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

62 lines
2.0 KiB
ReStructuredText

:github_url: hide
.. Generated automatically by doc/tools/makerst.py in Godot's source tree.
.. DO NOT EDIT THIS FILE, but the Mutex.xml source instead.
.. The source is found in doc/classes or modules/<name>/doc_classes.
.. _class_Mutex:
Mutex
=====
**Inherits:** :ref:`Reference<class_Reference>` **<** :ref:`Object<class_Object>`
**Category:** Core
Brief Description
-----------------
A synchronization Mutex.
Methods
-------
+---------------------------------------+----------------------------------------------------------+
| void | :ref:`lock<class_Mutex_method_lock>` **(** **)** |
+---------------------------------------+----------------------------------------------------------+
| :ref:`Error<enum_@GlobalScope_Error>` | :ref:`try_lock<class_Mutex_method_try_lock>` **(** **)** |
+---------------------------------------+----------------------------------------------------------+
| void | :ref:`unlock<class_Mutex_method_unlock>` **(** **)** |
+---------------------------------------+----------------------------------------------------------+
Description
-----------
A synchronization Mutex. Element used to synchronize multiple :ref:`Thread<class_Thread>`\ s. Basically a binary :ref:`Semaphore<class_Semaphore>`. Guarantees that only one thread can ever acquire this lock at a time. Can be used to protect a critical section. Be careful to avoid deadlocks.
Method Descriptions
-------------------
.. _class_Mutex_method_lock:
- void **lock** **(** **)**
Lock this ``Mutex``, blocks until it is unlocked by the current owner.
----
.. _class_Mutex_method_try_lock:
- :ref:`Error<enum_@GlobalScope_Error>` **try_lock** **(** **)**
Try locking this ``Mutex``, does not block. Returns :ref:`@GlobalScope.OK<class_@GlobalScope_constant_OK>` on success, :ref:`@GlobalScope.ERR_BUSY<class_@GlobalScope_constant_ERR_BUSY>` otherwise.
----
.. _class_Mutex_method_unlock:
- void **unlock** **(** **)**
Unlock this ``Mutex``, leaving it to other threads.