## Function: SB-THREAD::DEBUGGER-WAIT-UNTIL-FOREGROUND-THREAD
[![package](https://img.shields.io/badge/Package-SB--THREAD-5f9ea0.svg?style=social&colorA=999999)](../) [![type](https://img.shields.io/badge/Type-Function-5f9ea0.svg?style=social&colorA=999999)](../#function) [![github](https://img.shields.io/badge/GitHub-View_the_source-5f9ea0.svg?style=social&colorA=999999&logo=github)](https://github.com/sbcl/sbcl/blob/master/src/code/target-thread.lisp/) 

> Returns T if thread had been running in background, NIL if it was
> interactive.

### Lambda list
```cl
(stream)
```