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