lix/src/libstore/pathlocks.hh
Eelco Dolstra 588cb0eade * In `nix-env -i|-u|-e', lock the profile to prevent races between
concurrent nix-env operations on the same profile.  Fixes NIX-7.
2006-06-15 11:56:49 +00:00

31 lines
554 B
C++

#ifndef __PATHLOCKS_H
#define __PATHLOCKS_H
#include "util.hh"
typedef enum LockType { ltRead, ltWrite, ltNone };
bool lockFile(int fd, LockType lockType, bool wait);
class PathLocks
{
private:
typedef pair<int, Path> FDPair;
list<FDPair> fds;
bool deletePaths;
public:
PathLocks();
PathLocks(const PathSet & paths,
const string & waitMsg = "");
void lockPaths(const PathSet & _paths,
const string & waitMsg = "");
~PathLocks();
void setDeletion(bool deletePaths);
};
#endif /* !__PATHLOCKS_H */