4 This file is part of PulseAudio.
6 Copyright 2004-2006 Lennart Poettering
7 Copyright 2006 Pierre Ossman <ossman@cendio.se> for Cendio AB
9 PulseAudio is free software; you can redistribute it and/or modify
10 it under the terms of the GNU Lesser General Public License as published
11 by the Free Software Foundation; either version 2 of the License,
12 or (at your option) any later version.
14 PulseAudio is distributed in the hope that it will be useful, but
15 WITHOUT ANY WARRANTY; without even the implied warranty of
16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17 General Public License for more details.
19 You should have received a copy of the GNU Lesser General Public License
20 along with PulseAudio; if not, write to the Free Software
21 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
34 #include <pulse/timeval.h>
35 #include <pulse/xmalloc.h>
37 #include <pulsecore/module.h>
38 #include <pulsecore/sink.h>
39 #include <pulsecore/source.h>
40 #include <pulsecore/namereg.h>
41 #include <pulsecore/core-util.h>
42 #include <pulsecore/core-scache.h>
43 #include <pulsecore/autoload.h>
44 #include <pulsecore/core-subscribe.h>
45 #include <pulsecore/props.h>
46 #include <pulsecore/random.h>
47 #include <pulsecore/log.h>
48 #include <pulsecore/macro.h>
52 static int core_process_msg(pa_msgobject
*o
, int code
, void *userdata
, pa_memchunk
*chunk
) {
53 pa_core
*c
= PA_CORE(o
);
55 pa_core_assert_ref(c
);
59 case PA_CORE_MESSAGE_UNLOAD_MODULE
:
60 pa_module_unload(c
, userdata
);
68 static void asyncmsgq_cb(pa_mainloop_api
*api
, pa_io_event
* e
, int fd
, pa_io_event_flags_t events
, void *userdata
) {
69 pa_core
*c
= userdata
;
71 pa_assert(pa_asyncmsgq_get_fd(c
->asyncmsgq
) == fd
);
72 pa_assert(events
== PA_IO_EVENT_INPUT
);
74 pa_asyncmsgq_after_poll(c
->asyncmsgq
);
82 /* Check whether there is a message for us to process */
83 while (pa_asyncmsgq_get(c
->asyncmsgq
, &object
, &code
, &data
, &chunk
, 0) == 0) {
84 pa_asyncmsgq_dispatch(object
, code
, data
, &chunk
);
85 pa_asyncmsgq_done(c
->asyncmsgq
, 0);
88 if (pa_asyncmsgq_before_poll(c
->asyncmsgq
) == 0)
93 static void core_free(pa_object
*o
);
95 pa_core
* pa_core_new(pa_mainloop_api
*m
, int shared
) {
102 if (!(pool
= pa_mempool_new(shared
))) {
103 pa_log_warn("failed to allocate shared memory pool. Falling back to a normal memory pool.");
109 if (!(pool
= pa_mempool_new(shared
))) {
110 pa_log("pa_mempool_new() failed.");
115 c
= pa_msgobject_new(pa_core
);
116 c
->parent
.parent
.free
= core_free
;
117 c
->parent
.process_msg
= core_process_msg
;
120 c
->clients
= pa_idxset_new(NULL
, NULL
);
121 c
->sinks
= pa_idxset_new(NULL
, NULL
);
122 c
->sources
= pa_idxset_new(NULL
, NULL
);
123 c
->source_outputs
= pa_idxset_new(NULL
, NULL
);
124 c
->sink_inputs
= pa_idxset_new(NULL
, NULL
);
126 c
->default_source_name
= c
->default_sink_name
= NULL
;
131 c
->autoload_idxset
= NULL
;
132 c
->autoload_hashmap
= NULL
;
133 c
->running_as_daemon
= 0;
135 c
->default_sample_spec
.format
= PA_SAMPLE_S16NE
