mirror of
https://github.com/godotengine/godot-docs.git
synced 2025-12-31 17:49:03 +03:00
179 lines
7.5 KiB
ReStructuredText
179 lines
7.5 KiB
ReStructuredText
:github_url: hide
|
|
|
|
.. DO NOT EDIT THIS FILE!!!
|
|
.. Generated automatically from Godot engine sources.
|
|
.. Generator: https://github.com/godotengine/godot/tree/4.0/doc/tools/make_rst.py.
|
|
.. XML source: https://github.com/godotengine/godot/tree/4.0/doc/classes/Thread.xml.
|
|
|
|
.. _class_Thread:
|
|
|
|
Thread
|
|
======
|
|
|
|
**Inherits:** :ref:`RefCounted<class_RefCounted>` **<** :ref:`Object<class_Object>`
|
|
|
|
A unit of execution in a process.
|
|
|
|
.. rst-class:: classref-introduction-group
|
|
|
|
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>` or :ref:`Semaphore<class_Semaphore>` is advised if working with shared objects.
|
|
|
|
\ **Note:** Breakpoints won't break on code if it's running in a thread. This is a current limitation of the GDScript debugger.
|
|
|
|
.. rst-class:: classref-introduction-group
|
|
|
|
Tutorials
|
|
---------
|
|
|
|
- :doc:`Using multiple threads <../tutorials/performance/using_multiple_threads>`
|
|
|
|
- :doc:`Thread-safe APIs <../tutorials/performance/thread_safe_apis>`
|
|
|
|
- `3D Voxel Demo <https://godotengine.org/asset-library/asset/676>`__
|
|
|
|
.. rst-class:: classref-reftable-group
|
|
|
|
Methods
|
|
-------
|
|
|
|
.. table::
|
|
:widths: auto
|
|
|
|
+---------------------------------------+------------------------------------------------------------------------------------------------------------------------------------------------+
|
|
| :ref:`String<class_String>` | :ref:`get_id<class_Thread_method_get_id>` **(** **)** |const| |
|
|
+---------------------------------------+------------------------------------------------------------------------------------------------------------------------------------------------+
|
|
| :ref:`bool<class_bool>` | :ref:`is_alive<class_Thread_method_is_alive>` **(** **)** |const| |
|
|
+---------------------------------------+------------------------------------------------------------------------------------------------------------------------------------------------+
|
|
| :ref:`bool<class_bool>` | :ref:`is_started<class_Thread_method_is_started>` **(** **)** |const| |
|
|
+---------------------------------------+------------------------------------------------------------------------------------------------------------------------------------------------+
|
|
| :ref:`Error<enum_@GlobalScope_Error>` | :ref:`start<class_Thread_method_start>` **(** :ref:`Callable<class_Callable>` callable, :ref:`Priority<enum_Thread_Priority>` priority=1 **)** |
|
|
+---------------------------------------+------------------------------------------------------------------------------------------------------------------------------------------------+
|
|
| :ref:`Variant<class_Variant>` | :ref:`wait_to_finish<class_Thread_method_wait_to_finish>` **(** **)** |
|
|
+---------------------------------------+------------------------------------------------------------------------------------------------------------------------------------------------+
|
|
|
|
.. rst-class:: classref-section-separator
|
|
|
|
----
|
|
|
|
.. rst-class:: classref-descriptions-group
|
|
|
|
Enumerations
|
|
------------
|
|
|
|
.. _enum_Thread_Priority:
|
|
|
|
.. rst-class:: classref-enumeration
|
|
|
|
enum **Priority**:
|
|
|
|
.. _class_Thread_constant_PRIORITY_LOW:
|
|
|
|
.. rst-class:: classref-enumeration-constant
|
|
|
|
:ref:`Priority<enum_Thread_Priority>` **PRIORITY_LOW** = ``0``
|
|
|
|
A thread running with lower priority than normally.
|
|
|
|
.. _class_Thread_constant_PRIORITY_NORMAL:
|
|
|
|
.. rst-class:: classref-enumeration-constant
|
|
|
|
:ref:`Priority<enum_Thread_Priority>` **PRIORITY_NORMAL** = ``1``
|
|
|
|
A thread with a standard priority.
|
|
|
|
.. _class_Thread_constant_PRIORITY_HIGH:
|
|
|
|
.. rst-class:: classref-enumeration-constant
|
|
|
|
:ref:`Priority<enum_Thread_Priority>` **PRIORITY_HIGH** = ``2``
|
|
|
|
A thread running with higher priority than normally.
