Ns_PdDbCancel

Overview

Cancel the current database operation.

Syntax

    void  Ns_PdDbCancel(void *handle);

Description

This function cancels the current database operation. If the cancel operation was successful, this function should call Ns_PdSendString with OK_STATUS. On failure, the function should use Ns_PdSendString to return an error string.

Psuedo-code Example

    /* Things italicized would be your DBMS-specific structures and 
calls. */
    void
    Ns_PdDbCancel(void *handle)
    {
        DBMSState       *state = (DBMSState *) handle;
        Ns_PdLog(Trace, "cancel:");
        if (DBMSCancel(state) == NS_ERROR) {
            Ns_PdSendException(state->exceptionCode, 
    state->exceptionMsg);
        } else {
            Ns_PdSendString(OK_STATUS);
        }
    }