wireplumber/docs/rst/scripting/lua_api/lua_log_api.rst
2024-09-05 10:52:28 +00:00

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.. _lua_log_api:
Debug Logging
=============
Constructors
~~~~~~~~~~~~
.. function:: Log.open_topic(topic)
Opens a LogTopic with the given topic name. Well known script topics are
described in :ref:`daemon_logging`, and messages from scripts shall use
**s-***.
Example:
.. code-block:: lua
local obj
log = Log.open_topic ("s-linking")
log:info (obj, "an info message on obj")
log:debug ("a debug message")
Above example shows how to output debug logs.
:param string topic: The log topic to open
:returns: the log topic object
:rtype: Log (:c:struct:`WpLogTopic`)
Methods
~~~~~~~
.. function:: Log.warning(object, message)
Logs a warning message, like :c:macro:`wp_warning_object`
:param object: optional object to associate the message with; you
may skip this and just start with the *message* as the first parameter
:type object: GObject or GBoxed
:param string message: the warning message to log
.. function:: Log.notice(object, message)
Logs a notice message, like :c:macro:`wp_notice_object`
:param object: optional object to associate the message with; you
may skip this and just start with the *message* as the first parameter
:type object: GObject or GBoxed
:param string message: the normal message to log
.. function:: Log.info(object, message)
Logs a info message, like :c:macro:`wp_info_object`
:param object: optional object to associate the message with; you
may skip this and just start with the *message* as the first parameter
:type object: GObject or GBoxed
:param string message: the info message to log
.. function:: Log.debug(object, message)
Logs a debug message, like :c:macro:`wp_debug_object`
:param object: optional object to associate the message with; you
may skip this and just start with the *message* as the first parameter
:type object: GObject or GBoxed
:param string message: the debug message to log
.. function:: Log.trace(object, message)
Logs a trace message, like :c:macro:`wp_trace_object`
:param object: optional object to associate the message with; you
may skip this and just start with the *message* as the first parameter
:type object: GObject or GBoxed
:param string message: the trace message to log
.. function:: Debug.dump_table(t)
Prints a table with all its contents, recursively, to stdout
for debugging purposes
:param table t: any table