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 /* This is a bitmask that encodes the cause why a sink/source is
  31  * suspended. */
  32 typedef enum pa_suspend_cause {
  33     PA_SUSPEND_USER = 1,         /* Exposed to the user via some protocol */
  34     PA_SUSPEND_APPLICATION = 2,  /* Used by the device reservation logic */
  35     PA_SUSPEND_IDLE = 4,         /* Used by module-suspend-on-idle */
  36     PA_SUSPEND_SESSION = 8,      /* Used by module-hal for mark inactive sessions */
  37     PA_SUSPEND_ALL = 0xFFFF      /* Magic cause that can be used to resume forcibly */
  38 } pa_suspend_cause_t;
  39
  40 #include <pulsecore/idxset.h>
  41 #include <pulsecore/hashmap.h>
  42 #include <pulsecore/memblock.h>
  43 #include <pulsecore/resampler.h>
  44 #include <pulsecore/queue.h>
  45 #include <pulsecore/llist.h>
  46 #include <pulsecore/hook-list.h>
  47 #include <pulsecore/asyncmsgq.h>
  48 #include <pulsecore/sample-util.h>
  49 #include <pulsecore/sink.h>
  50 #include <pulsecore/source.h>
  51 #include <pulsecore/core-subscribe.h>
  52 #include <pulsecore/sink-input.h>
  53 #include <pulsecore/msgobject.h>
  54
  55 typedef enum pa_server_type {
  56     PA_SERVER_TYPE_UNSET,
  57     PA_SERVER_TYPE_USER,
  58     PA_SERVER_TYPE_SYSTEM,
  59     PA_SERVER_TYPE_NONE
  60 } pa_server_type_t;
  61
  62 typedef enum pa_core_state {
  63     PA_CORE_STARTUP,
  64     PA_CORE_RUNNING,
  65     PA_CORE_SHUTDOWN
  66 } pa_core_state_t;
  67
  68 typedef enum pa_core_hook {
  69     PA_CORE_HOOK_SINK_NEW,
  70     PA_CORE_HOOK_SINK_FIXATE,
  71     PA_CORE_HOOK_SINK_PUT,
  72     PA_CORE_HOOK_SINK_UNLINK,
  73     PA_CORE_HOOK_SINK_UNLINK_POST,
  74     PA_CORE_HOOK_SINK_STATE_CHANGED,
  75     PA_CORE_HOOK_SINK_PROPLIST_CHANGED,
  76     PA_CORE_HOOK_SOURCE_NEW,
  77     PA_CORE_HOOK_SOURCE_FIXATE,
  78     PA_CORE_HOOK_SOURCE_PUT,
  79     PA_CORE_HOOK_SOURCE_UNLINK,
  80     PA_CORE_HOOK_SOURCE_UNLINK_POST,
  81     PA_CORE_HOOK_SOURCE_STATE_CHANGED,
  82     PA_CORE_HOOK_SOURCE_PROPLIST_CHANGED,
  83     PA_CORE_HOOK_SINK_INPUT_NEW,
  84     PA_CORE_HOOK_SINK_INPUT_FIXATE,
  85     PA_CORE_HOOK_SINK_INPUT_PUT,
  86     PA_CORE_HOOK_SINK_INPUT_UNLINK,
  87     PA_CORE_HOOK_SINK_INPUT_UNLINK_POST,
  88     PA_CORE_HOOK_SINK_INPUT_MOVE_START,
  89     PA_CORE_HOOK_SINK_INPUT_MOVE_FINISH,
  90     PA_CORE_HOOK_SINK_INPUT_MOVE_FAIL,
  91     PA_CORE_HOOK_SINK_INPUT_STATE_CHANGED,
  92     PA_CORE_HOOK_SINK_INPUT_PROPLIST_CHANGED,
  93     PA_CORE_HOOK_SINK_INPUT_SET_VOLUME,
  94     PA_CORE_HOOK_SINK_INPUT_SEND_EVENT,
  95     PA_CORE_HOOK_SOURCE_OUTPUT_NEW,
  96     PA_CORE_HOOK_SOURCE_OUTPUT_FIXATE,
  97     PA_CORE_HOOK_SOURCE_OUTPUT_PUT,
  98     PA_CORE_HOOK_SOURCE_OUTPUT_UNLINK,
  99     PA_CORE_HOOK_SOURCE_OUTPUT_UNLINK_POST,
 100     PA_CORE_HOOK_SOURCE_OUTPUT_MOVE_START,
 101     PA_CORE_HOOK_SOURCE_OUTPUT_MOVE_FINISH,
 102     PA_CORE_HOOK_SOURCE_OUTPUT_MOVE_FAIL,
 103     PA_CORE_HOOK_SOURCE_OUTPUT_STATE_CHANGED,
 104     PA_CORE_HOOK_SOURCE_OUTPUT_PROPLIST_CHANGED,
 105     PA_CORE_HOOK_SOURCE_OUTPUT_SEND_EVENT,
