[#BloombergLP-bsls-SpinLock-tryLock]
= xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/bsls.adoc[bsls]::xref:BloombergLP/bsls/SpinLock.adoc[SpinLock]::tryLock
:relfileprefix: ../../../
:mrdocs:

Attempt to acquire the lock; optionally specify the `numRetries` times to attempt again if this object is already locked. Return 0 on success, and a non‐zero value if the lock was not successfully acquired. The behavior is undefined unless `0 <= numRetries`.

== Synopsis

Declared in `<bsls_spinlock.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
int
tryLock(int numRetries = 0);
----


[.small]#Created with https://www.mrdocs.com[MrDocs]#