* [PATCH] socket: avoid exceptions in wrapper code
@ 2015-11-17 1:05 Eric Wong
0 siblings, 0 replies; only message in thread
From: Eric Wong @ 2015-11-17 1:05 UTC (permalink / raw)
To: spew
* ext/socket/lib/socket.rb (Socket.accept_loop): avoid exceptions
(Socket.udp_server_recv): ditto
Exceptions make debug output noisy and allocations+backtrace
generation hurt performance
---
ext/socket/lib/socket.rb | 14 ++++----------
1 file changed, 4 insertions(+), 10 deletions(-)
diff --git a/ext/socket/lib/socket.rb b/ext/socket/lib/socket.rb
index bc3d38a..14f51fa 100644
--- a/ext/socket/lib/socket.rb
+++ b/ext/socket/lib/socket.rb
@@ -790,11 +790,8 @@ def self.accept_loop(*sockets) # :yield: socket, client_addrinfo
loop {
readable, _, _ = IO.select(sockets)
readable.each {|r|
- begin
- sock, addr = r.accept_nonblock
- rescue IO::WaitReadable
- next
- end
+ sock, addr = r.accept_nonblock(exception: false)
+ next if sock == :wait_readable
yield sock, addr
}
}
@@ -958,11 +955,8 @@ def self.udp_server_sockets(host=nil, port)
#
def self.udp_server_recv(sockets)
sockets.each {|r|
- begin
- msg, sender_addrinfo, _, *controls = r.recvmsg_nonblock
- rescue IO::WaitReadable
- next
- end
+ msg, sender_addrinfo, _, *controls = r.recvmsg_nonblock(exception: false)
+ next if msg == :wait_readable
ai = r.local_address
if ai.ipv6? and pktinfo = controls.find {|c| c.cmsg_is?(:IPV6, :PKTINFO) }
ai = Addrinfo.udp(pktinfo.ipv6_pktinfo_addr.ip_address, ai.ip_port)
--
EW
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