2 This file is part of PulseAudio.
4 Copyright 2006 Lennart Poettering
6 PulseAudio is free software; you can redistribute it and/or modify
7 it 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 PulseAudio is distributed in the hope that it will be useful, but
12 WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 General Public License for more details.
16 You should have received a copy of the GNU Lesser General Public
17 License along with PulseAudio; if not, see <http://www.gnu.org/licenses/>.
24 #include <pulse/timeval.h>
25 #include <pulse/xmalloc.h>
27 #include <pulsecore/macro.h>
29 #include "avahi-wrap.h"
33 pa_mainloop_api *mainloop;
37 pa_io_event *io_event;
38 pa_avahi_poll *avahi_poll;
39 AvahiWatchEvent current_event;
40 AvahiWatchCallback callback;
44 static AvahiWatchEvent translate_io_flags_back(pa_io_event_flags_t e) {
46 (e & PA_IO_EVENT_INPUT ? AVAHI_WATCH_IN : 0) |
47 (e & PA_IO_EVENT_OUTPUT ? AVAHI_WATCH_OUT : 0) |
48 (e & PA_IO_EVENT_ERROR ? AVAHI_WATCH_ERR : 0) |
49 (e & PA_IO_EVENT_HANGUP ? AVAHI_WATCH_HUP : 0);
52 static pa_io_event_flags_t translate_io_flags(AvahiWatchEvent e) {
54 (e & AVAHI_WATCH_IN ? PA_IO_EVENT_INPUT : 0) |
55 (e & AVAHI_WATCH_OUT ? PA_IO_EVENT_OUTPUT : 0) |
56 (e & AVAHI_WATCH_ERR ? PA_IO_EVENT_ERROR : 0) |
57 (e & AVAHI_WATCH_HUP ? PA_IO_EVENT_HANGUP : 0);
60 static void watch_callback(pa_mainloop_api*a, pa_io_event* e, int fd, pa_io_event_flags_t events, void *userdata) {
61 AvahiWatch *w = userdata;
67 w->current_event = translate_io_flags_back(events);
68 w->callback(w, fd, w->current_event, w->userdata);
72 static AvahiWatch* watch_new(const AvahiPoll *api, int fd, AvahiWatchEvent event, AvahiWatchCallback callback, void *userdata) {
79 pa_assert_se(p = api->userdata);
81 w = pa_xnew(AvahiWatch, 1);
84 w->callback = callback;
85 w->userdata = userdata;
86 w->io_event = p->mainloop->io_new(p->mainloop, fd, translate_io_flags(event), watch_callback, w);
91 static void watch_update(AvahiWatch *w, AvahiWatchEvent event) {
94 w->avahi_poll->mainloop->io_enable(w->io_event, translate_io_flags(event));
97 static AvahiWatchEvent watch_get_events(AvahiWatch *w) {
100 return w->current_event;
103 static void watch_free(AvahiWatch *w) {
106 w->avahi_poll->mainloop->io_free(w->io_event);
110 struct AvahiTimeout {
111 pa_time_event *time_event;
112 pa_avahi_poll *avahi_poll;
113 AvahiTimeoutCallback callback;
117 static void timeout_callback(pa_mainloop_api*a, pa_time_event* e, const struct timeval *t, void *userdata) {
118 AvahiTimeout *to = userdata;
123 to->callback(to, to->userdata);
126 static AvahiTimeout* timeout_new(const AvahiPoll *api, const struct timeval *tv, AvahiTimeoutCallback callback, void *userdata) {
132 pa_assert_se(p = api->userdata);
134 t = pa_xnew(AvahiTimeout, 1);
136 t->callback = callback;
137 t->userdata = userdata;
139 t->time_event = tv ? p->mainloop->time_new(p->mainloop, tv, timeout_callback, t) : NULL;
144 static void timeout_update(AvahiTimeout *t, const struct timeval *tv) {
148 if (t->time_event && tv)
149 t->avahi_poll->mainloop->time_restart(t->time_event, tv);
150 else if (!t->time_event && tv)
151 t->time_event = t->avahi_poll->mainloop->time_new(t->avahi_poll->mainloop, tv, timeout_callback, t);
152 else if (t->time_event && !tv) {
153 t->avahi_poll->mainloop->time_free(t->time_event);
154 t->time_event = NULL;
158 static void timeout_free(AvahiTimeout *t) {
162 t->avahi_poll->mainloop->time_free(t->time_event);
166 AvahiPoll* pa_avahi_poll_new(pa_mainloop_api *m) {
171 p = pa_xnew(pa_avahi_poll, 1);
174 p->api.watch_new = watch_new;
175 p->api.watch_update = watch_update;
176 p->api.watch_get_events = watch_get_events;
177 p->api.watch_free = watch_free;
178 p->api.timeout_new = timeout_new;
179 p->api.timeout_update = timeout_update;
180 p->api.timeout_free = timeout_free;
186 void pa_avahi_poll_free(AvahiPoll *api) {
189 pa_assert_se(p = api->userdata);