CSL SCI requests

SCI requests can be issued by an IMSplex member. Any member can also receive messages from any other IMSplex member after a connection is established.

CSLSCBFR: buffer return request
The CSLSCBFR request releases the storage that the Structured Call Interface (SCI) allocated for an IMSplex member. This storage is allocated to receive either an input message sent from another IMSplex member with the CSLSCMSG request, or an output parameter generated from a CSLSCRQS request.
CSLSCDRG: deregistration request
By issuing the CSLSCDRD request, you can terminate the connection between the IMSplex member and SCI. After successful completion of this request, the SCI token is no longer valid.
CSLSCMSG: send message request
By issuing the CSLSCMSG request, you can send a message to one or more other IMSplex members. The target members are specified by SCITOKEN, member name, or member type.
CSLSCQRY: query request
By issuing the CSLSCQRY request, an IMSplex member can obtain information about the members of the IMSplex.
CSLSCQSC: quiesce request
The SCI Quiesce request tells SCI to stop routing messages and requests that have been routed by TYPE to the issuing IMSplex member. After this request has successfully completed, the only messages and requests that are routed to the member are those that are routed directly by SCITOKEN or by NAME.
CSLSCRDY: ready request
The SCI ready request enables the IMSplex member to receive messages and requests that are routed by TYPE. After the CSLSCREG request is issued and until CSLSCRDY is issued, the IMSplex member can only receive requests that are routed directly to a single target address space. The IMSplex member can send messages and requests that are routed by any method.
CSLSCREG: registration request
The Structured Call Interface (SCI) registration request is used to create a connection between an IMSplex member and SCI. Before SCI can be used for communication within the IMSplex, an IMSplex member must issue the CSLSCREG request and receive an SCI token when the request completes in order to be recognized by SCI.
CSLSCRQR request return request
Issuing the CSLSCRQR request returns a request to the IMSplex member from which the request originated. The return request should be issued when the server has completed the request and is ready to return the output from the request.
CSLSCRQS: send request
By issuing the CSLSCRQS request, an IMSplex member can send a request to another member in the IMSplex. The target member can be specified by SCITOKEN, member name, or member type.

Parent topic: Writing a CSL SCI client

Related concepts

CSL OM automated operator program clients