6037a6af94
Pipewire server uses the global "settings" metadata for adjusting its own log level. Make it a convention that clients may watch "log.level" in this metadata with their client id as subject, for setting their own log level dynamically. Watch the global "settings" metadata for "log.level" changes for our id. On changes, set our log level accordingly.
104 lines
3.0 KiB
C
104 lines
3.0 KiB
C
/* WirePlumber
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*
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* Copyright © 2023 Collabora Ltd.
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* Copyright © 2023 Pauli Virtanen <pav@iki.fi>
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*
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* SPDX-License-Identifier: MIT
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*/
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#include <wp/wp.h>
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#include <errno.h>
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#include <pipewire/pipewire.h>
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#include <pipewire/keys.h>
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WP_DEFINE_LOCAL_LOG_TOPIC ("m-log-settings")
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struct _WpLogSettingsPlugin
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{
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WpPlugin parent;
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WpObjectManager *metadata_om;
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};
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G_DECLARE_FINAL_TYPE (WpLogSettingsPlugin, wp_log_settings_plugin,
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WP, LOG_SETTINGS_PLUGIN, WpPlugin)
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G_DEFINE_TYPE (WpLogSettingsPlugin, wp_log_settings_plugin, WP_TYPE_PLUGIN)
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static void
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wp_log_settings_plugin_init (WpLogSettingsPlugin * self)
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{
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}
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static void
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on_metadata_changed (WpMetadata *m, guint32 subject,
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const gchar *key, const gchar *type, const gchar *value, gpointer d)
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{
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WpLogSettingsPlugin * self = WP_LOG_SETTINGS_PLUGIN (d);
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g_autoptr (WpCore) core = wp_object_get_core (WP_OBJECT (self));
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g_return_if_fail (core);
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if (subject != wp_core_get_own_bound_id (core))
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return;
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if (spa_streq(key, "log.level"))
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wp_log_set_global_level (value ? value : "2");
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}
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static void
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on_metadata_added (WpObjectManager *om, WpMetadata *metadata, gpointer d)
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{
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WpLogSettingsPlugin * self = WP_LOG_SETTINGS_PLUGIN (d);
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g_autoptr (WpCore) core = wp_object_get_core (WP_OBJECT (self));
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g_return_if_fail (core);
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/* Handle the changed signal */
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g_signal_connect_object (metadata, "changed",
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G_CALLBACK (on_metadata_changed), self, 0);
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}
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static void
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wp_log_settings_plugin_enable (WpPlugin * plugin, WpTransition * transition)
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{
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WpLogSettingsPlugin * self = WP_LOG_SETTINGS_PLUGIN (plugin);
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g_autoptr (WpCore) core = wp_object_get_core (WP_OBJECT (plugin));
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g_return_if_fail (core);
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/* Create the metadata object manager */
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self->metadata_om = wp_object_manager_new ();
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wp_object_manager_add_interest (self->metadata_om, WP_TYPE_METADATA,
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WP_CONSTRAINT_TYPE_PW_GLOBAL_PROPERTY, "metadata.name", "=s", "settings",
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NULL);
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wp_object_manager_request_object_features (self->metadata_om,
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WP_TYPE_METADATA, WP_OBJECT_FEATURES_ALL);
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g_signal_connect_object (self->metadata_om, "object-added",
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G_CALLBACK (on_metadata_added), self, 0);
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wp_core_install_object_manager (core, self->metadata_om);
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wp_object_update_features (WP_OBJECT (self), WP_PLUGIN_FEATURE_ENABLED, 0);
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}
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static void
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wp_log_settings_plugin_disable (WpPlugin * plugin)
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{
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WpLogSettingsPlugin * self = WP_LOG_SETTINGS_PLUGIN (plugin);
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g_clear_object (&self->metadata_om);
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}
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static void
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wp_log_settings_plugin_class_init (WpLogSettingsPluginClass * klass)
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{
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WpPluginClass *plugin_class = (WpPluginClass *) klass;
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plugin_class->enable = wp_log_settings_plugin_enable;
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plugin_class->disable = wp_log_settings_plugin_disable;
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}
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WP_PLUGIN_EXPORT GObject *
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wireplumber__module_init (WpCore * core, GVariant * args, GError ** error)
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{
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return G_OBJECT (g_object_new (wp_log_settings_plugin_get_type (),
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"name", "log-settings",
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"core", core,
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NULL));
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}
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