tree 54640f83ecd06ddc205227a4ebef18f37d572bf9
parent 83466c2ac1d51c89ff00f8267152f429dcf16e6c
author Krzysztof Chruściński <krzysztof.chruscinski@nordicsemi.no> 1707837134 +0100
committer github-actions[bot] <github-actions[bot]@users.noreply.github.com> 1711637270 +0000

shell: rtt: Add detection of host presence

If host is not reading RTT data (because there is no PC connection
or RTT reading application is not running on the host), thread will
stuck continuously trying to write to RTT. All threads with equal or
lower priority are blocked then. Adding detection of that case and
if host is not reading data for configurable period then data is
dropped until host accepts new data.

Similar solution is using in RTT logging backend.

Signed-off-by: Krzysztof Chruściński <krzysztof.chruscinski@nordicsemi.no>
(cherry picked from commit 04a74ce107e5576d7c114cfba4066e7b854bcde6)