modules: add config endpoint module
This commit is contained in:
Julian Bouzas
272
modules/module-config-endpoint/parser-endpoint.c
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272
modules/module-config-endpoint/parser-endpoint.c
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/* WirePlumber
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*
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* Copyright © 2019 Collabora Ltd.
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* @author Julian Bouzas <julian.bouzas@collabora.com>
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*
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* SPDX-License-Identifier: MIT
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*/
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#include <wptoml/wptoml.h>
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#include <pipewire/pipewire.h>
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#include "parser-endpoint.h"
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struct _WpParserEndpoint
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{
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GObject parent;
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GPtrArray *datas;
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};
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static void wp_parser_endpoint_config_parser_init (gpointer iface,
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gpointer iface_data);
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G_DEFINE_TYPE_WITH_CODE (WpParserEndpoint, wp_parser_endpoint,
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G_TYPE_OBJECT,
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G_IMPLEMENT_INTERFACE (WP_TYPE_CONFIG_PARSER,
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wp_parser_endpoint_config_parser_init))
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static void
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wp_parser_endpoint_data_destroy (gpointer p)
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{
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struct WpParserEndpointData *data = p;
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/* Free the strings */
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g_clear_pointer (&data->mn.props, wp_properties_unref);
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g_clear_pointer (&data->e.name, g_free);
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g_clear_pointer (&data->e.media_class, g_free);
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g_clear_pointer (&data->e.props, wp_properties_unref);
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g_clear_pointer (&data->e.type, g_free);
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g_clear_pointer (&data->e.streams, g_free);
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g_slice_free (struct WpParserEndpointData, data);
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}
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static void
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parse_properties_for_each (const WpTomlTable *table, gpointer user_data)
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{
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WpProperties *props = user_data;
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g_return_if_fail (props);
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/* Skip unparsed tables */
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if (!table)
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return;
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/* Parse the name and value */
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g_autofree gchar *name = wp_toml_table_get_string (table, "name");
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g_autofree gchar *value = wp_toml_table_get_string (table, "value");
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/* Set the property */
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if (name && value)
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wp_properties_set (props, name, value);
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}
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static WpProperties *
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parse_properties (WpTomlTable *table, const char *name)
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{
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WpProperties *props = wp_properties_new_empty ();
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g_autoptr (WpTomlTableArray) properties = NULL;
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properties = wp_toml_table_get_array_table (table, name);
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if (properties)
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wp_toml_table_array_for_each (properties, parse_properties_for_each, props);
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return props;
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}
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static guint
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parse_endpoint_direction (const char *direction)
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{
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if (g_strcmp0 (direction, "input") == 0)
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return PW_DIRECTION_INPUT;
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else if (g_strcmp0 (direction, "output") == 0)
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return PW_DIRECTION_OUTPUT;
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g_return_val_if_reached (PW_DIRECTION_INPUT);
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}
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static struct WpParserEndpointData *
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wp_parser_endpoint_data_new (const gchar *location)
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{
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g_autoptr (WpTomlFile) file = NULL;
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g_autoptr (WpTomlTable) table = NULL, mn = NULL, e = NULL;
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g_autoptr (WpTomlArray) streams = NULL;
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struct WpParserEndpointData *res = NULL;
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g_autofree char *direction = NULL;
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/* File format:
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* ------------
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* [match-node]
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* priority (uint32)
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* properties (WpProperties)
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*
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* [endpoint]
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* name (string)
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* media_class (string)
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* direction (string)
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* priority (uint32)
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* properties (WpProperties)
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* type (string)
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* streams (string)
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*/
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/* Get the TOML file */
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file = wp_toml_file_new (location);
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if (!file)
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return NULL;
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/* Get the file table */
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table = wp_toml_file_get_table (file);
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if (!table)
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return NULL;
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/* Create the endpoint data */
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res = g_slice_new0(struct WpParserEndpointData);
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/* Get the match-node table */
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mn = wp_toml_table_get_table (table, "match-node");
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if (!mn)
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goto error;
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/* Get the priority from the match-node table */
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res->mn.priority = 0;
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wp_toml_table_get_uint32 (mn, "priority", &res->mn.priority);
