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author | normal <normal@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2017-04-19 01:08:16 +0000 |
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committer | normal <normal@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2017-04-19 01:08:16 +0000 |
commit | dbf0c0620252d3a0d6d0c0e38cafe41ad24b959f (patch) | |
tree | a92b3b9275d623968562e7e984375e80a67ff8b8 /ext/Setup.atheos | |
parent | 0ba8abac3f4957fe60683d4218d1a316d32cfb4b (diff) | |
download | ruby-dbf0c0620252d3a0d6d0c0e38cafe41ad24b959f.tar.gz |
socket: avoid fcntl for read/write_nonblock on Linux
On platforms where MSG_DONTWAIT works reliably on all sockets
(so far, I know of Linux), we can avoid fcntl syscalls and
implement IO#write_nonblock and IO#read_nonblock in terms of the
socket-specific send and recv family of syscalls.
This avoids side effects on the socket, and also encourages
generic code to be written in cases where IO wrappers like
OpenSSL::SSL::SSLSocket are used.
Perhaps in the future, side-effect-free non-blocking I/O can
be standard on all files and OSes: https://cr.yp.to/unix/nonblock.html
* ext/socket/lib/socket.rb (read_nonblock, write_nonblock):
Linux-specific wrapper without side effects
[ruby-core:80780] [Feature #13362]
* test/socket/test_basicsocket.rb (test_read_write_nonblock):
new test
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@58400 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Diffstat (limited to 'ext/Setup.atheos')
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