static void qmgr_scan_start(QMGR_SCAN *scan_info)
{
char *myname = "qmgr_scan_start";
/*
* Sanity check.
*/
if (scan_info->handle)
msg_panic("%s: %s queue scan in progress",
myname, scan_info->queue);
/*
* Give the poor tester a clue.
*/
if (msg_verbose)
msg_info("%s: %sstart %s queue scan",
myname,
scan_info->nflags & QMGR_SCAN_START ? "re" : "",
scan_info->queue);
/*
* Optionally forget all dead host information.
*/
if (scan_info->nflags & QMGR_FLUSH_DEAD)
qmgr_enable_all();
/*
* Start or restart the scan.
*/
scan_info->flags = scan_info->nflags;
scan_info->nflags = 0;
scan_info->handle = scan_dir_open(scan_info->queue);
}
void qmgr_scan_request(QMGR_SCAN *scan_info, int flags)
{
/*
* Apply "forget all dead destinations" requests immediately. Throttle
* dead transports and queues at the earliest opportunity: preferably
* during an already ongoing queue scan, otherwise the throttling will
* have to wait until a "start scan" trigger arrives.
*
* The QMGR_FLUSH_ONCE request always comes with QMGR_FLUSH_DFXP, and
* sometimes it also comes with QMGR_SCAN_ALL. It becomes a completely
* different story when a flush request is encoded in file permissions.
*/
if (flags & QMGR_FLUSH_ONCE)
qmgr_enable_all();
/*
* Apply "ignore time stamp" requests also towards the scan that is
* already in progress.
*/
if (scan_info->handle != 0 && (flags & QMGR_SCAN_ALL))
scan_info->flags |= QMGR_SCAN_ALL;
/*
* Apply "override defer_transports" requests also towards the scan that
* is already in progress.
*/
if (scan_info->handle != 0 && (flags & QMGR_FLUSH_DFXP))
scan_info->flags |= QMGR_FLUSH_DFXP;
/*
* If a scan is in progress, just record the request.
*/
scan_info->nflags |= flags;
if (scan_info->handle == 0 && (flags & QMGR_SCAN_START) != 0) {
scan_info->nflags &= ~QMGR_SCAN_START;
qmgr_scan_start(scan_info);
}
}