;
136 c
->default_sample_spec
.rate
= 44100;
137 c
->default_sample_spec
.channels
= 2;
139 c
->module_auto_unload_event
= NULL
;
140 c
->module_defer_unload_event
= NULL
;
141 c
->scache_auto_unload_event
= NULL
;
143 c
->subscription_defer_event
= NULL
;
144 PA_LLIST_HEAD_INIT(pa_subscription
, c
->subscriptions
);
145 PA_LLIST_HEAD_INIT(pa_subscription_event
, c
->subscription_event_queue
);
146 c
->subscription_event_last
= NULL
;
150 c
->disallow_module_loading
= 0;
152 c
->quit_event
= NULL
;
154 c
->exit_idle_time
= -1;
155 c
->module_idle_time
= 20;
156 c
->scache_idle_time
= 20;
158 c
->resample_method
= PA_RESAMPLER_SRC_SINC_FASTEST
;
160 c
->is_system_instance
= 0;
162 pa_hook_init(&c
->hook_sink_input_new
, c
);
163 pa_hook_init(&c
->hook_sink_disconnect
, c
);
164 pa_hook_init(&c
->hook_source_output_new
, c
);
165 pa_hook_init(&c
->hook_source_disconnect
, c
);
169 pa_random(&c
->cookie
, sizeof(c
->cookie
));
172 pa_check_signal_is_blocked(SIGPIPE
);
175 pa_assert_se(c
->asyncmsgq
= pa_asyncmsgq_new(0));
176 pa_assert_se(pa_asyncmsgq_before_poll(c
->asyncmsgq
) == 0);
177 pa_assert_se(c
->asyncmsgq_event
= c
->mainloop
->io_new(c
->mainloop
, pa_asyncmsgq_get_fd(c
->asyncmsgq
), PA_IO_EVENT_INPUT
, asyncmsgq_cb
, c
));
182 static void core_free(pa_object
*o
) {
183 pa_core
*c
= PA_CORE(o
);
184 pa_core_assert_ref(c
);
186 pa_module_unload_all(c
);
189 assert(pa_idxset_isempty(c
->clients
));
190 pa_idxset_free(c
->clients
, NULL
, NULL
);
192 assert(pa_idxset_isempty(c
->sinks
));
193 pa_idxset_free(c
->sinks
, NULL
, NULL
);
195 assert(pa_idxset_isempty(c
->sources
));
196 pa_idxset_free(c
->sources
, NULL
, NULL
);
198 assert(pa_idxset_isempty(c
->source_outputs
));
199 pa_idxset_free(c
->source_outputs
, NULL
, NULL
);
201 assert(pa_idxset_isempty(c
->sink_inputs
));
202 pa_idxset_free(c
->sink_inputs
, NULL
, NULL
);
207 pa_subscription_free_all(c
);
210 c
->mainloop
->time_free(c
->quit_event
);
212 pa_xfree(c
->default_source_name
);
213 pa_xfree(c
->default_sink_name
);
215 pa_mempool_free(c
->mempool
);
217 pa_property_cleanup(c
);
219 c
->mainloop
->io_free(c
->asyncmsgq_event
);
220 pa_asyncmsgq_after_poll(c
->asyncmsgq
);
221 pa_asyncmsgq_free(c
->asyncmsgq
);
223 pa_hook_free(&c
->hook_sink_input_new
);
224 pa_hook_free(&c
->hook_sink_disconnect
);
225 pa_hook_free(&c
->hook_source_output_new
);
226 pa_hook_free(&c
->hook_source_disconnect
);
231 static void quit_callback(pa_mainloop_api
*m
, pa_time_event
*e
, PA_GCC_UNUSED
const struct timeval
*tv
, void *userdata
) {
232 pa_core
*c
= userdata
;
233 assert(c
->quit_event
= e
);
238 void pa_core_check_quit(pa_core
*c
) {
241 if (!c
->quit_event
&& c
->exit_idle_time
>= 0 && pa_idxset_size(c
->clients
) == 0) {
243 pa_gettimeofday(&tv
);
244 tv
.tv_sec
+= c
->exit_idle_time
;
245 c
->quit_event
= c
->mainloop
->time_new(c
->mainloop
, &tv
, quit_callback
, c
);
246 } else if (c
->quit_event
&& pa_idxset_size(c
->clients
) > 0) {
247 c
->mainloop
->time_free(c
->quit_event
);
248 c
->quit_event
= NULL
;