code.delx.au - pulseaudio/blob - src/modules/module-suspend-on-idle.c

   1 /***
   2   This file is part of PulseAudio.
   3
   4   Copyright 2006 Lennart Poettering
   5
   6   PulseAudio is free software; you can redistribute it and/or modify
   7   it under the terms of the GNU Lesser General Public License as published
   8   by the Free Software Foundation; either version 2.1 of the License,
   9   or (at your option) any later version.
  10
  11   PulseAudio is distributed in the hope that it will be useful, but
  12   WITHOUT ANY WARRANTY; without even the implied warranty of
  13   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  14   General Public License for more details.
  15
  16   You should have received a copy of the GNU Lesser General Public License
  17   along with PulseAudio; if not, write to the Free Software
  18   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
  19   USA.
  20 ***/
  21
  22 #ifdef HAVE_CONFIG_H
  23 #include <config.h>
  24 #endif
  25
  26 #include <pulse/xmalloc.h>
  27 #include <pulse/timeval.h>
  28
  29 #include <pulsecore/core.h>
  30 #include <pulsecore/sink-input.h>
  31 #include <pulsecore/source-output.h>
  32 #include <pulsecore/modargs.h>
  33 #include <pulsecore/log.h>
  34 #include <pulsecore/namereg.h>
  35
  36 #include "module-suspend-on-idle-symdef.h"
  37
  38 PA_MODULE_AUTHOR("Lennart Poettering");
  39 PA_MODULE_DESCRIPTION("When a sink/source is idle for too long, suspend it");
  40 PA_MODULE_VERSION(PACKAGE_VERSION);
  41 PA_MODULE_LOAD_ONCE(TRUE);
  42
  43 static const char* const valid_modargs[] = {
  44     "timeout",
  45     NULL,
  46 };
  47
  48 struct userdata {
  49     pa_core *core;
  50     pa_usec_t timeout;
  51     pa_hashmap *device_infos;
  52     pa_hook_slot
  53         *sink_new_slot,
  54         *source_new_slot,
  55         *sink_unlink_slot,
  56         *source_unlink_slot,
  57         *sink_state_changed_slot,
  58         *source_state_changed_slot;
  59
  60     pa_hook_slot
  61         *sink_input_new_slot,
  62         *source_output_new_slot,
  63         *sink_input_unlink_slot,
  64         *source_output_unlink_slot,
  65         *sink_input_move_start_slot,
  66         *source_output_move_start_slot,
  67         *sink_input_move_finish_slot,
  68         *source_output_move_finish_slot,
  69         *sink_input_state_changed_slot,
  70         *source_output_state_changed_slot;
  71 };
  72
  73 struct device_info {
  74     struct userdata *userdata;
  75     pa_sink *sink;
  76     pa_source *source;
  77     struct timeval last_use;
  78     pa_time_event *time_event;
  79 };
  80
  81 static void timeout_cb(pa_mainloop_api*a, pa_time_event* e, const struct timeval *tv, void *userdata) {
  82     struct device_info *d = userdata;
  83
  84     pa_assert(d);
  85
  86     d->userdata->core->mainloop->time_restart(d->time_event, NULL);
  87
  88     if (d->sink && pa_sink_check_suspend(d->sink) <= 0 && pa_sink_get_state(d->sink) != PA_SINK_SUSPENDED) {
  89         pa_log_info("Sink %s idle for too long, suspending ...", d->sink->name);
  90         pa_sink_suspend(d->sink, TRUE);
  91     }
  92
  93     if (d->source && pa_source_check_suspend(d->source) <= 0 && pa_source_get_state(d->source) != PA_SOURCE_SUSPENDED) {
  94         pa_log_info("Source %s idle for too long, suspending ...", d->source->name);
  95         pa_source_suspend(d->source, TRUE);
  96     }
  97 }
  98
  99 static void restart(struct device_info *d) {
 100     struct timeval tv;
 101     pa_assert(d);
 102
 103     pa_gettimeofday(&tv);
 104     d->last_use = tv;
 105     pa_timeval_add(&tv, d->userdata->timeout*1000000);
 106     d->userdata->core->mainloop->time_restart(d->time_event, &tv);