 106     PA_CORE_HOOK_CLIENT_NEW,
 107     PA_CORE_HOOK_CLIENT_PUT,
 108     PA_CORE_HOOK_CLIENT_UNLINK,
 109     PA_CORE_HOOK_CLIENT_PROPLIST_CHANGED,
 110     PA_CORE_HOOK_CLIENT_SEND_EVENT,
 111     PA_CORE_HOOK_CARD_NEW,
 112     PA_CORE_HOOK_CARD_PUT,
 113     PA_CORE_HOOK_CARD_UNLINK,
 114     PA_CORE_HOOK_MAX
 115 } pa_core_hook_t;
 116
 117 /* The core structure of PulseAudio. Every PulseAudio daemon contains
 118  * exactly one of these. It is used for storing kind of global
 119  * variables for the daemon. */
 120
 121 struct pa_core {
 122     pa_msgobject parent;
 123
 124     pa_core_state_t state;
 125
 126     /* A random value which may be used to identify this instance of
 127      * PulseAudio. Not cryptographically secure in any way. */
 128     uint32_t cookie;
 129
 130     pa_mainloop_api *mainloop;
 131
 132     /* idxset of all kinds of entities */
 133     pa_idxset *clients, *cards, *sinks, *sources, *sink_inputs, *source_outputs, *modules, *scache;
 134
 135     /* Some hashmaps for all sorts of entities */
 136     pa_hashmap *namereg, *shared;
 137
 138     /* The default sink/source */
 139     pa_source *default_source;
 140     pa_sink *default_sink;
 141
 142     pa_channel_map default_channel_map;
 143     pa_sample_spec default_sample_spec;
 144     unsigned default_n_fragments, default_fragment_size_msec;
 145
 146     pa_defer_event *module_defer_unload_event;
 147
 148     pa_defer_event *subscription_defer_event;
 149     PA_LLIST_HEAD(pa_subscription, subscriptions);
 150     PA_LLIST_HEAD(pa_subscription_event, subscription_event_queue);
 151     pa_subscription_event *subscription_event_last;
 152
 153     pa_mempool *mempool;
 154     pa_silence_cache silence_cache;
 155
 156     pa_time_event *exit_event;
 157     pa_time_event *scache_auto_unload_event;
 158
 159     int exit_idle_time, scache_idle_time;
 160
 161     pa_bool_t flat_volumes:1;
 162     pa_bool_t disallow_module_loading:1;
 163     pa_bool_t disallow_exit:1;
 164     pa_bool_t running_as_daemon:1;
 165     pa_bool_t realtime_scheduling:1;
 166     pa_bool_t disable_remixing:1;
 167     pa_bool_t disable_lfe_remixing:1;
 168
 169     pa_resample_method_t resample_method;
 170     int realtime_priority;
 171
 172     pa_server_type_t server_type;
 173
 174     /* hooks */
 175     pa_hook hooks[PA_CORE_HOOK_MAX];
 176 };
 177
 178 PA_DECLARE_CLASS(pa_core);
 179 #define PA_CORE(o) pa_core_cast(o)
 180
 181 enum {
 182     PA_CORE_MESSAGE_UNLOAD_MODULE,
 183     PA_CORE_MESSAGE_MAX
 184 };
 185
 186 pa_core* pa_core_new(pa_mainloop_api *m, pa_bool_t shared, size_t shm_size);
 187
 188 /* Check whether noone is connected to this core */
 189 void pa_core_check_idle(pa_core *c);
 190
 191 int pa_core_exit(pa_core *c, pa_bool_t force, int retval);
 192
 193 void pa_core_maybe_vacuum(pa_core *c);
 194
 195 /* wrapper for c->mainloop->time_*() RT time events */
 196 pa_time_event* pa_core_rttime_new(pa_core *c, pa_usec_t usec, pa_time_event_cb_t cb, void *userdata);
 197 void pa_core_rttime_restart(pa_core *c, pa_time_event *e, pa_usec_t usec);
 198
 199 #endif