code.delx.au - pulseaudio/blob - src/pulsecore/core.h

   1 #ifndef foocorehfoo
   2 #define foocorehfoo
   3
   4 /***
   5   This file is part of PulseAudio.
   6
   7   Copyright 2004-2006 Lennart Poettering
   8
   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.
  13
  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.
  18
  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
  22   USA.
  23 ***/
  24
  25 #include <pulse/mainloop-api.h>
  26 #include <pulse/sample.h>
  27
  28 typedef struct pa_core pa_core;
  29
  30 #include <pulsecore/idxset.h>
  31 #include <pulsecore/hashmap.h>
  32 #include <pulsecore/memblock.h>
  33 #include <pulsecore/resampler.h>
  34 #include <pulsecore/queue.h>
  35 #include <pulsecore/llist.h>
  36 #include <pulsecore/hook-list.h>
  37 #include <pulsecore/asyncmsgq.h>
  38 #include <pulsecore/sample-util.h>
  39 #include <pulsecore/sink.h>
  40 #include <pulsecore/source.h>
  41 #include <pulsecore/core-subscribe.h>
  42 #include <pulsecore/sink-input.h>
  43 #include <pulsecore/msgobject.h>
  44
  45 typedef enum pa_server_type {
  46     PA_SERVER_TYPE_UNSET,
  47     PA_SERVER_TYPE_USER,
  48     PA_SERVER_TYPE_SYSTEM,
  49     PA_SERVER_TYPE_NONE
  50 } pa_server_type_t;
  51
  52 typedef enum pa_core_state {
  53     PA_CORE_STARTUP,
  54     PA_CORE_RUNNING,
  55     PA_CORE_SHUTDOWN
  56 } pa_core_state_t;
  57
  58 typedef enum pa_core_hook {
  59     PA_CORE_HOOK_SINK_NEW,
  60     PA_CORE_HOOK_SINK_FIXATE,
  61     PA_CORE_HOOK_SINK_PUT,
  62     PA_CORE_HOOK_SINK_UNLINK,
  63     PA_CORE_HOOK_SINK_UNLINK_POST,
  64     PA_CORE_HOOK_SINK_STATE_CHANGED,
  65     PA_CORE_HOOK_SINK_PROPLIST_CHANGED,
  66     PA_CORE_HOOK_SOURCE_NEW,
  67     PA_CORE_HOOK_SOURCE_FIXATE,
  68     PA_CORE_HOOK_SOURCE_PUT,
  69     PA_CORE_HOOK_SOURCE_UNLINK,
  70     PA_CORE_HOOK_SOURCE_UNLINK_POST,
  71     PA_CORE_HOOK_SOURCE_STATE_CHANGED,
  72     PA_CORE_HOOK_SOURCE_PROPLIST_CHANGED,
  73     PA_CORE_HOOK_SINK_INPUT_NEW,
  74     PA_CORE_HOOK_SINK_INPUT_FIXATE,
  75     PA_CORE_HOOK_SINK_INPUT_PUT,
  76     PA_CORE_HOOK_SINK_INPUT_UNLINK,
  77     PA_CORE_HOOK_SINK_INPUT_UNLINK_POST,
  78     PA_CORE_HOOK_SINK_INPUT_MOVE_START,
  79     PA_CORE_HOOK_SINK_INPUT_MOVE_FINISH,
  80     PA_CORE_HOOK_SINK_INPUT_MOVE_FAIL,
  81     PA_CORE_HOOK_SINK_INPUT_STATE_CHANGED,
  82     PA_CORE_HOOK_SINK_INPUT_PROPLIST_CHANGED,
  83     PA_CORE_HOOK_SINK_INPUT_SET_VOLUME,
  84     PA_CORE_HOOK_SINK_INPUT_SEND_EVENT,
  85     PA_CORE_HOOK_SOURCE_OUTPUT_NEW,
  86     PA_CORE_HOOK_SOURCE_OUTPUT_FIXATE,
  87     PA_CORE_HOOK_SOURCE_OUTPUT_PUT,
  88     PA_CORE_HOOK_SOURCE_OUTPUT_UNLINK,
  89     PA_CORE_HOOK_SOURCE_OUTPUT_UNLINK_POST,
  90     PA_CORE_HOOK_SOURCE_OUTPUT_MOVE_START,
  91     PA_CORE_HOOK_SOURCE_OUTPUT_MOVE_FINISH,
  92     PA_CORE_HOOK_SOURCE_OUTPUT_MOVE_FAIL,
  93     PA_CORE_HOOK_SOURCE_OUTPUT_STATE_CHANGED,
  94     PA_CORE_HOOK_SOURCE_OUTPUT_PROPLIST_CHANGED,
