--- /dev/null
+diff -up cups-1.7rc1/scheduler/avahi.c.avahi-no-threaded cups-1.7rc1/scheduler/avahi.c
+--- cups-1.7rc1/scheduler/avahi.c.avahi-no-threaded 2013-07-22 11:47:27.599101572 +0100
++++ cups-1.7rc1/scheduler/avahi.c 2013-07-22 11:47:27.599101572 +0100
+@@ -0,0 +1,441 @@
++/*
++ * "$Id$"
++ *
++ * Avahi poll implementation for the CUPS scheduler.
++ *
++ * Copyright (C) 2010, 2011 Red Hat, Inc.
++ * Authors:
++ * Tim Waugh <twaugh@redhat.com>
++ *
++ * Redistribution and use in source and binary forms, with or without
++ * modification, are permitted provided that the following conditions
++ * are met:
++ *
++ * Redistributions of source code must retain the above copyright
++ * notice, this list of conditions and the following disclaimer.
++ *
++ * Redistributions in binary form must reproduce the above copyright
++ * notice, this list of conditions and the following disclaimer in the
++ * documentation and/or other materials provided with the distribution.
++ *
++ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
++ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
++ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
++ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
++ * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
++ * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
++ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
++ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
++ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
++ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
++ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
++ * OF THE POSSIBILITY OF SUCH DAMAGE.
++ *
++ * Contents:
++ *
++ * watch_read_cb - Read callback for file descriptor
++ * watch_write_cb - Write callback for file descriptor
++ * watched_fd_add_select() - Call cupsdAddSelect() as needed
++ * watch_new() - Create a new file descriptor watch
++ * watch_free() - Free a file descriptor watch
++ * watch_update() - Update watched events for a file descriptor
++ * watch_get_events() - Get events that happened for a file descriptor
++ * timeout_cb() - Run a timed Avahi callback
++ * timeout_new() - Set a wakeup time
++ * timeout_update() - Update the expiration time for a timeout
++ * timeout_free() - Free a timeout
++ * compare_watched_fds() - Compare watched file descriptors for array sorting
++ * avahi_cups_poll_new() - Create a new Avahi main loop object for CUPS
++ * avahi_cups_poll_free() - Free an Avahi main loop object for CUPS
++ * avahi_cups_poll_get() - Get the abstract poll API structure
++ */
++
++#include <config.h>
++
++#ifdef HAVE_AVAHI /* Applies to entire file... */
++
++/*
++ * Include necessary headers...
++ */
++
++#include "cupsd.h"
++
++#if defined(HAVE_MALLOC_H) && defined(HAVE_MALLINFO)
++# include <malloc.h>
++#endif /* HAVE_MALLOC_H && HAVE_MALLINFO */
++
++#ifdef HAVE_AVAHI
++# include <avahi-common/timeval.h>
++#endif /* HAVE_AVAHI */
++
++
++typedef struct
++{
++ AvahiCupsPoll *cups_poll;
++
++ int fd;
++ AvahiWatchEvent occurred;
++ cups_array_t *watches;
++} cupsd_watched_fd_t;
++
++struct AvahiWatch
++{
++ cupsd_watched_fd_t *watched_fd;
++
++ AvahiWatchEvent events;
++ AvahiWatchCallback callback;
++ void *userdata;
++};
++
++struct AvahiTimeout
++{
++ AvahiCupsPoll *cups_poll;
++ AvahiTimeoutCallback callback;
++ void *userdata;
++ cupsd_timeout_t *cupsd_timeout;
++};
++
++/*
++ * Local functions...
