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/***
This file is part of PulseAudio.
Copyright 2006 Lennart Poettering
PulseAudio is free software; you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published
by the Free Software Foundation; either version 2 of the License,
or (at your option) any later version.
PulseAudio is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with PulseAudio; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
USA.
***/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include <pulse/xmalloc.h>
#include <pulse/timeval.h>
#include <pulsecore/core.h>
#include <pulsecore/sink-input.h>
#include <pulsecore/source-output.h>
#include <pulsecore/modargs.h>
#include <pulsecore/log.h>
#include <pulsecore/namereg.h>
#include "module-suspend-on-idle-symdef.h"
PA_MODULE_AUTHOR("Lennart Poettering");
PA_MODULE_DESCRIPTION("When a sink/source is idle for too long, suspend it");
PA_MODULE_VERSION(PACKAGE_VERSION);
PA_MODULE_LOAD_ONCE(TRUE);
static const char* const valid_modargs[] = {
"timeout",
NULL,
};
struct userdata {
pa_core *core;
pa_usec_t timeout;
pa_hashmap *device_infos;
pa_hook_slot
*sink_new_slot,
*source_new_slot,
*sink_unlink_slot,
*source_unlink_slot,
*sink_state_changed_slot,
*source_state_changed_slot;
pa_hook_slot
*sink_input_new_slot,
*source_output_new_slot,
*sink_input_unlink_slot,
*source_output_unlink_slot,
*sink_input_move_slot,
*source_output_move_slot,
*sink_input_state_changed_slot,
*source_output_state_changed_slot;
};
struct device_info {
struct userdata *userdata;
pa_sink *sink;
pa_source *source;
struct timeval last_use;
pa_time_event *time_event;
};
static void timeout_cb(pa_mainloop_api*a, pa_time_event* e, const struct timeval *tv, void *userdata) {
struct device_info *d = userdata;
pa_assert(d);
d->userdata->core->mainloop->time_restart(d->time_event, NULL);
if (d->sink && pa_sink_used_by(d->sink) <= 0 && pa_sink_get_state(d->sink) != PA_SINK_SUSPENDED) {
pa_log_info("Sink %s idle for too long, suspending ...", d->sink->name);
pa_sink_suspend(d->sink, TRUE);
}
if (d->source && pa_source_used_by(d->source) <= 0 && pa_source_get_state(d->source) != PA_SOURCE_SUSPENDED) {
pa_log_info("Source %s idle for too long, suspending ...", d->source->name);
pa_source_suspend(d->source, TRUE);
}
}
static void restart(struct device_info *d) {
struct timeval tv;
pa_assert(d);
pa_gettimeofday(&tv);
d->last_use = tv;
pa_timeval_add(&tv, d->userdata->timeout*1000000);
d->userdata->core->mainloop->time_restart(d->time_event, &tv);
if (d->sink)
pa_log_debug("Sink %s becomes idle.", d->sink->name);
if (d->source)
pa_log_debug("Source %s becomes idle.", d->source->name);
}
static void resume(struct device_info *d) {
pa_assert(d);
d->userdata->core->mainloop->time_restart(d->time_event, NULL);
if (d->sink) {
pa_sink_suspend(d->sink, FALSE);
pa_log_debug("Sink %s becomes busy.", d->sink->name);
}
if (d->source) {
pa_source_suspend(d->source, FALSE);
pa_log_debug("Source %s becomes busy.", d->source->name);
}
}
static pa_hook_result_t sink_input_fixate_hook_cb(pa_core *c, pa_sink_input_new_data *data, struct userdata *u) {
struct device_info *d;
pa_assert(c);
pa_assert(data);
pa_assert(u);
if ((d = pa_hashmap_get(u->device_infos, data->sink)))
resume(d);
return PA_HOOK_OK;
}
static pa_hook_result_t source_output_fixate_hook_cb(pa_core *c, pa_source_output_new_data *data, struct userdata *u) {
struct device_info *d;
pa_assert(c);
pa_assert(data);
pa_assert(u);
if ((d = pa_hashmap_get(u->device_infos, data->source)))
resume(d);
return PA_HOOK_OK;
}
static pa_hook_result_t sink_input_unlink_hook_cb(pa_core *c, pa_sink_input *s, struct userdata *u) {
