[#BloombergLP-bslmt-ReadLockGuard]
= xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/bslmt.adoc[bslmt]::ReadLockGuard
:relfileprefix: ../../
:mrdocs:

This class template implements a guard for acquisition and release of read synchronization resources (i&period;e&period;, reader locks)&period;

== Synopsis

Declared in `&lt;bslmt&lowbar;readlockguard&period;h&gt;`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
template&lt;class T&gt;
class ReadLockGuard;
----

== Member Functions

[cols="1,4"]
|===
| Name| Description
| xref:BloombergLP/bslmt/ReadLockGuard/2constructor-06.adoc[`ReadLockGuard`]         [.small]#[constructor]#
| Constructors
| xref:BloombergLP/bslmt/ReadLockGuard/2destructor.adoc[`&#126;ReadLockGuard`] [.small]#[destructor]#
| Destroy this scoped guard and invoke the `unlock` method on the lock object under management by this guard, if any&period; If no lock is currently being managed, this method has no effect&period;
| xref:BloombergLP/bslmt/ReadLockGuard/ptr.adoc[`ptr`] 
| Return the address of the modifiable lock object under management by this guard, or 0 if no lock is currently being managed&period;
| xref:BloombergLP/bslmt/ReadLockGuard/release.adoc[`release`] 
| Return the address of the modifiable lock object under management by this guard, and release the lock from further management by this guard&period; If no lock is currently being managed, return 0 with no other effect&period; Note that this operation does _not_ unlock the lock object (if any) that was under management&period;
|===


== Derived Classes

[cols="1,4"]
|===
| Name| Description
| xref:BloombergLP/bslmt/LockReadGuard.adoc[`LockReadGuard`] 
| DEPRECATED&colon; Use `ReadLockGuard` instead&period;
|===


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