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,
+ 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
#include <stdio.h>
#include <stdlib.h>
#include <ctype.h>
-#include <gdbm.h>
#include <pulse/xmalloc.h>
#include <pulse/volume.h>
#include <pulsecore/protocol-native.h>
#include <pulsecore/pstream.h>
#include <pulsecore/pstream-util.h>
+#include <pulsecore/database.h>
#include "module-stream-restore-symdef.h"
PA_MODULE_DESCRIPTION("Automatically restore the volume/mute/device state of streams");
PA_MODULE_VERSION(PACKAGE_VERSION);
PA_MODULE_LOAD_ONCE(TRUE);
+PA_MODULE_USAGE(
+ "restore_device=<Save/restore sinks/sources?> "
+ "restore_volume=<Save/restore volumes?> "
+ "restore_muted=<Save/restore muted states?>");
#define SAVE_INTERVAL 10
+#define IDENTIFICATION_PROPERTY "module-stream-restore.id"
static const char* const valid_modargs[] = {
"restore_device",
*source_output_new_hook_slot,
*connection_unlink_hook_slot;
pa_time_event *save_time_event;
- GDBM_FILE gdbm_file;
+ pa_database* database;
pa_bool_t restore_device:1;
pa_bool_t restore_volume:1;
pa_idxset *subscribed;
};
+#define ENTRY_VERSION 2
+
struct entry {
- char device[PA_NAME_MAX];
+ uint8_t version;
+ pa_bool_t muted_valid:1, volume_valid:1, device_valid:1;
+ pa_bool_t muted:1;
pa_channel_map channel_map;
pa_cvolume volume;
- pa_bool_t muted:1;
-};
-
+ char device[PA_NAME_MAX];
+} PA_GCC_PACKED;
enum {
SUBCOMMAND_TEST,
u->core->mainloop->time_free(u->save_time_event);
u->save_time_event = NULL;
- gdbm_sync(u->gdbm_file);
+ pa_database_sync(u->database);
pa_log_info("Synced.");
}
static char *get_name(pa_proplist *p, const char *prefix) {
const char *r;
+ char *t;
if (!p)
return NULL;
+ if ((r = pa_proplist_gets(p, IDENTIFICATION_PROPERTY)))
+ return pa_xstrdup(r);
+
if ((r = pa_proplist_gets(p, PA_PROP_MEDIA_ROLE)))
- return pa_sprintf_malloc("%s-by-media-role:%s", prefix, r);
+ t = pa_sprintf_malloc("%s-by-media-role:%s", prefix, r);
else if ((r = pa_proplist_gets(p, PA_PROP_APPLICATION_ID)))
- return pa_sprintf_malloc("%s-by-application-id:%s", prefix, r);
+ t = pa_sprintf_malloc("%s-by-application-id:%s", prefix, r);
else if ((r = pa_proplist_gets(p, PA_PROP_APPLICATION_NAME)))
- return pa_sprintf_malloc("%s-by-application-name:%s", prefix, r);
+ t = pa_sprintf_malloc("%s-by-application-name:%s", prefix, r);
else if ((r = pa_proplist_gets(p, PA_PROP_MEDIA_NAME)))
- return pa_sprintf_malloc("%s-by-media-name:%s", prefix, r);
+ t = pa_sprintf_malloc("%s-by-media-name:%s", prefix, r);
+ else
+ t = pa_sprintf_malloc("%s-fallback:%s", prefix, r);
- return pa_sprintf_malloc("%s-fallback:%s", prefix, r);
+ pa_proplist_sets(p, IDENTIFICATION_PROPERTY, t);
+ return t;
}
-static struct entry* read_entry(struct userdata *u, char *name) {
- datum key, data;
+static struct entry* read_entry(struct userdata *u, const char *name) {
+ pa_datum key, data;
struct entry *e;
pa_assert(u);
pa_assert(name);
- key.dptr = name;
- key.dsize = (int) strlen(name);
+ key.data = (char*) name;
+ key.size = strlen(name);
- data = gdbm_fetch(u->gdbm_file, key);
+ pa_zero(data);
- if (!data.dptr)
+ if (!pa_database_get(u->database, &key, &data))
goto fail;
- if (data.dsize != sizeof(struct entry)) {
- pa_log_warn("Database contains entry for stream %s of wrong size %lu != %lu", name, (unsigned long) data.dsize, (unsigned long) sizeof(struct entry));
