Module: Buffering

Includes:
Enumerable
Included in:
OpenSSL::SSL::SSLSocket
Defined in:
lib/openssl/buffering.rb

Overview

$RCSfile: buffering.rb,v $ – Buffering mix-in module.

Info

'OpenSSL for Ruby 2' project
Copyright (C) 2001 GOTOU YUUZOU <[email protected]>
All rights reserved.

Licence

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

Version

$Id: buffering.rb,v 1.5.2.4 2005/09/04 22:03:24 gotoyuzo Exp $

Constant Summary collapse

BLOCK_SIZE =
1024*16

Instance Attribute Summary collapse

Instance Method Summary collapse

Instance Attribute Details

#syncObject

Returns the value of attribute sync.



19
20
21
# File 'lib/openssl/buffering.rb', line 19

def sync
  @sync
end

Instance Method Details

#<<(s) ⇒ Object



196
197
198
199
# File 'lib/openssl/buffering.rb', line 196

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

#closeObject



235
236
237
238
# File 'lib/openssl/buffering.rb', line 235

def close
  flush rescue nil
  sysclose
end

#each(eol = $/) ⇒ Object Also known as: each_line



117
118
119
120
121
# File 'lib/openssl/buffering.rb', line 117

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

#each_byteObject



142
143
144
145
146
# File 'lib/openssl/buffering.rb', line 142

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

#eof?Boolean Also known as: eof

Returns:

  • (Boolean)


157
158
159
160
# File 'lib/openssl/buffering.rb', line 157

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

#flushObject



228
229
230
231
232
233
# File 'lib/openssl/buffering.rb', line 228

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

#getcObject



137
138
139
140
# File 'lib/openssl/buffering.rb', line 137

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

#gets(eol = $/) ⇒ Object



102
103
104
105
106
107
108
109
110
111
112
113
114
115
# File 'lib/openssl/buffering.rb', line 102

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

#initialize(*args) ⇒ Object



22
23
24
25
26
# File 'lib/openssl/buffering.rb', line 22

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


216
217
218
219
220
221
# File 'lib/openssl/buffering.rb', line 216

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

#printf(s, *args) ⇒ Object



223
224
225
226
# File 'lib/openssl/buffering.rb', line 223

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

#puts(*args) ⇒ Object



201
202
203
204
205
206
207
208
209
210
211
212
213
214
# File 'lib/openssl/buffering.rb', line 201

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

#read(size = nil, buf = nil) ⇒ Object



56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
# File 'lib/openssl/buffering.rb', line 56

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

#readcharObject

Raises:

  • (EOFError)


148
149
150
151
# File 'lib/openssl/buffering.rb', line 148

def readchar
  raise EOFError if eof?
  getc
end

#readline(eol = $/) ⇒ Object

Raises:

  • (EOFError)


132
133
134
135
# File 'lib/openssl/buffering.rb', line 132

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

#readlines(eol = $/) ⇒ Object



124
125
126
127
128
129
130
# File 'lib/openssl/buffering.rb', line 124

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

#readpartial(maxlen, buf = nil) ⇒ Object

Raises:

  • (EOFError)


77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
# File 'lib/openssl/buffering.rb', line 77

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

#ungetc(c) ⇒ Object



153
154
155
# File 'lib/openssl/buffering.rb', line 153

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

#write(s) ⇒ Object



191
192
193
194
# File 'lib/openssl/buffering.rb', line 191

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