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godot/doc/classes/Semaphore.xml

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Changed the doc class generation to individual files per class. It is also possible to save module files in module directories and the build system will recognize them.
2017-09-12 20:42:36 +00:00
<?xml version="1.0" encoding="UTF-8" ?>
Bump version to 4.1-dev Can't stop, won't stop, they said, huh?
2023-03-01 00:44:37 +00:00
<class name="Semaphore" inherits="RefCounted" version="4.1" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="../class.xsd">
Changed the doc class generation to individual files per class. It is also possible to save module files in module directories and the build system will recognize them.
2017-09-12 20:42:36 +00:00
<brief_description>
Proofread and improve the whole class reference - Document a few more properties and methods - Add more information to many classes - Fix lots of typos and gramar mistakes - Use [code] tags for parameters consistently - Use [b] and [i] tags consistently - Put "Warning:" and "Note:" on their own line to be more visible, and make them always bold - Tweak formatting in code examples to be more readable - Use double quotes consistently - Add more links to third-party technologies
2019-06-21 23:04:47 +00:00
A synchronization semaphore.
Changed the doc class generation to individual files per class. It is also possible to save module files in module directories and the build system will recognize them.
2017-09-12 20:42:36 +00:00
</brief_description>
<description>
Proofread and improve the whole class reference - Document a few more properties and methods - Add more information to many classes - Fix lots of typos and gramar mistakes - Use [code] tags for parameters consistently - Use [b] and [i] tags consistently - Put "Warning:" and "Note:" on their own line to be more visible, and make them always bold - Tweak formatting in code examples to be more readable - Use double quotes consistently - Add more links to third-party technologies
2019-06-21 23:04:47 +00:00
A synchronization semaphore which can be used to synchronize multiple [Thread]s. Initialized to zero on creation. Be careful to avoid deadlocks. For a binary version, see [Mutex].
Robustify multi-threading primitives
2023-01-28 12:34:06 +00:00
[b]Warning:[/b]
To guarantee that the operating system is able to perform proper cleanup (no crashes, no deadlocks), these conditions must be met:
- By the time a [Semaphore]'s reference count reaches zero and therefore it is destroyed, no threads must be waiting on it.
- By the time a [Thread]'s reference count reaches zero and therefore it is destroyed, it must not be waiting on any semaphore.
Changed the doc class generation to individual files per class. It is also possible to save module files in module directories and the build system will recognize them.
2017-09-12 20:42:36 +00:00
</description>
<tutorials>
Replace Godot docs URL with `$DOCS_URL` in XML class reference
2021-11-15 09:43:07 +00:00
<link title="Using multiple threads">$DOCS_URL/tutorials/performance/using_multiple_threads.html</link>
Changed the doc class generation to individual files per class. It is also possible to save module files in module directories and the build system will recognize them.
2017-09-12 20:42:36 +00:00
</tutorials>
<methods>
<method name="post">
doc: Use self-closing tags for `return` and `argument` For the time being we don't support writing a description for those, preferring having all details in the method's description. Using self-closing tags saves half the lines, and prevents contributors from thinking that they should write the argument or return documentation there.
2021-07-30 13:28:05 +00:00
<return type="void" />
Changed the doc class generation to individual files per class. It is also possible to save module files in module directories and the build system will recognize them.
2017-09-12 20:42:36 +00:00
<description>
Drop old semaphore implementation - Removed platform-specific implementations. - Now all semaphores are in-object, unless they need to be conditionally created. - Similarly to `Mutex`, provided a dummy implementation for when `NO_THREADS` is defined. - Similarly to `Mutex`, methods are made `const` for easy use in such contexts. - Language bindings updated: `wait()` and `post()` are now `void`. - Language bindings updated: `try_wait()` added. Bonus: - Rewritten the `#ifdef` in `mutex.h` to meet the code style.
2020-03-03 08:26:42 +00:00
Lowers the [Semaphore], allowing one more thread in.
Changed the doc class generation to individual files per class. It is also possible to save module files in module directories and the build system will recognize them.
2017-09-12 20:42:36 +00:00
</description>
</method>
doc: Sync classref with current source
2020-03-09 09:12:53 +00:00
<method name="try_wait">
Booleanize various sync primitives' wait & locking methods
2023-01-27 10:04:41 +00:00
<return type="bool" />
Drop old semaphore implementation - Removed platform-specific implementations. - Now all semaphores are in-object, unless they need to be conditionally created. - Similarly to `Mutex`, provided a dummy implementation for when `NO_THREADS` is defined. - Similarly to `Mutex`, methods are made `const` for easy use in such contexts. - Language bindings updated: `wait()` and `post()` are now `void`. - Language bindings updated: `try_wait()` added. Bonus: - Rewritten the `#ifdef` in `mutex.h` to meet the code style.
2020-03-03 08:26:42 +00:00
<description>
Booleanize various sync primitives' wait & locking methods
2023-01-27 10:04:41 +00:00
Like [method wait], but won't block, so if the value is zero, fails immediately and returns [code]false[/code]. If non-zero, it returns [code]true[/code] to report success.
Drop old semaphore implementation - Removed platform-specific implementations. - Now all semaphores are in-object, unless they need to be conditionally created. - Similarly to `Mutex`, provided a dummy implementation for when `NO_THREADS` is defined. - Similarly to `Mutex`, methods are made `const` for easy use in such contexts. - Language bindings updated: `wait()` and `post()` are now `void`. - Language bindings updated: `try_wait()` added. Bonus: - Rewritten the `#ifdef` in `mutex.h` to meet the code style.
2020-03-03 08:26:42 +00:00
</description>
</method>
doc: Sync classref with current source
2020-03-09 09:12:53 +00:00
<method name="wait">
doc: Use self-closing tags for `return` and `argument` For the time being we don't support writing a description for those, preferring having all details in the method's description. Using self-closing tags saves half the lines, and prevents contributors from thinking that they should write the argument or return documentation there.
2021-07-30 13:28:05 +00:00
<return type="void" />
Changed the doc class generation to individual files per class. It is also possible to save module files in module directories and the build system will recognize them.
2017-09-12 20:42:36 +00:00
<description>
doc: Sync classref with current source
2020-03-09 09:12:53 +00:00
Waits for the [Semaphore], if its value is zero, blocks until non-zero.
Changed the doc class generation to individual files per class. It is also possible to save module files in module directories and the build system will recognize them.
2017-09-12 20:42:36 +00:00
</description>
</method>
</methods>
</class>
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