tree e9b75a54b4ca71f8acc7ab5245c1350eb328a136
parent 362a279f0ad018574278e72c4e98e2b99d3991bb
author Xinhao Yuan <xinhaoyuan@google.com> 1772238675 -0800
committer Copybara-Service <copybara-worker@google.com> 1772238702 -0800

Avoid interference from destructed Commands by owning the redirected files.

This is needed because sometimes when a command hangs we destruct the object and move on, but the command may still run for a short but uncontrollable period, which still writes to the redirected files. Before this CL we create new Commands using the same redirected file paths. This can cause issue when we try to read them later.

By owning the redirected files, Command can rename them and clean them up to avoid conflict and interference.

There is a bit of changes needed at the use sites (mainly CentipedeCallbacks) to save the last log path/file when needed. But it seems not hard to understand with the new ownership model.

PiperOrigin-RevId: 876461673