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godot-docs/classes/class_thread.rst
2020-01-21 09:28:25 +01:00

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.. Generated automatically by doc/tools/makerst.py in Godot's source tree.
.. DO NOT EDIT THIS FILE, but the Thread.xml source instead.
.. The source is found in doc/classes or modules/<name>/doc_classes.
.. _class_Thread:
Thread
======
**Inherits:** :ref:`Reference<class_Reference>` **<** :ref:`Object<class_Object>`
**Category:** Core
Brief Description
-----------------
A unit of execution in a process.
Methods
-------
+---------------------------------------+-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| :ref:`String<class_String>` | :ref:`get_id<class_Thread_method_get_id>` **(** **)** const |
+---------------------------------------+-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| :ref:`bool<class_bool>` | :ref:`is_active<class_Thread_method_is_active>` **(** **)** const |
+---------------------------------------+-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| :ref:`Error<enum_@GlobalScope_Error>` | :ref:`start<class_Thread_method_start>` **(** :ref:`Object<class_Object>` instance, :ref:`String<class_String>` method, :ref:`Variant<class_Variant>` userdata=null, :ref:`int<class_int>` priority=1 **)** |
+---------------------------------------+-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| :ref:`Variant<class_Variant>` | :ref:`wait_to_finish<class_Thread_method_wait_to_finish>` **(** **)** |
+---------------------------------------+-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
Enumerations
------------
.. _enum_Thread_Priority:
.. _class_Thread_constant_PRIORITY_LOW:
.. _class_Thread_constant_PRIORITY_NORMAL:
.. _class_Thread_constant_PRIORITY_HIGH:
enum **Priority**:
- **PRIORITY_LOW** = **0**
- **PRIORITY_NORMAL** = **1**
- **PRIORITY_HIGH** = **2**
Description
-----------
A unit of execution in a process. Can run methods on :ref:`Object<class_Object>`\ s simultaneously. The use of synchronization via :ref:`Mutex<class_Mutex>`, :ref:`Semaphore<class_Semaphore>` is advised if working with shared objects.
Method Descriptions
-------------------
.. _class_Thread_method_get_id:
- :ref:`String<class_String>` **get_id** **(** **)** const
Returns the current ``Thread``\ s id, uniquely identifying it among all threads.
----
.. _class_Thread_method_is_active:
- :ref:`bool<class_bool>` **is_active** **(** **)** const
Returns ``true`` if this ``Thread`` is currently active. An active ``Thread`` cannot start work on a new method but can be joined with :ref:`wait_to_finish<class_Thread_method_wait_to_finish>`.
----
.. _class_Thread_method_start:
- :ref:`Error<enum_@GlobalScope_Error>` **start** **(** :ref:`Object<class_Object>` instance, :ref:`String<class_String>` method, :ref:`Variant<class_Variant>` userdata=null, :ref:`int<class_int>` priority=1 **)**
Starts a new ``Thread`` that runs "method" on object "instance" with "userdata" passed as an argument. The "priority" of the ``Thread`` can be changed by passing a PRIORITY\_\* enum.
Returns OK on success, or ERR_CANT_CREATE on failure.
----
.. _class_Thread_method_wait_to_finish:
- :ref:`Variant<class_Variant>` **wait_to_finish** **(** **)**
Joins the ``Thread`` and waits for it to finish. Returns what the method called returned.