+ if (data.size != sizeof(struct entry)) {
+ /* This is probably just a database upgrade, hence let's not
+ * consider this more than a debug message */
+ pa_log_debug("Database contains entry for stream %s of wrong size %lu != %lu. Probably due to uprade, ignoring.", name, (unsigned long) data.size, (unsigned long) sizeof(struct entry));
goto fail;
}
- e = (struct entry*) data.dptr;
+ e = (struct entry*) data.data;
+
+ if (e->version != ENTRY_VERSION) {
+ pa_log_debug("Version of database entry for stream %s doesn't match our version. Probably due to upgrade, ignoring.", name);
+ goto fail;
+ }
if (!memchr(e->device, 0, sizeof(e->device))) {
pa_log_warn("Database contains entry for stream %s with missing NUL byte in device name", name);
goto fail;
}
- if (!(pa_cvolume_valid(&e->volume))) {
- pa_log_warn("Invalid volume stored in database for stream %s", name);
+ if (e->device_valid && !pa_namereg_is_valid_name(e->device)) {
+ pa_log_warn("Invalid device name stored in database for stream %s", name);
goto fail;
}
- if (!(pa_channel_map_valid(&e->channel_map))) {
+ if (e->volume_valid && !pa_channel_map_valid(&e->channel_map)) {
pa_log_warn("Invalid channel map stored in database for stream %s", name);
goto fail;
}
- if (e->volume.channels != e->channel_map.channels) {
- pa_log_warn("Volume and channel map don't match in database entry for stream %s", name);
+ if (e->volume_valid && (!pa_cvolume_valid(&e->volume) || !pa_cvolume_compatible_with_channel_map(&e->volume, &e->channel_map))) {
+ pa_log_warn("Invalid volume stored in database for stream %s", name);
goto fail;
}
fail:
- pa_xfree(data.dptr);
+ pa_datum_free(&data);
return NULL;
}
u->save_time_event = u->core->mainloop->time_new(u->core->mainloop, &tv, save_time_callback, u);
}
+static pa_bool_t entries_equal(const struct entry *a, const struct entry *b) {
+ pa_cvolume t;
+
+ pa_assert(a);
+ pa_assert(b);
+
+ if (a->device_valid != b->device_valid ||
+ (a->device_valid && strncmp(a->device, b->device, sizeof(a->device))))
+ return FALSE;
+
+ if (a->muted_valid != b->muted_valid ||
+ (a->muted_valid && (a->muted != b->muted)))
+ return FALSE;
+
+ t = b->volume;
+ if (a->volume_valid != b->volume_valid ||
+ (a->volume_valid && !pa_cvolume_equal(pa_cvolume_remap(&t, &b->channel_map, &a->channel_map), &a->volume)))
+ return FALSE;
+
+ return TRUE;
+}
+
static void subscribe_callback(pa_core *c, pa_subscription_event_type_t t, uint32_t idx, void *userdata) {
struct userdata *u = userdata;
struct entry entry, *old;
char *name;
- datum key, data;
+ pa_datum key, data;
pa_assert(c);
pa_assert(u);
t != (PA_SUBSCRIPTION_EVENT_SOURCE_OUTPUT|PA_SUBSCRIPTION_EVENT_CHANGE))
return;
- memset(&entry, 0, sizeof(entry));
+ pa_zero(entry);
+ entry.version = ENTRY_VERSION;
if ((t & PA_SUBSCRIPTION_EVENT_FACILITY_MASK) == PA_SUBSCRIPTION_EVENT_SINK_INPUT) {
pa_sink_input *sink_input;
if (!(name = get_name(sink_input->proplist, "sink-input")))
return;
- entry.channel_map = sink_input->channel_map;
- entry.volume = *pa_sink_input_get_volume(sink_input);
- entry.muted = pa_sink_input_get_mute(sink_input);
- pa_strlcpy(entry.device, sink_input->sink->name, sizeof(entry.device));
+ if ((old = read_entry(u, name)))
