View Source ExClockBoundClient

This is the elixir version of aws clock bound client, to communicate with this service.

Preparation

Make sure the service is running correctly.

Installation

By adding ex_clock_bound_client to your list of dependencies in mix.exs:

def deps do
  [
    {:ex_clock_bound_client, "~> 0.0.1"}
  ]
end

Usage

Runtime Configurations

All configurations are runtime configuration, and have default values.

import Config

config :ex_clock_bound_client,
  clock_bound_socket_path: "/run/clockboundd/clockboundd.sock",
  client_socket_path: Path.expand("./client.sock"),
  recv_timeout: 100, # socket recv timeout
  frequency_error: 1 # Setting clock frequency to 1ppm to match chrony

APIs

There are 5 APIs in this library, and additional deviation/0 are added compared to the official client.

• ExCloudBoundClient.now/0
• ExCloudBoundClient.timing/1
• ExCloudBoundClient.deviation/0
• ExCloudBoundClient.before?/1
• ExCloudBoundClient.after?/1

See t:ExClockBoundClient for details.

Todo

This application is just implement a happy path, all exceptions need to be considered.