++ */
++
++static AvahiWatch * watch_new(const AvahiPoll *api,
++ int fd,
++ AvahiWatchEvent events,
++ AvahiWatchCallback callback,
++ void *userdata);
++static void watch_free(AvahiWatch *watch);
++static void watch_update(AvahiWatch *watch,
++ AvahiWatchEvent events);
++static AvahiWatchEvent watch_get_events(AvahiWatch *watch);
++
++
++/*
++ * 'watch_read_cb' - Read callback for file descriptor
++ */
++
++static void
++watch_read_cb (void *userdata)
++{
++ AvahiWatch *watch;
++ cupsd_watched_fd_t *watched_fd = userdata;
++ watched_fd->occurred |= AVAHI_WATCH_IN;
++ for (watch = (AvahiWatch *)cupsArrayFirst(watched_fd->watches);
++ watch;
++ watch = (AvahiWatch *)cupsArrayNext(watched_fd->watches))
++ {
++ if (watch->events & watched_fd->occurred)
++ {
++ (watch->callback) (watch, watched_fd->fd,
++ AVAHI_WATCH_IN, watch->userdata);
++ watched_fd->occurred &= ~AVAHI_WATCH_IN;
++ break;
++ }
++ }
++}
++
++
++/*
++ * 'watch_write_cb' - Write callback for file descriptor
++ */
++
++static void
++watch_write_cb (void *userdata)
++{
++ AvahiWatch *watch;
++ cupsd_watched_fd_t *watched_fd = userdata;
++ watched_fd->occurred |= AVAHI_WATCH_OUT;
++ for (watch = (AvahiWatch *)cupsArrayFirst(watched_fd->watches);
++ watch;
++ watch = (AvahiWatch *)cupsArrayNext(watched_fd->watches))
++ {
++ if (watch->events & watched_fd->occurred)
++ {
++ (watch->callback) (watch, watched_fd->fd,
++ AVAHI_WATCH_OUT, watch->userdata);
++ watched_fd->occurred &= ~AVAHI_WATCH_OUT;
++ break;
++ }
++ }
++}
++
++
++/*
++ * 'watched_fd_add_select' - Call cupsdAddSelect() as needed
++ */
++
++static int /* O - Watches? */
++watched_fd_add_select (cupsd_watched_fd_t *watched_fd)
++{
++ AvahiWatch *watch;
++ cupsd_selfunc_t read_cb = NULL, write_cb = NULL;
++ int any_watches = 0;
++
++ for (watch = (AvahiWatch *)cupsArrayFirst(watched_fd->watches);
++ watch;
++ watch = (AvahiWatch *)cupsArrayNext(watched_fd->watches))
++ {
++ any_watches = 1;
++ if (watch->events & (AVAHI_WATCH_IN |
++ AVAHI_WATCH_ERR |
++ AVAHI_WATCH_HUP))
++ {
++ read_cb = (cupsd_selfunc_t)watch_read_cb;
++ if (write_cb != NULL)
++ break;
++ }
++
++ if (watch->events & AVAHI_WATCH_OUT)
++ {
++ write_cb = (cupsd_selfunc_t)watch_write_cb;
++ if (read_cb != NULL)
++ break;
++ }
++ }
++
++ if (read_cb || write_cb)
++ cupsdAddSelect (watched_fd->fd, read_cb, write_cb, watched_fd);
++ else
++ cupsdRemoveSelect (watched_fd->fd);
++
++ return (any_watches);
++}
++
++/*
++ * 'watch_new' - Create a new file descriptor watch
++ */
++
++static AvahiWatch *
++watch_new (const AvahiPoll *api,
++ int fd,
++ AvahiWatchEvent events,
++ AvahiWatchCallback callback,
++ void *userdata)
++{
++ cupsd_watched_fd_t key, *watched_fd;
++ AvahiCupsPoll *cups_poll = api->userdata;
++ AvahiWatch *watch = malloc(sizeof(AvahiWatch));
++ if (watch == NULL)
++ return (NULL);
++
++ watch->events = events;
++ watch->callback = callback;
++ watch->userdata = userdata;
++
++ key.fd = fd;
++ watched_fd = cupsArrayFind (cups_poll->watched_fds, &key);
++ if (watched_fd == NULL)
++ {
++ watched_fd = malloc(sizeof(cupsd_watched_fd_t));
++ if (watched_fd == NULL)
++ {
++ free (watch);
++ return (NULL);
++ }
++
++ watched_fd->fd = fd;
++ watched_fd->occurred = 0;
++ watched_fd->cups_poll = cups_poll;
++ watched_fd->watches = cupsArrayNew (NULL, NULL);
++ cupsArrayAdd (cups_poll->watched_fds, watched_fd);
++ }
++
++ watch->watched_fd = watched_fd;
++ cupsArrayAdd(watched_fd->watches, watch);
++ watched_fd_add_select (watched_fd);
++ return (watch);
++}
++
++
++/*
++ * 'watch_free' - Free a file descriptor watch
++ */
++
++static void
++watch_free (AvahiWatch *watch)
++{
++ cupsd_watched_fd_t *watched_fd = watch->watched_fd;
++ AvahiCupsPoll *cups_poll = watched_fd->cups_poll;
++
++ cupsArrayRemove (watched_fd->watches, watch);
++ free (watch);
++
++ if (!watched_fd_add_select (watched_fd))