+ entry = *old;
+
+ if (sink_input->save_volume) {
+ entry.channel_map = sink_input->channel_map;
+ pa_sink_input_get_volume(sink_input, &entry.volume, FALSE);
+ entry.volume_valid = TRUE;
+ }
+
+ if (sink_input->save_muted) {
+ entry.muted = pa_sink_input_get_mute(sink_input);
+ entry.muted_valid = TRUE;
+ }
+
+ if (sink_input->save_sink) {
+ pa_strlcpy(entry.device, sink_input->sink->name, sizeof(entry.device));
+ entry.device_valid = TRUE;
+ }
} else {
pa_source_output *source_output;
if (!(name = get_name(source_output->proplist, "source-output")))
return;
- /* The following fields are filled in to make the entry valid
- * according to read_entry(). They are otherwise useless */
- entry.channel_map = source_output->channel_map;
- pa_cvolume_reset(&entry.volume, entry.channel_map.channels);
- pa_strlcpy(entry.device, source_output->source->name, sizeof(entry.device));
- }
+ if ((old = read_entry(u, name)))
+ entry = *old;
- if ((old = read_entry(u, name))) {
+ if (source_output->save_source) {
+ pa_strlcpy(entry.device, source_output->source->name, sizeof(entry.device));
+ entry.device_valid = source_output->save_source;
+ }
+ }
- if (pa_cvolume_equal(pa_cvolume_remap(&old->volume, &old->channel_map, &entry.channel_map), &entry.volume) &&
- !old->muted == !entry.muted &&
- strcmp(old->device, entry.device) == 0) {
+ if (old) {
+ if (entries_equal(old, &entry)) {
pa_xfree(old);
pa_xfree(name);
return;
pa_xfree(old);
}
- key.dptr = name;
- key.dsize = (int) strlen(name);
+ key.data = name;
+ key.size = strlen(name);
- data.dptr = (void*) &entry;
- data.dsize = sizeof(entry);
+ data.data = &entry;
+ data.size = sizeof(entry);
pa_log_info("Storing volume/mute/device for stream %s.", name);
- gdbm_store(u->gdbm_file, key, data, GDBM_REPLACE);
+ pa_database_set(u->database, &key, &data, TRUE);
pa_xfree(name);
pa_assert(new_data);
+ if (!u->restore_device)
+ return PA_HOOK_OK;
+
if (!(name = get_name(new_data->proplist, "sink-input")))
return PA_HOOK_OK;
if ((e = read_entry(u, name))) {
- pa_sink *s;
- if (u->restore_device &&
- (s = pa_namereg_get(c, e->device, PA_NAMEREG_SINK, TRUE))) {
+ if (e->device_valid) {
+ pa_sink *s;
- if (!new_data->sink) {
- pa_log_info("Restoring device for stream %s.", name);
- new_data->sink = s;
- } else
- pa_log_info("Not restore device for stream %s, because already set.", name);
+ if ((s = pa_namereg_get(c, e->device, PA_NAMEREG_SINK))) {
+ if (!new_data->sink) {
+ pa_log_info("Restoring device for stream %s.", name);
+ new_data->sink = s;
+ new_data->save_sink = FALSE;
+ } else
+ pa_log_info("Not restoring device for stream %s, because already set.", name);
+ }
}
pa_xfree(e);
pa_assert(new_data);
+ if (!u->restore_volume && !u->restore_muted)
+ return PA_HOOK_OK;
+
if (!(name = get_name(new_data->proplist, "sink-input")))
return PA_HOOK_OK;
if ((e = read_entry(u, name))) {
- if (u->restore_volume) {
+ if (u->restore_volume && e->volume_valid) {
if (!new_data->volume_is_set) {
+ pa_cvolume v;
+
pa_log_info("Restoring volume for sink input %s.", name);
- pa_sink_input_new_data_set_volume(new_data, pa_cvolume_remap(&e->volume, &e->channel_map, &new_data->channel_map));
+
+ v = e->volume;
+ pa_cvolume_remap(&v, &e->channel_map, &new_data->channel_map);
+ pa_sink_input_new_data_set_volume(new_data, &v);