pa_assert(c);
pa_sink_input_assert_ref(s);
pa_assert(u);
if (pa_sink_used_by(s->sink) <= 0) {
struct device_info *d;
if ((d = pa_hashmap_get(u->device_infos, s->sink)))
restart(d);
}
return PA_HOOK_OK;
}
static pa_hook_result_t source_output_unlink_hook_cb(pa_core *c, pa_source_output *s, struct userdata *u) {
pa_assert(c);
pa_source_output_assert_ref(s);
pa_assert(u);
if (pa_source_used_by(s->source) <= 0) {
struct device_info *d;
if ((d = pa_hashmap_get(u->device_infos, s->source)))
restart(d);
}
return PA_HOOK_OK;
}
static pa_hook_result_t sink_input_move_hook_cb(pa_core *c, pa_sink_input_move_hook_data *data, struct userdata *u) {
struct device_info *d;
pa_assert(c);
pa_assert(data);
pa_assert(u);
if ((d = pa_hashmap_get(u->device_infos, data->destination)))
resume(d);
if (pa_sink_used_by(data->sink_input->sink) <= 1)
if ((d = pa_hashmap_get(u->device_infos, data->sink_input->sink)))
restart(d);
return PA_HOOK_OK;
}
static pa_hook_result_t source_output_move_hook_cb(pa_core *c, pa_source_output_move_hook_data *data, struct userdata *u) {
struct device_info *d;
pa_assert(c);
pa_assert(data);
pa_assert(u);
if ((d = pa_hashmap_get(u->device_infos, data->destination)))
resume(d);
if (pa_source_used_by(data->source_output->source) <= 1)
if ((d = pa_hashmap_get(u->device_infos, data->source_output->source)))
restart(d);
return PA_HOOK_OK;
}
static pa_hook_result_t sink_input_state_changed_hook_cb(pa_core *c, pa_sink_input *s, struct userdata *u) {
struct device_info *d;
pa_sink_input_state_t state;
pa_assert(c);
pa_sink_input_assert_ref(s);
pa_assert(u);
state = pa_sink_input_get_state(s);
if (state == PA_SINK_INPUT_RUNNING || state == PA_SINK_INPUT_DRAINED)
if ((d = pa_hashmap_get(u->device_infos, s->sink)))
resume(d);
return PA_HOOK_OK;
}
static pa_hook_result_t source_output_state_changed_hook_cb(pa_core *c, pa_source_output *s, struct userdata *u) {
struct device_info *d;
pa_source_output_state_t state;
pa_assert(c);
pa_source_output_assert_ref(s);
pa_assert(u);
state = pa_source_output_get_state(s);
if (state == PA_SOURCE_OUTPUT_RUNNING)
if ((d = pa_hashmap_get(u->device_infos, s->source)))
resume(d);
return PA_HOOK_OK;
}
static pa_hook_result_t device_new_hook_cb(pa_core *c, pa_object *o, struct userdata *u) {
struct device_info *d;
pa_source *source;
pa_sink *sink;
pa_assert(c);
pa_object_assert_ref(o);
pa_assert(u);
source = pa_source_isinstance(o) ? PA_SOURCE(o) : NULL;
sink = pa_sink_isinstance(o) ? PA_SINK(o) : NULL;
pa_assert(source || sink);
d = pa_xnew(struct device_info, 1);
d->userdata = u;
d->source = source ? pa_source_ref(source) : NULL;
d->sink = sink ? pa_sink_ref(sink) : NULL;
d->time_event = c->mainloop->time_new(c->mainloop, NULL, timeout_cb, d);
pa_hashmap_put(u->device_infos, o, d);
if ((d->sink && pa_sink_used_by(d->sink) <= 0) ||
(d->source && pa_source_used_by(d->source) <= 0))
restart(d);
return PA_HOOK_OK;
}
static void device_info_free(struct device_info *d) {
pa_assert(d);
if (d->source)
pa_source_unref(d->source);
if (d->sink)
pa_sink_unref(d->sink);
d->userdata->core->mainloop->time_free(d->time_event);
pa_xfree(d);
}
static pa_hook_result_t device_unlink_hook_cb(pa_core *c, pa_object *o, struct userdata *u) {
struct device_info *d;
pa_assert(c);
pa_object_assert_ref(o);
pa_assert(u);
if ((d = pa_hashmap_remove(u->device_infos, o)))
device_info_free(d);
return PA_HOOK_OK;
}
static pa_hook_result_t device_state_changed_hook_cb(pa_core *c, pa_object *o, struct userdata *u) {
struct device_info *d;
pa_assert(c);
pa_object_assert_ref(o);
pa_assert(u);
if (!(d = pa_hashmap_get(u->device_infos, o)))
return PA_HOOK_OK;
if (pa_sink_isinstance(o)) {
pa_sink *s = PA_SINK(o);
