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Purism-Calls/src/calls-manager.c
Evangelos Ribeiro Tzaras babd013bd7 Remove CallsCredentials and adapt to changes 
The provider knows best which credentials it needs and CallsCredentials
was not generic to begin with, so get rid of it.
2021-07-20 10:17:17 +02:00

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/*
* Copyright (C) 2020 Purism SPC
*
* This file is part of Calls.
*
* Calls is free software: you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* Calls 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 General Public License
* along with Calls. If not, see <http://www.gnu.org/licenses/>.
*
* Author: Julian Sparber <julian.sparber@puri.sm>
* Evangelos Ribeiro Tzaras <evangelos.tzaras@puri.sm>
*
* SPDX-License-Identifier: GPL-3.0-or-later
*
*/
#define G_LOG_DOMAIN "CallsManager"
#include "config.h"
#include "calls-application.h"
#include "calls-account-provider.h"
#include "calls-contacts-provider.h"
#include "calls-manager.h"
#include "calls-provider.h"
#include "calls-ussd.h"
#include "enum-types.h"
#include <glib/gi18n.h>
#include <libpeas/peas.h>
struct _CallsManager
{
GObject parent_instance;
GHashTable *providers;
/* This is the protocols supported in principle. This is collected from the loaded
providers and does not imply that there are any origins able to handle a given protocol.
See origins_by_protocol for a GListStore of suitable origins per protocol.
*/
GPtrArray *supported_protocols;
GListStore *origins;
/* origins_by_protocol maps protocol names to GListStore's of suitable origins */
GHashTable *origins_by_protocol;
CallsContactsProvider *contacts_provider;
CallsManagerState state;
CallsCall *primary_call;
char *country_code;
};
G_DEFINE_TYPE (CallsManager, calls_manager, G_TYPE_OBJECT);
enum {
PROP_0,
PROP_STATE,
PROP_COUNTRY_CODE,
PROP_LAST_PROP,
};
static GParamSpec *props[PROP_LAST_PROP];
enum {
SIGNAL_CALL_ADD,
SIGNAL_CALL_REMOVE,
/* TODO: currently this event isn't emitted since the plugins don't give use
* a usable error or error message. */
SIGNAL_ERROR,
USSD_ADDED,
USSD_CANCELLED,
USSD_STATE_CHANGED,
SIGNAL_LAST_SIGNAL,
};
static guint signals [SIGNAL_LAST_SIGNAL];
static void
set_state (CallsManager *self, CallsManagerState state)
{
if (self->state == state)
return;
self->state = state;
g_object_notify_by_pspec (G_OBJECT (self), props[PROP_STATE]);
}
static void
update_state (CallsManager *self)
{
guint n_items;
GHashTableIter iter;
gpointer key;
gpointer value;
g_assert (CALLS_IS_MANAGER (self));
if (g_hash_table_size (self->providers) == 0) {
set_state (self, CALLS_MANAGER_STATE_NO_PROVIDER);
return;
}
g_hash_table_iter_init (&iter, self->providers);
while (g_hash_table_iter_next (&iter, &key, &value)) {
CallsProvider *provider = CALLS_PROVIDER (value);
if (calls_provider_is_modem (provider) && !calls_provider_is_operational (provider)) {
set_state (self, CALLS_MANAGER_STATE_NO_VOICE_MODEM);
return;
}
}
n_items = g_list_model_get_n_items (G_LIST_MODEL (self->origins));
if (n_items)
set_state (self, CALLS_MANAGER_STATE_READY);
else
set_state (self, CALLS_MANAGER_STATE_NO_ORIGIN);
}
static gboolean
check_supported_protocol (CallsManager *self,
const char *protocol)
{
guint index;
g_assert (CALLS_IS_MANAGER (self));
g_assert (protocol);
if (self->supported_protocols->len > 0)
return g_ptr_array_find_with_equal_func (self->supported_protocols,
protocol,
g_str_equal,
&index);
return FALSE;
}
/* This function will update self->supported_protocols from available provider plugins */
static void
update_protocols (CallsManager *self)
{
GHashTableIter iter;
gpointer key, value;
const char * const *protocols;
g_assert (CALLS_IS_MANAGER (self));
g_ptr_array_remove_range (self->supported_protocols,
0, self->supported_protocols->len);
g_hash_table_iter_init (&iter, self->providers);
while (g_hash_table_iter_next (&iter, &key, &value)) {
const char *name = key;
CallsProvider *provider = CALLS_PROVIDER (value);
protocols = calls_provider_get_protocols (provider);
if (protocols == NULL) {
g_debug ("Plugin %s does not provide any protocols", name);
continue;
}
for (guint i = 0; protocols[i] != NULL; i++) {
if (!check_supported_protocol (self, protocols[i]))
g_ptr_array_add (self->supported_protocols, g_strdup (protocols[i]));
if (!g_hash_table_contains (self->origins_by_protocol, protocols[i])) {
/* Add a new GListStore if there's none already.
