## Macro: SB-INT:WITH-PROGRESSIVE-TIMEOUT [![package](https://img.shields.io/badge/Package-SB--INT-5f9ea0.svg?style=social&colorA=999999)](../) [![type](https://img.shields.io/badge/Type-Macro-5f9ea0.svg?style=social&colorA=999999)](../#macro) > Binds NAME as a local function for BODY. Each time #'NAME is called, it > returns SECONDS minus the time that has elapsed since BODY was entered, or > zero if more time than SECONDS has elapsed. If SECONDS is NIL, #'NAME > returns NIL each time. ### Lambda list ```cl ((sb-thread::name &key sb-thread::seconds) &body sb-thread::body) ```