Find a file lock.
#include <util/ulocks.h>
NEOERR *fFind(int *plock, const char *file);
plock - place for lock.
file - path of file to use as lock.
Find a file identified by the path <file>, and returns a lock identifier for it in <plock>. If the file doesn't exist, returns true.
MT-Level: Safe.
plock - set to lock identifier.