+
+ new_data->volume_is_absolute = FALSE;
+ new_data->save_volume = FALSE;
} else
pa_log_debug("Not restoring volume for sink input %s, because already set.", name);
}
- if (u->restore_muted) {
+ if (u->restore_muted && e->muted_valid) {
+
if (!new_data->muted_is_set) {
pa_log_info("Restoring mute state for sink input %s.", name);
pa_sink_input_new_data_set_muted(new_data, e->muted);
+ new_data->save_muted = FALSE;
} else
pa_log_debug("Not restoring mute state for sink input %s, because already set.", name);
}
pa_assert(new_data);
+ if (!u->restore_device)
+ return PA_HOOK_OK;
+
+ if (new_data->direct_on_input)
+ return PA_HOOK_OK;
+
if (!(name = get_name(new_data->proplist, "source-output")))
return PA_HOOK_OK;
if ((e = read_entry(u, name))) {
pa_source *s;
- if (u->restore_device &&
- !new_data->direct_on_input &&
- (s = pa_namereg_get(c, e->device, PA_NAMEREG_SOURCE, TRUE))) {
-
- if (!new_data->source) {
- pa_log_info("Restoring device for stream %s.", name);
- new_data->source = s;
- } else
- pa_log_info("Not restoring device for stream %s, because already set", name);
+ if (e->device_valid) {
+ if ((s = pa_namereg_get(c, e->device, PA_NAMEREG_SOURCE))) {
+ if (!new_data->source) {
+ pa_log_info("Restoring device for stream %s.", name);
+ new_data->source = s;
+ new_data->save_source = FALSE;
+ } else
+ pa_log_info("Not restoring device for stream %s, because already set", name);
+ }
}
pa_xfree(e);
#define EXT_VERSION 1
-static void clear_db(struct userdata *u) {
- datum key;
-
- pa_assert(u);
-
- key = gdbm_firstkey(u->gdbm_file);
- while (key.dptr) {
- datum next_key;
- next_key = gdbm_nextkey(u->gdbm_file, key);
-
- gdbm_delete(u->gdbm_file, key);
- pa_xfree(key.dptr);
-
- key = next_key;
- }
-
- gdbm_reorganize(u->gdbm_file);
-}
-
static void apply_entry(struct userdata *u, const char *name, struct entry *e) {
pa_sink_input *si;
pa_source_output *so;
if (!(n = get_name(si->proplist, "sink-input")))
continue;
- if (strcmp(name, n)) {
+ if (!pa_streq(name, n)) {
pa_xfree(n);
continue;
}
+ pa_xfree(n);
- if (u->restore_volume) {
- pa_cvolume v = e->volume;
+ if (u->restore_volume && e->volume_valid) {
+ pa_cvolume v;
+
+ v = e->volume;
pa_log_info("Restoring volume for sink input %s.", name);
- pa_sink_input_set_volume(si, pa_cvolume_remap(&v, &e->channel_map, &si->channel_map));
+ pa_sink_input_set_volume(si, pa_cvolume_remap(&v, &e->channel_map, &si->channel_map), FALSE, FALSE);
}
- if (u->restore_muted) {
+ if (u->restore_muted && e->muted_valid) {
pa_log_info("Restoring mute state for sink input %s.", name);
- pa_sink_input_set_mute(si, e->muted);
+ pa_sink_input_set_mute(si, e->muted, FALSE);
}
if (u->restore_device &&
- (s = pa_namereg_get(u->core, e->device, PA_NAMEREG_SOURCE, TRUE))) {
+ e->device_valid &&
+ (s = pa_namereg_get(u->core, e->device, PA_NAMEREG_SINK))) {
pa_log_info("Restoring device for stream %s.", name);
- pa_sink_input_move_to(si, s);
+ pa_sink_input_move_to(si, s, FALSE);
}
}
if (!(n = get_name(so->proplist, "source-output")))
continue;
- if (strcmp(name, n)) {
+ if (!pa_streq(name, n)) {
pa_xfree(n);
continue;
}
+ pa_xfree(n);
if (u->restore_device &&
- (s = pa_namereg_get(u->core, e->device, PA_NAMEREG_SOURCE, TRUE))) {
+ e->device_valid &&
+ (s = pa_namereg_get(u->core, e->device, PA_NAMEREG_SOURCE))) {
