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cups/SOURCES/cups-avahi-no-threaded.patch

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import cups-2.2.6-33.el8
2020-04-23 22:02:09 +00:00
diff -up cups-2.2.5/scheduler/avahi.c.avahi-no-threaded cups-2.2.5/scheduler/avahi.c
--- cups-2.2.5/scheduler/avahi.c.avahi-no-threaded 2017-10-17 19:03:00.760881016 +0200
+++ cups-2.2.5/scheduler/avahi.c 2017-10-17 19:03:00.760881016 +0200
@@ -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-2.2.5/scheduler/avahi.h.avahi-no-threaded cups-2.2.5/scheduler/avahi.h
--- cups-2.2.5/scheduler/avahi.h.avahi-no-threaded 2017-10-17 19:03:00.760881016 +0200
+++ cups-2.2.5/scheduler/avahi.h 2017-10-17 19:03:00.760881016 +0200
@@ -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-2.2.5/scheduler/cupsd.h.avahi-no-threaded cups-2.2.5/scheduler/cupsd.h
--- cups-2.2.5/scheduler/cupsd.h.avahi-no-threaded 2017-10-13 20:22:26.000000000 +0200
+++ cups-2.2.5/scheduler/cupsd.h 2017-10-17 19:03:00.760881016 +0200
@@ -118,6 +118,7 @@ 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"
@@ -138,6 +139,15 @@ 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...
@@ -162,6 +172,9 @@ VAR int OnDemand VALUE(0);
/* Launched on demand */
#endif /* HAVE_ONDEMAND */
+#ifdef HAVE_AVAHI
+VAR cups_array_t *Timeouts; /* Timed callbacks for main loop */
+#endif /* HAVE_AVAHI */
/*
* Prototypes...
@@ -224,3 +237,15 @@ extern void cupsdStopSelect(void);
/* server.c */
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 */
\ No newline at end of file
diff -up cups-2.2.5/scheduler/dirsvc.c.avahi-no-threaded cups-2.2.5/scheduler/dirsvc.c
--- cups-2.2.5/scheduler/dirsvc.c.avahi-no-threaded 2017-10-13 20:22:26.000000000 +0200
+++ cups-2.2.5/scheduler/dirsvc.c 2017-10-17 19:05:35.938592292 +0200
@@ -193,7 +193,7 @@ cupsdStartBrowsing(void)
cupsdUpdateDNSSDName();
# 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.");
@@ -204,7 +204,7 @@ cupsdStartBrowsing(void)
{
int error; /* Error code, if any */
- DNSSDClient = avahi_client_new(avahi_threaded_poll_get(DNSSDMaster), AVAHI_CLIENT_NO_FAIL, dnssdClientCallback, NULL, &error);
+ DNSSDClient = avahi_client_new(avahi_cups_poll_get(DNSSDMaster), AVAHI_CLIENT_NO_FAIL, dnssdClientCallback, NULL, &error);
if (DNSSDClient == NULL)
{
@@ -215,11 +215,9 @@ 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 */
}
@@ -635,7 +633,7 @@ dnssdClientCallback(
* Renew Avahi client...