* Actually adding origins to self->origins_by_protocol is done
* in rebuild_origins_by_protocol()
*/
GListStore *store = g_list_store_new (CALLS_TYPE_ORIGIN);
g_hash_table_insert (self->origins_by_protocol,
g_strdup (protocols[i]),
store);
}
}
}
update_state (self);
}
static void
add_call (CallsManager *self, CallsCall *call, CallsOrigin *origin)
{
g_return_if_fail (CALLS_IS_MANAGER (self));
g_return_if_fail (CALLS_IS_ORIGIN (origin));
g_return_if_fail (CALLS_IS_CALL (call));
g_signal_emit (self, signals[SIGNAL_CALL_ADD], 0, call, origin);
if (self->primary_call == NULL)
self->primary_call = call;
else
calls_call_hang_up (call);
}
static void
remove_call (CallsManager *self, CallsCall *call, gchar *reason, CallsOrigin *origin)
{
g_return_if_fail (CALLS_IS_MANAGER (self));
g_return_if_fail (CALLS_IS_ORIGIN (origin));
g_return_if_fail (CALLS_IS_CALL (call));
/* We ignore the reason for now, because it doesn't give any usefull information */
g_signal_emit (self, signals[SIGNAL_CALL_REMOVE], 0, call, origin);
if (self->primary_call == call)
self->primary_call = NULL;
}
static void
ussd_added_cb (CallsManager *self,
char *response,
CallsUssd *ussd)
{
g_assert (CALLS_IS_MANAGER (self));
g_assert (CALLS_IS_USSD (ussd));
g_signal_emit (self, signals[USSD_ADDED], 0, ussd, response);
}
static void
ussd_cancelled_cb (CallsManager *self,
CallsUssd *ussd,
char *response)
{
g_assert (CALLS_IS_MANAGER (self));
g_assert (CALLS_IS_USSD (ussd));
g_signal_emit (self, signals[USSD_CANCELLED], 0, ussd);
}
static void
ussd_state_changed_cb (CallsManager *self,
CallsUssd *ussd)
{
g_assert (CALLS_IS_MANAGER (self));
g_assert (CALLS_IS_USSD (ussd));
g_signal_emit (self, signals[USSD_STATE_CHANGED], 0, ussd);
}
static void
update_country_code_cb (CallsOrigin *origin,
GParamSpec *pspec,
CallsManager *self)
{
CallsApplication *app;
g_autofree char *country_code = NULL;
g_assert (CALLS_IS_MANAGER (self));
app = CALLS_APPLICATION (g_application_get_default ());
g_object_get (G_OBJECT (origin), "country-code", &country_code, NULL);
if (country_code && g_strcmp0 (country_code, self->country_code) == 0)
return;
g_free (self->country_code);
self->country_code = country_code;
calls_application_set_country_code_setting (app, country_code);
}
static void
add_origin (CallsManager *self, CallsOrigin *origin)
{
g_autofree const char *name = NULL;
g_assert (CALLS_IS_MANAGER (self));
g_assert (CALLS_IS_ORIGIN (origin));
name = calls_origin_get_name (origin);
g_debug ("Adding origin %s (%p)", name, origin);
g_list_store_append (self->origins, origin);
g_signal_connect_object (origin,
"notify::country-code",
G_CALLBACK (update_country_code_cb),
self,
G_CONNECT_AFTER);
g_signal_connect_swapped (origin, "call-added", G_CALLBACK (add_call), self);
g_signal_connect_swapped (origin, "call-removed", G_CALLBACK (remove_call), self);
if (CALLS_IS_USSD (origin))
{
g_signal_connect_swapped (origin, "ussd-added", G_CALLBACK (ussd_added_cb), self);
g_signal_connect_swapped (origin, "ussd-cancelled", G_CALLBACK (ussd_cancelled_cb), self);
g_signal_connect_swapped (origin, "ussd-state-changed", G_CALLBACK (ussd_state_changed_cb), self);
}
calls_origin_foreach_call (origin, (CallsOriginForeachCallFunc) add_call, self);
}
static void
remove_call_cb (gpointer self, CallsCall *call, CallsOrigin *origin)
{
remove_call (self, call, NULL, origin);
}
static void
remove_origin (CallsManager *self, CallsOrigin *origin)
{
g_autofree const char *name = NULL;
guint position;
g_assert (CALLS_IS_MANAGER (self));