 107
 108     if (d->sink)
 109         pa_log_debug("Sink %s becomes idle.", d->sink->name);
 110     if (d->source)
 111         pa_log_debug("Source %s becomes idle.", d->source->name);
 112 }
 113
 114 static void resume(struct device_info *d) {
 115     pa_assert(d);
 116
 117     d->userdata->core->mainloop->time_restart(d->time_event, NULL);
 118
 119     if (d->sink) {
 120         pa_sink_suspend(d->sink, FALSE);
 121
 122         pa_log_debug("Sink %s becomes busy.", d->sink->name);
 123     }
 124
 125     if (d->source) {
 126         pa_source_suspend(d->source, FALSE);
 127
 128         pa_log_debug("Source %s becomes busy.", d->source->name);
 129     }
 130 }
 131
 132 static pa_hook_result_t sink_input_fixate_hook_cb(pa_core *c, pa_sink_input_new_data *data, struct userdata *u) {
 133     struct device_info *d;
 134
 135     pa_assert(c);
 136     pa_assert(data);
 137     pa_assert(u);
 138
 139     if ((d = pa_hashmap_get(u->device_infos, data->sink)))
 140         resume(d);
 141
 142     return PA_HOOK_OK;
 143 }
 144
 145 static pa_hook_result_t source_output_fixate_hook_cb(pa_core *c, pa_source_output_new_data *data, struct userdata *u) {
 146     struct device_info *d;
 147
 148     pa_assert(c);
 149     pa_assert(data);
 150     pa_assert(u);
 151
 152     if (data->source->monitor_of)
 153         d = pa_hashmap_get(u->device_infos, data->source->monitor_of);
 154     else
 155         d = pa_hashmap_get(u->device_infos, data->source);
 156
 157     if (d)
 158         resume(d);
 159
 160     return PA_HOOK_OK;
 161 }
 162
 163 static pa_hook_result_t sink_input_unlink_hook_cb(pa_core *c, pa_sink_input *s, struct userdata *u) {
 164     pa_assert(c);
 165     pa_sink_input_assert_ref(s);
 166     pa_assert(u);
 167
 168     if (!s->sink)
 169         return PA_HOOK_OK;
 170
 171     if (pa_sink_check_suspend(s->sink) <= 0) {
 172         struct device_info *d;
 173         if ((d = pa_hashmap_get(u->device_infos, s->sink)))
 174             restart(d);
 175     }
 176
 177     return PA_HOOK_OK;
 178 }
 179
 180 static pa_hook_result_t source_output_unlink_hook_cb(pa_core *c, pa_source_output *s, struct userdata *u) {
 181     struct device_info *d = NULL;
 182
 183     pa_assert(c);
 184     pa_source_output_assert_ref(s);
 185     pa_assert(u);
 186
 187     if (!s->source)
 188         return PA_HOOK_OK;
 189
 190     if (s->source->monitor_of) {
 191         if (pa_sink_check_suspend(s->source->monitor_of) <= 0)
 192             d = pa_hashmap_get(u->device_infos, s->source->monitor_of);
 193     } else {
 194         if (pa_source_check_suspend(s->source) <= 0)
 195             d = pa_hashmap_get(u->device_infos, s->source);
 196     }
 197
 198     if (d)
 199         restart(d);
 200
 201     return PA_HOOK_OK;
 202 }
 203
 204 static pa_hook_result_t sink_input_move_start_hook_cb(pa_core *c, pa_sink_input *s, struct userdata *u) {
 205     struct device_info *d;
 206
 207     pa_assert(c);
 208     pa_sink_input_assert_ref(s);
 209     pa_assert(u);
 210
 211     if (pa_sink_check_suspend(s->sink) <= 1)
 212         if ((d = pa_hashmap_get(u->device_infos, s->sink)))
 213             restart(d);
 214
 215     return PA_HOOK_OK;
 216 }
 217
 218 static pa_hook_result_t sink_input_move_finish_hook_cb(pa_core *c, pa_sink_input *s, struct userdata *u) {
 219     struct device_info *d;
 220
 221     pa_assert(c);
 222     pa_sink_input_assert_ref(s);
 223     pa_assert(u);
 224
 225     if ((d = pa_hashmap_get(u->device_infos, s->sink)))
 226         resume(d);
 227
 228     return PA_HOOK_OK;
 229 }
 230
 231 static pa_hook_result_t source_output_move_start_hook_cb(pa_core *c, pa_source_output *s, struct userdata *u) {
