5 This file is part of PulseAudio.
7 Copyright 2004-2006 Lennart Poettering
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 2.1 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
25 #include <pulse/mainloop-api.h>
26 #include <pulse/sample.h>
27 #include <pulsecore/cpu.h>
29 typedef struct pa_core pa_core;
31 /* This is a bitmask that encodes the cause why a sink/source is
33 typedef enum pa_suspend_cause {
34 PA_SUSPEND_USER = 1, /* Exposed to the user via some protocol */
35 PA_SUSPEND_APPLICATION = 2, /* Used by the device reservation logic */
36 PA_SUSPEND_IDLE = 4, /* Used by module-suspend-on-idle */
37 PA_SUSPEND_SESSION = 8, /* Used by module-hal for mark inactive sessions */
38 PA_SUSPEND_PASSTHROUGH = 16, /* Used to suspend monitor sources when the sink is in passthrough mode */
39 PA_SUSPEND_INTERNAL = 32, /* This is used for short period server-internal suspends, such as for sample rate updates */
40 PA_SUSPEND_ALL = 0xFFFF /* Magic cause that can be used to resume forcibly */
43 #include <pulsecore/idxset.h>
44 #include <pulsecore/hashmap.h>
45 #include <pulsecore/memblock.h>
46 #include <pulsecore/resampler.h>
47 #include <pulsecore/llist.h>
48 #include <pulsecore/hook-list.h>
49 #include <pulsecore/asyncmsgq.h>
50 #include <pulsecore/sample-util.h>
51 #include <pulsecore/sink.h>
52 #include <pulsecore/source.h>
53 #include <pulsecore/core-subscribe.h>
54 #include <pulsecore/msgobject.h>
56 typedef enum pa_server_type {
59 PA_SERVER_TYPE_SYSTEM,
63 typedef enum pa_core_state {
69 typedef enum pa_core_hook {
70 PA_CORE_HOOK_SINK_NEW,
71 PA_CORE_HOOK_SINK_FIXATE,
72 PA_CORE_HOOK_SINK_PUT,
73 PA_CORE_HOOK_SINK_UNLINK,
74 PA_CORE_HOOK_SINK_UNLINK_POST,
75 PA_CORE_HOOK_SINK_STATE_CHANGED,
76 PA_CORE_HOOK_SINK_PROPLIST_CHANGED,
77 PA_CORE_HOOK_SINK_PORT_CHANGED,
78 PA_CORE_HOOK_SINK_FLAGS_CHANGED,
79 PA_CORE_HOOK_SINK_VOLUME_CHANGED,
80 PA_CORE_HOOK_SINK_MUTE_CHANGED,
81 PA_CORE_HOOK_SOURCE_NEW,
82 PA_CORE_HOOK_SOURCE_FIXATE,
83 PA_CORE_HOOK_SOURCE_PUT,
84 PA_CORE_HOOK_SOURCE_UNLINK,
85 PA_CORE_HOOK_SOURCE_UNLINK_POST,
86 PA_CORE_HOOK_SOURCE_STATE_CHANGED,
87 PA_CORE_HOOK_SOURCE_PROPLIST_CHANGED,
88 PA_CORE_HOOK_SOURCE_PORT_CHANGED,
89 PA_CORE_HOOK_SOURCE_FLAGS_CHANGED,
90 PA_CORE_HOOK_SOURCE_VOLUME_CHANGED,
91 PA_CORE_HOOK_SOURCE_MUTE_CHANGED,
92 PA_CORE_HOOK_SINK_INPUT_NEW,
93 PA_CORE_HOOK_SINK_INPUT_FIXATE,
94 PA_CORE_HOOK_SINK_INPUT_PUT,
95 PA_CORE_HOOK_SINK_INPUT_UNLINK,
96 PA_CORE_HOOK_SINK_INPUT_UNLINK_POST,
97 PA_CORE_HOOK_SINK_INPUT_MOVE_START,
98 PA_CORE_HOOK_SINK_INPUT_MOVE_FINISH,
99 PA_CORE_HOOK_SINK_INPUT_MOVE_FAIL,
100 PA_CORE_HOOK_SINK_INPUT_STATE_CHANGED,
101 PA_CORE_HOOK_SINK_INPUT_PROPLIST_CHANGED,
102 PA_CORE_HOOK_SINK_INPUT_VOLUME_CHANGED,
103 PA_CORE_HOOK_SINK_INPUT_REFERENCE_RATIO_CHANGED,
104 PA_CORE_HOOK_SINK_INPUT_MUTE_CHANGED,
105 PA_CORE_HOOK_SINK_INPUT_SEND_EVENT,
106 PA_CORE_HOOK_SOURCE_OUTPUT_NEW,
107 PA_CORE_HOOK_SOURCE_OUTPUT_FIXATE,
108 PA_CORE_HOOK_SOURCE_OUTPUT_PUT,
109 PA_CORE_HOOK_SOURCE_OUTPUT_UNLINK,
110 PA_CORE_HOOK_SOURCE_OUTPUT_UNLINK_POST,
111 PA_CORE_HOOK_SOURCE_OUTPUT_MOVE_START,
112 PA_CORE_HOOK_SOURCE_OUTPUT_MOVE_FINISH,
113 PA_CORE_HOOK_SOURCE_OUTPUT_MOVE_FAIL,
114 PA_CORE_HOOK_SOURCE_OUTPUT_STATE_CHANGED,
