websocketd/src/instance_storage.cr

# Link between fd and TCPSocket, WebSocket and IPC::Connection instances.
class InstanceStorage
	property is_json : Hash(Int32, Bool)
	property fd_to_websocket : Hash(Int32, WebSocket)

	# So the GC won't close it.
	property fd_to_socket : Hash(Int32, TCPSocket)

	def initialize
		@is_json = Hash(Int32,Bool).new
		@fd_to_websocket = Hash(Int32, WebSocket).new
		@fd_to_socket = Hash(Int32, TCPSocket).new
	end

	def remove_fd (fdclient : Int32)
		puts "#{CBLUE}closing the client:#{CRESET} #{fdclient}"
		# 1. remove the client and the service from is_json
		@is_json.select! do |fd,v| fd != fdclient end

		# 2. remove the client from fd_to_websocket
		@fd_to_websocket.select! do |fd, ws| fd != fdclient end

		# 3. remove the client from fd_to_socket
		@fd_to_socket.select! do |fd, ws| fd != fdclient end
	end
end