[#BloombergLP-bslmt-Sluice-enter] = xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/bslmt.adoc[bslmt]::xref:BloombergLP/bslmt/Sluice.adoc[Sluice]::enter :relfileprefix: ../../../ :mrdocs: Enter this sluice, and return the token on which the calling thread must subsequently wait. The behavior is undefined unless `wait` or `timedWait` is invoked with the token before this sluice is destroyed. == Synopsis Declared in `<bslmt_sluice.h>` [source,cpp,subs="verbatim,replacements,macros,-callouts"] ---- void const* enter(); ---- [.small]#Created with https://www.mrdocs.com[MrDocs]#