Eelco Dolstra 339c142009 * Use optimistic profile locking for nix-env operations like `-i' and ... `-u'. Instead of acquiring an exclusive lock on the profile for the entire duration of the operation, we just perform the operation optimistically (without an exclusive lock), and check at the end whether the profile changed while we were busy (i.e., the symlink target changed). If so, the operation is restarted. Restarting is generally cheap, since the build results are still in the Nix store. Most of the time, only the user environment has to be rebuilt.		2008-08-04 16:21:45 +00:00
..
help.txt	* More documentation.	2007-12-31 02:52:17 +00:00
Makefile.am	* Export the nix-env derivation name parsing and version comparison	2008-07-01 10:10:32 +00:00
nix-env.cc	* Use optimistic profile locking for nix-env operations like `-i' and	2008-08-04 16:21:45 +00:00
profiles.cc	* Allow unprivileged users to run the garbage collector and to do	2006-12-05 02:18:46 +00:00
profiles.hh	* Missing #include.	2006-09-05 10:32:47 +00:00