card-restore: Only use hooks for the events.

Notification events can be error prone, this patch removes the use of
notification events from card-restore and replaces them with hooks.
This commit is contained in:
poljar (Damir Jelić) 2013-01-15 23:51:30 +01:00 committed by Tanu Kaskinen
parent 477d6b71b6
commit a1a0ad1af2

View file

@ -62,10 +62,14 @@ static const char* const valid_modargs[] = {
struct userdata {
pa_core *core;
pa_module *module;
pa_subscription *subscription;
pa_hook_slot *card_new_hook_slot;
pa_hook_slot *card_put_hook_slot;
pa_hook_slot *card_profile_hook_slot;
pa_hook_slot *port_new_hook_slot;
pa_hook_slot *port_offset_hook_slot;
pa_time_event *save_time_event;
pa_database *database;
bool hooks_connected;
};
#define ENTRY_VERSION 2
@ -110,6 +114,28 @@ static struct entry* entry_new(void) {
return r;
}
static struct port_info *port_info_new(pa_device_port *port) {
struct port_info *p_info;
if (port) {
p_info = pa_xnew(struct port_info, 1);
p_info->name = pa_xstrdup(port->name);
p_info->offset = port->latency_offset;
} else
p_info = pa_xnew0(struct port_info, 1);
return p_info;
}
static void port_info_update(struct port_info *p_info, pa_device_port *port) {
pa_assert(p_info);
pa_assert(port);
pa_xfree(p_info->name);
p_info->name = pa_xstrdup(port->name);
p_info->offset = port->latency_offset;
}
static void port_info_free(struct port_info *p_info, void *userdata) {
pa_assert(p_info);
@ -126,6 +152,48 @@ static void entry_free(struct entry* e) {
pa_xfree(e);
}
static struct entry *entry_from_card(pa_card *card) {
struct port_info *p_info;
struct entry *entry;
pa_device_port *port;
void *state;
pa_assert(card);
entry = entry_new();
if (card->save_profile)
entry->profile = pa_xstrdup(card->active_profile->name);
PA_HASHMAP_FOREACH(port, card->ports, state) {
p_info = port_info_new(port);
pa_assert_se(pa_hashmap_put(entry->ports, p_info->name, p_info) >= 0);
}
return entry;
}
static bool entrys_equal(struct entry *a, struct entry *b) {
struct port_info *Ap_info, *Bp_info;
void *state;
pa_assert(a);
pa_assert(b);
if (!pa_streq(a->profile, b->profile) ||
pa_hashmap_size(a->ports) != pa_hashmap_size(b->ports))
return false;
PA_HASHMAP_FOREACH(Ap_info, a->ports, state) {
if ((Bp_info = pa_hashmap_get(b->ports, Ap_info->name))) {
if (Ap_info->offset != Bp_info->offset)
return false;
} else
return false;
}
return true;
}
static pa_bool_t entry_write(struct userdata *u, const char *name, const struct entry *e) {
pa_tagstruct *t;
pa_datum key, data;
@ -245,7 +313,7 @@ static struct entry* entry_read(struct userdata *u, const char *name) {
pa_tagstruct_gets64(t, &port_offset) < 0)
goto fail;
p_info = pa_xnew(struct port_info, 1);
p_info = port_info_new(NULL);
p_info->name = pa_xstrdup(port_name);
p_info->offset = port_offset;
@ -286,82 +354,125 @@ fail:
return NULL;
}
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;
void *state;
pa_card *card;
pa_device_port *p;
struct port_info *p_info;
pa_assert(c);
pa_assert(u);
if (t != (PA_SUBSCRIPTION_EVENT_CARD|PA_SUBSCRIPTION_EVENT_NEW) &&
t != (PA_SUBSCRIPTION_EVENT_CARD|PA_SUBSCRIPTION_EVENT_CHANGE))
return;
if (!(card = pa_idxset_get_by_index(c->cards, idx)))
return;
entry = entry_new();
if (card->save_profile)
entry->profile = pa_xstrdup(card->active_profile->name);
PA_HASHMAP_FOREACH(p, card->ports, state) {
p_info = pa_xnew(struct port_info, 1);
p_info->name = pa_xstrdup(p->name);
p_info->offset = p->latency_offset;
pa_assert_se(pa_hashmap_put(entry->ports, p_info->name, p_info) >= 0);
}
if ((old = entry_read(u, card->name))) {
bool dirty = false;
if (!card->save_profile)
entry->profile = pa_xstrdup(old->profile);
if (!pa_streq(old->profile, entry->profile) ||
pa_hashmap_size(old->ports) != pa_hashmap_size(entry->ports))
dirty = true;
else {
struct port_info *old_p_info;
PA_HASHMAP_FOREACH(old_p_info, old->ports, state) {
if ((p_info = pa_hashmap_get(entry->ports, old_p_info->name))) {
if (p_info->offset != old_p_info->offset) {
dirty = true;
break;
}
} else {
dirty = true;
break;
}
}
}
if (!dirty) {
entry_free(old);
entry_free(entry);
return;
}
entry_free(old);
}
static void show_full_info(pa_card *card) {
pa_assert(card);
if (card->save_profile)
pa_log_info("Storing profile and port latency offsets for card %s.", card->name);
else
pa_log_info("Storing port latency offsets for card %s.", card->name);
}
