4 This file is part of avahi.
6 avahi is free software; you can redistribute it and/or modify it
7 under the terms of the GNU Lesser General Public License as
8 published by the Free Software Foundation; either version 2.1 of the
9 License, or (at your option) any later version.
11 avahi is distributed in the hope that it will be useful, but WITHOUT
12 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
13 or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General
14 Public License for more details.
16 You should have received a copy of the GNU Lesser General Public
17 License along with avahi; if not, write to the Free Software
18 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
31 #include "dbus-watch-glue.h"
33 static AvahiWatchEvent translate_dbus_to_avahi(unsigned int f) {
34 AvahiWatchEvent e = 0;
36 if (f & DBUS_WATCH_READABLE)
38 if (f & DBUS_WATCH_WRITABLE)
40 if (f & DBUS_WATCH_ERROR)
42 if (f & DBUS_WATCH_HANGUP)
48 static unsigned int translate_avahi_to_dbus(AvahiWatchEvent e) {
51 if (e & AVAHI_WATCH_IN)
52 f |= DBUS_WATCH_READABLE;
53 if (e & AVAHI_WATCH_OUT)
54 f |= DBUS_WATCH_WRITABLE;
55 if (e & AVAHI_WATCH_ERR)
56 f |= DBUS_WATCH_ERROR;
57 if (e & AVAHI_WATCH_HUP)
58 f |= DBUS_WATCH_HANGUP;
64 DBusConnection *connection;
65 const AvahiPoll *poll_api;
66 AvahiTimeout *dispatch_timeout;
70 static ConnectionData *connection_data_ref(ConnectionData *d) {
78 static void connection_data_unref(ConnectionData *d) {
83 d->poll_api->timeout_free(d->dispatch_timeout);
88 static void request_dispatch(ConnectionData *d, int enable) {
89 static const struct timeval tv = { 0, 0 };
93 assert(dbus_connection_get_dispatch_status(d->connection) == DBUS_DISPATCH_DATA_REMAINS);
94 d->poll_api->timeout_update(d->dispatch_timeout, &tv);
96 d->poll_api->timeout_update(d->dispatch_timeout, NULL);
99 static void dispatch_timeout_callback(AvahiTimeout *t, void *userdata) {
100 ConnectionData *d = userdata;
104 connection_data_ref(d);
105 dbus_connection_ref(d->connection);
107 if (dbus_connection_dispatch(d->connection) == DBUS_DISPATCH_DATA_REMAINS)
108 /* If there's still data, request that this handler is called again */
109 request_dispatch(d, 1);
111 request_dispatch(d, 0);
113 dbus_connection_unref(d->connection);
114 connection_data_unref(d);
117 static void watch_callback(AvahiWatch *avahi_watch, AVAHI_GCC_UNUSED int fd, AvahiWatchEvent events, void *userdata) {
118 DBusWatch *dbus_watch = userdata;
123 dbus_watch_handle(dbus_watch, translate_avahi_to_dbus(events));
124 /* Ignore the return value */
127 static dbus_bool_t update_watch(const AvahiPoll *poll_api, DBusWatch *dbus_watch) {
128 AvahiWatch *avahi_watch;
133 avahi_watch = dbus_watch_get_data(dbus_watch);
135 b = dbus_watch_get_enabled(dbus_watch);
137 if (b && !avahi_watch) {
139 if (!(avahi_watch = poll_api->watch_new(
141 #if (DBUS_VERSION_MAJOR == 1 && DBUS_VERSION_MINOR == 1 && DBUS_VERSION_MICRO >= 1) || (DBUS_VERSION_MAJOR == 1 && DBUS_VERSION_MINOR > 1) || (DBUS_VERSION_MAJOR > 1)
142 dbus_watch_get_unix_fd(dbus_watch),
144 dbus_watch_get_fd(dbus_watch),
146 translate_dbus_to_avahi(dbus_watch_get_flags(dbus_watch)),
151 dbus_watch_set_data(dbus_watch, avahi_watch, NULL);
153 } else if (!b && avahi_watch) {
155 poll_api->watch_free(avahi_watch);
156 dbus_watch_set_data(dbus_watch, NULL, NULL);
158 } else if (avahi_watch) {
161 poll_api->watch_update(avahi_watch, dbus_watch_get_flags(dbus_watch));
167 static dbus_bool_t add_watch(DBusWatch *dbus_watch, void *userdata) {
168 ConnectionData *d = userdata;
173 return update_watch(d->poll_api, dbus_watch);
176 static void remove_watch(DBusWatch *dbus_watch, void *userdata) {
