diff options
Diffstat (limited to 'src/nix-env/profiles.hh')
-rw-r--r-- | src/nix-env/profiles.hh | 55 |
1 files changed, 0 insertions, 55 deletions
diff --git a/src/nix-env/profiles.hh b/src/nix-env/profiles.hh deleted file mode 100644 index 30d2376d998c..000000000000 --- a/src/nix-env/profiles.hh +++ /dev/null @@ -1,55 +0,0 @@ -#pragma once - -#include "types.hh" -#include "pathlocks.hh" - -#include <time.h> - - -namespace nix { - - -struct Generation -{ - int number; - Path path; - time_t creationTime; - Generation() - { - number = -1; - } - operator bool() const - { - return number != -1; - } -}; - -typedef list<Generation> Generations; - - -/* Returns the list of currently present generations for the specified - profile, sorted by generation number. */ -Generations findGenerations(Path profile, int & curGen); - -Path createGeneration(Path profile, Path outPath); - -void deleteGeneration(const Path & profile, unsigned int gen); - -void switchLink(Path link, Path target); - -/* Ensure exclusive access to a profile. Any command that modifies - the profile first acquires this lock. */ -void lockProfile(PathLocks & lock, const Path & profile); - -/* Optimistic locking is used by long-running operations like `nix-env - -i'. Instead of acquiring the exclusive lock 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. */ -string optimisticLockProfile(const Path & profile); - -} |