BAD_ADDR Bad address.
ATTRIBUTES
See attributes(5) for descriptions of the following attri-
butes:____________________________________________________________
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
|_____________________________|_____________________________|
| Interface Stability | Committed ||_____________________________|_____________________________|
| MT-Level | MT-Safe |
|_____________________________|_____________________________|
SEE ALSO
attributes(5)SunOS 5.11 Last change: 8 Jun 2001 2
Remote Shared Memory Library Functionsrsm_get_interconnect_topology(3RSM)
SunOS 5.11 Last change: 8 Jun 2001 3