  95     PA_CORE_HOOK_SOURCE_OUTPUT_SEND_EVENT,
  96     PA_CORE_HOOK_CLIENT_NEW,
  97     PA_CORE_HOOK_CLIENT_PUT,
  98     PA_CORE_HOOK_CLIENT_UNLINK,
  99     PA_CORE_HOOK_CLIENT_PROPLIST_CHANGED,
 100     PA_CORE_HOOK_CLIENT_SEND_EVENT,
 101     PA_CORE_HOOK_CARD_NEW,
 102     PA_CORE_HOOK_CARD_PUT,
 103     PA_CORE_HOOK_CARD_UNLINK,
 104     PA_CORE_HOOK_MAX
 105 } pa_core_hook_t;
 106
 107 /* The core structure of PulseAudio. Every PulseAudio daemon contains
 108  * exactly one of these. It is used for storing kind of global
 109  * variables for the daemon. */
 110
 111 struct pa_core {
 112     pa_msgobject parent;
 113
 114     pa_core_state_t state;
 115
 116     /* A random value which may be used to identify this instance of
 117      * PulseAudio. Not cryptographically secure in any way. */
 118     uint32_t cookie;
 119
 120     pa_mainloop_api *mainloop;
 121
 122     /* idxset of all kinds of entities */
 123     pa_idxset *clients, *cards, *sinks, *sources, *sink_inputs, *source_outputs, *modules, *scache;
 124
 125     /* Some hashmaps for all sorts of entities */
 126     pa_hashmap *namereg, *shared;
 127
 128     /* The default sink/source */
 129     pa_source *default_source;
 130     pa_sink *default_sink;
 131
 132     pa_channel_map default_channel_map;
 133     pa_sample_spec default_sample_spec;
 134     unsigned default_n_fragments, default_fragment_size_msec;
 135
 136     pa_defer_event *module_defer_unload_event;
 137
 138     pa_defer_event *subscription_defer_event;
 139     PA_LLIST_HEAD(pa_subscription, subscriptions);
 140     PA_LLIST_HEAD(pa_subscription_event, subscription_event_queue);
 141     pa_subscription_event *subscription_event_last;
 142
 143     pa_mempool *mempool;
 144     pa_silence_cache silence_cache;
 145
 146     pa_time_event *exit_event;
 147     pa_time_event *scache_auto_unload_event;
 148
 149     int exit_idle_time, scache_idle_time;
 150
 151     pa_bool_t flat_volumes:1;
 152     pa_bool_t disallow_module_loading:1;
 153     pa_bool_t disallow_exit:1;
 154     pa_bool_t running_as_daemon:1;
 155     pa_bool_t realtime_scheduling:1;
 156     pa_bool_t disable_remixing:1;
 157     pa_bool_t disable_lfe_remixing:1;
 158
 159     pa_resample_method_t resample_method;
 160     int realtime_priority;
 161
 162     pa_server_type_t server_type;
 163
 164     /* hooks */
 165     pa_hook hooks[PA_CORE_HOOK_MAX];
 166 };
 167
 168 PA_DECLARE_CLASS(pa_core);
 169 #define PA_CORE(o) pa_core_cast(o)
 170
 171 enum {
 172     PA_CORE_MESSAGE_UNLOAD_MODULE,
 173     PA_CORE_MESSAGE_MAX
 174 };
 175
 176 pa_core* pa_core_new(pa_mainloop_api *m, pa_bool_t shared, size_t shm_size);
 177
 178 /* Check whether noone is connected to this core */
 179 void pa_core_check_idle(pa_core *c);
 180
 181 int pa_core_exit(pa_core *c, pa_bool_t force, int retval);
 182
 183 void pa_core_maybe_vacuum(pa_core *c);
 184
 185 #endif