In mainline code, an application retrieves a transaction state by calling ct_res_info with type as CS_TRANS_STATE:
CS_RETCODE ret;
CS_INT outlen;
CS_INT trans_state;
ret = ct_res_info (cmd, CS_TRANS_STATE,
&trans_state, CS_UNUSED, &outlen)
ct_res_info sets trans_state to one of the symbolic values listed in Table 2-21.
Transaction state information is available only for CS_COMMAND structures with pending results or an open cursor. That is, transaction state information is available if an application’s last call to ct_results returned CS_SUCCEED.
Transaction state information is guaranteed to be correct only after ct_results sets *result_type to CS_CMD_DONE, CS_CMD_SUCCEED, or CS_CMD_FAIL.