 232     struct device_info *d = NULL;
 233
 234     pa_assert(c);
 235     pa_source_output_assert_ref(s);
 236     pa_assert(u);
 237
 238     if (s->source->monitor_of) {
 239         if (pa_sink_check_suspend(s->source->monitor_of) <= 1)
 240             d = pa_hashmap_get(u->device_infos, s->source->monitor_of);
 241     } else {
 242         if (pa_source_check_suspend(s->source) <= 1)
 243             d = pa_hashmap_get(u->device_infos, s->source);
 244     }
 245
 246     if (d)
 247         restart(d);
 248
 249     return PA_HOOK_OK;
 250 }
 251
 252 static pa_hook_result_t source_output_move_finish_hook_cb(pa_core *c, pa_source_output *s, struct userdata *u) {
 253     struct device_info *d;
 254
 255     pa_assert(c);
 256     pa_source_output_assert_ref(s);
 257     pa_assert(u);
 258
 259     if (s->source->monitor_of)
 260         d = pa_hashmap_get(u->device_infos, s->source->monitor_of);
 261     else
 262         d = pa_hashmap_get(u->device_infos, s->source);
 263
 264     if (d)
 265         resume(d);
 266
 267     return PA_HOOK_OK;
 268 }
 269
 270 static pa_hook_result_t sink_input_state_changed_hook_cb(pa_core *c, pa_sink_input *s, struct userdata *u) {
 271     struct device_info *d;
 272     pa_sink_input_state_t state;
 273     pa_assert(c);
 274     pa_sink_input_assert_ref(s);
 275     pa_assert(u);
 276
 277     state = pa_sink_input_get_state(s);
 278     if (state == PA_SINK_INPUT_RUNNING || state == PA_SINK_INPUT_DRAINED)
 279         if ((d = pa_hashmap_get(u->device_infos, s->sink)))
 280             resume(d);
 281
 282     return PA_HOOK_OK;
 283 }
 284
 285 static pa_hook_result_t source_output_state_changed_hook_cb(pa_core *c, pa_source_output *s, struct userdata *u) {
 286     pa_source_output_state_t state;
 287
 288     pa_assert(c);
 289     pa_source_output_assert_ref(s);
 290     pa_assert(u);
 291
 292     state = pa_source_output_get_state(s);
 293
 294     if (state == PA_SOURCE_OUTPUT_RUNNING) {
 295         struct device_info *d;
 296
 297         if (s->source->monitor_of)
 298             d = pa_hashmap_get(u->device_infos, s->source->monitor_of);
 299         else
 300             d = pa_hashmap_get(u->device_infos, s->source);
 301
 302         if (d)
 303             resume(d);
 304     }
 305
 306     return PA_HOOK_OK;
 307 }
 308
 309 static pa_hook_result_t device_new_hook_cb(pa_core *c, pa_object *o, struct userdata *u) {
 310     struct device_info *d;
 311     pa_source *source;
 312     pa_sink *sink;
 313
 314     pa_assert(c);
 315     pa_object_assert_ref(o);
 316     pa_assert(u);
 317
 318     source = pa_source_isinstance(o) ? PA_SOURCE(o) : NULL;
 319     sink = pa_sink_isinstance(o) ? PA_SINK(o) : NULL;
 320
 321     /* Never suspend monitors */
 322     if (source && source->monitor_of)
 323         return PA_HOOK_OK;
 324
 325     pa_assert(source || sink);
 326
 327     d = pa_xnew(struct device_info, 1);
 328     d->userdata = u;
 329     d->source = source ? pa_source_ref(source) : NULL;
 330     d->sink = sink ? pa_sink_ref(sink) : NULL;
 331     d->time_event = c->mainloop->time_new(c->mainloop, NULL, timeout_cb, d);
 332     pa_hashmap_put(u->device_infos, o, d);
 333
 334     if ((d->sink && pa_sink_check_suspend(d->sink) <= 0) ||
 335         (d->source && pa_source_check_suspend(d->source) <= 0))
 336         restart(d);
 337
 338     return PA_HOOK_OK;
 339 }
 340
 341 static void device_info_free(struct device_info *d) {
 342     pa_assert(d);
 343
 344     if (d->source)
 345         pa_source_unref(d->source);
 346     if (d->sink)
 347         pa_sink_unref(d->sink);
 348
 349     d->userdata->core->mainloop->time_free(d->time_event);
 350
 351     pa_xfree(d);