static pa_hook_result_t card_put_hook_callback(pa_core *c, pa_card *card, struct userdata *u) {
struct entry *entry, *old;
pa_assert(card);
entry = entry_from_card(card);
if ((old = entry_read(u, card->name))) {
if (!card->save_profile)
entry->profile = pa_xstrdup(old->profile);
if (entrys_equal(entry, old))
goto finish;
}
show_full_info(card);
if (entry_write(u, card->name, entry))
trigger_save(u);
finish:
entry_free(entry);
if (old)
entry_free(old);
return PA_HOOK_OK;
}
static pa_hook_result_t card_profile_change_callback(pa_core *c, pa_card *card, struct userdata *u) {
struct entry *entry;
pa_assert(card);
if (!card->save_profile)
return PA_HOOK_OK;
if ((entry = entry_read(u, card->name))) {
entry->profile = pa_xstrdup(card->active_profile->name);
pa_log_info("Storing card profile for card %s.", card->name);
} else {
entry = entry_from_card(card);
show_full_info(card);
}
if (entry_write(u, card->name, entry))
trigger_save(u);
entry_free(entry);
return PA_HOOK_OK;
}
static pa_hook_result_t card_port_add_callback(pa_core *c, pa_device_port *port, struct userdata *u) {
struct entry *entry;
pa_card *card;
pa_assert(port);
card = port->card;
if ((entry = entry_read(u, card->name))) {
struct port_info *p_info;
if ((p_info = pa_hashmap_get(entry->ports, port->name)))
port_info_update(p_info, port);
else {
p_info = port_info_new(port);
pa_assert_se(pa_hashmap_put(entry->ports, p_info->name, p_info) >= 0);
}
pa_log_info("Storing port info for port %s on card %s.", port->name, card->name);
} else {
entry = entry_from_card(card);
show_full_info(card);
}
if (entry_write(u, card->name, entry))
trigger_save(u);
entry_free(entry);
return PA_HOOK_OK;
}
static pa_hook_result_t port_offset_change_callback(pa_core *c, pa_device_port *port, struct userdata *u) {
struct entry *entry;
pa_card *card;
pa_assert(port);
card = port->card;
if ((entry = entry_read(u, card->name))) {
struct port_info *p_info;
if ((p_info = pa_hashmap_get(entry->ports, port->name)))
p_info->offset = port->latency_offset;
else {
p_info = port_info_new(port);
pa_assert_se(pa_hashmap_put(entry->ports, p_info->name, p_info) >= 0);
}
pa_log_info("Storing latency offset for port %s on card %s.", port->name, card->name);
} else {
entry_from_card(card);
show_full_info(card);
}
if (entry_write(u, card->name, entry))
trigger_save(u);
entry_free(entry);
return PA_HOOK_OK;
}
static pa_hook_result_t card_new_hook_callback(pa_core *c, pa_card_new_data *new_data, struct userdata *u) {
@ -403,8 +514,6 @@ int pa__init(pa_module*m) {
pa_modargs *ma = NULL;
struct userdata *u;
char *fname;
pa_card *card;
uint32_t idx;
pa_assert(m);
@ -417,9 +526,12 @@ int pa__init(pa_module*m) {
u->core = m->core;
u->module = m;
u->subscription = pa_subscription_new(m->core, PA_SUBSCRIPTION_MASK_CARD, subscribe_callback, u);
u->card_new_hook_slot = pa_hook_connect(&m->core->hooks[PA_CORE_HOOK_CARD_NEW], PA_HOOK_EARLY, (pa_hook_cb_t) card_new_hook_callback, u);
u->card_put_hook_slot = pa_hook_connect(&m->core->hooks[PA_CORE_HOOK_CARD_PUT], PA_HOOK_NORMAL, (pa_hook_cb_t) card_put_hook_callback, u);
u->card_profile_hook_slot = pa_hook_connect(&m->core->hooks[PA_CORE_HOOK_CARD_PROFILE_CHANGED], PA_HOOK_NORMAL, (pa_hook_cb_t) card_profile_change_callback, u);
u->port_new_hook_slot = pa_hook_connect(&m->core->hooks[PA_CORE_HOOK_PORT_ADDED], PA_HOOK_NORMAL, (pa_hook_cb_t) card_port_add_callback, u);
u->port_offset_hook_slot = pa_hook_connect(&m->core->hooks[PA_CORE_HOOK_PORT_LATENCY_OFFSET_CHANGED], PA_HOOK_NORMAL, (pa_hook_cb_t) port_offset_change_callback, u);
u->hooks_connected = true;
if (!(fname = pa_state_path("card-database", TRUE)))
goto fail;
@ -433,9 +545,6 @@ int pa__init(pa_module*m) {
pa_log_info("Successfully opened database file '%s'.", fname);
pa_xfree(fname);
PA_IDXSET_FOREACH(card, m->core->cards, idx)
subscribe_callback(m->core, PA_SUBSCRIPTION_EVENT_CARD|PA_SUBSCRIPTION_EVENT_NEW, card->index, u);
pa_modargs_free(ma);
return 0;
@ -456,11 +565,13 @@ void pa__done(pa_module*m) {
if (!(u = m->userdata))
return;
if (u->subscription)
pa_subscription_free(u->subscription);
if (u->card_new_hook_slot)
if (u->hooks_connected) {
pa_hook_slot_free(u->card_new_hook_slot);
pa_hook_slot_free(u->card_put_hook_slot);
pa_hook_slot_free(u->card_profile_hook_slot);
pa_hook_slot_free(u->port_new_hook_slot);
pa_hook_slot_free(u->port_offset_hook_slot);
}
if (u->save_time_event)
u->core->mainloop->time_free(u->save_time_event);