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sem_get(): warn that auto_release also applies when the semaphore is freed #5963

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Merged
lacatoire merged 2 commits into from
Oct 19, 2026
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sem_get(): warn that auto_release also applies when the semaphore is freed #5963

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sem_get(): warn that auto_release also applies when the semaphore is …
qodelicious Oct 18, 2026
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qodelicious Oct 19, 2026
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9 changes: 9 additions & 0 deletions reference/sem/functions/sem-get.xml
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Expand Up @@ -120,6 +120,15 @@
otherwise PHP will be unable to access the semaphore.
</simpara>
</warning>
<warning>
<simpara>
If <parameter>auto_release</parameter> is enabled, the acquisitions held by a
<classname>SysvSemaphore</classname> object are also released as soon as the
object is freed, for example when the variable holding it is unset,
overwritten or goes out of scope, not only on request shutdown. Keep a
reference to the object for as long as the semaphore needs to stay acquired.
</simpara>
</warning>
</refsect1>

<refsect1 role="seealso">
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