 352 }
 353
 354 static pa_hook_result_t device_unlink_hook_cb(pa_core *c, pa_object *o, struct userdata *u) {
 355     struct device_info *d;
 356
 357     pa_assert(c);
 358     pa_object_assert_ref(o);
 359     pa_assert(u);
 360
 361     if ((d = pa_hashmap_remove(u->device_infos, o)))
 362         device_info_free(d);
 363
 364     return PA_HOOK_OK;
 365 }
 366
 367 static pa_hook_result_t device_state_changed_hook_cb(pa_core *c, pa_object *o, struct userdata *u) {
 368     struct device_info *d;
 369
 370     pa_assert(c);
 371     pa_object_assert_ref(o);
 372     pa_assert(u);
 373
 374     if (!(d = pa_hashmap_get(u->device_infos, o)))
 375         return PA_HOOK_OK;
 376
 377     if (pa_sink_isinstance(o)) {
 378         pa_sink *s = PA_SINK(o);
 379         pa_sink_state_t state = pa_sink_get_state(s);
 380
 381         if (pa_sink_check_suspend(s) <= 0) {
 382
 383             if (PA_SINK_IS_OPENED(state))
 384                 restart(d);
 385
 386         }
 387
 388     } else if (pa_source_isinstance(o)) {
 389         pa_source *s = PA_SOURCE(o);
 390         pa_source_state_t state = pa_source_get_state(s);
 391
 392         if (pa_source_check_suspend(s) <= 0) {
 393
 394             if (PA_SOURCE_IS_OPENED(state))
 395                 restart(d);
 396         }
 397     }
 398
 399     return PA_HOOK_OK;
 400 }
 401
 402 int pa__init(pa_module*m) {
 403     pa_modargs *ma = NULL;
 404     struct userdata *u;
 405     uint32_t timeout = 5;
 406     uint32_t idx;
 407     pa_sink *sink;
 408     pa_source *source;
 409
 410     pa_assert(m);
 411
 412     if (!(ma = pa_modargs_new(m->argument, valid_modargs))) {
 413         pa_log("Failed to parse module arguments.");
 414         goto fail;
 415     }
 416
 417     if (pa_modargs_get_value_u32(ma, "timeout", &timeout) < 0) {
 418         pa_log("Failed to parse timeout value.");
 419         goto fail;
 420     }
 421
 422     m->userdata = u = pa_xnew(struct userdata, 1);
 423     u->core = m->core;
 424     u->timeout = timeout;
 425     u->device_infos = pa_hashmap_new(pa_idxset_trivial_hash_func, pa_idxset_trivial_compare_func);
 426
 427     for (sink = pa_idxset_first(m->core->sinks, &idx); sink; sink = pa_idxset_next(m->core->sinks, &idx))
 428         device_new_hook_cb(m->core, PA_OBJECT(sink), u);
 429
 430     for (source = pa_idxset_first(m->core->sources, &idx); source; source = pa_idxset_next(m->core->sources, &idx))
 431         device_new_hook_cb(m->core, PA_OBJECT(source), u);
 432
 433     u->sink_new_slot = pa_hook_connect(&m->core->hooks[PA_CORE_HOOK_SINK_PUT], PA_HOOK_NORMAL, (pa_hook_cb_t) device_new_hook_cb, u);
 434     u->source_new_slot = pa_hook_connect(&m->core->hooks[PA_CORE_HOOK_SOURCE_PUT], PA_HOOK_NORMAL, (pa_hook_cb_t) device_new_hook_cb, u);
 435     u->sink_unlink_slot = pa_hook_connect(&m->core->hooks[PA_CORE_HOOK_SINK_UNLINK_POST], PA_HOOK_NORMAL, (pa_hook_cb_t) device_unlink_hook_cb, u);
 436     u->source_unlink_slot = pa_hook_connect(&m->core->hooks[PA_CORE_HOOK_SOURCE_UNLINK_POST], PA_HOOK_NORMAL, (pa_hook_cb_t) device_unlink_hook_cb, u);
 437     u->sink_state_changed_slot = pa_hook_connect(&m->core->hooks[PA_CORE_HOOK_SINK_STATE_CHANGED], PA_HOOK_NORMAL, (pa_hook_cb_t) device_state_changed_hook_cb, u);
 438     u->source_state_changed_slot = pa_hook_connect(&m->core->hooks[PA_CORE_HOOK_SOURCE_STATE_CHANGED], PA_HOOK_NORMAL, (pa_hook_cb_t) device_state_changed_hook_cb, u);
 439
 440     u->sink_input_new_slot = pa_hook_connect(&m->core->hooks[PA_CORE_HOOK_SINK_INPUT_FIXATE], PA_HOOK_NORMAL, (pa_hook_cb_t) sink_input_fixate_hook_cb, u);
 441     u->source_output_new_slot = pa_hook_connect(&m->core->hooks[PA_CORE_HOOK_SOURCE_OUTPUT_FIXATE], PA_HOOK_NORMAL, (pa_hook_cb_t) source_output_fixate_hook_cb, u);
