#14533: Make GHC more robust against PC crashes by using atomic writes -------------------------------------+------------------------------------- Reporter: nh2 | Owner: (none) Type: bug | Status: new Priority: normal | Milestone: Component: Build System | Version: 8.2.1 Resolution: | Keywords: Operating System: Unknown/Multiple | Architecture: Type of failure: Compile-time | Unknown/Multiple crash or panic | Test Case: Blocked By: | Blocking: Related Tickets: | Differential Rev(s): Wiki Page: | -------------------------------------+------------------------------------- Comment (by svenpanne): I'm not sure if I understand "atomic writes" here correctly, but e.g. on POSIX systems there is not really much "atomic" regarding I/O. One of the few things is renaming a file, but even that is not atomic depending on the underlying file system (e.g. NFS and/or SMB IIRC). So I think the best a compiler can do is to write its file under a fresh name next to its destination, and rename it when it completed writing it. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/14533#comment:2 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler