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

   1 /* $Id$ */
   2
   3 /***
   4   This file is part of PulseAudio.
   5
   6   Copyright 2006 Lennart Poettering
   7
   8   PulseAudio is free software; you can redistribute it and/or modify
   9   it under the terms of the GNU Lesser General Public License as published
  10   by the Free Software Foundation; either version 2 of the License,
  11   or (at your option) any later version.
  12
  13   PulseAudio is distributed in the hope that it will be useful, but
  14   WITHOUT ANY WARRANTY; without even the implied warranty of
  15   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  16   General Public License for more details.
  17
  18   You should have received a copy of the GNU Lesser General Public License
  19   along with PulseAudio; if not, write to the Free Software
  20   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
  21   USA.
  22 ***/
  23
  24 #ifdef HAVE_CONFIG_H
  25 #include <config.h>
  26 #endif
  27
  28 #include <pulse/xmalloc.h>
  29 #include <pulse/timeval.h>
  30
  31 #include <pulsecore/core.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_slot,
  68         *source_output_move_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_used_by(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_used_by(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 ((d = pa_hashmap_get(u->device_infos, data->source)))
 153         resume(d);
 154
 155     return PA_HOOK_OK;
 156 }
 157
 158 static pa_hook_result_t sink_input_unlink_hook_cb(pa_core *c, pa_sink_input *s, struct userdata *u) {
 159     pa_assert(c);
 160     pa_sink_input_assert_ref(s);
 161     pa_assert(u);
 162
 163     if (pa_sink_used_by(s->sink) <= 0) {
 164         struct device_info *d;
 165         if ((d = pa_hashmap_get(u->device_infos, s->sink)))
 166             restart(d);
 167     }
 168
 169     return PA_HOOK_OK;
 170 }
 171
 172 static pa_hook_result_t source_output_unlink_hook_cb(pa_core *c, pa_source_output *s, struct userdata *u) {
 173     pa_assert(c);
 174     pa_source_output_assert_ref(s);
 175     pa_assert(u);
 176
 177     if (pa_source_used_by(s->source) <= 0) {
 178         struct device_info *d;
 179         if ((d = pa_hashmap_get(u->device_infos, s->source)))
 180             restart(d);
 181     }
 182
 183     return PA_HOOK_OK;
 184 }
 185
 186 static pa_hook_result_t sink_input_move_hook_cb(pa_core *c, pa_sink_input_move_hook_data *data, struct userdata *u) {
 187     struct device_info *d;
 188
 189     pa_assert(c);
 190     pa_assert(data);
 191     pa_assert(u);
 192
 193     if ((d = pa_hashmap_get(u->device_infos, data->destination)))
 194         resume(d);
 195
 196     if (pa_sink_used_by(data->sink_input->sink) <= 1)
 197         if ((d = pa_hashmap_get(u->device_infos, data->sink_input->sink)))
 198             restart(d);
 199
 200     return PA_HOOK_OK;
 201 }
 202
 203 static pa_hook_result_t source_output_move_hook_cb(pa_core *c, pa_source_output_move_hook_data *data, struct userdata *u) {
 204     struct device_info *d;
 205
 206     pa_assert(c);
 207     pa_assert(data);
 208     pa_assert(u);
 209
 210     if ((d = pa_hashmap_get(u->device_infos, data->destination)))
 211         resume(d);
 212
 213     if (pa_source_used_by(data->source_output->source) <= 1)
 214         if ((d = pa_hashmap_get(u->device_infos, data->source_output->source)))
 215             restart(d);
 216
 217     return PA_HOOK_OK;
 218 }
 219
 220 static pa_hook_result_t sink_input_state_changed_hook_cb(pa_core *c, pa_sink_input *s, struct userdata *u) {
 221     struct device_info *d;
 222     pa_sink_input_state_t state;
 223     pa_assert(c);
 224     pa_sink_input_assert_ref(s);
 225     pa_assert(u);
 226
 227     state = pa_sink_input_get_state(s);
 228     if (state == PA_SINK_INPUT_RUNNING || state == PA_SINK_INPUT_DRAINED)
 229         if ((d = pa_hashmap_get(u->device_infos, s->sink)))
 230             resume(d);
 231
 232     return PA_HOOK_OK;
 233 }
 234
 235 static pa_hook_result_t source_output_state_changed_hook_cb(pa_core *c, pa_source_output *s, struct userdata *u) {
 236     struct device_info *d;
 237     pa_source_output_state_t state;
 238     pa_assert(c);
 239     pa_source_output_assert_ref(s);
 240     pa_assert(u);
 241
 242     state = pa_source_output_get_state(s);
 243     if (state == PA_SOURCE_OUTPUT_RUNNING)
 244         if ((d = pa_hashmap_get(u->device_infos, s->source)))
 245             resume(d);
 246
 247     return PA_HOOK_OK;
 248 }
 249
 250 static pa_hook_result_t device_new_hook_cb(pa_core *c, pa_object *o, struct userdata *u) {
 251     struct device_info *d;
 252     pa_source *source;
 253     pa_sink *sink;
 254
 255     pa_assert(c);
 256     pa_object_assert_ref(o);
 257     pa_assert(u);
 258
 259     source = pa_source_isinstance(o) ? PA_SOURCE(o) : NULL;
 260     sink = pa_sink_isinstance(o) ? PA_SINK(o) : NULL;
 261
 262     pa_assert(source || sink);
 263
 264     d = pa_xnew(struct device_info, 1);
 265     d->userdata = u;
 266     d->source = source ? pa_source_ref(source) : NULL;
 267     d->sink = sink ? pa_sink_ref(sink) : NULL;
 268     d->time_event = c->mainloop->time_new(c->mainloop, NULL, timeout_cb, d);
 269     pa_hashmap_put(u->device_infos, o, d);
 270
 271     if ((d->sink && pa_sink_used_by(d->sink) <= 0) ||
 272         (d->source && pa_source_used_by(d->source) <= 0))
 273         restart(d);
 274
 275     return PA_HOOK_OK;
 276 }
 277
 278 static void device_info_free(struct device_info *d) {
 279     pa_assert(d);
 280
 281     if (d->source)
 282         pa_source_unref(d->source);
 283     if (d->sink)
 284         pa_sink_unref(d->sink);
 285
 286     d->userdata->core->mainloop->time_free(d->time_event);
 287
 288     pa_xfree(d);
 289 }
 290
 291 static pa_hook_result_t device_unlink_hook_cb(pa_core *c, pa_object *o, struct userdata *u) {
 292     struct device_info *d;
 293
 294     pa_assert(c);
 295     pa_object_assert_ref(o);
 296     pa_assert(u);
 297
 298     if ((d = pa_hashmap_remove(u->device_infos, o)))
 299         device_info_free(d);
 300
 301     return PA_HOOK_OK;
 302 }
 303
 304 static pa_hook_result_t device_state_changed_hook_cb(pa_core *c, pa_object *o, struct userdata *u) {
 305     struct device_info *d;
 306
 307     pa_assert(c);
 308     pa_object_assert_ref(o);
 309     pa_assert(u);
 310
 311     if (!(d = pa_hashmap_get(u->device_infos, o)))
 312         return PA_HOOK_OK;
 313
 314     if (pa_sink_isinstance(o)) {
 315         pa_sink *s = PA_SINK(o);
 316         pa_sink_state_t state = pa_sink_get_state(s);
 317
 318         if (pa_sink_used_by(s) <= 0) {
 319
 320             if (PA_SINK_IS_OPENED(state))
 321                 restart(d);
 322
 323         }
 324
 325     } else if (pa_source_isinstance(o)) {
 326         pa_source *s = PA_SOURCE(o);
 327         pa_source_state_t state = pa_source_get_state(s);
 328
 329         if (pa_source_used_by(s) <= 0) {
 330
 331             if (PA_SOURCE_IS_OPENED(state))
 332                 restart(d);
 333         }
 334     }
 335
 336     return PA_HOOK_OK;
 337 }
 338
 339 int pa__init(pa_module*m) {
 340     pa_modargs *ma = NULL;
 341     struct userdata *u;
 342     uint32_t timeout = 1;
 343     uint32_t idx;
 344     pa_sink *sink;
 345     pa_source *source;
 346
 347     pa_assert(m);
 348
 349     if (!(ma = pa_modargs_new(m->argument, valid_modargs))) {
 350         pa_log("Failed to parse module arguments.");
 351         goto fail;
 352     }
 353
 354     if (pa_modargs_get_value_u32(ma, "timeout", &timeout) < 0) {
 355         pa_log("Failed to parse timeout value.");
 356         goto fail;
 357     }
 358
 359     m->userdata = u = pa_xnew(struct userdata, 1);
 360     u->core = m->core;
 361     u->timeout = timeout;
 362     u->device_infos = pa_hashmap_new(pa_idxset_trivial_hash_func, pa_idxset_trivial_compare_func);
 363
 364     for (sink = pa_idxset_first(m->core->sinks, &idx); sink; sink = pa_idxset_next(m->core->sinks, &idx))
 365         device_new_hook_cb(m->core, PA_OBJECT(sink), u);
 366
 367     for (source = pa_idxset_first(m->core->sources, &idx); source; source = pa_idxset_next(m->core->sources, &idx))
