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 #include <pulse/rtclock.h>
  29
  30 #include <pulsecore/core.h>
  31 #include <pulsecore/core-util.h>
  32 #include <pulsecore/sink-input.h>
  33 #include <pulsecore/source-output.h>
  34 #include <pulsecore/modargs.h>
  35 #include <pulsecore/log.h>
  36 #include <pulsecore/namereg.h>
  37
  38 #include "module-suspend-on-idle-symdef.h"
  39
  40 PA_MODULE_AUTHOR("Lennart Poettering");
  41 PA_MODULE_DESCRIPTION("When a sink/source is idle for too long, suspend it");
  42 PA_MODULE_VERSION(PACKAGE_VERSION);
  43 PA_MODULE_LOAD_ONCE(TRUE);
  44
  45 static const char* const valid_modargs[] = {
  46     "timeout",
  47     NULL,
  48 };
  49
  50 struct userdata {
  51     pa_core *core;
  52     pa_usec_t timeout;
  53     pa_hashmap *device_infos;
  54     pa_hook_slot
  55         *sink_new_slot,
  56         *source_new_slot,
  57         *sink_unlink_slot,
  58         *source_unlink_slot,
  59         *sink_state_changed_slot,
  60         *source_state_changed_slot;
  61
  62     pa_hook_slot
  63         *sink_input_new_slot,
  64         *source_output_new_slot,
  65         *sink_input_unlink_slot,
  66         *source_output_unlink_slot,
  67         *sink_input_move_start_slot,
  68         *source_output_move_start_slot,
  69         *sink_input_move_finish_slot,
  70         *source_output_move_finish_slot,
  71         *sink_input_state_changed_slot,
  72         *source_output_state_changed_slot;
  73 };
  74
  75 struct device_info {
  76     struct userdata *userdata;
  77     pa_sink *sink;
  78     pa_source *source;
  79     pa_usec_t last_use;
  80     pa_time_event *time_event;
  81 };
  82
  83 static void timeout_cb(pa_mainloop_api*a, pa_time_event* e, const struct timeval *t, void *userdata) {
  84     struct device_info *d = userdata;
  85
  86     pa_assert(d);
  87
  88     d->userdata->core->mainloop->time_restart(d->time_event, NULL);
  89
  90     if (d->sink && pa_sink_check_suspend(d->sink) <= 0 && !(d->sink->suspend_cause & PA_SUSPEND_IDLE)) {
  91         pa_log_info("Sink %s idle for too long, suspending ...", d->sink->name);
  92         pa_sink_suspend(d->sink, TRUE, PA_SUSPEND_IDLE);
  93     }
  94
  95     if (d->source && pa_source_check_suspend(d->source) <= 0 && !(d->source->suspend_cause & PA_SUSPEND_IDLE)) {
  96         pa_log_info("Source %s idle for too long, suspending ...", d->source->name);
  97         pa_source_suspend(d->source, TRUE, PA_SUSPEND_IDLE);
  98     }
  99 }
 100
 101 static void restart(struct device_info *d) {
 102     pa_usec_t now;
 103     const char *s;
 104     uint32_t timeout;
 105
 106     pa_assert(d);
 107     pa_assert(d->sink || d->source);
 108
 109     d->last_use = now = pa_rtclock_now();
 110
 111     s = pa_proplist_gets(d->sink ? d->sink->proplist : d->source->proplist, "module-suspend-on-idle.timeout");
 112     if (!s || pa_atou(s, &timeout) < 0)
 113         timeout = d->userdata->timeout;
 114
 115     pa_core_rttime_restart(d->userdata->core, d->time_event, now + timeout * PA_USEC_PER_SEC);
 116
 117     if (d->sink)
 118         pa_log_debug("Sink %s becomes idle, timeout in %u seconds.", d->sink->name, timeout);
 119     if (d->source)
 120         pa_log_debug("Source %s becomes idle, timeout in %u seconds.", d->source->name, timeout);
 121 }
 122
 123 static void resume(struct device_info *d) {
 124     pa_assert(d);
 125
 126     d->userdata->core->mainloop->time_restart(d->time_event, NULL);
 127
 128     if (d->sink) {
 129         pa_sink_suspend(d->sink, FALSE, PA_SUSPEND_IDLE);
 130
 131         pa_log_debug("Sink %s becomes busy.", d->sink->name);
 132     }
 133
 134     if (d->source) {
 135         pa_source_suspend(d->source, FALSE, PA_SUSPEND_IDLE);
 136
 137         pa_log_debug("Source %s becomes busy.", d->source->name);
 138     }
 139 }
 140
 141 static pa_hook_result_t sink_input_fixate_hook_cb(pa_core *c, pa_sink_input_new_data *data, struct userdata *u) {
 142     struct device_info *d;
 143
 144     pa_assert(c);
 145     pa_assert(data);
 146     pa_assert(u);
 147
 148     if (data->flags & PA_SINK_INPUT_START_CORKED)
 149         return PA_HOOK_OK;
