# libtmux::CommandRuntimeShutdown::safe_to_unload

- **Module:** libtmux::CommandRuntimeShutdown
- **Package:** libtmux-cxx
- **Language:** C++
- **Kind:** attribute
- **Source:** https://github.com/libtmux/libtmux-cxx/blob/393d4b0ad666f18a6581f1eb281741a75a7503f0/include/libtmux/async.hpp#L69
- **Page:** https://libtmux.org/en/cxx/latest/reference/libtmux-commandruntimeshutdown-safe_to_unload/

True only when transports and pending work ended and no caller-side readiness wait, dispatch or discard, including callback-target teardown, remains active.

Callers must prevent concurrent or later runtime entry before unloading.