pa_sink_state_t state = pa_sink_get_state(s);
if (pa_sink_used_by(s) <= 0) {
if (PA_SINK_IS_OPENED(state))
restart(d);
}
} else if (pa_source_isinstance(o)) {
pa_source *s = PA_SOURCE(o);
pa_source_state_t state = pa_source_get_state(s);
if (pa_source_used_by(s) <= 0) {
if (PA_SOURCE_IS_OPENED(state))
restart(d);
}
}
return PA_HOOK_OK;
}
int pa__init(pa_module*m) {
pa_modargs *ma = NULL;
struct userdata *u;
uint32_t timeout = 1;
uint32_t idx;
pa_sink *sink;
pa_source *source;
pa_assert(m);
if (!(ma = pa_modargs_new(m->argument, valid_modargs))) {
pa_log("Failed to parse module arguments.");
goto fail;
}
if (pa_modargs_get_value_u32(ma, "timeout", &timeout) < 0) {
pa_log("Failed to parse timeout value.");
goto fail;
}
m->userdata = u = pa_xnew(struct userdata, 1);
u->core = m->core;
u->timeout = timeout;
u->device_infos = pa_hashmap_new(pa_idxset_trivial_hash_func, pa_idxset_trivial_compare_func);
for (sink = pa_idxset_first(m->core->sinks, &idx); sink; sink = pa_idxset_next(m->core->sinks, &idx))
device_new_hook_cb(m->core, PA_OBJECT(sink), u);
for (source = pa_idxset_first(m->core->sources, &idx); source; source = pa_idxset_next(m->core->sources, &idx))
device_new_hook_cb(m->core, PA_OBJECT(source), u);
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);
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);
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);
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);
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);
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);
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);
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);
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);
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);
u->sink_input_move_slot = pa_hook_connect(&m->core->hooks[PA_CORE_HOOK_SINK_INPUT_MOVE], PA_HOOK_NORMAL, (pa_hook_cb_t) sink_input_move_hook_cb, u);
u->source_output_move_slot = pa_hook_connect(&m->core->hooks[PA_CORE_HOOK_SOURCE_OUTPUT_MOVE], PA_HOOK_NORMAL, (pa_hook_cb_t) source_output_move_hook_cb, u);
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);
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);
pa_modargs_free(ma);
return 0;
fail:
if (ma)
pa_modargs_free(ma);
return -1;
}
void pa__done(pa_module*m) {
struct userdata *u;
struct device_info *d;
pa_assert(m);
if (!m->userdata)
return;
u = m->userdata;
if (u->sink_new_slot)
pa_hook_slot_free(u->sink_new_slot);
if (u->sink_unlink_slot)
pa_hook_slot_free(u->sink_unlink_slot);
if (u->sink_state_changed_slot)
pa_hook_slot_free(u->sink_state_changed_slot);
if (u->source_new_slot)
pa_hook_slot_free(u->source_new_slot);
if (u->source_unlink_slot)
pa_hook_slot_free(u->source_unlink_slot);
if (u->source_state_changed_slot)
pa_hook_slot_free(u->source_state_changed_slot);
if (u->sink_input_new_slot)
pa_hook_slot_free(u->sink_input_new_slot);
if (u->sink_input_unlink_slot)
pa_hook_slot_free(u->sink_input_unlink_slot);
if (u->sink_input_move_slot)
pa_hook_slot_free(u->sink_input_move_slot);
if (u->sink_input_state_changed_slot)
pa_hook_slot_free(u->sink_input_state_changed_slot);
if (u->source_output_new_slot)
pa_hook_slot_free(u->source_output_new_slot);
if (u->source_output_unlink_slot)
pa_hook_slot_free(u->source_output_unlink_slot);
if (u->source_output_move_slot)
pa_hook_slot_free(u->source_output_move_slot);
if (u->source_output_state_changed_slot)
pa_hook_slot_free(u->source_output_state_changed_slot);
while ((d = pa_hashmap_steal_first(u->device_infos)))
device_info_free(d);
pa_hashmap_free(u->device_infos, NULL, NULL);
pa_xfree(u);
}
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