From d3cf61b05d9507e7b6ea5a1a1192e107a8612049 Mon Sep 17 00:00:00 2001 From: Eric Wong Date: Sun, 13 Dec 2015 12:19:00 +0000 Subject: switch to exception-free non-blocking I/O Ruby 2.3 will have `exception: false' support in socket-related classes. Additionally, 2.3 will implement the existing IO#*_nonblock methods more efficiently than before by avoiding the hash allocation necessary for keywords. For users on older Rubies, we'll continue supporting them with compatibility wrappers; even Ruby 1.9.3 users (for now). --- lib/dtas/nonblock.rb | 24 ++++++++++++++++++++++++ 1 file changed, 24 insertions(+) create mode 100644 lib/dtas/nonblock.rb (limited to 'lib/dtas/nonblock.rb') diff --git a/lib/dtas/nonblock.rb b/lib/dtas/nonblock.rb new file mode 100644 index 0000000..c8beecd --- /dev/null +++ b/lib/dtas/nonblock.rb @@ -0,0 +1,24 @@ +# Copyright (C) 2015 all contributors +# License: GPL-3.0+ (https://www.gnu.org/licenses/gpl-3.0.txt) + +class DTAS::Nonblock < IO + if RUBY_VERSION.to_f <= 2.0 + EX = {}.freeze + def read_nonblock(len, buf = nil, opts = EX) + super(len, buf) + rescue IO::WaitReadable + raise if opts[:exception] + :wait_readable + rescue EOFError + raise if opts[:exception] + nil + end + + def write_nonblock(buf, opts = EX) + super(buf) + rescue IO::WaitWritable + raise if opts[:exception] + :wait_writable + end + end +end -- cgit v1.2.3-24-ge0c7