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authornormal <normal@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>2015-11-17 01:05:30 +0000
committernormal <normal@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>2015-11-17 01:05:30 +0000
commiteda2441b5354829bea9225a99e0b96f0ba40b7ab (patch)
tree6eca4779f256042dab98c3f20b28597be448cc27 /ext/socket/lib
parent416c50f574fe9d13357b184c415c1bcda7c9e1eb (diff)
socket: avoid arg parsing in bsock_sendmsg_internal
* ext/socket/ancdata.c (bsock_sendmsg_internal): avoid arg parsing [ruby-core:71439] [Feature #11339] (rsock_bsock_sendmsg): make private, adjust for above (rsock_bsock_sendmsg_nonblock): ditto * ext/socket/rubysocket.h: adjust prototypes (rsock_opt_false_p): remove * ext/socket/basicsocket.c (rsock_init_basicsocket): define private methods * ext/socket/lib/socket.rb (BasicSocket#sendmsg): new wrapper (BasicSocket#sendmsg_nonblock): ditto target 0: a (ruby 2.3.0dev (2015-11-12 trunk 52550) [x86_64-linux]) target 1: b (ruby 2.3.0dev (2015-11-12 avoid-kwarg-capi 52550) [x86_64-linux] ----------------------------------------------------------- sendmsg_nonblock require 'socket' nr = 1_000_000 i = 0 msg = '.' buf = '.' begin r, w = UNIXSocket.pair(:SEQPACKET) while i < nr i += 1 w.sendmsg_nonblock(msg, exception: false) r.recv(1, 0, buf) end ensure r.close w.close end ----------------------------------------------------------- raw data: [["sendmsg_nonblock", [[1.875997293740511, 1.8452614955604076, 1.8449317328631878, 1.8418389447033405, 1.869386937469244], [1.5175109766423702, 1.4987873211503029, 1.4989623799920082, 1.47918451577425, 1.5017359890043736]]]] Elapsed time: 16.775453245 (sec) ----------------------------------------------------------- benchmark results: minimum results in each 5 measurements. Execution time (sec) name a b sendmsg_nonblock 1.842 1.479 Speedup ratio: compare with the result of `a' (greater is better) name b sendmsg_nonblock 1.245 git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@52603 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Diffstat (limited to 'ext/socket/lib')
-rw-r--r--ext/socket/lib/socket.rb50
1 files changed, 50 insertions, 0 deletions
diff --git a/ext/socket/lib/socket.rb b/ext/socket/lib/socket.rb
index 9e85318..705a0b8 100644
--- a/ext/socket/lib/socket.rb
+++ b/ext/socket/lib/socket.rb
@@ -276,6 +276,56 @@ class BasicSocket < IO
end
# call-seq:
+ # basicsocket.sendmsg(mesg, flags=0, dest_sockaddr=nil, *controls) => numbytes_sent
+ #
+ # sendmsg sends a message using sendmsg(2) system call in blocking manner.
+ #
+ # _mesg_ is a string to send.
+ #
+ # _flags_ is bitwise OR of MSG_* constants such as Socket::MSG_OOB.
+ #
+ # _dest_sockaddr_ is a destination socket address for connection-less socket.
+ # It should be a sockaddr such as a result of Socket.sockaddr_in.
+ # An Addrinfo object can be used too.
+ #
+ # _controls_ is a list of ancillary data.
+ # The element of _controls_ should be Socket::AncillaryData or
+ # 3-elements array.
+ # The 3-element array should contains cmsg_level, cmsg_type and data.
+ #
+ # The return value, _numbytes_sent_ is an integer which is the number of bytes sent.
+ #
+ # sendmsg can be used to implement send_io as follows:
+ #
+ # # use Socket::AncillaryData.
+ # ancdata = Socket::AncillaryData.int(:UNIX, :SOCKET, :RIGHTS, io.fileno)
+ # sock.sendmsg("a", 0, nil, ancdata)
+ #
+ # # use 3-element array.
+ # ancdata = [:SOCKET, :RIGHTS, [io.fileno].pack("i!")]
+ # sock.sendmsg("\0", 0, nil, ancdata)
+ def sendmsg(mesg, flags = 0, dest_sockaddr = nil, *controls)
+ __sendmsg(mesg, flags, dest_sockaddr, controls)
+ end
+
+ # call-seq:
+ # basicsocket.sendmsg_nonblock(mesg, flags=0, dest_sockaddr=nil, *controls, opts={}) => numbytes_sent
+ #
+ # sendmsg_nonblock sends a message using sendmsg(2) system call in non-blocking manner.
+ #
+ # It is similar to BasicSocket#sendmsg
+ # but the non-blocking flag is set before the system call
+ # and it doesn't retry the system call.
+ #
+ # By specifying `exception: false`, the _opts_ hash allows you to indicate
+ # that sendmsg_nonblock should not raise an IO::WaitWritable exception, but
+ # return the symbol :wait_writable instead.
+ def sendmsg_nonblock(mesg, flags = 0, dest_sockaddr = nil, *controls,
+ exception: true)
+ __sendmsg_nonblock(mesg, flags, dest_sockaddr, controls, exception)
+ end
+
+ # call-seq:
# basicsocket.recv_nonblock(maxlen [, flags [, buf [, options ]]]) => mesg
#
# Receives up to _maxlen_ bytes from +socket+ using recvfrom(2) after