Catching TCPSocket errors

ruby-talk
1

Hi,

since i started network programming in ruby i wondered about the
differnt kind of errors raised. On the one site we have the SocketError
object, on the other site a multiplicity of Errno may occur
(Errno::ECONNREFUSED, Errno::EHOSTUNREACH, etc.)
This becomes quite inconvient to handle as my rescue block looks like
this:

rescue IOError, Errno::ECONNREFUSED, Errno::ECONNRESET,
Errno::ETIMEDOUT,
Errno::ENETUNREACH, Errno::ENOTSOCK, Errno::EHOSTUNREACH, SocketError
=> err

I still don't know if i catch all of them. Isn't there a more convient
way of catching just errors which might happen on TCPSocket?
regards,
christoph

2

Hi,

At Sat, 22 Jan 2005 05:01:02 +0900,
christoph.heindl@gmail.com wrote in [ruby-talk:127579]:

since i started network programming in ruby i wondered about the
differnt kind of errors raised. On the one site we have the SocketError
object, on the other site a multiplicity of Errno may occur
(Errno::ECONNREFUSED, Errno::EHOSTUNREACH, etc.)
This becomes quite inconvient to handle as my rescue block looks like
this:

rescue IOError, Errno::ECONNREFUSED, Errno::ECONNRESET,
Errno::ETIMEDOUT,
Errno::ENETUNREACH, Errno::ENOTSOCK, Errno::EHOSTUNREACH, SocketError
=> err

Errno::* are all subclasses of SystemCallError.

1)
  rescue IOError, SystemCallError, SocketError => err

2)
  ErrorsOnSocket = [IOError,
    Errno::ECONNREFUSED, Errno::ECONNRESET, Errno::ETIMEDOUT,
    Errno::ENETUNREACH, Errno::ENOTSOCK, Errno::EHOSTUNREACH,
    SocketError]

  rescue *ErrorsOnSocket => err

ยทยทยท

--
Nobu Nakada

3

thanks,
that will help :slight_smile:

christoph