 150
 151     if ((d = pa_hashmap_get(u->device_infos, data->sink)))
 152         resume(d);
 153
 154     return PA_HOOK_OK;
 155 }
 156
 157 static pa_hook_result_t source_output_fixate_hook_cb(pa_core *c, pa_source_output_new_data *data, struct userdata *u) {
 158     struct device_info *d;
 159
 160     pa_assert(c);
 161     pa_assert(data);
 162     pa_assert(u);
 163
 164     if (data->flags & PA_SOURCE_OUTPUT_START_CORKED)
 165         return PA_HOOK_OK;
 166
 167     if (data->source->monitor_of)
 168         d = pa_hashmap_get(u->device_infos, data->source->monitor_of);
 169     else
 170         d = pa_hashmap_get(u->device_infos, data->source);
 171
 172     if (d)
 173         resume(d);
 174
 175     return PA_HOOK_OK;
 176 }
 177
 178 static pa_hook_result_t sink_input_unlink_hook_cb(pa_core *c, pa_sink_input *s, struct userdata *u) {
 179     pa_assert(c);
 180     pa_sink_input_assert_ref(s);
 181     pa_assert(u);
 182
 183     if (!s->sink)
 184         return PA_HOOK_OK;
 185
 186     if (pa_sink_check_suspend(s->sink) <= 0) {
 187         struct device_info *d;
 188         if ((d = pa_hashmap_get(u->device_infos, s->sink)))
 189             restart(d);
 190     }
 191
 192     return PA_HOOK_OK;
 193 }
 194
 195 static pa_hook_result_t source_output_unlink_hook_cb(pa_core *c, pa_source_output *s, struct userdata *u) {
 196     struct device_info *d = NULL;
 197
 198     pa_assert(c);
 199     pa_source_output_assert_ref(s);
 200     pa_assert(u);
 201
 202     if (!s->source)
 203         return PA_HOOK_OK;
 204
 205     if (s->source->monitor_of) {
 206         if (pa_sink_check_suspend(s->source->monitor_of) <= 0)
 207             d = pa_hashmap_get(u->device_infos, s->source->monitor_of);
 208     } else {
 209         if (pa_source_check_suspend(s->source) <= 0)
 210             d = pa_hashmap_get(u->device_infos, s->source);
 211     }
 212
 213     if (d)
 214         restart(d);
 215
 216     return PA_HOOK_OK;
 217 }
 218
 219 static pa_hook_result_t sink_input_move_start_hook_cb(pa_core *c, pa_sink_input *s, struct userdata *u) {
 220     struct device_info *d;
 221
 222     pa_assert(c);
 223     pa_sink_input_assert_ref(s);
 224     pa_assert(u);
 225
 226     if (pa_sink_check_suspend(s->sink) <= 1)
 227         if ((d = pa_hashmap_get(u->device_infos, s->sink)))
 228             restart(d);
 229
 230     return PA_HOOK_OK;
 231 }
 232
 233 static pa_hook_result_t sink_input_move_finish_hook_cb(pa_core *c, pa_sink_input *s, struct userdata *u) {
 234     struct device_info *d;
 235     pa_sink_input_state_t state;
 236
 237     pa_assert(c);
 238     pa_sink_input_assert_ref(s);
 239     pa_assert(u);
 240
 241     state = pa_sink_input_get_state(s);
 242     if (state != PA_SINK_INPUT_RUNNING && state != PA_SINK_INPUT_DRAINED)
 243         return PA_HOOK_OK;
 244
 245     if ((d = pa_hashmap_get(u->device_infos, s->sink)))
 246         resume(d);
 247
 248     return PA_HOOK_OK;
 249 }
 250
 251 static pa_hook_result_t source_output_move_start_hook_cb(pa_core *c, pa_source_output *s, struct userdata *u) {
 252     struct device_info *d = NULL;
 253
 254     pa_assert(c);
 255     pa_source_output_assert_ref(s);
 256     pa_assert(u);
 257
 258     if (s->source->monitor_of) {
 259         if (pa_sink_check_suspend(s->source->monitor_of) <= 1)
 260             d = pa_hashmap_get(u->device_infos, s->source->monitor_of);
 261     } else {
 262         if (pa_source_check_suspend(s->source) <= 1)
 263             d = pa_hashmap_get(u->device_infos, s->source);
 264     }
 265
 266     if (d)
 267         restart(d);
 268
 269     return PA_HOOK_OK;
 270 }
 271
 272 static pa_hook_result_t source_output_move_finish_hook_cb(pa_core *c, pa_source_output *s, struct userdata *u) {
 273     struct device_info *d;
 274
 275     pa_assert(c);
 276     pa_source_output_assert_ref(s);
 277     pa_assert(u);
 278
 279     if (pa_source_output_get_state(s) != PA_SOURCE_OUTPUT_RUNNING)
 280         return PA_HOOK_OK;
 281
 282     if (s->source->monitor_of)
 283         d = pa_hashmap_get(u->device_infos, s->source->monitor_of);
 284     else
 285         d = pa_hashmap_get(u->device_infos, s->source);
