NetBSD/gnu/dist/postfix/qmgr/qmgr_enable.c

108 lines
2.6 KiB
C

/*++
/* NAME
/* qmgr_enable
/* SUMMARY
/* enable dead transports or sites
/* SYNOPSIS
/* #include "qmgr.h"
/*
/* void qmgr_enable_queue(queue)
/* QMGR_QUEUE *queue;
/*
/* QMGR_QUEUE *qmgr_enable_transport(transport)
/* QMGR_TRANSPORT *transport;
/*
/* void qmgr_enable_all(void)
/* DESCRIPTION
/* This module purges dead in-core state information, effectively
/* re-enabling delivery.
/*
/* qmgr_enable_queue() enables deliveries to the named dead site.
/* Empty queues are destroyed. The existed solely to indicate that
/* a site is dead.
/*
/* qmgr_enable_transport() enables deliveries via the specified
/* transport, and calls qmgr_enable_queue() for each destination
/* on that transport. Empty queues are destroyed.
/*
/* qmgr_enable_all() enables all transports and queues.
/* See above for the side effects caused by doing this.
/* BUGS
/* The side effects of calling this module can be quite dramatic.
/* DIAGNOSTICS
/* Panic: consistency check failure. Fatal: out of memory.
/* LICENSE
/* .ad
/* .fi
/* The Secure Mailer license must be distributed with this software.
/* AUTHOR(S)
/* Wietse Venema
/* IBM T.J. Watson Research
/* P.O. Box 704
/* Yorktown Heights, NY 10598, USA
/*--*/
/* System library. */
#include <sys_defs.h>
/* Utility library. */
#include <msg.h>
#include <vstream.h>
/* Application-specific. */
#include "qmgr.h"
/* qmgr_enable_all - enable transports and queues */
void qmgr_enable_all(void)
{
QMGR_TRANSPORT *xport;
if (msg_verbose)
msg_info("qmgr_enable_all");
/*
* The number of transports does not change as a side effect, so this can
* be a straightforward loop.
*/
for (xport = qmgr_transport_list.next; xport; xport = xport->peers.next)
qmgr_enable_transport(xport);
}
/* qmgr_enable_transport - defer todo entries for named transport */
void qmgr_enable_transport(QMGR_TRANSPORT *transport)
{
QMGR_QUEUE *queue;
QMGR_QUEUE *next;
/*
* Proceed carefully. Queues may disappear as a side effect.
*/
if (transport->flags & QMGR_TRANSPORT_STAT_DEAD) {
if (msg_verbose)
msg_info("enable transport %s", transport->name);
qmgr_transport_unthrottle(transport);
}
for (queue = transport->queue_list.next; queue; queue = next) {
next = queue->peers.next;
qmgr_enable_queue(queue);
}
}
/* qmgr_enable_queue - enable and possibly delete queue */
void qmgr_enable_queue(QMGR_QUEUE *queue)
{
if (queue->window == 0) {
if (msg_verbose)
msg_info("enable site %s/%s", queue->transport->name, queue->name);
qmgr_queue_unthrottle(queue);
}
if (queue->todo.next == 0 && queue->busy.next == 0)
qmgr_queue_done(queue);
}