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