Method: Corosync.cs_send!

Defined in:
lib/corosync.rb

.cs_send!(method, *args) ⇒ TrueClass, Integer

Calls a Corosync method and raises an exception on errors. This is a convenience method to handle error responses when calling various corosync library functions. When an error is returned, an exception is raised. The exceptions are programatically generated based off the ‘:cs_error_t` enum defined in `ffi/common.rb`. For example, `:err_try_again` maps to `Corosync::TryAgainError`.

Parameters:

  • name of the method to call

Returns:

  • Returns ‘true` on success, and an integer if the return value is not known (this should not happen unless you’re running a newer version of corosync than the gem was released for).



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# File 'lib/corosync.rb', line 18

def self.cs_send!(method, *args)
  cs_error = nil

  begin
    cs_error = send(method, *args)
  rescue Corosync::Error => e
    e.depth += 1
    raise e
  end

  return true if cs_error == :ok # short circuit the rest of the method since this should be true the majority of the time

  if exception_class = Error::Map[cs_error] then
    exception = exception_class.new("Received #{cs_error.to_s.upcase} during #{method}")
    exception.depth = 1
    raise exception
  end

  cs_error
end