++ {
++ /* No more watches */
++ cupsArrayRemove (cups_poll->watched_fds, watched_fd);
++ free (watched_fd);
++ }
++}
++
++
++/*
++ * 'watch_update' - Update watched events for a file descriptor
++ */
++
++static void
++watch_update (AvahiWatch *watch,
++ AvahiWatchEvent events)
++{
++ watch->events = events;
++ watched_fd_add_select (watch->watched_fd);
++}
++
++
++/*
++ * 'watch_get_events' - Get events that happened for a file descriptor
++ */
++
++static AvahiWatchEvent
++watch_get_events (AvahiWatch *watch)
++{
++ return (watch->watched_fd->occurred);
++}
++
++
++/*
++ * 'timeout_cb()' - Run a timed Avahi callback
++ */
++
++static void
++timeout_cb (cupsd_timeout_t *cupsd_timeout, void *userdata)
++{
++ AvahiTimeout *timeout = userdata;
++ (timeout->callback) (timeout, timeout->userdata);
++}
++
++
++/*
++ * 'timeout_new' - Set a wakeup time
++ */
++
++static AvahiTimeout *
++timeout_new (const AvahiPoll *api,
++ const struct timeval *tv,
++ AvahiTimeoutCallback callback,
++ void *userdata)
++{
++ AvahiTimeout *timeout;
++ AvahiCupsPoll *cups_poll = api->userdata;
++
++ timeout = malloc(sizeof(AvahiTimeout));
++ if (timeout == NULL)
++ return (NULL);
++
++ timeout->cups_poll = cups_poll;
++ timeout->callback = callback;
++ timeout->userdata = userdata;
++ timeout->cupsd_timeout = cupsdAddTimeout (tv,
++ (cupsd_timeoutfunc_t)timeout_cb,
++ timeout);
++ cupsArrayAdd (cups_poll->timeouts, timeout);
++ return (timeout);
++}
++
++
++/*
++ * 'timeout_update' - Update the expiration time for a timeout
++ */
++
++static void
++timeout_update (AvahiTimeout *timeout,
++ const struct timeval *tv)
++{
++ cupsdUpdateTimeout (timeout->cupsd_timeout, tv);
++}
++
++
++/*
++ * ' timeout_free' - Free a timeout
++ */
++
++static void
++timeout_free (AvahiTimeout *timeout)
++{
++ cupsArrayRemove (timeout->cups_poll->timeouts, timeout);
++ cupsdRemoveTimeout (timeout->cupsd_timeout);
++ free (timeout);
++}
++
++
++/*
++ * 'compare_watched_fds' - Compare watched file descriptors for array sorting
++ */
++static int
++compare_watched_fds(cupsd_watched_fd_t *p0,
++ cupsd_watched_fd_t *p1)
++{
++ /*
++ * Compare by fd (no two elements have the same fd)
++ */
++
++ if (p0->fd == p1->fd)
++ return 0;
++
++ return (p0->fd < p1->fd ? -1 : 1);
++}
++
++
++/*
++ * 'avahi_cups_poll_new' - Create a new Avahi main loop object for CUPS
++ */
++
++AvahiCupsPoll *
++avahi_cups_poll_new (void)
++{
++ AvahiCupsPoll *cups_poll = malloc(sizeof(AvahiCupsPoll));
++ if (cups_poll == NULL)
++ return (NULL);
++
++ cups_poll->watched_fds = cupsArrayNew ((cups_array_func_t)compare_watched_fds,
++ NULL);
++ cups_poll->timeouts = cupsArrayNew (NULL, NULL);
++
++ cups_poll->api.userdata = cups_poll;
++ cups_poll->api.watch_new = watch_new;
++ cups_poll->api.watch_free = watch_free;
++ cups_poll->api.watch_update = watch_update;
++ cups_poll->api.watch_get_events = watch_get_events;
++
++ cups_poll->api.timeout_new = timeout_new;
++ cups_poll->api.timeout_update = timeout_update;
++ cups_poll->api.timeout_free = timeout_free;
++
++ return (cups_poll);
++}
++
++
++/*
++ * 'avahi_cups_poll_free' - Free an Avahi main loop object for CUPS
++ */
++void
++avahi_cups_poll_free (AvahiCupsPoll *cups_poll)
++{
++ cupsd_watched_fd_t *watched_fd;
++
++ for (watched_fd = (cupsd_watched_fd_t*)cupsArrayFirst(cups_poll->watched_fds);
++ watched_fd;
++ watched_fd = (cupsd_watched_fd_t*)cupsArrayNext(cups_poll->watched_fds))
++ cupsArrayClear (watched_fd->watches);
++
++ cupsArrayClear (cups_poll->watched_fds);
++ cupsArrayClear (cups_poll->timeouts);
++}
++
++
++/*
++ * 'avahi_cups_poll_get' - Get the abstract poll API structure
++ */
++
++const AvahiPoll *
++avahi_cups_poll_get (AvahiCupsPoll *cups_poll)
++{
++ return (&cups_poll->api);
++}
++
++
++#endif /* HAVE_AVAHI ... from top of file */
++
++/*
++ * End of "$Id$".