115 PA_CORE_HOOK_SOURCE_OUTPUT_PROPLIST_CHANGED,
116 PA_CORE_HOOK_SOURCE_OUTPUT_VOLUME_CHANGED,
117 PA_CORE_HOOK_SOURCE_OUTPUT_REFERENCE_RATIO_CHANGED,
118 PA_CORE_HOOK_SOURCE_OUTPUT_MUTE_CHANGED,
119 PA_CORE_HOOK_SOURCE_OUTPUT_SEND_EVENT,
120 PA_CORE_HOOK_CLIENT_NEW,
121 PA_CORE_HOOK_CLIENT_PUT,
122 PA_CORE_HOOK_CLIENT_UNLINK,
123 PA_CORE_HOOK_CLIENT_PROPLIST_CHANGED,
124 PA_CORE_HOOK_CLIENT_SEND_EVENT,
125 PA_CORE_HOOK_CARD_NEW,
126 PA_CORE_HOOK_CARD_PUT,
127 PA_CORE_HOOK_CARD_UNLINK,
128 PA_CORE_HOOK_CARD_PROFILE_CHANGED,
129 PA_CORE_HOOK_CARD_PROFILE_ADDED,
130 PA_CORE_HOOK_CARD_PROFILE_AVAILABLE_CHANGED,
131 PA_CORE_HOOK_PORT_AVAILABLE_CHANGED,
132 PA_CORE_HOOK_PORT_ACTIVE_CHANGED,
133 PA_CORE_HOOK_PORT_LATENCY_OFFSET_CHANGED,
134 PA_CORE_HOOK_MODULE_UNLOAD,
138 /* The core structure of PulseAudio. Every PulseAudio daemon contains
139 * exactly one of these. It is used for storing kind of global
140 * variables for the daemon. */
145 pa_core_state_t state;
147 /* A random value which may be used to identify this instance of
148 * PulseAudio. Not cryptographically secure in any way. */
151 pa_mainloop_api *mainloop;
153 /* idxset of all kinds of entities */
154 pa_idxset *clients, *cards, *sinks, *sources, *sink_inputs, *source_outputs, *modules, *scache;
156 /* Some hashmaps for all sorts of entities */
157 pa_hashmap *namereg, *shared;
159 /* The default sink/source */
160 pa_source *default_source;
161 pa_sink *default_sink;
163 pa_channel_map default_channel_map;
164 pa_sample_spec default_sample_spec;
165 uint32_t alternate_sample_rate;
166 unsigned default_n_fragments, default_fragment_size_msec;
167 unsigned deferred_volume_safety_margin_usec;
168 int deferred_volume_extra_delay_usec;
170 pa_defer_event *module_defer_unload_event;
172 pa_defer_event *subscription_defer_event;
173 PA_LLIST_HEAD(pa_subscription, subscriptions);
174 PA_LLIST_HEAD(pa_subscription_event, subscription_event_queue);
175 pa_subscription_event *subscription_event_last;
178 pa_silence_cache silence_cache;
180 pa_time_event *exit_event;
181 pa_time_event *scache_auto_unload_event;
183 int exit_idle_time, scache_idle_time;
186 bool disallow_module_loading:1;
187 bool disallow_exit:1;
188 bool running_as_daemon:1;
189 bool realtime_scheduling:1;
190 bool disable_remixing:1;
191 bool disable_lfe_remixing:1;
192 bool deferred_volume:1;
194 pa_resample_method_t resample_method;
195 int realtime_priority;
197 pa_server_type_t server_type;
198 pa_cpu_info cpu_info;
201 pa_hook hooks[PA_CORE_HOOK_MAX];
205 bool dump_sink_input;
207 bool dump_source_output;
209 int zero_pop_threshold;
213 PA_DECLARE_PUBLIC_CLASS(pa_core);
214 #define PA_CORE(o) pa_core_cast(o)
217 PA_CORE_MESSAGE_UNLOAD_MODULE,
221 pa_core* pa_core_new(pa_mainloop_api *m, bool shared, size_t shm_size);
223 /* Check whether no one is connected to this core */
224 void pa_core_check_idle(pa_core *c);
226 int pa_core_exit(pa_core *c, bool force, int retval);
228 void pa_core_maybe_vacuum(pa_core *c);
230 /* wrapper for c->mainloop->time_*() RT time events */
231 pa_time_event* pa_core_rttime_new(pa_core *c, pa_usec_t usec, pa_time_event_cb_t cb, void *userdata);
232 void pa_core_rttime_restart(pa_core *c, pa_time_event *e, pa_usec_t usec);