g_assert (CALLS_IS_ORIGIN (origin));
name = calls_origin_get_name (origin);
g_debug ("Removing origin %s (%p)", name, origin);
g_signal_handlers_disconnect_by_data (origin, self);
calls_origin_foreach_call (origin, remove_call_cb, self);
if (!g_list_store_find (self->origins, origin, &position))
g_warning ("Origin %p not found in list store while trying to remove it",
origin);
else
g_list_store_remove (self->origins, position);
update_state (self);
}
/* rebuild_origins_by_protocols() when any origins were added or removed */
static void
rebuild_origins_by_protocols (CallsManager *self)
{
GHashTableIter iter;
gpointer key, value;
guint n_origins;
g_assert (CALLS_IS_MANAGER (self));
/* Remove everything */
g_hash_table_iter_init (&iter, self->origins_by_protocol);
while (g_hash_table_iter_next (&iter, &key, &value)) {
GListStore *store = G_LIST_STORE (value);
g_list_store_remove_all (store);
}
/* Iterate over all origins and check which protocols they support */
n_origins = g_list_model_get_n_items (G_LIST_MODEL (self->origins));
for (guint i = 0; i < n_origins; i++) {
g_autoptr (CallsOrigin) origin =
g_list_model_get_item (G_LIST_MODEL (self->origins), i);
for (guint j = 0; j < self->supported_protocols->len; j++) {
char *protocol = g_ptr_array_index (self->supported_protocols, j);
GListStore *store =
G_LIST_STORE (g_hash_table_lookup (self->origins_by_protocol, protocol));
g_assert (store);
if (calls_origin_supports_protocol (origin, protocol))
g_list_store_append (store, origin);
}
}
}
static void
remove_provider (CallsManager *self,
const char *name)
{
GListModel *origins;
guint n_items;
CallsProvider *provider;
g_assert (CALLS_IS_MANAGER (self));
g_assert (name);
provider = g_hash_table_lookup (self->providers, name);
if (provider == NULL) {
g_warning ("Trying to remove provider %s which has not been found", name);
return;
}
g_debug ("Remove provider: %s", name);
g_signal_handlers_disconnect_by_data (provider, self);
origins = calls_provider_get_origins (provider);
g_signal_handlers_disconnect_by_data (origins, self);
n_items = g_list_model_get_n_items (origins);
for (guint i = 0; i < n_items; i++) {
g_autoptr(CallsOrigin) origin = NULL;
origin = g_list_model_get_item (origins, i);
remove_origin (self, origin);
}
g_hash_table_remove (self->providers, name);
calls_provider_unload_plugin (name);
update_protocols (self);
update_state (self);
rebuild_origins_by_protocols (self);
}
static gboolean
origin_found_in_any_provider (CallsManager *self,
CallsOrigin *origin)
{
GHashTableIter iter;
gpointer key, value;
g_return_val_if_fail (CALLS_IS_MANAGER (self), FALSE);
g_return_val_if_fail (CALLS_IS_ORIGIN (origin), FALSE);
g_hash_table_iter_init (&iter, self->providers);
while (g_hash_table_iter_next (&iter, &key, &value)) {
guint position;
CallsProvider *provider = CALLS_PROVIDER (value);
GListModel *origins = calls_provider_get_origins (provider);
if (origins && calls_find_in_store (origins,
origin,
&position))
return TRUE;
}
return FALSE;
}
static void
origin_items_changed_cb (GListModel *model,
guint position,
guint removed,
guint added,
CallsManager *self)
{
guint i;
CallsOrigin *origin;
guint purged = 0;
guint total_origins;
g_assert (CALLS_IS_MANAGER (self));
total_origins = g_list_model_get_n_items (G_LIST_MODEL (self->origins));
g_debug ("origins changed: pos=%d rem=%d added=%d total=%d",
position, removed, added, g_list_model_get_n_items (model));
/* Check stale/removed origins: We need to look up */
if (removed == 0)