++ */
+diff -up cups-1.7rc1/scheduler/avahi.h.avahi-no-threaded cups-1.7rc1/scheduler/avahi.h
+--- cups-1.7rc1/scheduler/avahi.h.avahi-no-threaded 2013-07-22 11:47:27.599101572 +0100
++++ cups-1.7rc1/scheduler/avahi.h 2013-07-22 11:47:27.599101572 +0100
+@@ -0,0 +1,69 @@
++/*
++ * "$Id$"
++ *
++ * Avahi poll implementation for the CUPS scheduler.
++ *
++ * Copyright (C) 2010, 2011 Red Hat, Inc.
++ * Authors:
++ * Tim Waugh <twaugh@redhat.com>
++ *
++ * Redistribution and use in source and binary forms, with or without
++ * modification, are permitted provided that the following conditions
++ * are met:
++ *
++ * Redistributions of source code must retain the above copyright
++ * notice, this list of conditions and the following disclaimer.
++ *
++ * Redistributions in binary form must reproduce the above copyright
++ * notice, this list of conditions and the following disclaimer in the
++ * documentation and/or other materials provided with the distribution.
++ *
++ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
++ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
++ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
++ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
++ * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
++ * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
++ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
++ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
++ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
++ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
++ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
++ * OF THE POSSIBILITY OF SUCH DAMAGE.
++ */
++
++#include <config.h>
++
++#ifdef HAVE_AVAHI
++# include <avahi-client/client.h>
++# include <avahi-client/publish.h>
++#endif /* HAVE_AVAHI */
++
++#ifdef HAVE_AUTHORIZATION_H
++# include <Security/Authorization.h>
++#endif /* HAVE_AUTHORIZATION_H */
++
++
++#ifdef HAVE_AVAHI
++typedef struct
++{
++ AvahiPoll api;
++ cups_array_t *watched_fds;
++ cups_array_t *timeouts;
++} AvahiCupsPoll;
++#endif /* HAVE_AVAHI */
++
++/*
++ * Prototypes...
++ */
++
++#ifdef HAVE_AVAHI
++extern AvahiCupsPoll * avahi_cups_poll_new(void);
++extern void avahi_cups_poll_free(AvahiCupsPoll *cups_poll);
++extern const AvahiPoll *avahi_cups_poll_get(AvahiCupsPoll *cups_poll);
++#endif /* HAVE_AVAHI */
++
++
++/*
++ * End of "$Id$".
++ */
+diff -up cups-1.7rc1/scheduler/cupsd.h.avahi-no-threaded cups-1.7rc1/scheduler/cupsd.h
+--- cups-1.7rc1/scheduler/cupsd.h.avahi-no-threaded 2013-05-29 12:51:34.000000000 +0100
++++ cups-1.7rc1/scheduler/cupsd.h 2013-07-22 11:47:31.319118984 +0100
+@@ -119,6 +119,7 @@ extern const char *cups_hstrerror(int);
+ #include "colorman.h"
+ #include "conf.h"
+ #include "banners.h"
++#include "avahi.h"
+ #include "dirsvc.h"
+ #include "network.h"
+ #include "subscriptions.h"
+@@ -139,6 +140,15 @@ extern const char *cups_hstrerror(int);
+
+ typedef void (*cupsd_selfunc_t)(void *data);
+
++#ifdef HAVE_AVAHI
++/*
++ * Timeout callback function type...
