Issue #14404 has been reported by janko (Janko Marohni).

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Feature #14404: Adding writev support to IO#write_nonblock
https://bugs.ruby-lang.org/issues/14404

* Author: janko (Janko Marohni)
* Status: Open
* Priority: Normal
* Assignee: 
* Target version: 
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In Ruby 2.5 IO#write received writev support (https://github.com/ruby/ruby/commit/3efa7126e5e853f06cdd78d4d88837aeb72a9a3e), allowing it to accept multiple arguments and utilize writev when available.

Would it be possible to add this feature to IO#write_nonblock as well? IO#write_nonblock is used by the HTTP.rb and Socketry gems to implement their "write timeout" feature (the same way that IO#read_nonblock is used in Net::HTTP to implement "read timeout"). Since IO#write_nonblock doesn't yet support writev, at the moment it's not possible for HTTP.rb and Socketry to utilize writev when the "write timeout" is specified.



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