goto skip_remove;
for (i = 0; i < total_origins - purged; i++) {
origin = g_list_model_get_item (G_LIST_MODEL (self->origins), i - purged);
if (!origin_found_in_any_provider (self, origin)) {
remove_origin (self, origin);
purged++;
}
}
/** The number of purged entries from self->origins must be equal to removed
* origins from the providers list
*/
if (purged != removed) {
g_warning ("Managed origins are not in sync anymore!");
}
skip_remove:
for (i = 0; i < added; i++) {
g_debug ("before adding: %d",
g_list_model_get_n_items (G_LIST_MODEL (self->origins)));
origin = g_list_model_get_item (model, position + i);
add_origin (self, origin); // add to list store
g_object_unref (origin);
g_debug ("after adding: %d",
g_list_model_get_n_items (G_LIST_MODEL (self->origins)));
}
rebuild_origins_by_protocols (self);
update_state (self);
}
static void
add_provider (CallsManager *self, const gchar *name)
{
GListModel *origins;
CallsProvider *provider;
guint n_items;
g_assert (CALLS_IS_MANAGER (self));
g_assert (name);
if (g_hash_table_lookup (self->providers, name))
return;
provider = calls_provider_load_plugin (name);
if (provider == NULL) {
g_warning ("Could not load a plugin with name `%s'", name);
return;
}
g_hash_table_insert (self->providers, g_strdup (name), provider);
update_protocols (self);
origins = calls_provider_get_origins (provider);
g_signal_connect_object (origins, "items-changed",
G_CALLBACK (origin_items_changed_cb), self,
G_CONNECT_AFTER);
n_items = g_list_model_get_n_items (origins);
origin_items_changed_cb (origins, 0, 0, n_items, self);
}
static void
calls_manager_get_property (GObject *object,
guint property_id,
GValue *value,
GParamSpec *pspec)
{
CallsManager *self = CALLS_MANAGER (object);
switch (property_id) {
case PROP_STATE:
g_value_set_enum (value, calls_manager_get_state (self));
break;
case PROP_COUNTRY_CODE:
g_value_set_string (value, self->country_code);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
break;
}
}
static void
calls_manager_set_property (GObject *object,
guint property_id,
const GValue *value,
GParamSpec *pspec)
{
CallsManager *self = CALLS_MANAGER (object);
switch (property_id) {
case PROP_COUNTRY_CODE:
g_free (self->country_code);
self->country_code = g_value_dup_string (value);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
break;
}
}
static void
calls_manager_finalize (GObject *object)
{
CallsManager *self = CALLS_MANAGER (object);
g_clear_object (&self->origins);
g_clear_object (&self->contacts_provider);
g_clear_pointer (&self->country_code, g_free);
g_clear_pointer (&self->providers, g_hash_table_unref);
g_clear_pointer (&self->origins_by_protocol, g_hash_table_unref);
g_clear_pointer (&self->supported_protocols, g_ptr_array_unref);
G_OBJECT_CLASS (calls_manager_parent_class)->finalize (object);
}
static void
calls_manager_class_init (CallsManagerClass *klass)
{
GObjectClass *object_class = G_OBJECT_CLASS (klass);
object_class->get_property = calls_manager_get_property;
object_class->set_property = calls_manager_set_property;
object_class->finalize = calls_manager_finalize;
signals[SIGNAL_CALL_ADD] =
g_signal_new ("call-add",
G_TYPE_FROM_CLASS (klass),
G_SIGNAL_RUN_FIRST,
0,
NULL, NULL, NULL,
G_TYPE_NONE,
2,
CALLS_TYPE_CALL,
CALLS_TYPE_ORIGIN);
signals[SIGNAL_CALL_REMOVE] =
g_signal_new ("call-remove",
G_TYPE_FROM_CLASS (klass),
G_SIGNAL_RUN_FIRST,
0,
NULL, NULL, NULL,
G_TYPE_NONE,
2,
CALLS_TYPE_CALL,
CALLS_TYPE_ORIGIN);
signals[SIGNAL_ERROR] =
g_signal_new ("error",