 368         device_new_hook_cb(m->core, PA_OBJECT(source), u);
 369
 370     u->sink_new_slot = pa_hook_connect(&m->core->hooks[PA_CORE_HOOK_SINK_PUT], (pa_hook_cb_t) device_new_hook_cb, u);
 371     u->source_new_slot = pa_hook_connect(&m->core->hooks[PA_CORE_HOOK_SOURCE_PUT], (pa_hook_cb_t) device_new_hook_cb, u);
 372     u->sink_unlink_slot = pa_hook_connect(&m->core->hooks[PA_CORE_HOOK_SINK_UNLINK_POST], (pa_hook_cb_t) device_unlink_hook_cb, u);
 373     u->source_unlink_slot = pa_hook_connect(&m->core->hooks[PA_CORE_HOOK_SOURCE_UNLINK_POST], (pa_hook_cb_t) device_unlink_hook_cb, u);
 374     u->sink_state_changed_slot = pa_hook_connect(&m->core->hooks[PA_CORE_HOOK_SINK_STATE_CHANGED], (pa_hook_cb_t) device_state_changed_hook_cb, u);
 375     u->source_state_changed_slot = pa_hook_connect(&m->core->hooks[PA_CORE_HOOK_SOURCE_STATE_CHANGED], (pa_hook_cb_t) device_state_changed_hook_cb, u);
 376
 377     u->sink_input_new_slot = pa_hook_connect(&m->core->hooks[PA_CORE_HOOK_SINK_INPUT_FIXATE], (pa_hook_cb_t) sink_input_fixate_hook_cb, u);
 378     u->source_output_new_slot = pa_hook_connect(&m->core->hooks[PA_CORE_HOOK_SOURCE_OUTPUT_FIXATE], (pa_hook_cb_t) source_output_fixate_hook_cb, u);
 379     u->sink_input_unlink_slot = pa_hook_connect(&m->core->hooks[PA_CORE_HOOK_SINK_INPUT_UNLINK_POST], (pa_hook_cb_t) sink_input_unlink_hook_cb, u);
 380     u->source_output_unlink_slot = pa_hook_connect(&m->core->hooks[PA_CORE_HOOK_SOURCE_OUTPUT_UNLINK_POST], (pa_hook_cb_t) source_output_unlink_hook_cb, u);
 381     u->sink_input_move_slot = pa_hook_connect(&m->core->hooks[PA_CORE_HOOK_SINK_INPUT_MOVE], (pa_hook_cb_t) sink_input_move_hook_cb, u);
 382     u->source_output_move_slot = pa_hook_connect(&m->core->hooks[PA_CORE_HOOK_SOURCE_OUTPUT_MOVE], (pa_hook_cb_t) source_output_move_hook_cb, u);
 383     u->sink_input_state_changed_slot = pa_hook_connect(&m->core->hooks[PA_CORE_HOOK_SINK_INPUT_STATE_CHANGED], (pa_hook_cb_t) sink_input_state_changed_hook_cb, u);
 384     u->source_output_state_changed_slot = pa_hook_connect(&m->core->hooks[PA_CORE_HOOK_SOURCE_OUTPUT_STATE_CHANGED], (pa_hook_cb_t) source_output_state_changed_hook_cb, u);
 385
 386     pa_modargs_free(ma);
 387     return 0;
 388
 389 fail:
 390
 391     if (ma)
 392         pa_modargs_free(ma);
 393
 394     return -1;
 395 }
 396
 397 void pa__done(pa_module*m) {
 398     struct userdata *u;
 399     struct device_info *d;
 400
 401     pa_assert(m);
 402
 403     if (!m->userdata)
 404         return;
 405
 406     u = m->userdata;
 407
 408     if (u->sink_new_slot)
 409         pa_hook_slot_free(u->sink_new_slot);
 410     if (u->sink_unlink_slot)
 411         pa_hook_slot_free(u->sink_unlink_slot);
 412     if (u->sink_state_changed_slot)
 413         pa_hook_slot_free(u->sink_state_changed_slot);
 414
 415     if (u->source_new_slot)
 416         pa_hook_slot_free(u->source_new_slot);
 417     if (u->source_unlink_slot)
 418         pa_hook_slot_free(u->source_unlink_slot);
 419     if (u->source_state_changed_slot)
 420         pa_hook_slot_free(u->source_state_changed_slot);
 421
 422     if (u->sink_input_new_slot)
 423         pa_hook_slot_free(u->sink_input_new_slot);
 424     if (u->sink_input_unlink_slot)
 425         pa_hook_slot_free(u->sink_input_unlink_slot);
 426     if (u->sink_input_move_slot)
 427         pa_hook_slot_free(u->sink_input_move_slot);
 428     if (u->sink_input_state_changed_slot)
 429         pa_hook_slot_free(u->sink_input_state_changed_slot);
 430
 431     if (u->source_output_new_slot)
 432         pa_hook_slot_free(u->source_output_new_slot);
 433     if (u->source_output_unlink_slot)
 434         pa_hook_slot_free(u->source_output_unlink_slot);
 435     if (u->source_output_move_slot)
 436         pa_hook_slot_free(u->source_output_move_slot);
 437     if (u->source_output_state_changed_slot)
 438         pa_hook_slot_free(u->source_output_state_changed_slot);
 439
 440     while ((d = pa_hashmap_steal_first(u->device_infos)))
 441         device_info_free(d);
 442
 443     pa_hashmap_free(u->device_infos, NULL, NULL);
 444
 445     pa_xfree(u);
 446 }