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/* Get the match node properties */
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res->mn.props = parse_properties (mn, "properties");
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/* Get the endpoint table */
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e = wp_toml_table_get_table (table, "endpoint");
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if (!e)
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goto error;
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/* Get the name from the endpoint table */
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res->e.name = wp_toml_table_get_string (e, "name");
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/* Get the media class from the endpoint table */
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res->e.media_class = wp_toml_table_get_string (e, "media_class");
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/* Get the direction from the endpoint table */
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direction = wp_toml_table_get_string (e, "direction");
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if (!direction)
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goto error;
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res->e.direction = parse_endpoint_direction (direction);
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/* Get the priority from the endpoint table */
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res->mn.priority = 0;
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wp_toml_table_get_uint32 (e, "priority", &res->e.priority);
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/* Get the endpoint properties */
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res->e.props = parse_properties (e, "properties");
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/* Get the endpoint type */
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res->e.type = wp_toml_table_get_string (e, "type");
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if (!res->e.type)
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goto error;
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/* Get the endpoint streams */
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res->e.streams = wp_toml_table_get_string (e, "streams");
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return res;
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error:
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g_clear_pointer (&res, wp_parser_endpoint_data_destroy);
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return NULL;
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}
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static gint
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compare_datas_func (gconstpointer a, gconstpointer b)
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{
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struct WpParserEndpointData *da = *(struct WpParserEndpointData *const *)a;
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struct WpParserEndpointData *db = *(struct WpParserEndpointData *const *)b;
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return db->mn.priority - da->mn.priority;
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}
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static gboolean
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wp_parser_endpoint_add_file (WpConfigParser *parser,
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const gchar *name)
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{
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WpParserEndpoint *self = WP_PARSER_ENDPOINT (parser);
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struct WpParserEndpointData *data;
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/* Parse the file */
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data = wp_parser_endpoint_data_new (name);
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if (!data) {
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g_warning ("Failed to parse configuration file '%s'", name);
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return FALSE;
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}
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/* Add the data to the array */
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g_ptr_array_add(self->datas, data);
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/* Sort the array by priority */
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g_ptr_array_sort(self->datas, compare_datas_func);
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return TRUE;
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}
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static gconstpointer
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wp_parser_endpoint_get_matched_data (WpConfigParser *parser, gpointer data)
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{
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WpParserEndpoint *self = WP_PARSER_ENDPOINT (parser);
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WpProxyNode *node = WP_PROXY_NODE (data);
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const struct WpParserEndpointData *d = NULL;
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g_autoptr (WpProperties) props = NULL;
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g_return_val_if_fail (node, NULL);
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props = wp_proxy_node_get_properties (node);
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/* Find the first data that matches node */
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for (guint i = 0; i < self->datas->len; i++) {
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d = g_ptr_array_index(self->datas, i);
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if (wp_properties_matches (props, d->mn.props))
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return d;
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}
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return NULL;
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}
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static void
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wp_parser_endpoint_reset (WpConfigParser *parser)
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{
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WpParserEndpoint *self = WP_PARSER_ENDPOINT (parser);
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g_ptr_array_set_size (self->datas, 0);
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}
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static void
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wp_parser_endpoint_config_parser_init (gpointer iface, gpointer iface_data)
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{
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WpConfigParserInterface *cp_iface = iface;
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cp_iface->add_file = wp_parser_endpoint_add_file;
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cp_iface->get_matched_data = wp_parser_endpoint_get_matched_data;
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cp_iface->reset = wp_parser_endpoint_reset;
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}
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static void
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wp_parser_endpoint_finalize (GObject * object)
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{
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WpParserEndpoint *self = WP_PARSER_ENDPOINT (object);
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g_clear_pointer (&self->datas, g_ptr_array_unref);
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G_OBJECT_CLASS (wp_parser_endpoint_parent_class)->finalize (object);
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}
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static void
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wp_parser_endpoint_init (WpParserEndpoint * self)
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{
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self->datas = g_ptr_array_new_with_free_func(
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wp_parser_endpoint_data_destroy);
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}
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static void
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wp_parser_endpoint_class_init (WpParserEndpointClass * klass)
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{
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GObjectClass *object_class = (GObjectClass *) klass;
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object_class->finalize = wp_parser_endpoint_finalize;
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}
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