++ */
++
++typedef struct _cupsd_timeout_s cupsd_timeout_t;
++typedef void (*cupsd_timeoutfunc_t)(cupsd_timeout_t *timeout, void *data);
++#endif /* HAVE_AVAHI */
++
+
+ /*
+ * Globals...
+@@ -165,6 +175,11 @@ VAR int Launchd VALUE(0);
+ /* Running from launchd */
+ #endif /* HAVE_LAUNCH_H */
+
++#ifdef HAVE_AVAHI
++VAR cups_array_t *Timeouts; /* Timed callbacks for main loop */
++#endif /* HAVE_AVAHI */
++
++
+
+ /*
+ * Prototypes...
+@@ -229,6 +244,17 @@ extern void cupsdStopSelect(void);
+ extern void cupsdStartServer(void);
+ extern void cupsdStopServer(void);
+
++#ifdef HAVE_AVAHI
++extern void cupsdInitTimeouts(void);
++extern cupsd_timeout_t *cupsdAddTimeout (const struct timeval *tv,
++ cupsd_timeoutfunc_t cb,
++ void *data);
++extern cupsd_timeout_t *cupsdNextTimeout (long *delay);
++extern void cupsdRunTimeout (cupsd_timeout_t *timeout);
++extern void cupsdUpdateTimeout (cupsd_timeout_t *timeout,
++ const struct timeval *tv);
++extern void cupsdRemoveTimeout (cupsd_timeout_t *timeout);
++#endif /* HAVE_AVAHI */
+
+ /*
+ * End of "$Id: cupsd.h 10996 2013-05-29 11:51:34Z msweet $".
+diff -up cups-1.7rc1/scheduler/dirsvc.c.avahi-no-threaded cups-1.7rc1/scheduler/dirsvc.c
+--- cups-1.7rc1/scheduler/dirsvc.c.avahi-no-threaded 2013-05-29 12:51:34.000000000 +0100
++++ cups-1.7rc1/scheduler/dirsvc.c 2013-07-22 11:47:27.600101576 +0100
+@@ -212,7 +212,7 @@ cupsdStartBrowsing(void)
+ }
+
+ # else /* HAVE_AVAHI */
+- if ((DNSSDMaster = avahi_threaded_poll_new()) == NULL)
++ if ((DNSSDMaster = avahi_cups_poll_new()) == NULL)
+ {
+ cupsdLogMessage(CUPSD_LOG_ERROR, "Unable to create DNS-SD thread.");
+
+@@ -223,7 +223,7 @@ cupsdStartBrowsing(void)
+ {
+ int error; /* Error code, if any */
+
+- DNSSDClient = avahi_client_new(avahi_threaded_poll_get(DNSSDMaster), 0,
++ DNSSDClient = avahi_client_new(avahi_cups_poll_get(DNSSDMaster), 0,
+ NULL, NULL, &error);
+
+ if (DNSSDClient == NULL)
+@@ -235,11 +235,9 @@ cupsdStartBrowsing(void)
+ if (FatalErrors & CUPSD_FATAL_BROWSE)
+ cupsdEndProcess(getpid(), 0);
+
+- avahi_threaded_poll_free(DNSSDMaster);
++ avahi_cups_poll_free(DNSSDMaster);
+ DNSSDMaster = NULL;
+ }
+- else
+- avahi_threaded_poll_start(DNSSDMaster);
+ }
+ # endif /* HAVE_DNSSD */
+
+@@ -746,9 +744,7 @@ dnssdDeregisterInstance(
+ DNSServiceRefDeallocate(*srv);
+
+ # else /* HAVE_AVAHI */
+- avahi_threaded_poll_lock(DNSSDMaster);
+ avahi_entry_group_free(*srv);
+- avahi_threaded_poll_unlock(DNSSDMaster);
+ # endif /* HAVE_DNSSD */
+
+ *srv = NULL;
+@@ -1043,14 +1039,10 @@ dnssdRegisterInstance(
+ (void)commit;
+
+ # else /* HAVE_AVAHI */
+- avahi_threaded_poll_lock(DNSSDMaster);
+-
+ if (!*srv)
+ *srv = avahi_entry_group_new(DNSSDClient, dnssdRegisterCallback, NULL);
+ if (!*srv)
+ {
+- avahi_threaded_poll_unlock(DNSSDMaster);
+-
+ cupsdLogMessage(CUPSD_LOG_WARN, "DNS-SD registration of \"%s\" failed: %s",
+ name, dnssdErrorString(avahi_client_errno(DNSSDClient)));
