RSC/MP 7.2 Programming Manual

API Functions and Options

HP NonStop Remote Server Call (RSC/MP) Programming Manual—522360-004

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Example: Nowaited I/O

This example shows how to use nowaited API function calls:

CHAR acServerName;

USHORT uReturn;

USHORT uReplySize

USHORT uRequestSize;

SHORT nIoHandle = 1;

...

strcpy (acServerName, "EMPLOYEE-SERVER");

uReturn = RscWriteRead (RSC_DEFAULT_OPTIONS,

ulConnectionHandle,

ulSessionHandle,

acServerName,

nIoHandle,/*nowaited I/O*/

&sSendMessage,

uRequestSize,

NULL,

NULL);

uReplySize = sizeof (sReplyMessage);

while (TRUE){

uReturn = RscIoCheck (ulConnectionHandle,

ulSessionHandle,

&nIoHandle,/*nowaited I/O*/

&sReplyMessage,

&uReplySize);

if (uReturn != RSC_IO_PENDING)

break; /*I/O has completed - get out of the while loop*/

}

Checking and Replying to Unsolicited

Messages

The RscUmsCheck function checks for unsolicited messages received during the

session and retrieves the messages if there are any. Use the RscUmsReply function to

reply to an unsolicited message that was initiated by the Guardian WRITEREAD

procedure. See Section 8, Unsolicited Message Service for more information about the

UMS.