Class: NETSNMP::Session::Transport

Inherits:
Object
  • Object
show all
Defined in:
lib/netsnmp/session.rb

Constant Summary collapse

MAXPDUSIZE = 
0xffff + 1
SOCK_FLAGS = 
Socket.const_defined?(:MSG_DONTWAIT) ? Socket::MSG_DONTWAIT : 0

Instance Method Summary collapse

Constructor Details

#initialize(host, port, timeout:) ⇒ Transport

Returns a new instance of Transport.



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# File 'lib/netsnmp/session.rb', line 77

def initialize(host, port, timeout:)
  @socket = UDPSocket.new
  @destaddr = Socket.sockaddr_in(port, host)
  @timeout = timeout
end

Instance Method Details

#close ⇒ Object 



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# File 'lib/netsnmp/session.rb', line 83

def close
  @socket.close
end

#recv(bytesize = MAXPDUSIZE) ⇒ Object 



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# File 'lib/netsnmp/session.rb', line 101

def recv(bytesize = MAXPDUSIZE)
  perform_io do
    datagram, = @socket.recv_nonblock(bytesize, SOCK_FLAGS)
    datagram
  end
end

#send(payload) ⇒ Object 



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# File 'lib/netsnmp/session.rb', line 87

def send(payload)
  write(payload)
  recv
end

#write(payload) ⇒ Object 



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# File 'lib/netsnmp/session.rb', line 95

def write(payload)
  perform_io do
    @socket.send(payload, SOCK_FLAGS, @destaddr)
  end
end