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| author | normal <normal@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2015-05-29 02:24:18 +0000 |
|---|---|---|
| committer | normal <normal@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2015-05-29 02:24:18 +0000 |
| commit | 9dd4ccf16994ff6228ab9afb33f2df4556212a28 (patch) | |
| tree | 77defb6e5c5cc03585e032b243a0c8513fd671eb /ChangeLog | |
| parent | 05ab1d67b3ffd23750304c00486e09dcd4b8e787 (diff) | |
| download | ruby-9dd4ccf16994ff6228ab9afb33f2df4556212a28.tar.gz | |
socket: avoid redundant fcntl on Linux
* ext/socket/ancdata.c (bsock_sendmsg_internal,
bsock_recvmsg_internal):
avoid redundant fcntl on Linux
[ruby-core:69154] [Feature #11145]
* ext/socket/init.c (rsock_s_recvfrom_nonblock): ditto
* ext/socket/rubysocket.h (MSG_DONTWAIT_RELIABLE): new macro
MSG_DONTWAIT is enough to force non-blocking I/O under Linux,
so avoid changing the state of a socket. This will allow certain
threads to do a non-destructive non-blocking "peek" while others
block (without relying on an extra ppoll syscall).
We shall be conservative about enabling this feature since some
OSes may have incomplete support for MSG_DONTWAIT. I shall
defer to a FreeBSD expert to enable that for FreeBSD.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@50666 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Diffstat (limited to 'ChangeLog')
| -rw-r--r-- | ChangeLog | 9 |
1 files changed, 9 insertions, 0 deletions
@@ -1,3 +1,12 @@ +Fri May 29 11:18:58 2015 Eric Wong <e@80x24.org> + + * ext/socket/ancdata.c (bsock_sendmsg_internal, + bsock_recvmsg_internal): + avoid redundant fcntl on Linux + [ruby-core:69154] [Feature #11145] + * ext/socket/init.c (rsock_s_recvfrom_nonblock): ditto + * ext/socket/rubysocket.h (MSG_DONTWAIT_RELIABLE): new macro + Fri May 29 10:30:34 2015 Eric Wong <e@80x24.org> * lib/net/resolv.rb (request): use monotonic clock |