[#BloombergLP-balb-PipeControlChannel-setPermissions]
= xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/balb.adoc[balb]::xref:BloombergLP/balb/PipeControlChannel.adoc[PipeControlChannel]::setPermissions
:relfileprefix: ../../../
:mrdocs:

Set the permission bit mask for the underlying named pipe to the specified `permissions` value. The behavior is undefined unless `bdls::FilePermissions::isValidBaseBits(permissions)`. This setting only takes effect on the next call to `start`; calling this method has no effect on a pipe that has already been opened. See the class‐level documentation for a description of the cross‐platform semantics. The behavior is undefined if this method is called while the background thread is running (i.e., after `start` and before `shutdown`), or if the `permissions` value is not valid.

== Synopsis

Declared in `<balb_pipecontrolchannel.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
void
setPermissions(int permissions);
----


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