Hi C gurus,
The code example (attached) now works on I64, when it includes a printf statement immediately before the sys$qiow call.
Code snippet ...
for (;;) {
printf ("%s\n", ""); /* makes it work on I64, VMS V8.3, HP C V7.2-001-50G14 */
status = sys$qiow (0, mbx_chan, IO$_READVBLK|IO$M_NOW, &iosb, 0, 0,
&reply, OPC_BUFSIZ, 0, 0, 0, 0);
printf ("%s %i\n", "..status ",status);
printf ("%s %i\n", "..iosb ",iosb[0]);
Without this printf, sys$qiow immediately returns %SYSTEM-W-ENDOFFILE, end of file ...
$ run OPCOM_STATUS
..status 1
..iosb 2160
$
With this printf, it works as expected ...
$ run OPCOM_STATUS
..status 1
..iosb 1
%%%%%%%%%%% OPCOM 4-JUL-2007 17:10:59.89 %%%%%%%%%%%
Operator _AUC051$FTA95: has been enabled, username SYSTEM
..status 1
..iosb 1
%%%%%%%%%%% OPCOM 4-JUL-2007 17:10:59.89 %%%%%%%%%%%
Operator status for operator _AUC051$FTA95:
CENTRAL, PRINTER, TAPES, DISKS, DEVICES, CARDS, NETWORK, CLUSTER, SECURITY
..status 1
..iosb 1
%%%%%%%%%%% OPCOM 4-JUL-2007 17:10:59.89 %%%%%%%%%%%
Operator status for operator _AUC051$FTA95:
CENTRAL, PRINTER, TAPES, DISKS, DEVICES, CARDS, NETWORK, CLUSTER, SECURITY
..status 1
..iosb 2160
$
Not being a C programmer, I can't see what difference it should make. But, no doubt there is an explanation.
Platform: I64, VMS V8.3, HP C V7.2-001-50G14
Regards,
Lester