pa_log_info("Restoring device for stream %s.", name);
- pa_source_output_move_to(so, s);
+ pa_source_output_move_to(so, s, FALSE);
}
}
}
#if 0
static void dump_database(struct userdata *u) {
- datum key;
+ pa_datum key;
+ pa_bool_t done;
+
+ done = !pa_database_first(u->database, &key, NULL);
- key = gdbm_firstkey(u->gdbm_file);
- while (key.dptr) {
- datum next_key;
+ while (!done) {
+ pa_datum next_key;
struct entry *e;
char *name;
- next_key = gdbm_nextkey(u->gdbm_file, key);
+ done = !pa_database_next(u->database, &key, &next_key, NULL);
- name = pa_xstrndup(key.dptr, key.dsize);
- pa_xfree(key.dptr);
+ name = pa_xstrndup(key.data, key.size);
+ pa_datum_free(&key);
if ((e = read_entry(u, name))) {
char t[256];
pa_log("name=%s", name);
- pa_log("device=%s", e->device);
+ pa_log("device=%s %s", e->device, pa_yes_no(e->device_valid));
pa_log("channel_map=%s", pa_channel_map_snprint(t, sizeof(t), &e->channel_map));
- pa_log("volume=%s", pa_cvolume_snprint(t, sizeof(t), &e->volume));
- pa_log("mute=%s", pa_yes_no(e->muted));
+ pa_log("volume=%s %s", pa_cvolume_snprint(t, sizeof(t), &e->volume), pa_yes_no(e->volume_valid));
+ pa_log("mute=%s %s", pa_yes_no(e->muted), pa_yes_no(e->volume_valid));
pa_xfree(e);
}
}
case SUBCOMMAND_READ: {
- datum key;
+ pa_datum key;
+ pa_bool_t done;
if (!pa_tagstruct_eof(t))
goto fail;
- key = gdbm_firstkey(u->gdbm_file);
- while (key.dptr) {
- datum next_key;
+ done = !pa_database_first(u->database, &key, NULL);
+
+ while (!done) {
+ pa_datum next_key;
struct entry *e;
char *name;
- next_key = gdbm_nextkey(u->gdbm_file, key);
+ done = !pa_database_next(u->database, &key, &next_key, NULL);
- name = pa_xstrndup(key.dptr, (size_t) key.dsize);
- pa_xfree(key.dptr);
+ name = pa_xstrndup(key.data, key.size);
+ pa_datum_free(&key);
if ((e = read_entry(u, name))) {
+ pa_cvolume r;
+ pa_channel_map cm;
+
pa_tagstruct_puts(reply, name);
- pa_tagstruct_put_channel_map(reply, &e->channel_map);
- pa_tagstruct_put_cvolume(reply, &e->volume);
- pa_tagstruct_puts(reply, e->device);
- pa_tagstruct_put_boolean(reply, e->muted);
+ pa_tagstruct_put_channel_map(reply, e->volume_valid ? &e->channel_map : pa_channel_map_init(&cm));
+ pa_tagstruct_put_cvolume(reply, e->volume_valid ? &e->volume : pa_cvolume_init(&r));
+ pa_tagstruct_puts(reply, e->device_valid ? e->device : NULL);
+ pa_tagstruct_put_boolean(reply, e->muted_valid ? e->muted : FALSE);
pa_xfree(e);
}
goto fail;
if (mode == PA_UPDATE_SET)
- clear_db(u);
+ pa_database_clear(u->database);
while (!pa_tagstruct_eof(t)) {
const char *name, *device;
pa_bool_t muted;
struct entry entry;
- datum key, data;
- int k;
+ pa_datum key, data;
- memset(&entry, 0, sizeof(entry));
+ pa_zero(entry);
+ entry.version = ENTRY_VERSION;
if (pa_tagstruct_gets(t, &name) < 0 ||
pa_tagstruct_get_channel_map(t, &entry.channel_map) ||
pa_tagstruct_get_boolean(t, &muted) < 0)
goto fail;
- if (entry.channel_map.channels != entry.volume.channels)
+ if (!name || !*name)
goto fail;
+ entry.volume_valid = entry.volume.channels > 0;
+
+ if (entry.volume_valid)
+ if (!pa_cvolume_compatible_with_channel_map(&entry.volume, &entry.channel_map))
+ goto fail;
+
entry.muted = muted;
- pa_strlcpy(entry.device, device, sizeof(entry.device));
+ entry.muted_valid = TRUE;
+
+ if (device)
