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Versions: 64
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Contents
# encoding: ascii-8bit
# Copyright 2014 Ball Aerospace & Technologies Corp.
# All Rights Reserved.
#
# This program is free software; you can modify and/or redistribute it
# under the terms of the GNU General Public License
# as published by the Free Software Foundation; version 3 with
# attribution addendums as found in the LICENSE.txt
# This file updates the Ruby SNMP gem for non-blocking sockets
# to work around potential process lockups.
#
# Known to work with SNMP Version 1.0.2
# Note requires SNMP Ruby Gem - gem install snmp
require 'snmp'
old_verbose = $VERBOSE; $VERBOSE = nil
module SNMP
class UDPTransport
def recv(max_bytes)
# Implement blocking using recvfrom_nonblock to prevent potential
# ruby thread deadlock
begin
data, host_info = @socket.recvfrom_nonblock(max_bytes)
return data
rescue Errno::EAGAIN, Errno::EWOULDBLOCK
IO.fast_select([@socket])
retry
end
end
end
class UDPServerTransport
def recvfrom(max_bytes)
# Implement blocking using recvfrom_nonblock to prevent potential
# ruby thread deadlock
begin
data, host_info = @socket.recvfrom_nonblock(max_bytes)
rescue Errno::EAGAIN, Errno::EWOULDBLOCK
IO.fast_select([@socket])
retry
end
flags, host_port, host_name, host_ip = host_info
return data, host_ip, host_port
end
end
end
$VERBOSE = old_verbose
Version data entries
64 entries across 64 versions & 1 rubygems