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Check if deployed esrom node is reachable before executing rpc.

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This commit is contained in:
Pim Kunis 2019-10-24 16:33:52 +02:00
parent ad24ec96ac
commit 45b6408b6b
3 changed files with 9 additions and 2 deletions
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8
morse/lib/morse/worker.ex
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@ -3,6 +3,8 @@ defmodule Morse.Worker do
Functions to control the signal lamp connected with GPIO.
"""
@esrom_node :"esrom@esrom.lan"
@sleep_short 200
@sleep_delay 400
@sleep_long 700
@ -60,10 +62,14 @@ defmodule Morse.Worker do
|> String.to_charlist()
end
# Communicate with a deployed esrom node, if running on a host.
case Application.get_env(:ui, :target) do
:host ->
def toggle_lamp(state) do
:rpc.call(:"esrom@esrom.lan", Morse.Worker, :toggle_lamp, [state])
# Check if the deployed esrom node is online.
if :pong == Node.ping(@esrom_node) do
:rpc.call(@esrom_node, Morse.Worker, :toggle_lamp, [state])
end
end
_ ->