IO#sysread blocks
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Key: JRUBY-5595
URL: http://jira.codehaus.org/browse/JRUBY-5595
Project: JRuby
Issue Type: Bug
Affects Versions: JRuby 1.6
Reporter: Mike Perham
Assignee: Thomas E Enebo
On 1.8.7 and 1.9.2, IO#sysread(count) will throw EAGAIN if there is no buffer
to read, allowing me to do low-level, non-blocking IO. It will return partial
buffer too so if I ask for 10 bytes and there are 4 bytes available, it will
return just 4 bytes, not block for the other 6.
Here's the code I use in Dalli:
https://github.com/mperham/dalli/blob/master/lib/dalli/socket.rb#L101
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