Archive::Zip::Codec::NullEncryption::Encrypt is a writable, IO-like object which writes all data written to it directly to a delegate IO object. A close method is also provided which can optionally closed the delegate object.
Creates a new instance of this class using io as a data sink. io must be writable and must provide a write method as IO does or errors will be raised when performing write operations.
The flush_size attribute is set to 0 by default under the assumption that io is already buffered.
# File lib/archive/zip/codec/null_encryption.rb, line 38 def initialize(io) @io = io # Keep track of the total number of bytes written. @total_bytes_in = 0 # Assume that the delegate IO object is already buffered. self.flush_size = 0 end
Creates a new instance of this class with the given argument using new and then passes the instance to the given block. The close method is guaranteed to be called after the block completes.
Equivalent to new if no block is given.
# File lib/archive/zip/codec/null_encryption.rb, line 21 def self.open(io) encrypt_io = new(io) return encrypt_io unless block_given? begin yield(encrypt_io) ensure encrypt_io.close unless encrypt_io.closed? end end
Closes this object so that further write operations will fail. If close_delegate is true, the delegate object used as a data sink will also be closed using its close method.
# File lib/archive/zip/codec/null_encryption.rb, line 51 def close(close_delegate = true) super() @io.close if close_delegate end
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