Get a single gem name from the command line. Fail if there is no gem name or if there is more than one gem name given.
Creates the following instance variables:
a spec named ‘a’, intended for regular installs
a spec named ‘b’, intended for user installs
the path to a built gem from @spec
the path to a built gem from @user_spec
And returns a Gem::Installer for the @user_spec that installs into Gem.user_dir
The X509 certificate chain for this socket’s peer.
Like Enumerable#select, but chains operation to be lazy-evaluated.
Returns the hash value of a given string. This is equivalent to Digest::Class.new(*parameters).digest(string), where extra parameters, if any, are passed through to the constructor and the string is passed to digest().
Returns the hex-encoded hash value of a given string. This is almost equivalent to Digest.hexencode(Digest::Class.new(*parameters).digest(string)).
Returns the base64 encoded hash value of a given string. The return value is properly padded with ‘=’ and contains no line feeds.
Close this handle.
Calling close more than once will raise a Fiddle::DLError exception.
Array of the currently loaded libraries.
Allocates a C struct with the types provided.
When the instance is garbage collected, the C function func is called.