Compaq AAPVNFGTE manual Parameter Memory Allocation, Nonblocking Service Usage, ServiceDescription

Models: AAPVNFGTE

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Table 2–1 (Cont.) Summary of Portable API Client Services

ServiceDescription

acmsdi_complete_pp

Used by nonblocking environments only. Sends a response

 

from a presentation procedure request to the TP Desktop

 

Connector gateway.

acmsdi_dispatch_

Used by nonblocking environments only. Checks for and

message

processes messages from the TP Desktop Connector

 

gateway. If no messages have been received from the

 

gateway, acmsdi_dispatch_message returns immediately.

acmsdi_return_pointer

Used by client programs written in Microsoft Visual Basic

 

to create the workspace array for ACMS_CALL_TASK.

 

Also used in the forced nonblocking environment to obtain

 

reference pointers.

acmsdi_sign_in

Requests the TP Desktop Connector gateway to sign a user

 

running a desktop client program in to a ACMS system.

acmsdi_sign_out

Requests the TP Desktop Connector gateway to sign a

 

desktop client program out of a ACMS system.

 

 

These calls use the C-language argument-passing standards. Character strings are NULL-terminated and passed by reference. Workspaces are passed as structures composed of a length and a pointer field.

2.2 Parameter Memory Allocation

The caller of a TP Desktop Connector client service or a presentation procedure is responsible for allocating the memory for the parameters of that routine. For calls to the TP Desktop Connector client services, the desktop client program must allocate the memory for all parameters passed in, for example, submitter_id and call_context. For calls to the presentation procedures, the TP Desktop Connector client services allocate memory for all the parameters passed and for all workspaces.

2.3 Nonblocking Service Usage

The acmsdi_sign_in, acmsdi_call_task, and acmsdi_sign_out services can be either blocking, nonblocking, or forced nonblocking. If the desktop client program supplies the completion_routine parameter to the TP Desktop Connector client service, the service behaves in the nonblocking fashion. The TP Desktop Connector client service returns control to the desktop client program as soon as a request is sent to the TP Desktop Connector gateway. If the request is sent to the gateway successfully, the TP Desktop Connector

2–2TP Desktop Connector Portable API Client Services

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Compaq AAPVNFGTE Parameter Memory Allocation, Nonblocking Service Usage, Cont. Summary of Portable API Client Services

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