Class: Mongo::Server::RoundTripTimeAverager Private

Inherits:
Object
  • Object
show all
Defined in:
build/ruby-driver-v2.19/lib/mongo/server/round_trip_time_averager.rb

Overview

This class is part of a private API. You should avoid using this class if possible, as it may be removed or be changed in the future.

Since:

  • 2.0.0

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize ⇒ RoundTripTimeAverager

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.

Returns a new instance of RoundTripTimeAverager.

Since:

  • 2.0.0



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# File 'build/ruby-driver-v2.19/lib/mongo/server/round_trip_time_averager.rb', line 28

def initialize
  @last_round_trip_time = nil
  @average_round_trip_time = nil
end

Instance Attribute Details

#average_round_trip_time ⇒ Object (readonly)

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.

Since:

  • 2.0.0



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# File 'build/ruby-driver-v2.19/lib/mongo/server/round_trip_time_averager.rb', line 34

def average_round_trip_time
  @average_round_trip_time
end

#last_round_trip_time ⇒ Object (readonly)

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.

Since:

  • 2.0.0



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# File 'build/ruby-driver-v2.19/lib/mongo/server/round_trip_time_averager.rb', line 33

def last_round_trip_time
  @last_round_trip_time
end

Instance Method Details

#measure ⇒ Object

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.

Since:

  • 2.0.0



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# File 'build/ruby-driver-v2.19/lib/mongo/server/round_trip_time_averager.rb', line 36

def measure
  start = Utils.monotonic_time
  begin
    rv = yield
  rescue Error::SocketError, Error::SocketTimeoutError
    # If we encountered a network error, the round-trip is not
    # complete and thus RTT for it does not make sense.
    raise
  rescue Error, Error::AuthError => exc
    # For other errors, RTT is valid.
  end
  last_round_trip_time = Utils.monotonic_time - start

  # If hello fails, we need to return the last round trip time
  # because it is used in the heartbeat failed SDAM event,
  # but we must not update the round trip time recorded in the server.
  unless exc
    @last_round_trip_time = last_round_trip_time
    update_average_round_trip_time
  end

  if exc
    raise exc
  else
    rv
  end
end