+ pa_strlcpy(entry.device, device, sizeof(entry.device));
+ entry.device_valid = !!entry.device[0];
+
+ if (entry.device_valid &&
+ !pa_namereg_is_valid_name(entry.device))
+ goto fail;
- key.dptr = (void*) name;
- key.dsize = (int) strlen(name);
+ key.data = (char*) name;
+ key.size = strlen(name);
- data.dptr = (void*) &entry;
- data.dsize = sizeof(entry);
+ data.data = &entry;
+ data.size = sizeof(entry);
- if ((k = gdbm_store(u->gdbm_file, key, data, mode == PA_UPDATE_REPLACE ? GDBM_REPLACE : GDBM_INSERT)) == 0)
+ if (pa_database_set(u->database, &key, &data, mode == PA_UPDATE_REPLACE) == 0)
if (apply_immediately)
apply_entry(u, name, &entry);
}
while (!pa_tagstruct_eof(t)) {
const char *name;
- datum key;
+ pa_datum key;
if (pa_tagstruct_gets(t, &name) < 0)
goto fail;
- key.dptr = (void*) name;
- key.dsize = (int) strlen(name);
+ key.data = (char*) name;
+ key.size = strlen(name);
- gdbm_delete(u->gdbm_file, key);
+ pa_database_unset(u->database, &key);
}
trigger_save(u);
int pa__init(pa_module*m) {
pa_modargs *ma = NULL;
struct userdata *u;
- char *fname, *fn;
+ char *fname;
pa_sink_input *si;
pa_source_output *so;
uint32_t idx;
pa_bool_t restore_device = TRUE, restore_volume = TRUE, restore_muted = TRUE;
- int gdbm_cache_size;
pa_assert(m);
if (!restore_muted && !restore_volume && !restore_device)
pa_log_warn("Neither restoring volume, nor restoring muted, nor restoring device enabled!");
- m->userdata = u = pa_xnew(struct userdata, 1);
+ m->userdata = u = pa_xnew0(struct userdata, 1);
u->core = m->core;
u->module = m;
- u->save_time_event = NULL;
u->restore_device = restore_device;
u->restore_volume = restore_volume;
u->restore_muted = restore_muted;
- u->gdbm_file = NULL;
u->subscribed = pa_idxset_new(pa_idxset_trivial_hash_func, pa_idxset_trivial_compare_func);
u->protocol = pa_native_protocol_get(m->core);
if (restore_volume || restore_muted)
u->sink_input_fixate_hook_slot = pa_hook_connect(&m->core->hooks[PA_CORE_HOOK_SINK_INPUT_FIXATE], PA_HOOK_EARLY, (pa_hook_cb_t) sink_input_fixate_hook_callback, u);
- /* We include the host identifier in the file name because gdbm
- * files are CPU dependant, and we don't want things to go wrong
- * if we are on a multiarch system. */
-
- fn = pa_sprintf_malloc("stream-volumes."CANONICAL_HOST".gdbm");
- fname = pa_state_path(fn, TRUE);
- pa_xfree(fn);
-
- if (!fname)
+ if (!(fname = pa_state_path("stream-volumes", TRUE)))
goto fail;
- if (!(u->gdbm_file = gdbm_open(fname, 0, GDBM_WRCREAT, 0600, NULL))) {
- pa_log("Failed to open volume database '%s': %s", fname, gdbm_strerror(gdbm_errno));
+ if (!(u->database = pa_database_open(fname, TRUE))) {
+ pa_log("Failed to open volume database '%s': %s", fname, pa_cstrerror(errno));
pa_xfree(fname);
goto fail;
}
- /* By default the cache of gdbm is rather large, let's reduce it a bit to save memory */
- gdbm_cache_size = 10;
- gdbm_setopt(u->gdbm_file, GDBM_CACHESIZE, &gdbm_cache_size, sizeof(gdbm_cache_size));
-
pa_log_info("Sucessfully opened database file '%s'.", fname);
pa_xfree(fname);
if (u->save_time_event)
u->core->mainloop->time_free(u->save_time_event);
- if (u->gdbm_file)
- gdbm_close(u->gdbm_file);
+ if (u->database)
+ pa_database_close(u->database);
if (u->protocol) {
pa_native_protocol_remove_ext(u->protocol, m);