|
|
|
|
.. rst-class:: classref-section-separator
|
|
|
|
----
|
|
|
|
.. rst-class:: classref-descriptions-group
|
|
|
|
Method Descriptions
|
|
-------------------
|
|
|
|
.. _class_Thread_method_get_id:
|
|
|
|
.. rst-class:: classref-method
|
|
|
|
:ref:`String<class_String>` **get_id** **(** **)** |const|
|
|
|
|
Returns the current **Thread**'s ID, uniquely identifying it among all threads. If the **Thread** has not started running or if :ref:`wait_to_finish<class_Thread_method_wait_to_finish>` has been called, this returns an empty string.
|
|
|
|
.. rst-class:: classref-item-separator
|
|
|
|
----
|
|
|
|
.. _class_Thread_method_is_alive:
|
|
|
|
.. rst-class:: classref-method
|
|
|
|
:ref:`bool<class_bool>` **is_alive** **(** **)** |const|
|
|
|
|
Returns ``true`` if this **Thread** is currently running the provided function. This is useful for determining if :ref:`wait_to_finish<class_Thread_method_wait_to_finish>` can be called without blocking the calling thread.
|
|
|
|
To check if a **Thread** is joinable, use :ref:`is_started<class_Thread_method_is_started>`.
|
|
|
|
.. rst-class:: classref-item-separator
|
|
|
|
----
|
|
|
|
.. _class_Thread_method_is_started:
|
|
|
|
.. rst-class:: classref-method
|
|
|
|
:ref:`bool<class_bool>` **is_started** **(** **)** |const|
|
|
|
|
Returns ``true`` if this **Thread** has been started. Once started, this will return ``true`` until it is joined using :ref:`wait_to_finish<class_Thread_method_wait_to_finish>`. For checking if a **Thread** is still executing its task, use :ref:`is_alive<class_Thread_method_is_alive>`.
|
|
|
|
.. rst-class:: classref-item-separator
|
|
|
|
----
|
|
|
|
.. _class_Thread_method_start:
|
|
|
|
.. rst-class:: classref-method
|
|
|
|
:ref:`Error<enum_@GlobalScope_Error>` **start** **(** :ref:`Callable<class_Callable>` callable, :ref:`Priority<enum_Thread_Priority>` priority=1 **)**
|
|
|
|
Starts a new **Thread** that calls ``callable``.
|
|
|
|
If the method takes some arguments, you can pass them using :ref:`Callable.bind<class_Callable_method_bind>`.
|
|
|
|
The ``priority`` of the **Thread** can be changed by passing a value from the :ref:`Priority<enum_Thread_Priority>` enum.
|
|
|
|
Returns :ref:`@GlobalScope.OK<class_@GlobalScope_constant_OK>` on success, or :ref:`@GlobalScope.ERR_CANT_CREATE<class_@GlobalScope_constant_ERR_CANT_CREATE>` on failure.
|
|
|
|
.. rst-class:: classref-item-separator
|
|
|
|
----
|
|
|
|
.. _class_Thread_method_wait_to_finish:
|
|
|
|
.. rst-class:: classref-method
|
|
|
|
:ref:`Variant<class_Variant>` **wait_to_finish** **(** **)**
|
|
|
|
Joins the **Thread** and waits for it to finish. Returns the output of the :ref:`Callable<class_Callable>` passed to :ref:`start<class_Thread_method_start>`.
|
|
|
|
Should either be used when you want to retrieve the value returned from the method called by the **Thread** or before freeing the instance that contains the **Thread**.
|
|
|
|
To determine if this can be called without blocking the calling thread, check if :ref:`is_alive<class_Thread_method_is_alive>` is ``false``.
|
|
|
|
.. |virtual| replace:: :abbr:`virtual (This method should typically be overridden by the user to have any effect.)`
|
|
.. |const| replace:: :abbr:`const (This method has no side effects. It doesn't modify any of the instance's member variables.)`
|
|
.. |vararg| replace:: :abbr:`vararg (This method accepts any number of arguments after the ones described here.)`
|
|
.. |constructor| replace:: :abbr:`constructor (This method is used to construct a type.)`
|
|
.. |static| replace:: :abbr:`static (This method doesn't need an instance to be called, so it can be called directly using the class name.)`
|
|
.. |operator| replace:: :abbr:`operator (This method describes a valid operator to use with this type as left-hand operand.)`
|