G_TYPE_FROM_CLASS (klass),
G_SIGNAL_RUN_FIRST,
0,
NULL, NULL, NULL,
G_TYPE_NONE,
1,
G_TYPE_STRING);
signals[USSD_ADDED] =
g_signal_new ("ussd-added",
G_TYPE_FROM_CLASS (klass),
G_SIGNAL_RUN_FIRST,
0,
NULL, NULL, NULL,
G_TYPE_NONE,
2,
CALLS_TYPE_USSD,
G_TYPE_STRING);
signals[USSD_CANCELLED] =
g_signal_new ("ussd-cancelled",
G_TYPE_FROM_CLASS (klass),
G_SIGNAL_RUN_FIRST,
0,
NULL, NULL, NULL,
G_TYPE_NONE,
1,
CALLS_TYPE_USSD);
signals[USSD_STATE_CHANGED] =
g_signal_new ("ussd-state-changed",
G_TYPE_FROM_CLASS (klass),
G_SIGNAL_RUN_FIRST,
0,
NULL, NULL, NULL,
G_TYPE_NONE,
1,
CALLS_TYPE_USSD);
props[PROP_STATE] =
g_param_spec_enum ("state",
"state",
"The state of the Manager",
CALLS_TYPE_MANAGER_STATE,
CALLS_MANAGER_STATE_NO_PROVIDER,
G_PARAM_READABLE | G_PARAM_EXPLICIT_NOTIFY);
props[PROP_COUNTRY_CODE] = g_param_spec_string ("country-code",
"country code",
"The default country code to use",
NULL,
G_PARAM_READWRITE);
g_object_class_install_properties (object_class, PROP_LAST_PROP, props);
}
static void
calls_manager_init (CallsManager *self)
{
PeasEngine *peas;
const gchar *dir;
self->state = CALLS_MANAGER_STATE_NO_PROVIDER;
self->primary_call = NULL;
self->providers = g_hash_table_new_full (g_str_hash,
g_str_equal,
g_free,
g_object_unref);
self->origins_by_protocol = g_hash_table_new_full (g_str_hash,
g_str_equal,
g_free,
g_object_unref);
self->origins = g_list_store_new (calls_origin_get_type ());
self->supported_protocols = g_ptr_array_new_full (5, g_free);
// Load the contacts provider
self->contacts_provider = calls_contacts_provider_new ();
g_object_bind_property (self, "country-code",
self->contacts_provider, "country-code",
G_BINDING_DEFAULT);
peas = peas_engine_get_default ();
dir = g_getenv ("CALLS_PLUGIN_DIR");
if (dir && dir[0] != '\0') {
/** Add the directory to the search path. prepend_search_path() does not work
* as expected. see https://gitlab.gnome.org/GNOME/libpeas/-/issues/19
*/
g_debug ("Adding %s to plugin search path", dir);
peas_engine_add_search_path (peas, dir, NULL);
}
peas_engine_add_search_path (peas, PLUGIN_LIBDIR, NULL);
g_debug ("Scanning for plugins in `%s'", PLUGIN_LIBDIR);
}
CallsManager *
calls_manager_new (void)
{
return g_object_new (CALLS_TYPE_MANAGER, NULL);
}
CallsManager *
calls_manager_get_default (void)
{
static CallsManager *instance;
if (instance == NULL) {
instance = calls_manager_new ();
g_object_add_weak_pointer (G_OBJECT (instance), (gpointer *)&instance);
}
return instance;
}
CallsContactsProvider *
calls_manager_get_contacts_provider (CallsManager *self)
{
g_return_val_if_fail (CALLS_IS_MANAGER (self), NULL);
return self->contacts_provider;
}
void
calls_manager_add_provider (CallsManager *self,
const char *name)
{
g_return_if_fail (CALLS_IS_MANAGER (self));
g_return_if_fail (name);
add_provider (self, name);
}
void
calls_manager_remove_provider (CallsManager *self,
const char *name)
{
g_return_if_fail (CALLS_IS_MANAGER (self));
g_return_if_fail (name);
remove_provider (self, name);
update_protocols (self);
}
gboolean
calls_manager_has_provider (CallsManager *self,
const char *name)
{
g_return_val_if_fail (CALLS_IS_MANAGER (self), FALSE);
g_return_val_if_fail (name, FALSE);
return !!g_hash_table_lookup (self->providers, name);
}
gboolean
calls_manager_is_modem_provider (CallsManager *self,
const char *name)
{
CallsProvider *provider;
g_return_val_if_fail (CALLS_IS_MANAGER (self), FALSE);
g_return_val_if_fail (name, FALSE);
provider = g_hash_table_lookup (self->providers, name);
