On 7 July 2013 03:32, Raymond Jennings <shent...@gmail.com> wrote: > Just curious, but how well does ccache resist corruption? > > I assume it takes basic precautions like locking and whatnot? So that two > parallel compiles don't stomp on each other? >
When a ccache process creates a result in the cache, it uses unique names for the temporary files and (on Unix) renames them into place, which is atomic. No locks are used for this. The cache directory also contains some files that contain statistics, and locks in the form of lockfiles (actually symlinks) are used to serialize access to those files. However, if an already cached object file gets corrupted for some reason (e.g. due to filesystem corruption or hardware problems), ccache will happily deliver the object file anyway. This could be solved by letting ccache checksum the object files. -- Joel _______________________________________________ ccache mailing list ccache@lists.samba.org https://lists.samba.org/mailman/listinfo/ccache