 442     u->sink_input_unlink_slot = pa_hook_connect(&m->core->hooks[PA_CORE_HOOK_SINK_INPUT_UNLINK_POST], PA_HOOK_NORMAL, (pa_hook_cb_t) sink_input_unlink_hook_cb, u);
 443     u->source_output_unlink_slot = pa_hook_connect(&m->core->hooks[PA_CORE_HOOK_SOURCE_OUTPUT_UNLINK_POST], PA_HOOK_NORMAL, (pa_hook_cb_t) source_output_unlink_hook_cb, u);
 444     u->sink_input_move_start_slot = pa_hook_connect(&m->core->hooks[PA_CORE_HOOK_SINK_INPUT_MOVE_START], PA_HOOK_NORMAL, (pa_hook_cb_t) sink_input_move_start_hook_cb, u);
 445     u->source_output_move_start_slot = pa_hook_connect(&m->core->hooks[PA_CORE_HOOK_SOURCE_OUTPUT_MOVE_START], PA_HOOK_NORMAL, (pa_hook_cb_t) source_output_move_start_hook_cb, u);
 446     u->sink_input_move_finish_slot = pa_hook_connect(&m->core->hooks[PA_CORE_HOOK_SINK_INPUT_MOVE_FINISH], PA_HOOK_NORMAL, (pa_hook_cb_t) sink_input_move_finish_hook_cb, u);
 447     u->source_output_move_finish_slot = pa_hook_connect(&m->core->hooks[PA_CORE_HOOK_SOURCE_OUTPUT_MOVE_FINISH], PA_HOOK_NORMAL, (pa_hook_cb_t) source_output_move_finish_hook_cb, u);
 448     u->sink_input_state_changed_slot = pa_hook_connect(&m->core->hooks[PA_CORE_HOOK_SINK_INPUT_STATE_CHANGED], PA_HOOK_NORMAL, (pa_hook_cb_t) sink_input_state_changed_hook_cb, u);
 449     u->source_output_state_changed_slot = pa_hook_connect(&m->core->hooks[PA_CORE_HOOK_SOURCE_OUTPUT_STATE_CHANGED], PA_HOOK_NORMAL, (pa_hook_cb_t) source_output_state_changed_hook_cb, u);
 450
 451     pa_modargs_free(ma);
 452     return 0;
 453
 454 fail:
 455
 456     if (ma)
 457         pa_modargs_free(ma);
 458
 459     return -1;
 460 }
 461
 462 void pa__done(pa_module*m) {
 463     struct userdata *u;
 464     struct device_info *d;
 465
 466     pa_assert(m);
 467
 468     if (!m->userdata)
 469         return;
 470
 471     u = m->userdata;
 472
 473     if (u->sink_new_slot)
 474         pa_hook_slot_free(u->sink_new_slot);
 475     if (u->sink_unlink_slot)
 476         pa_hook_slot_free(u->sink_unlink_slot);
 477     if (u->sink_state_changed_slot)
 478         pa_hook_slot_free(u->sink_state_changed_slot);
 479
 480     if (u->source_new_slot)
 481         pa_hook_slot_free(u->source_new_slot);
 482     if (u->source_unlink_slot)
 483         pa_hook_slot_free(u->source_unlink_slot);
 484     if (u->source_state_changed_slot)
 485         pa_hook_slot_free(u->source_state_changed_slot);
 486
 487     if (u->sink_input_new_slot)
 488         pa_hook_slot_free(u->sink_input_new_slot);
 489     if (u->sink_input_unlink_slot)
 490         pa_hook_slot_free(u->sink_input_unlink_slot);
 491     if (u->sink_input_move_start_slot)
 492         pa_hook_slot_free(u->sink_input_move_start_slot);
 493     if (u->sink_input_move_finish_slot)
 494         pa_hook_slot_free(u->sink_input_move_finish_slot);
 495     if (u->sink_input_state_changed_slot)
 496         pa_hook_slot_free(u->sink_input_state_changed_slot);
 497
 498     if (u->source_output_new_slot)
 499         pa_hook_slot_free(u->source_output_new_slot);
 500     if (u->source_output_unlink_slot)
 501         pa_hook_slot_free(u->source_output_unlink_slot);
 502     if (u->source_output_move_start_slot)
 503         pa_hook_slot_free(u->source_output_move_start_slot);
 504     if (u->source_output_move_finish_slot)
 505         pa_hook_slot_free(u->source_output_move_finish_slot);
 506     if (u->source_output_state_changed_slot)
 507         pa_hook_slot_free(u->source_output_state_changed_slot);
 508
 509     while ((d = pa_hashmap_steal_first(u->device_infos)))
 510         device_info_free(d);
 511
 512     pa_hashmap_free(u->device_infos, NULL, NULL);
 513
 514     pa_xfree(u);
 515 }