[#BloombergLP-bslmt-LockGuardUnlock-2constructor-04] = xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/bslmt.adoc[bslmt]::xref:BloombergLP/bslmt/LockGuardUnlock.adoc[LockGuardUnlock]::LockGuardUnlock :relfileprefix: ../../../ :mrdocs: Create a scoped guard that conditionally manages the specified `lock` (if non‐null) and invokes `lock‐>unlock()`. Supplying a null `lock` has no effect. The behavior is undefined unless `lock` (if non‐null) is locked by this thread. Note that `lock` must remain valid throughout the lifetime of this guard, or until `release` is called. == Synopsis Declared in `<bslmt_lockguard.h>` [source,cpp,subs="verbatim,replacements,macros,-callouts"] ---- explicit LockGuardUnlock(T* lock); ---- [.small]#Created with https://www.mrdocs.com[MrDocs]#