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29 lines
1.0 KiB
XML
29 lines
1.0 KiB
XML
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<?xml version="1.0" encoding="UTF-8" ?>
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<class name="Semaphore" inherits="Reference" version="3.5">
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<brief_description>
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A synchronization semaphore.
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</brief_description>
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<description>
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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].
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</description>
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<tutorials>
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<link>$DOCS_URL/tutorials/performance/threads/using_multiple_threads.html</link>
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</tutorials>
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<methods>
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<method name="post">
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<return type="int" enum="Error" />
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<description>
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Lowers the [Semaphore], allowing one more thread in. Returns [constant OK] on success, [constant ERR_BUSY] otherwise.
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</description>
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</method>
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<method name="wait">
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<return type="int" enum="Error" />
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<description>
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Tries to wait for the [Semaphore], if its value is zero, blocks until non-zero. Returns [constant OK] on success, [constant ERR_BUSY] otherwise.
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</description>
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</method>
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</methods>
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<constants>
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</constants>
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</class>
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