g_return_val_if_fail (provider, FALSE);
return calls_provider_is_modem (provider);
}
CallsManagerState
calls_manager_get_state (CallsManager *self)
{
g_return_val_if_fail (CALLS_IS_MANAGER (self), CALLS_MANAGER_STATE_UNKNOWN);
return self->state;
}
GListModel *
calls_manager_get_origins (CallsManager *self)
{
g_return_val_if_fail (CALLS_IS_MANAGER (self), NULL);
return G_LIST_MODEL (self->origins);
}
GList *
calls_manager_get_calls (CallsManager *self)
{
GListModel *origins = NULL;
g_autoptr (GList) calls = NULL;
guint n_items = 0;
g_return_val_if_fail (CALLS_IS_MANAGER (self), NULL);
origins = calls_manager_get_origins (self);
if (origins)
n_items = g_list_model_get_n_items (origins);
for (guint i = 0; i < n_items; i++)
{
g_autoptr (CallsOrigin) origin = NULL;
origin = g_list_model_get_item (origins, i);
calls = g_list_concat (calls, calls_origin_get_calls (origin));
}
return g_steal_pointer (&calls);
}
/**
* calls_manager_hang_up_all_calls:
* @self: a #CallsManager
*
* Hangs up on every call known to @self.
*/
void
calls_manager_hang_up_all_calls (CallsManager *self)
{
g_autoptr (GList) calls = NULL;
GList *node;
CallsCall *call;
g_return_if_fail (CALLS_IS_MANAGER (self));
calls = calls_manager_get_calls (self);
for (node = calls; node; node = node->next)
{
call = node->data;
g_debug ("Hanging up on call %s", calls_call_get_name (call));
calls_call_hang_up (call);
}
g_debug ("Hanged up on all calls");
}
/**
* calls_manager_has_active_call
* @self: a #CallsManager
*
* Checks if @self has any active call
*
* Returns: %TRUE if there are active calls, %FALSE otherwise
*/
gboolean
calls_manager_has_active_call (CallsManager *self)
{
g_autoptr (GList) calls = NULL;
GList *node;
CallsCall *call;
g_return_val_if_fail (CALLS_IS_MANAGER (self), FALSE);
calls = calls_manager_get_calls (self);
for (node = calls; node; node = node->next)
{
call = node->data;
if (calls_call_get_state (call) != CALLS_CALL_STATE_DISCONNECTED)
return TRUE;
}
return FALSE;
}
/**
* calls_manager_get_suitable_origins:
* @self: The #CallsManager
* @target: The target number/address
*
* Returns (transfer none): A #GListModel of suitable origins
*/
GListModel *
calls_manager_get_suitable_origins (CallsManager *self,
const char *target)
{
const char *protocol;
GListModel *model;
g_return_val_if_fail (CALLS_IS_MANAGER (self), NULL);
g_return_val_if_fail (target, NULL);
protocol = get_protocol_from_address_with_fallback (target);
model = g_hash_table_lookup (self->origins_by_protocol, protocol);
if (model && G_IS_LIST_MODEL (model))
return model;
return NULL;
}
/**
* calls_manager_has_any_provider:
* @self: The #CallsManager
*
* Returns: %TRUE if any provider is loaded, %FALSE otherwise
*/
gboolean
calls_manager_has_any_provider (CallsManager *self)
{
g_return_val_if_fail (CALLS_IS_MANAGER (self), FALSE);
return !!g_hash_table_size (self->providers);
}
/**
* calls_manager_get_provider_names:
* @self: The #CallsManager
* @length: (optional) (out): the length of the returned array
*
* Retrieves the names of all providers loaded by @self, as an array.
*
* You should free the return value with g_free().
*
* Returns: (array length=length) (transfer container): a
* %NULL-terminated array containing the names of providers.
*/
const char **
calls_manager_get_provider_names (CallsManager *self,
guint *length)
{
g_return_val_if_fail (CALLS_IS_MANAGER (self), NULL);
return (const char **) g_hash_table_get_keys_as_array (self->providers, length);
}
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