+ return (0);
+@@ -1165,8 +1157,6 @@ dnssdRegisterInstance(
+ cupsdLogMessage(CUPSD_LOG_DEBUG, "DNS-SD commit of \"%s\" failed.",
+ name);
+ }
+-
+- avahi_threaded_poll_unlock(DNSSDMaster);
+ # endif /* HAVE_DNSSD */
+
+ if (error)
+@@ -1338,7 +1328,7 @@ dnssdStop(void)
+ avahi_client_free(DNSSDClient);
+ DNSSDClient = NULL;
+
+- avahi_threaded_poll_free(DNSSDMaster);
++ avahi_cups_poll_free(DNSSDMaster);
+ DNSSDMaster = NULL;
+ # endif /* HAVE_DNSSD */
+
+diff -up cups-1.7rc1/scheduler/dirsvc.h.avahi-no-threaded cups-1.7rc1/scheduler/dirsvc.h
+--- cups-1.7rc1/scheduler/dirsvc.h.avahi-no-threaded 2013-05-29 12:51:34.000000000 +0100
++++ cups-1.7rc1/scheduler/dirsvc.h 2013-07-22 11:47:27.600101576 +0100
+@@ -51,7 +51,7 @@ VAR cups_array_t *DNSSDPrinters VALUE(NU
+ VAR DNSServiceRef DNSSDMaster VALUE(NULL);
+ /* Master DNS-SD service reference */
+ # else /* HAVE_AVAHI */
+-VAR AvahiThreadedPoll *DNSSDMaster VALUE(NULL);
++VAR AvahiCupsPoll *DNSSDMaster VALUE(NULL);
+ /* Master polling interface for Avahi */
+ VAR AvahiClient *DNSSDClient VALUE(NULL);
+ /* Client information */
+diff -up cups-1.7rc1/scheduler/main.c.avahi-no-threaded cups-1.7rc1/scheduler/main.c
+--- cups-1.7rc1/scheduler/main.c.avahi-no-threaded 2013-07-22 11:47:27.578101474 +0100
++++ cups-1.7rc1/scheduler/main.c 2013-07-22 11:47:27.601101581 +0100
+@@ -155,6 +155,10 @@ main(int argc, /* I - Number of comm
+ int launchd_idle_exit;
+ /* Idle exit on select timeout? */
+ #endif /* HAVE_LAUNCHD */
++#ifdef HAVE_AVAHI
++ cupsd_timeout_t *tmo; /* Next scheduled timed callback */
++ long tmo_delay; /* Time before it must be called */
++#endif /* HAVE_AVAHI */
+
+
+ #ifdef HAVE_GETEUID
+@@ -596,6 +600,14 @@ main(int argc, /* I - Number of comm
+
+ httpInitialize();
+
++#ifdef HAVE_AVAHI
++ /*
++ * Initialize timed callback structures.
++ */
++
++ cupsdInitTimeouts();
++#endif /* HAVE_AVAHI */
++
+ cupsdStartServer();
+
+ /*
+@@ -917,6 +929,16 @@ main(int argc, /* I - Number of comm
+ }
+ #endif /* __APPLE__ */
+
++#ifdef HAVE_AVAHI
++ /*
++ * If a timed callback is due, run it.
++ */
++
++ tmo = cupsdNextTimeout (&tmo_delay);
++ if (tmo && tmo_delay == 0)
++ cupsdRunTimeout (tmo);
++#endif /* HAVE_AVAHI */
++
+ #ifndef __APPLE__
+ /*
+ * Update the network interfaces once a minute...
+@@ -1897,6 +1919,10 @@ select_timeout(int fds) /* I - Number
+ cupsd_job_t *job; /* Job information */
+ cupsd_subscription_t *sub; /* Subscription information */
+ const char *why; /* Debugging aid */
++#ifdef HAVE_AVAHI
++ cupsd_timeout_t *tmo; /* Timed callback */
++ long tmo_delay; /* Seconds before calling it */
++#endif /* HAVE_AVAHI */
+
+
+ cupsdLogMessage(CUPSD_LOG_DEBUG2, "select_timeout: JobHistoryUpdate=%ld",
+@@ -1942,6 +1968,19 @@ select_timeout(int fds) /* I - Number
+ }
+ #endif /* __APPLE__ */
+
++#ifdef HAVE_AVAHI
++ /*
++ * See if there are any scheduled timed callbacks to run.
