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_MUTE_CHANGED
,
104 PA_CORE_HOOK_SINK_INPUT_SEND_EVENT
,
105 PA_CORE_HOOK_SOURCE_OUTPUT_NEW
,
106 PA_CORE_HOOK_SOURCE_OUTPUT_FIXATE
,
107 PA_CORE_HOOK_SOURCE_OUTPUT_PUT
,
108 PA_CORE_HOOK_SOURCE_OUTPUT_UNLINK
,
109 PA_CORE_HOOK_SOURCE_OUTPUT_UNLINK_POST
,
110 PA_CORE_HOOK_SOURCE_OUTPUT_MOVE_START
,
111 PA_CORE_HOOK_SOURCE_OUTPUT_MOVE_FINISH
,
112 PA_CORE_HOOK_SOURCE_OUTPUT_MOVE_FAIL
,
113 PA_CORE_HOOK_SOURCE_OUTPUT_STATE_CHANGED
,
114 PA_CORE_HOOK_SOURCE_OUTPUT_PROPLIST_CHANGED
,
115 PA_CORE_HOOK_SOURCE_OUTPUT_VOLUME_CHANGED
,
116 PA_CORE_HOOK_SOURCE_OUTPUT_MUTE_CHANGED
,
117 PA_CORE_HOOK_SOURCE_OUTPUT_SEND_EVENT
,
118 PA_CORE_HOOK_CLIENT_NEW
,
119 PA_CORE_HOOK_CLIENT_PUT
,
120 PA_CORE_HOOK_CLIENT_UNLINK
,
121 PA_CORE_HOOK_CLIENT_PROPLIST_CHANGED
,
122 PA_CORE_HOOK_CLIENT_SEND_EVENT
,
123 PA_CORE_HOOK_CARD_NEW
,
124 PA_CORE_HOOK_CARD_PUT
,
125 PA_CORE_HOOK_CARD_UNLINK
,
126 PA_CORE_HOOK_CARD_PROFILE_CHANGED
,
127 PA_CORE_HOOK_CARD_PROFILE_ADDED
,
128 PA_CORE_HOOK_CARD_PROFILE_AVAILABLE_CHANGED
,
129 PA_CORE_HOOK_PORT_AVAILABLE_CHANGED
,
130 PA_CORE_HOOK_PORT_LATENCY_OFFSET_CHANGED
,
134 /* The core structure of PulseAudio. Every PulseAudio daemon contains
135 * exactly one of these. It is used for storing kind of global
136 * variables for the daemon. */
141 pa_core_state_t state
;
143 /* A random value which may be used to identify this instance of
144 * PulseAudio. Not cryptographically secure in any way. */
147 pa_mainloop_api
*mainloop
;
149 /* idxset of all kinds of entities */
150 pa_idxset
*clients
, *cards
, *sinks
, *sources
, *sink_inputs
, *source_outputs
, *modules
, *scache
;
152 /* Some hashmaps for all sorts of entities */
153 pa_hashmap
*namereg
, *shared
;
155 /* The default sink/source */
156 pa_source
*default_source
;
157 pa_sink
*default_sink
;
159 pa_channel_map default_channel_map
;
160 pa_sample_spec default_sample_spec
;
161 uint32_t alternate_sample_rate
;
162 unsigned default_n_fragments
, default_fragment_size_msec
;
163 unsigned deferred_volume_safety_margin_usec
;
164 int deferred_volume_extra_delay_usec
;
166 pa_defer_event
*module_defer_unload_event
;
168 pa_defer_event
*subscription_defer_event
;
169 PA_LLIST_HEAD(pa_subscription
, subscriptions
);
170 PA_LLIST_HEAD(pa_subscription_event
, subscription_event_queue
);
171 pa_subscription_event
*subscription_event_last
;
174 pa_silence_cache silence_cache
;
176 pa_time_event
*exit_event
;
177 pa_time_event
*scache_auto_unload_event
;
179 int exit_idle_time
, scache_idle_time
;
182 bool disallow_module_loading
:1;
183 bool disallow_exit
:1;
184 bool running_as_daemon
:1;
185 bool realtime_scheduling
:1;
186 bool disable_remixing
:1;
187 bool disable_lfe_remixing
:1;
188 bool deferred_volume
:1;
190 pa_resample_method_t resample_method
;
191 int realtime_priority
;
193 pa_server_type_t server_type
;
194 pa_cpu_info cpu_info
;
197 pa_hook hooks
[PA_CORE_HOOK_MAX
];
200 PA_DECLARE_PUBLIC_CLASS(pa_core
);
201 #define PA_CORE(o) pa_core_cast(o)
204 PA_CORE_MESSAGE_UNLOAD_MODULE
,
208 pa_core
* pa_core_new(pa_mainloop_api
*m
, bool shared
, size_t shm_size
);
210 /* Check whether no one is connected to this core */
211 void pa_core_check_idle(pa_core
*c
);
213 int pa_core_exit(pa_core
*c
, bool force
, int retval
);
215 void pa_core_maybe_vacuum(pa_core
*c
);
217 /* wrapper for c->mainloop->time_*() RT time events */
218 pa_time_event
* pa_core_rttime_new(pa_core
*c
, pa_usec_t usec
, pa_time_event_cb_t cb
, void *userdata
);
219 void pa_core_rttime_restart(pa_core
*c
, pa_time_event
*e
, pa_usec_t usec
);