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Name	Size	Permission	Date
bn.rb	650 B	-rw-r--r--	2011-05-20 22:25
buffering.rb	3.72 KB	-rw-r--r--	2010-05-24 23:58
cipher.rb	1.66 KB	-rw-r--r--	2007-06-08 15:02
config.rb	7.32 KB	-rw-r--r--	2010-11-22 07:21
digest.rb	1.44 KB	-rw-r--r--	2010-05-24 23:58
pkcs7.rb	553 B	-rw-r--r--	2007-06-08 15:02
ssl-internal.rb	4.72 KB	-rw-r--r--	2013-06-27 11:22
ssl.rb	18 B	-rw-r--r--	2010-05-24 23:58
x509-internal.rb	4.26 KB	-rw-r--r--	2010-05-24 23:58
x509.rb	18 B	-rw-r--r--	2010-05-24 23:58

Rename

=begin
= $RCSfile$ -- Buffering mix-in module.

= Info
  'OpenSSL for Ruby 2' project
  Copyright (C) 2001 GOTOU YUUZOU <gotoyuzo@notwork.org>
  All rights reserved.

= Licence
  This program is licenced under the same licence as Ruby.
  (See the file 'LICENCE'.)

= Version
  $Id: buffering.rb 28004 2010-05-24 23:58:49Z shyouhei $
=end

module OpenSSL
module Buffering
  include Enumerable
  attr_accessor :sync
  BLOCK_SIZE = 1024*16

def initialize(*args)
    @eof = false
    @rbuffer = ""
    @sync = @io.sync
  end

#
  # for reading.
  #
  private

def fill_rbuff
    begin
      @rbuffer << self.sysread(BLOCK_SIZE)
    rescue Errno::EAGAIN
      retry
    rescue EOFError
      @eof = true
    end
  end

def consume_rbuff(size=nil)
    if @rbuffer.empty?
      nil
    else
      size = @rbuffer.size unless size
      ret = @rbuffer[0, size]
      @rbuffer[0, size] = ""
      ret
    end
  end

public

def read(size=nil, buf=nil)
    if size == 0
      if buf
        buf.clear
      else
        buf = ""
      end
      return @eof ? nil : buf
    end
    until @eof
      break if size && size <= @rbuffer.size
      fill_rbuff
    end
    ret = consume_rbuff(size) || ""
    if buf
      buf.replace(ret)
      ret = buf
    end
    (size && ret.empty?) ? nil : ret
  end

def readpartial(maxlen, buf=nil)
    if maxlen == 0
      if buf
        buf.clear
      else
        buf = ""
      end
      return @eof ? nil : buf
    end
    if @rbuffer.empty?
      begin
        return sysread(maxlen, buf)
      rescue Errno::EAGAIN
        retry
      end
    end
    ret = consume_rbuff(maxlen)
    if buf
      buf.replace(ret)
      ret = buf
    end
    raise EOFError if ret.empty?
    ret
  end

def gets(eol=$/)
    idx = @rbuffer.index(eol)
    until @eof
      break if idx
      fill_rbuff
      idx = @rbuffer.index(eol)
    end
    if eol.is_a?(Regexp)
      size = idx ? idx+$&.size : nil
    else
      size = idx ? idx+eol.size : nil
    end
    consume_rbuff(size)
  end

def each(eol=$/)
    while line = self.gets(eol)
      yield line
    end
  end
  alias each_line each

def readlines(eol=$/)
    ary = []
    while line = self.gets(eol)
      ary << line
    end
    ary
  end

def readline(eol=$/)
    raise EOFError if eof?
    gets(eol)
  end

def getc
    c = read(1)
    c ? c[0] : nil
  end

def each_byte
    while c = getc
      yield(c)
    end
  end

def readchar
    raise EOFError if eof?
    getc
  end

def ungetc(c)
    @rbuffer[0,0] = c.chr
  end

def eof?
    fill_rbuff if !@eof && @rbuffer.empty?
    @eof && @rbuffer.empty?
  end
  alias eof eof?

#
  # for writing.
  #
  private

def do_write(s)
    @wbuffer = "" unless defined? @wbuffer
    @wbuffer << s
    @sync ||= false
    if @sync or @wbuffer.size > BLOCK_SIZE or idx = @wbuffer.rindex($/)
      remain = idx ? idx + $/.size : @wbuffer.length
      nwritten = 0
      while remain > 0
        str = @wbuffer[nwritten,remain]
        begin
          nwrote = syswrite(str)
        rescue Errno::EAGAIN
          retry
        end
        remain -= nwrote
        nwritten += nwrote
      end
      @wbuffer[0,nwritten] = ""
    end
  end

public

def write(s)
    do_write(s)
    s.length
  end

def << (s)
    do_write(s)
    self
  end

def puts(*args)
    s = ""
    if args.empty?
      s << "\n"
    end
    args.each{|arg|
      s << arg.to_s
      if $/ && /\n\z/ !~ s
        s << "\n"
      end
    }
    do_write(s)
    nil
  end

def print(*args)
    s = ""
    args.each{ |arg| s << arg.to_s }
    do_write(s)
    nil
  end

def printf(s, *args)
    do_write(s % args)
    nil
  end

def flush
    osync = @sync
    @sync = true
    do_write ""
    @sync = osync
  end

def close
    flush rescue nil
    sysclose
  end
end
end