*/
- DNSSDClient = avahi_client_new(avahi_threaded_poll_get(DNSSDMaster), AVAHI_CLIENT_NO_FAIL, dnssdClientCallback, NULL, &error);
+ DNSSDClient = avahi_client_new(avahi_cups_poll_get(DNSSDMaster), AVAHI_CLIENT_NO_FAIL, dnssdClientCallback, NULL, &error);
if (!DNSSDClient)
{
@@ -701,13 +699,7 @@ dnssdDeregisterInstance(
# else /* HAVE_AVAHI */
if (*srv)
{
- if (!from_callback)
- avahi_threaded_poll_lock(DNSSDMaster);
-
avahi_entry_group_free(*srv);
-
- if (!from_callback)
- avahi_threaded_poll_unlock(DNSSDMaster);
}
# endif /* HAVE_DNSSD */
@@ -1029,16 +1021,10 @@ dnssdRegisterInstance(
(void)commit;
# else /* HAVE_AVAHI */
- if (!from_callback)
- avahi_threaded_poll_lock(DNSSDMaster);
-
if (!*srv)
*srv = avahi_entry_group_new(DNSSDClient, dnssdRegisterCallback, NULL);
if (!*srv)
{
- if (!from_callback)
- avahi_threaded_poll_unlock(DNSSDMaster);
-
cupsdLogMessage(CUPSD_LOG_WARN, "DNS-SD registration of \"%s\" failed: %s",
name, dnssdErrorString(avahi_client_errno(DNSSDClient)));
return (0);
@@ -1153,9 +1139,6 @@ dnssdRegisterInstance(
cupsdLogMessage(CUPSD_LOG_DEBUG, "DNS-SD commit of \"%s\" failed.",
name);
}
-
- if (!from_callback)
- avahi_threaded_poll_unlock(DNSSDMaster);
# endif /* HAVE_DNSSD */
if (error)
@@ -1326,9 +1309,6 @@ dnssdStop(void)
DNSSDMaster = NULL;
# else /* HAVE_AVAHI */
- if (DNSSDMaster)
- avahi_threaded_poll_stop(DNSSDMaster);
-
if (DNSSDClient)
{
avahi_client_free(DNSSDClient);
@@ -1337,7 +1317,7 @@ dnssdStop(void)
if (DNSSDMaster)
{
- avahi_threaded_poll_free(DNSSDMaster);
+ avahi_cups_poll_free(DNSSDMaster);
DNSSDMaster = NULL;
}
# endif /* HAVE_DNSSD */
diff -up cups-2.2.5/scheduler/dirsvc.h.avahi-no-threaded cups-2.2.5/scheduler/dirsvc.h
--- cups-2.2.5/scheduler/dirsvc.h.avahi-no-threaded 2017-10-13 20:22:26.000000000 +0200
+++ cups-2.2.5/scheduler/dirsvc.h 2017-10-17 19:03:00.761881007 +0200
@@ -49,7 +49,7 @@ 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-2.2.5/scheduler/main.c.avahi-no-threaded cups-2.2.5/scheduler/main.c
--- cups-2.2.5/scheduler/main.c.avahi-no-threaded 2017-10-17 19:03:00.753881074 +0200
+++ cups-2.2.5/scheduler/main.c 2017-10-17 19:03:00.761881007 +0200
@@ -131,7 +131,10 @@ main(int argc, /* I - Number of comm
int service_idle_exit;
/* Idle exit on select timeout? */
#endif /* HAVE_ONDEMAND */
-
+#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
/*
@@ -610,6 +613,14 @@ main(int argc, /* I - Number of comm
httpInitialize();
+#ifdef HAVE_AVAHI
+ /*
+ * Initialize timed callback structures.
+ */
+
+ cupsdInitTimeouts();
+#endif /* HAVE_AVAHI */
+
cupsdStartServer();
/*
@@ -928,6 +939,16 @@ 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...
@@ -1632,6 +1653,10 @@ select_timeout(int fds) /* I - Number
cupsd_job_t *job; /* Job information */
cupsd_printer_t *printer; /* Printer 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",
@@ -1677,6 +1702,19 @@ 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-2.2.5/scheduler/Makefile.avahi-no-threaded cups-2.2.5/scheduler/Makefile
--- cups-2.2.5/scheduler/Makefile.avahi-no-threaded 2017-10-13 20:22:26.000000000 +0200
+++ cups-2.2.5/scheduler/Makefile 2017-10-17 19:03:00.762880999 +0200
@@ -15,6 +15,7 @@ include ../Makedefs
CUPSDOBJS = \
auth.o \
+ avahi.o \
banners.o \
cert.o \
classes.o \
@@ -38,7 +39,8 @@ CUPSDOBJS = \
server.o \
statbuf.o \
subscriptions.o \
- sysman.o
+ sysman.o \
+ timeout.o
LIBOBJS = \
filter.o \
mime.o \
diff -up cups-2.2.5/scheduler/timeout.c.avahi-no-threaded cups-2.2.5/scheduler/timeout.c
--- cups-2.2.5/scheduler/timeout.c.avahi-no-threaded 2017-10-17 19:03:00.762880999 +0200
+++ cups-2.2.5/scheduler/timeout.c 2017-10-17 19:03:00.762880999 +0200
@@ -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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