virtualx-engine/doc/classes/Thread.xml
2018-02-19 10:46:33 +01:00

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XML

<?xml version="1.0" encoding="UTF-8" ?>
<class name="Thread" inherits="Reference" category="Core" version="3.1-dev">
<brief_description>
A unit of execution in a process.
</brief_description>
<description>
A unit of execution in a process. Can run methods on [Object]s simultaneously. The use of synchronization via [Mutex], [Semaphore] is advised if working with shared objects.
</description>
<tutorials>
</tutorials>
<demos>
</demos>
<methods>
<method name="get_id" qualifiers="const">
<return type="String">
</return>
<description>
Returns the current [code]Thread[/code]s id, uniquely identifying it among all threads.
</description>
</method>
<method name="is_active" qualifiers="const">
<return type="bool">
</return>
<description>
Returns true if this [code]Thread[/code] is currently active. An active [code]Thread[/code] cannot start work on a new method but can be joined with [method wait_to_finish].
</description>
</method>
<method name="start">
<return type="int" enum="Error">
</return>
<argument index="0" name="instance" type="Object">
</argument>
<argument index="1" name="method" type="String">
</argument>
<argument index="2" name="userdata" type="Variant" default="null">
</argument>
<argument index="3" name="priority" type="int" default="1">
</argument>
<description>
Starts a new [code]Thread[/code] that runs "method" on object "instance" with "userdata" passed as an argument. The "priority" of the [code]Thread[/code] can be changed by passing a PRIORITY_* enum.
Returns OK on success, or ERR_CANT_CREATE on failure.
</description>
</method>
<method name="wait_to_finish">
<return type="Variant">
</return>
<description>
Joins the [code]Thread[/code] and waits for it to finish. Returns what the method called returned.
</description>
</method>
</methods>
<constants>
<constant name="PRIORITY_LOW" value="0" enum="Priority">
</constant>
<constant name="PRIORITY_NORMAL" value="1" enum="Priority">
</constant>
<constant name="PRIORITY_HIGH" value="2" enum="Priority">
</constant>
</constants>
</class>