177 ConnectionData *d = userdata;
178 AvahiWatch *avahi_watch;
183 if ((avahi_watch = dbus_watch_get_data(dbus_watch))) {
184 d->poll_api->watch_free(avahi_watch);
185 dbus_watch_set_data(dbus_watch, NULL, NULL);
189 static void watch_toggled(DBusWatch *dbus_watch, void *userdata) {
190 ConnectionData *d = userdata;
195 update_watch(d->poll_api, dbus_watch);
198 typedef struct TimeoutData {
199 const AvahiPoll *poll_api;
200 AvahiTimeout *avahi_timeout;
201 DBusTimeout *dbus_timeout;
205 static TimeoutData* timeout_data_ref(TimeoutData *t) {
213 static void timeout_data_unref(TimeoutData *t) {
218 if (t->avahi_timeout)
219 t->poll_api->timeout_free(t->avahi_timeout);
225 static void update_timeout(TimeoutData *timeout) {
227 assert(timeout->ref >= 1);
229 if (dbus_timeout_get_enabled(timeout->dbus_timeout)) {
231 avahi_elapse_time(&tv, dbus_timeout_get_interval(timeout->dbus_timeout), 0);
232 timeout->poll_api->timeout_update(timeout->
235 timeout->poll_api->timeout_update(timeout->avahi_timeout, NULL);
239 static void timeout_callback(AvahiTimeout *avahi_timeout, void *userdata) {
240 TimeoutData *timeout = userdata;
242 assert(avahi_timeout);
245 timeout_data_ref(timeout);
247 dbus_timeout_handle(timeout->dbus_timeout);
248 /* Ignore the return value */
250 if (timeout->avahi_timeout)
251 update_timeout(timeout);
253 timeout_data_unref(timeout);
256 static dbus_bool_t add_timeout(DBusTimeout *dbus_timeout, void *userdata) {
257 TimeoutData *timeout;
258 ConnectionData *d = userdata;
262 assert(dbus_timeout);
265 if (!(timeout = avahi_new(TimeoutData, 1)))
268 timeout->dbus_timeout = dbus_timeout;
269 timeout->poll_api = d->poll_api;
272 if ((b = dbus_timeout_get_enabled(dbus_timeout)))
273 avahi_elapse_time(&tv, dbus_timeout_get_interval(dbus_timeout), 0);
275 if (!(timeout->avahi_timeout = d->poll_api->timeout_new(
284 dbus_timeout_set_data(dbus_timeout, timeout, (DBusFreeFunction) timeout_data_unref);
288 static void remove_timeout(DBusTimeout *dbus_timeout, void *userdata) {
289 ConnectionData *d = userdata;
290 TimeoutData *timeout;
292 assert(dbus_timeout);
295 timeout = dbus_timeout_get_data(dbus_timeout);
298 d->poll_api->timeout_free(timeout->avahi_timeout);
299 timeout->avahi_timeout = NULL;
302 static void timeout_toggled(DBusTimeout *dbus_timeout, AVAHI_GCC_UNUSED void *userdata) {
303 TimeoutData *timeout;
305 assert(dbus_timeout);
306 timeout = dbus_timeout_get_data(dbus_timeout);
309 update_timeout(timeout);
312 static void dispatch_status(AVAHI_GCC_UNUSED DBusConnection *connection, DBusDispatchStatus new_status, void *userdata) {
313 ConnectionData *d = userdata;
315 if (new_status == DBUS_DISPATCH_DATA_REMAINS)
316 request_dispatch(d, 1);
319 int avahi_dbus_connection_glue(DBusConnection *c, const AvahiPoll *poll_api) {
320 ConnectionData *d = NULL;
325 if (!(d = avahi_new(ConnectionData, 1)))
328 d->poll_api = poll_api;
332 if (!(d->dispatch_timeout = poll_api->timeout_new(poll_api, NULL, dispatch_timeout_callback, d)))
335 if (!(dbus_connection_set_watch_functions(c, add_watch, remove_watch, watch_toggled, connection_data_ref(d), (DBusFreeFunction)connection_data_unref)))
338 if (!(dbus_connection_set_timeout_functions(c, add_timeout, remove_timeout, timeout_toggled, connection_data_ref(d), (DBusFreeFunction)connection_data_unref)))
341 dbus_connection_set_dispatch_status_function(c, dispatch_status, connection_data_ref(d), (DBusFreeFunction)connection_data_unref);
343 if (dbus_connection_get_dispatch_status(c) == DBUS_DISPATCH_DATA_REMAINS)
344 request_dispatch(d, 1);
346 connection_data_unref(d);
353 d->poll_api->timeout_free(d->dispatch_timeout);