++ */
++
++ if ((tmo = cupsdNextTimeout(&tmo_delay)) != NULL &&
++ (now + tmo_delay) < timeout)
++ {
++ timeout = tmo_delay;
++ why = "run a timed callback";
++ }
++#endif /* HAVE_AVAHI */
++
+ /*
+ * Check whether we are accepting new connections...
+ */
+diff -up cups-1.7rc1/scheduler/Makefile.avahi-no-threaded cups-1.7rc1/scheduler/Makefile
+--- cups-1.7rc1/scheduler/Makefile.avahi-no-threaded 2013-07-22 11:47:27.578101474 +0100
++++ cups-1.7rc1/scheduler/Makefile 2013-07-22 11:47:27.601101581 +0100
+@@ -17,6 +17,7 @@ include ../Makedefs
+
+ CUPSDOBJS = \
+ auth.o \
++ avahi.o \
+ banners.o \
+ cert.o \
+ classes.o \
+@@ -41,6 +42,7 @@ CUPSDOBJS = \
+ statbuf.o \
+ subscriptions.o \
+ sysman.o \
++ timeout.o \
+ tls.o
+ LIBOBJS = \
+ filter.o \
+diff -up cups-1.7rc1/scheduler/timeout.c.avahi-no-threaded cups-1.7rc1/scheduler/timeout.c
+--- cups-1.7rc1/scheduler/timeout.c.avahi-no-threaded 2013-07-22 11:47:27.601101581 +0100
++++ cups-1.7rc1/scheduler/timeout.c 2013-07-22 11:47:27.601101581 +0100
+@@ -0,0 +1,235 @@
++/*
++ * "$Id$"
++ *
++ * Timeout functions for the Common UNIX Printing System (CUPS).
++ *
++ * Copyright (C) 2010, 2011 Red Hat, Inc.
++ * Authors:
++ * Tim Waugh <twaugh@redhat.com>
++ *
++ * Redistribution and use in source and binary forms, with or without
++ * modification, are permitted provided that the following conditions
++ * are met:
++ *
++ * Redistributions of source code must retain the above copyright
++ * notice, this list of conditions and the following disclaimer.
++ *
++ * Redistributions in binary form must reproduce the above copyright
++ * notice, this list of conditions and the following disclaimer in the
++ * documentation and/or other materials provided with the distribution.
++ *
++ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
++ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
++ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
++ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
++ * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
++ * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
++ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
++ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
++ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
++ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
++ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
++ * OF THE POSSIBILITY OF SUCH DAMAGE.
++ *
++ * Contents:
++ *
++ * cupsdInitTimeouts() - Initialise timeout structure.
++ * cupsdAddTimeout() - Add a timed callback.
++ * cupsdNextTimeout() - Find the next enabled timed callback.
++ * cupsdUpdateTimeout() - Adjust the time of a timed callback or disable it.
++ * cupsdRemoveTimeout() - Discard a timed callback.
++ * compare_timeouts() - Compare timed callbacks for array sorting.
++ */
++
++#include <config.h>
++
++#ifdef HAVE_AVAHI /* Applies to entire file... */
++
++/*
++ * Include necessary headers...
++ */
++
++#include "cupsd.h"
++
++#if defined(HAVE_MALLOC_H) && defined(HAVE_MALLINFO)
++# include <malloc.h>
++#endif /* HAVE_MALLOC_H && HAVE_MALLINFO */
++
++#ifdef HAVE_AVAHI
++# include <avahi-common/timeval.h>
++#endif /* HAVE_AVAHI */
++
++
++struct _cupsd_timeout_s
++{
++ struct timeval when;
++ int enabled;
++ cupsd_timeoutfunc_t callback;
++ void *data;
++};
++
++/*
++ * Local functions...
++ */
++
++/*
++ * 'compare_timeouts()' - Compare timed callbacks for array sorting.
