Sends an expedited data message associated with an established connection to the far end point.
DWORD SCCPEDataRqst ( CTAHD ctahd, SccpConnId *connId, SccpDataRqst *dataRqst)
|
Argument |
Description |
|
ctahd |
Natural Access handle returned by ctaCreateContext. |
|
connId |
Pointer to the connection ID. |
|
dataRqst |
Pointer to the caller's data request message structure containing all parameters and user data to be included in the message to the far end point. |
|
Return value |
Description |
|
SCCP_SUCCESS |
|
|
SCCPERR_OVERRUN |
Message generated by this request exceeds the maximum allowed size. |
|
SCCPERR_RESOURCES |
Number of available buffers is exhausted. |
|
CTAERR_BAD_ARGUMENT |
One or more arguments are invalid. |
|
CTAERR_DRIVER_SEND_FAILED |
Error occurred accessing the CPI driver. Call SCCPGetStats to obtain the error code. The error code is in the failTxErr field of the SccpStats structure. The CPI error codes are listed in the txcpi.h include file. |
|
CTAERR_INVALID_CTAHD |
Natural Access handle is invalid. |
The maximum length of the data field included in the SccpDataRqst structure is 264 bytes, as per ANSI T1.112 recommendations.
Refer to Transferring connection-oriented data for more information.