Receive Data (QNMRCVDT) API


  Required Parameter Group:

1 Handle Input Binary(4)
2 Receiver variable Output CHAR(*)
3 Length of receiver variable Input Binary(4)
4 Request identifier Input CHAR(53)
5 Remote application name Output CHAR(24)
6 Data type Output CHAR(10)
7 Wait time Input Binary(4)
8 Error code I/O CHAR(*)

  Default Public Authority: *USE

  Threadsafe: No

The Receive Data (QNMRCVDT) API, an SNA/Management Services Transport API, receives a particular request, reply, or error message.

The receiver variable data area is not changed unless it is large enough to hold all of the data received. If the receiver variable is not large enough to hold the received data, then an error message is returned indicating how much more space is needed. The application can allocate a new buffer size greater than or equal to the bytes available and call the Receive Data (QNMRCVDT) API again. If the received data is smaller than the receiver variable, any data in the unused portion of the variable is unchanged.


Authorities and Locks

None.


Required Parameter Group

Handle
INPUT; BINARY(4)

The unique identifier for this application, which was returned by the Start Application (QNMSTRAP) API.

Receiver variable
OUTPUT; CHAR(*)

The variable in which this API returns the data. This structure includes the bytes returned and bytes available in addition to the received data.

The format of the receiver variable is:

Offset Type Field
0 BINARY(4) Bytes returned
4 BINARY(4) Bytes available
8 CHAR(*) Received data

The bytes returned field specifies the length of the bytes actually returned. The bytes available field specifies the total length of data available to be returned.

Length of receiver variable
INPUT; BINARY(4)

The size of the receiver variable parameter, which is the maximum amount of data that can be returned in the receiver variable.

Request identifier
INPUT; CHAR(53)

The request identifier of the data being received.

*PRV The last request identifier used (for example, the one returned on the Send Request (QNMSNDRQ) API).

Remote application name
OUTPUT; CHAR(24)

The name of the remote application that sent the data. The first 8 characters contain the network ID, the second 8 characters contain the control point name (or the logical unit name may be used), and the third 8 characters contain the application name of the remote application.

Data type
OUTPUT; CHAR(10)

The type of data returned.

*RQS A request was received. No reply is expected.
*RQSRPY A request was received. A reply is expected.
*RPYCPL A complete reply was received. This is either the last or only reply.
*RPYINCPL An incomplete reply was received. Additional Receive Data (QNMRCVDT) operations should be performed.
*NODATA No data was received. Either an error occurred or the wait time elapsed.

Wait time
INPUT; BINARY(4)

The amount of time the application waits for the data to be received.

-1 Waits for data to be received (no matter how long it takes) or for a condition such that the reply cannot be received (for example, a communications failure).
0-99999 The number of seconds the application waits.

Error code
I/O; CHAR(*)

The structure in which to return error information. For the format of the structure, see Error Code Parameter.


Error Messages

Message ID Error Message Text
CPF24B4 E Severe error while addressing parameter list.
CPF3C24 E Length of the receiver variable is not valid.
CPF3C90 E Literal value cannot be changed.
CPF3CF1 E Error code parameter not valid.
CPF7AC0 E &3.&4 cannot receive data at this time.
CPF7AC4 E Control point &3.&4 rejected data.
CPF7ADC E Internal processing error.
CPF7ADD E Operation did not complete.
CPF7ADF E Session failure. Cannot send data at this time.
CPF7AEA E Application on control point &3.&4 failed.
CPF7AEC E Wait time &3 not between -1 and 99999.
CPF7AE0 E Function requested not supported by remote system.
CPF7AE2 E Handle &1 not found.
CPF7AE3 E Management Services transport operation not permitted.
CPF7AE6 E Communication with control point &3.&4 failed.
CPF7AE7 E Remote application program &5 not found.
CPF7AE8 E Receiver variable too small.
CPF7AE9 E Request identifier not valid.
CPF9872 E Program or service program &1 in library &2 ended. Reason code &3.


API introduced: V2R2
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