mirror of
https://github.com/Relintai/pandemonium_engine.git
synced 2024-12-27 14:17:37 +01:00
57 lines
2.4 KiB
XML
57 lines
2.4 KiB
XML
<?xml version="1.0" encoding="UTF-8" ?>
|
|
<class name="RWLock" inherits="Reference" version="3.12">
|
|
<brief_description>
|
|
A Read Write Lock.
|
|
</brief_description>
|
|
<description>
|
|
A Read Write Lock. This is used to synchronize multiple [Thread]s. This guarantees that only one thread can ever acquire the write lock at a time, and gives any number of threads read access in the meantime. An RWLock can be used to protect a critical section; however, be careful to avoid deadlocks.
|
|
</description>
|
|
<tutorials>
|
|
</tutorials>
|
|
<methods>
|
|
<method name="read_lock">
|
|
<return type="void" />
|
|
<description>
|
|
Locks this [RWLock] for read access, blocks until it is unlocked by the current owner.
|
|
[b]Note:[/b] This function returns without blocking if the thread already has ownership of the rwlock.
|
|
</description>
|
|
</method>
|
|
<method name="read_try_lock">
|
|
<return type="int" enum="Error" />
|
|
<description>
|
|
Tries locking this [RWLock] for read access, but does not block. Returns [constant OK] on success, [constant ERR_BUSY] otherwise.
|
|
[b]Note:[/b] This function returns [constant OK] if the thread already has ownership of the rwlock.
|
|
</description>
|
|
</method>
|
|
<method name="read_unlock">
|
|
<return type="void" />
|
|
<description>
|
|
Unlocks this [RWLock] for read access, leaving it to other threads.
|
|
[b]Note:[/b] If a thread called [method lock] or [method try_lock] multiple times while already having ownership of the rwlock, it must also call [method unlock] the same number of times in order to unlock it correctly.
|
|
</description>
|
|
</method>
|
|
<method name="write_lock">
|
|
<return type="void" />
|
|
<description>
|
|
Locks this [RWLock] for write access, blocks until it is unlocked by the current owner.
|
|
[b]Note:[/b] This function will deadlock if the thread already has ownership of the rwlock!
|
|
</description>
|
|
</method>
|
|
<method name="write_try_lock">
|
|
<return type="int" enum="Error" />
|
|
<description>
|
|
Tries locking this [RWLock] for write access, but does not block. Returns [constant OK] on success, [constant ERR_BUSY] otherwise.
|
|
[b]Note:[/b] This function returns [constant ERR_BUSY] if the thread already has ownership of the rwlock.
|
|
</description>
|
|
</method>
|
|
<method name="write_unlock">
|
|
<return type="void" />
|
|
<description>
|
|
Unlocks this [RWLock] for write access, leaving it to other threads.
|
|
</description>
|
|
</method>
|
|
</methods>
|
|
<constants>
|
|
</constants>
|
|
</class>
|