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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 2.1 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 <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-rescue-streams-symdef.h"
PA_MODULE_AUTHOR("Lennart Poettering");
PA_MODULE_DESCRIPTION("When a sink/source is removed, try to move their streams to the default sink/source");
PA_MODULE_VERSION(PACKAGE_VERSION);
PA_MODULE_LOAD_ONCE(TRUE);
static const char* const valid_modargs[] = {
NULL,
};
struct userdata {
pa_hook_slot *sink_slot, *source_slot;
};
static pa_hook_result_t sink_hook_callback(pa_core *c, pa_sink *sink, void* userdata) {
pa_sink_input *i;
pa_sink *target;
pa_assert(c);
pa_assert(sink);
/* There's no point in doing anything if the core is shut down anyway */
if (c->state == PA_CORE_SHUTDOWN)
return PA_HOOK_OK;
if (!pa_idxset_size(sink->inputs)) {
pa_log_debug("No sink inputs to move away.");
return PA_HOOK_OK;
}
if (!(target = pa_namereg_get(c, NULL, PA_NAMEREG_SINK)) || target == sink) {
uint32_t idx;
for (target = pa_idxset_first(c->sinks, &idx); target; target = pa_idxset_next(c->sinks, &idx))
if (target != sink)
break;
if (!target) {
pa_log_info("No evacuation sink found.");
return PA_HOOK_OK;
}
}
while ((i = pa_idxset_first(sink->inputs, NULL))) {
if (pa_sink_input_move_to(i, target, FALSE) < 0) {
pa_log_warn("Failed to move sink input %u \"%s\" to %s.", i->index, pa_proplist_gets(i->proplist, PA_PROP_APPLICATION_NAME), target->name);
return PA_HOOK_OK;
}
pa_log_info("Sucessfully moved sink input %u \"%s\" to %s.", i->index, pa_proplist_gets(i->proplist, PA_PROP_APPLICATION_NAME), target->name);
}
return PA_HOOK_OK;
}
static pa_hook_result_t source_hook_callback(pa_core *c, pa_source *source, void* userdata) {
pa_source_output *o;
pa_source *target;
pa_assert(c);
pa_assert(source);
/* There's no point in doing anything if the core is shut down anyway */
if (c->state == PA_CORE_SHUTDOWN)
return PA_HOOK_OK;
if (!pa_idxset_size(source->outputs)) {
pa_log_debug("No source outputs to move away.");
return PA_HOOK_OK;
}
if (!(target = pa_namereg_get(c, NULL, PA_NAMEREG_SOURCE)) || target == source) {
uint32_t idx;
for (target = pa_idxset_first(c->sources, &idx); target; target = pa_idxset_next(c->sources, &idx))
if (target != source && !target->monitor_of == !source->monitor_of)
break;
if (!target) {
pa_log_info("No evacuation source found.");
return PA_HOOK_OK;
}
}
pa_assert(target != source);
while ((o = pa_idxset_first(source->outputs, NULL))) {
if (pa_source_output_move_to(o, target, FALSE) < 0) {
pa_log_warn("Failed to move source output %u \"%s\" to %s.", o->index, pa_proplist_gets(o->proplist, PA_PROP_APPLICATION_NAME), target->name);
return PA_HOOK_OK;
}
pa_log_info("Sucessfully moved source output %u \"%s\" to %s.", o->index, pa_proplist_gets(o->proplist, PA_PROP_APPLICATION_NAME), target->name);
}
return PA_HOOK_OK;
}
int pa__init(pa_module*m) {
pa_modargs *ma = NULL;
struct userdata *u;
pa_assert(m);
if (!(ma = pa_modargs_new(m->argument, valid_modargs))) {
pa_log("Failed to parse module arguments");
return -1;
}
m->userdata = u = pa_xnew(struct userdata, 1);
u->sink_slot = pa_hook_connect(&m->core->hooks[PA_CORE_HOOK_SINK_UNLINK], PA_HOOK_LATE, (pa_hook_cb_t) sink_hook_callback, NULL);
u->source_slot = pa_hook_connect(&m->core->hooks[PA_CORE_HOOK_SOURCE_UNLINK], PA_HOOK_LATE, (pa_hook_cb_t) source_hook_callback, NULL);
pa_modargs_free(ma);
return 0;
}
void pa__done(pa_module*m) {
struct userdata *u;
pa_assert(m);
if (!m->userdata)
return;
u = m->userdata;
if (u->sink_slot)
pa_hook_slot_free(u->sink_slot);
if (u->source_slot)
pa_hook_slot_free(u->source_slot);
pa_xfree(u);
}
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