++ */
++
++static int
++compare_addrs (void *p0, void *p1)
++{
++ if (p0 == p1)
++ return (0);
++ if (p0 < p1)
++ return (-1);
++ return (1);
++}
++
++static int
++compare_timeouts (cupsd_timeout_t *p0, cupsd_timeout_t *p1)
++{
++ int addrsdiff = compare_addrs (p0, p1);
++ int tvdiff;
++
++ if (addrsdiff == 0)
++ return (0);
++
++ if (!p0->enabled || !p1->enabled)
++ {
++ if (!p0->enabled && !p1->enabled)
++ return (addrsdiff);
++
++ return (p0->enabled ? -1 : 1);
++ }
++
++ tvdiff = avahi_timeval_compare (&p0->when, &p1->when);
++ if (tvdiff != 0)
++ return (tvdiff);
++
++ return (addrsdiff);
++}
++
++
++/*
++ * 'cupsdInitTimeouts()' - Initialise timeout structures.
++ */
++
++void
++cupsdInitTimeouts(void)
++{
++ Timeouts = cupsArrayNew ((cups_array_func_t)compare_timeouts, NULL);
++}
++
++
++/*
++ * 'cupsdAddTimeout()' - Add a timed callback.
++ */
++
++cupsd_timeout_t * /* O - Timeout handle */
++cupsdAddTimeout(const struct timeval *tv, /* I - Absolute time */
++ cupsd_timeoutfunc_t cb, /* I - Callback function */
++ void *data) /* I - User data */
++{
++ cupsd_timeout_t *timeout;
++
++ timeout = malloc (sizeof(cupsd_timeout_t));
++ if (timeout != NULL)
++ {
++ timeout->enabled = (tv != NULL);
++ if (tv)
++ {
++ timeout->when.tv_sec = tv->tv_sec;
++ timeout->when.tv_usec = tv->tv_usec;
++ }
++
++ timeout->callback = cb;
++ timeout->data = data;
++ cupsArrayAdd (Timeouts, timeout);
++ }
++
++ return timeout;
++}
++
++
++/*
++ * 'cupsdNextTimeout()' - Find the next enabled timed callback.
++ */
++
++cupsd_timeout_t * /* O - Next enabled timeout or NULL */
++cupsdNextTimeout(long *delay) /* O - Seconds before scheduled */
++{
++ cupsd_timeout_t *first = cupsArrayFirst (Timeouts);
++ struct timeval curtime;
++
++ if (first && !first->enabled)
++ first = NULL;
++
++ if (first && delay)
++ {
++ gettimeofday (&curtime, NULL);
++ if (avahi_timeval_compare (&curtime, &first->when) > 0)
++ {
++ *delay = 0;
++ } else {
++ *delay = 1 + first->when.tv_sec - curtime.tv_sec;
++ if (first->when.tv_usec < curtime.tv_usec)
++ (*delay)--;
++ }
++ }
++
++ return (first);
++}
++
++
++/*
++ * 'cupsdRunTimeout()' - Run a timed callback.
++ */
++
++void
++cupsdRunTimeout(cupsd_timeout_t *timeout) /* I - Timeout */
++{
++ if (!timeout)
++ return;
++ timeout->enabled = 0;
++ if (!timeout->callback)
++ return;
++ timeout->callback (timeout, timeout->data);
++}
++
++/*
++ * 'cupsdUpdateTimeout()' - Adjust the time of a timed callback or disable it.
++ */
++
++void
++cupsdUpdateTimeout(cupsd_timeout_t *timeout, /* I - Timeout */
++ const struct timeval *tv) /* I - Absolute time or NULL */
++{
++ cupsArrayRemove (Timeouts, timeout);
++ timeout->enabled = (tv != NULL);
++ if (tv)
++ {
++ timeout->when.tv_sec = tv->tv_sec;
++ timeout->when.tv_usec = tv->tv_usec;
++ }
++ cupsArrayAdd (Timeouts, timeout);
++}
++
++
++/*
++ * 'cupsdRemoveTimeout()' - Discard a timed callback.
++ */
++
++void
++cupsdRemoveTimeout(cupsd_timeout_t *timeout) /* I - Timeout */
++{
++ cupsArrayRemove (Timeouts, timeout);
++ free (timeout);
++}
++
++
++#endif /* HAVE_AVAHI ... from top of file */
++
++/*
++ * End of "$Id$".
++ */
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