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-rw-r--r--lib/readbytes.rb20
1 files changed, 10 insertions, 10 deletions
diff --git a/lib/readbytes.rb b/lib/readbytes.rb
index 08b92da73c..ebb5fc0bd4 100644
--- a/lib/readbytes.rb
+++ b/lib/readbytes.rb
@@ -1,22 +1,22 @@
-# readbytes.rb
-#
-# add IO#readbytes, which reads fixed sized data.
-# it guarantees read data size.
+# TruncatedDataError is raised when IO#readbytes fails to read enough data.
class TruncatedDataError<IOError
- def initialize(mesg, data)
+ def initialize(mesg, data) # :nodoc:
@data = data
super(mesg)
end
+
+ # The read portion of an IO#readbytes attempt.
attr_reader :data
end
class IO
- # reads exactly n bytes from the IO stream.
- # If the data read is nil, raises EOFError.
- # If the data read is too short, raises TruncatedDataError.
- # The method TruncatedDataError#data may be used to obtain
- # the truncated message.
+ # Reads exactly +n+ bytes.
+ #
+ # If the data read is nil an EOFError is raised.
+ #
+ # If the data read is too short a TruncatedDataError is raised and the read
+ # data is obtainable via its #data method.
def readbytes(n)
str = read(n)
if str == nil