 286
 287     if (d)
 288         resume(d);
 289
 290     return PA_HOOK_OK;
 291 }
 292
 293 static pa_hook_result_t sink_input_state_changed_hook_cb(pa_core *c, pa_sink_input *s, struct userdata *u) {
 294     struct device_info *d;
 295     pa_sink_input_state_t state;
 296
 297     pa_assert(c);
 298     pa_sink_input_assert_ref(s);
 299     pa_assert(u);
 300
 301     state = pa_sink_input_get_state(s);
 302     if (state == PA_SINK_INPUT_RUNNING || state == PA_SINK_INPUT_DRAINED)
 303         if ((d = pa_hashmap_get(u->device_infos, s->sink)))
 304             resume(d);
 305
 306     return PA_HOOK_OK;
 307 }
 308
 309 static pa_hook_result_t source_output_state_changed_hook_cb(pa_core *c, pa_source_output *s, struct userdata *u) {
 310     pa_assert(c);
 311     pa_source_output_assert_ref(s);
 312     pa_assert(u);
 313
 314     if (pa_source_output_get_state(s) == PA_SOURCE_OUTPUT_RUNNING) {
 315         struct device_info *d;
 316
 317         if (s->source->monitor_of)
 318             d = pa_hashmap_get(u->device_infos, s->source->monitor_of);
 319         else
 320             d = pa_hashmap_get(u->device_infos, s->source);
 321
 322         if (d)
 323             resume(d);
 324     }
 325
 326     return PA_HOOK_OK;
 327 }
 328
 329 static pa_hook_result_t device_new_hook_cb(pa_core *c, pa_object *o, struct userdata *u) {
 330     struct device_info *d;
 331     pa_source *source;
 332     pa_sink *sink;
 333
 334     pa_assert(c);
 335     pa_object_assert_ref(o);
 336     pa_assert(u);
 337
 338     source = pa_source_isinstance(o) ? PA_SOURCE(o) : NULL;
 339     sink = pa_sink_isinstance(o) ? PA_SINK(o) : NULL;
 340
 341     /* Never suspend monitors */
 342     if (source && source->monitor_of)
 343         return PA_HOOK_OK;
 344
 345     pa_assert(source || sink);
 346
 347     d = pa_xnew(struct device_info, 1);
 348     d->userdata = u;
 349     d->source = source ? pa_source_ref(source) : NULL;
 350     d->sink = sink ? pa_sink_ref(sink) : NULL;
 351     d->time_event = pa_core_rttime_new(c, PA_USEC_INVALID, timeout_cb, d);
 352     pa_hashmap_put(u->device_infos, o, d);
 353
 354     if ((d->sink && pa_sink_check_suspend(d->sink) <= 0) ||
 355         (d->source && pa_source_check_suspend(d->source) <= 0))
 356         restart(d);
 357
 358     return PA_HOOK_OK;
 359 }
 360
 361 static void device_info_free(struct device_info *d) {
 362     pa_assert(d);
 363
 364     if (d->source)
 365         pa_source_unref(d->source);
 366     if (d->sink)
 367         pa_sink_unref(d->sink);
 368
 369     d->userdata->core->mainloop->time_free(d->time_event);
 370
 371     pa_xfree(d);
 372 }
 373
 374 static pa_hook_result_t device_unlink_hook_cb(pa_core *c, pa_object *o, struct userdata *u) {
 375     struct device_info *d;
 376
 377     pa_assert(c);
 378     pa_object_assert_ref(o);
 379     pa_assert(u);
 380
 381     if ((d = pa_hashmap_remove(u->device_infos, o)))
 382         device_info_free(d);
 383
 384     return PA_HOOK_OK;
 385 }
 386
 387 static pa_hook_result_t device_state_changed_hook_cb(pa_core *c, pa_object *o, struct userdata *u) {
 388     struct device_info *d;
 389
 390     pa_assert(c);
 391     pa_object_assert_ref(o);
 392     pa_assert(u);
 393
 394     if (!(d = pa_hashmap_get(u->device_infos, o)))
 395         return PA_HOOK_OK;
 396
 397     if (pa_sink_isinstance(o)) {
 398         pa_sink *s = PA_SINK(o);
 399         pa_sink_state_t state = pa_sink_get_state(s);
 400
 401         if (pa_sink_check_suspend(s) <= 0)
 402             if (PA_SINK_IS_OPENED(state))
 403                 restart(d);
 404
 405     } else if (pa_source_isinstance(o)) {
 406         pa_source *s = PA_SOURCE(o);
 407         pa_source_state_t state = pa_source_get_state(s);
 408
 409         if (pa_source_check_suspend(s) <= 0)
 410             if (PA_SOURCE_IS_OPENED(state))
 411                 restart(d);
 412     }
 413
 414     return PA_HOOK_OK;
 415 }
 416
 417 int pa__init(pa_module*m) {
 418     pa_modargs *ma = NULL;
 419     struct userdata *u;
 420     uint32_t timeout = 5;
 421     uint32_t idx;
 422     pa_sink *sink;
 423     pa_source *source;
 424
