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
33 #include <pulse/timeval.h>
34 #include <pulse/xmalloc.h>
36 #include <pulsecore/module.h>
37 #include <pulsecore/sink.h>
38 #include <pulsecore/source.h>
39 #include <pulsecore/namereg.h>
40 #include <pulsecore/core-util.h>
41 #include <pulsecore/core-scache.h>
42 #include <pulsecore/autoload.h>
43 #include <pulsecore/core-subscribe.h>
44 #include <pulsecore/props.h>
45 #include <pulsecore/random.h>
46 #include <pulsecore/log.h>
47 #include <pulsecore/macro.h>
51 static PA_DEFINE_CHECK_TYPE(pa_core, pa_msgobject);
53 static int core_process_msg(pa_msgobject *o, int code, void *userdata, int64_t offset, pa_memchunk *chunk) {
54 pa_core *c = PA_CORE(o);
56 pa_core_assert_ref(c);
60 case PA_CORE_MESSAGE_UNLOAD_MODULE:
61 pa_module_unload(c, userdata);
69 static void core_free(pa_object *o);
71 pa_core* pa_core_new(pa_mainloop_api *m, int shared) {
79 if (!(pool = pa_mempool_new(shared))) {
80 pa_log_warn("failed to allocate shared memory pool. Falling back to a normal memory pool.");
86 if (!(pool = pa_mempool_new(shared))) {
87 pa_log("pa_mempool_new() failed.");
92 c = pa_msgobject_new(pa_core);
93 c->parent.parent.free = core_free;
94 c->parent.process_msg = core_process_msg;
97 c->clients = pa_idxset_new(NULL, NULL);
98 c->sinks = pa_idxset_new(NULL, NULL);
99 c->sources = pa_idxset_new(NULL, NULL);
100 c->source_outputs = pa_idxset_new(NULL, NULL);
101 c->sink_inputs = pa_idxset_new(NULL, NULL);
103 c->default_source_name = c->default_sink_name = NULL;
108 c->autoload_idxset = NULL;
109 c->autoload_hashmap = NULL;
110 c->running_as_daemon = FALSE;
112 c->default_sample_spec.format = PA_SAMPLE_S16NE;
113 c->default_sample_spec.rate = 44100;
114 c->default_sample_spec.channels = 2;
115 c->default_n_fragments = 4;
116 c->default_fragment_size_msec = 25;
118 c->module_auto_unload_event = NULL;
119 c->module_defer_unload_event = NULL;
120 c->scache_auto_unload_event = NULL;
122 c->subscription_defer_event = NULL;
123 PA_LLIST_HEAD_INIT(pa_subscription, c->subscriptions);
124 PA_LLIST_HEAD_INIT(pa_subscription_event, c->subscription_event_queue);
125 c->subscription_event_last = NULL;
128 pa_silence_cache_init(&c->silence_cache);
130 c->quit_event = NULL;
132 c->exit_idle_time = -1;
133 c->module_idle_time = 20;
134 c->scache_idle_time = 20;
136 c->resample_method = PA_RESAMPLER_SPEEX_FLOAT_BASE + 3;
138 c->is_system_instance = FALSE;
139 c->disallow_module_loading = FALSE;
140 c->realtime_scheduling = FALSE;
141 c->realtime_priority = 5;
142 c->disable_remixing = FALSE;
144 for (j = 0; j < PA_CORE_HOOK_MAX; j++)
145 pa_hook_init(&c->hooks[j], c);
149 pa_random(&c->cookie, sizeof(c->cookie));
152 pa_check_signal_is_blocked(SIGPIPE);
158 static void core_free(pa_object *o) {
159 pa_core *c = PA_CORE(o);
163 pa_module_unload_all(c);
164 pa_assert(!c->modules);
166 pa_assert(pa_idxset_isempty(c->clients));
167 pa_idxset_free(c->clients, NULL, NULL);
169 pa_assert(pa_idxset_isempty(c->sinks));
170 pa_idxset_free(c->sinks, NULL, NULL);
172 pa_assert(pa_idxset_isempty(c->sources));
173 pa_idxset_free(c->sources, NULL, NULL);
175 pa_assert(pa_idxset_isempty(c->source_outputs));
176 pa_idxset_free(c->source_outputs, NULL, NULL);
178 pa_assert(pa_idxset_isempty(c->sink_inputs));
179 pa_idxset_free(c->sink_inputs, NULL, NULL);
184 pa_subscription_free_all(c);
187 c->mainloop->time_free(c->quit_event);
189 pa_xfree(c->default_source_name);
190 pa_xfree(c->default_sink_name);
192 pa_silence_cache_done(&c->silence_cache);
193 pa_mempool_free(c->mempool);
195 pa_property_cleanup(c);
197 for (j = 0; j < PA_CORE_HOOK_MAX; j++)
198 pa_hook_free(&c->hooks[j]);
203 static void quit_callback(pa_mainloop_api*m, pa_time_event *e, PA_GCC_UNUSED const struct timeval *tv, void *userdata) {
204 pa_core *c = userdata;
205 pa_assert(c->quit_event == e);
210 void pa_core_check_quit(pa_core *c) {
213 if (!c->quit_event && c->exit_idle_time >= 0 && pa_idxset_size(c->clients) == 0) {
215 pa_gettimeofday(&tv);
216 tv.tv_sec+= c->exit_idle_time;
217 c->quit_event = c->mainloop->time_new(c->mainloop, &tv, quit_callback, c);
218 } else if (c->quit_event && pa_idxset_size(c->clients) > 0) {
219 c->mainloop->time_free(c->quit_event);
220 c->quit_event = NULL;