2021-09-29 17:13:01 +05:30
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/* WirePlumber
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*
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* Copyright © 2021 Collabora Ltd.
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* @author Ashok Sidipotu <ashok.sidipotu@collabora.com>
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*
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* SPDX-License-Identifier: MIT
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*/
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#include "factory.h"
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log: implement a log topics system, like pipewire
The intention is to make checks for enabled log topics faster.
Every topic has its own structure that is statically defined in the file
where the logs are printed from. The structure is initialized transparently
when it is first used and it contains all the log level flags for the levels
that this topic should print messages. It is then checked on the wp_log()
macro before printing the message.
Topics from SPA/PipeWire are also handled natively, so messages are printed
directly without checking if the topic is enabled, since the PipeWire and SPA
macros do the checking themselves.
Messages coming from GLib are checked inside the handler.
An internal WpLogFields object is used to manage the state of each log
message, populating all the fields appropriately from the place they
are coming from (wp_log, spa_log, glib log), formatting the message and
then printing it. For printing to the journald, we still use the glib
message handler, converting all the needed fields to GLogField on demand.
That message handler does not do any checks for the topic or the level, so
we can just call it to send the message.
2023-05-16 11:51:29 +03:00
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#include "log.h"
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2021-09-29 17:13:01 +05:30
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#include "private/pipewire-object-mixin.h"
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log: implement a log topics system, like pipewire
The intention is to make checks for enabled log topics faster.
Every topic has its own structure that is statically defined in the file
where the logs are printed from. The structure is initialized transparently
when it is first used and it contains all the log level flags for the levels
that this topic should print messages. It is then checked on the wp_log()
macro before printing the message.
Topics from SPA/PipeWire are also handled natively, so messages are printed
directly without checking if the topic is enabled, since the PipeWire and SPA
macros do the checking themselves.
Messages coming from GLib are checked inside the handler.
An internal WpLogFields object is used to manage the state of each log
message, populating all the fields appropriately from the place they
are coming from (wp_log, spa_log, glib log), formatting the message and
then printing it. For printing to the journald, we still use the glib
message handler, converting all the needed fields to GLogField on demand.
That message handler does not do any checks for the topic or the level, so
we can just call it to send the message.
2023-05-16 11:51:29 +03:00
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WP_DEFINE_LOCAL_LOG_TOPIC ("wp-factory")
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2021-09-29 17:13:01 +05:30
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/*! \defgroup wpfactory WpFactory */
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/*!
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* \struct WpFactory
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*
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* The WpFactory class allows accessing the properties and methods of
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* PipeWire Factory objects (`struct pw_factory`).
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*
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* A WpFactory is constructed internally by wireplumber, when the pipewire
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* constructed factory objects are reported in by PipeWire registry
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* and it is made available for wireplumber clients through the
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* WpObjectManager API.
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2023-08-30 11:20:06 +02:00
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*
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* \since 0.4.5
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2021-09-29 17:13:01 +05:30
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*/
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struct _WpFactory
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{
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WpGlobalProxy parent;
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};
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static void wp_factory_pw_object_mixin_priv_interface_init (
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WpPwObjectMixinPrivInterface * iface);
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G_DEFINE_TYPE_WITH_CODE (WpFactory, wp_factory, WP_TYPE_GLOBAL_PROXY,
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G_IMPLEMENT_INTERFACE (WP_TYPE_PIPEWIRE_OBJECT,
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wp_pw_object_mixin_object_interface_init)
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G_IMPLEMENT_INTERFACE (WP_TYPE_PW_OBJECT_MIXIN_PRIV,
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wp_factory_pw_object_mixin_priv_interface_init))
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static void wp_factory_init (WpFactory * self)
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{
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}
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static void
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wp_factory_activate_execute_step (WpObject * object,
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WpFeatureActivationTransition * transition, guint step,
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WpObjectFeatures missing)
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{
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switch (step) {
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case WP_PW_OBJECT_MIXIN_STEP_BIND:
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case WP_TRANSITION_STEP_ERROR:
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/* base class can handle BIND and ERROR */
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WP_OBJECT_CLASS (wp_factory_parent_class)->
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activate_execute_step (object, transition, step, missing);
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break;
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case WP_PW_OBJECT_MIXIN_STEP_WAIT_INFO:
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/* just wait, info will be emitted anyway after binding */
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break;
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default:
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g_assert_not_reached ();
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}
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}
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static const struct pw_factory_events factory_events = {
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PW_VERSION_FACTORY_EVENTS,
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.info = (HandleEventInfoFunc(factory)) wp_pw_object_mixin_handle_event_info,
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};
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static void
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wp_factory_pw_proxy_created (WpProxy * proxy, struct pw_proxy * pw_proxy)
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{
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wp_pw_object_mixin_handle_pw_proxy_created (proxy, pw_proxy,
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factory, &factory_events);
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}
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static void
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wp_factory_pw_proxy_destroyed (WpProxy * proxy)
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{
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wp_pw_object_mixin_handle_pw_proxy_destroyed (proxy);
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WP_PROXY_CLASS (wp_factory_parent_class)->pw_proxy_destroyed (proxy);
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}
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static void
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wp_factory_class_init (WpFactoryClass * klass)
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{
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GObjectClass *object_class = (GObjectClass *) klass;
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WpObjectClass *wpobject_class = (WpObjectClass *) klass;
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WpProxyClass *proxy_class = (WpProxyClass *) klass;
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object_class->get_property = wp_pw_object_mixin_get_property;
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wpobject_class->get_supported_features =
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wp_pw_object_mixin_get_supported_features;
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wpobject_class->activate_get_next_step =
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wp_pw_object_mixin_activate_get_next_step;
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wpobject_class->activate_execute_step = wp_factory_activate_execute_step;
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proxy_class->pw_iface_type = PW_TYPE_INTERFACE_Factory;
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proxy_class->pw_iface_version = PW_VERSION_FACTORY;
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proxy_class->pw_proxy_created = wp_factory_pw_proxy_created;
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proxy_class->pw_proxy_destroyed = wp_factory_pw_proxy_destroyed;
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wp_pw_object_mixin_class_override_properties (object_class);
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}
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static void
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wp_factory_pw_object_mixin_priv_interface_init (
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WpPwObjectMixinPrivInterface * iface)
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{
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wp_pw_object_mixin_priv_interface_info_init_no_params (iface, factory, FACTORY);
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}
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