 425     pa_assert(m);
 426
 427     if (!(ma = pa_modargs_new(m->argument, valid_modargs))) {
 428         pa_log("Failed to parse module arguments.");
 429         goto fail;
 430     }
 431
 432     if (pa_modargs_get_value_u32(ma, "timeout", &timeout) < 0) {
 433         pa_log("Failed to parse timeout value.");
 434         goto fail;
 435     }
 436
 437     m->userdata = u = pa_xnew(struct userdata, 1);
 438     u->core = m->core;
 439     u->timeout = timeout;
 440     u->device_infos = pa_hashmap_new(pa_idxset_trivial_hash_func, pa_idxset_trivial_compare_func);
 441
 442     for (sink = pa_idxset_first(m->core->sinks, &idx); sink; sink = pa_idxset_next(m->core->sinks, &idx))
 443         device_new_hook_cb(m->core, PA_OBJECT(sink), u);
 444
 445     for (source = pa_idxset_first(m->core->sources, &idx); source; source = pa_idxset_next(m->core->sources, &idx))
 446         device_new_hook_cb(m->core, PA_OBJECT(source), u);
 447
 448     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);
 449     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);
 450     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);
 451     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);
 452     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);
 453     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);
 454
 455     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);
 456     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);
 457     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);
 458     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);
 459     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);
 460     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);
 461     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);
 462     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);
 463     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);
 464     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);
 465
 466     pa_modargs_free(ma);
 467     return 0;
 468
 469 fail:
 470
 471     if (ma)
 472         pa_modargs_free(ma);
 473
 474     return -1;
 475 }
 476
 477 void pa__done(pa_module*m) {
 478     struct userdata *u;
 479     struct device_info *d;
 480
 481     pa_assert(m);
 482
 483     if (!m->userdata)
 484         return;
 485
 486     u = m->userdata;
 487
 488     if (u->sink_new_slot)
 489         pa_hook_slot_free(u->sink_new_slot);
 490     if (u->sink_unlink_slot)
 491         pa_hook_slot_free(u->sink_unlink_slot);
 492     if (u->sink_state_changed_slot)
 493         pa_hook_slot_free(u->sink_state_changed_slot);
 494
 495     if (u->source_new_slot)
 496         pa_hook_slot_free(u->source_new_slot);
 497     if (u->source_unlink_slot)
 498         pa_hook_slot_free(u->source_unlink_slot);
 499     if (u->source_state_changed_slot)
 500         pa_hook_slot_free(u->source_state_changed_slot);
 501
 502     if (u->sink_input_new_slot)
 503         pa_hook_slot_free(u->sink_input_new_slot);
 504     if (u->sink_input_unlink_slot)
 505         pa_hook_slot_free(u->sink_input_unlink_slot);
 506     if (u->sink_input_move_start_slot)
 507         pa_hook_slot_free(u->sink_input_move_start_slot);
 508     if (u->sink_input_move_finish_slot)
 509         pa_hook_slot_free(u->sink_input_move_finish_slot);
 510     if (u->sink_input_state_changed_slot)
 511         pa_hook_slot_free(u->sink_input_state_changed_slot);
 512
 513     if (u->source_output_new_slot)
 514         pa_hook_slot_free(u->source_output_new_slot);
 515     if (u->source_output_unlink_slot)
 516         pa_hook_slot_free(u->source_output_unlink_slot);
 517     if (u->source_output_move_start_slot)
 518         pa_hook_slot_free(u->source_output_move_start_slot);
 519     if (u->source_output_move_finish_slot)
 520         pa_hook_slot_free(u->source_output_move_finish_slot);
 521     if (u->source_output_state_changed_slot)
 522         pa_hook_slot_free(u->source_output_state_changed_slot);
 523
 524     while ((d = pa_hashmap_steal_first(u->device_infos)))
 525         device_info_free(d);
 526
 527     pa_hashmap_free(u->device_infos, NULL, NULL);
 528
 529     pa_xfree(u);
 530 }