Pádraig Brady wrote: > wc is a essentially a digesting function like sha etc. > in that it produces a 1 line summary per file. > The attached patch ensures that those lines are output > atomically for concurrent wc processes. > > Note in general one can use `stdbuf -oL cmd` to line-buffer > a process which outputs to stdout, but I think this > should be done internally in this case. ... > + wc now prints counts atomically so that concurrent > + processes will not intersperse their output. > + [the bug dates back to the initial implementation]
Nice. Thanks! You might want to cast this as an improvement, rather than a bug fix. This made me think of doing the same for du, but I'm hesitant. Many tools parse a single (voluminous) stream of du output, and forcing that to be line-buffered sounds like it'd impose too much of a penalty.
