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--- !ruby/object:RI::MethodDescription aliases: [] block_params: comment: - !ruby/struct:SM::Flow::P body: Locks or unlocks a file according to <em>locking_constant</em> (a logical <em>or</em> of the values in the table below). Returns <tt>false</tt> if <tt>File::LOCK_NB</tt> is specified and the operation would otherwise have blocked. Not available on all platforms. - !ruby/struct:SM::Flow::P body: "Locking constants (in class File):" - !ruby/struct:SM::Flow::VERB body: " LOCK_EX | Exclusive lock. Only one process may hold an\n | exclusive lock for a given file at a time.\n ----------+------------------------------------------------\n LOCK_NB | Don't block when locking. May be combined\n | with other lock options using logical or.\n ----------+------------------------------------------------\n LOCK_SH | Shared lock. Multiple processes may each hold a\n | shared lock for a given file at the same time.\n ----------+------------------------------------------------\n LOCK_UN | Unlock.\n" - !ruby/struct:SM::Flow::P body: "Example:" - !ruby/struct:SM::Flow::VERB body: " File.new("testfile").flock(File::LOCK_UN) #=> 0\n" full_name: File#flock is_singleton: false name: flock params: | file.flock (locking_constant ) => 0 or false visibility: public