update folders

snipplets/code/Crystal/UNIXSockets/by_faustinoaq/client.cr

@@ -0,0 +1,28 @@
+require "socket"
+
+client = UNIXSocket.new("/tmp/myapp.sock")
+
+Signal::INT.trap {
+  client.puts "quit"
+  exit
+}
+
+print "name: "
+name = gets.to_s
+
+spawn {
+  loop {
+    msg = client.gets
+    if msg
+      puts msg
+    else
+      puts "server closed"
+      exit
+    end
+  }
+}
+
+loop {
+  msg = gets.to_s
+  client.puts "#{name}: #{msg}"
+}

snipplets/code/Crystal/UNIXSockets/by_faustinoaq/link.txt

@@ -0,0 +1 @@
+https://github.com/crystal-lang/crystal/issues/4277#issuecomment-294009173

snipplets/code/Crystal/UNIXSockets/by_faustinoaq/server.cr

@@ -0,0 +1,38 @@
+require "socket"
+
+server = UNIXServer.new("/tmp/myapp.sock")
+CLIENTS = [] of UNIXSocket
+
+Signal::INT.trap {
+  puts "closing server..."
+  server.close
+  exit
+}
+
+def on_message(client)
+  loop {
+    msg = client.gets
+    if msg == "quit"
+      puts "deleting client..."
+      CLIENTS.delete client
+      pp CLIENTS.size
+      break
+    else
+      yield msg
+    end
+  }
+end
+
+loop {
+  puts "waiting for client on /tmp/myapp.sock"
+  new_client = server.accept
+  spawn {
+    on_message(new_client) { |msg|
+      CLIENTS.each { |client|
+        client.puts msg unless client == new_client
+      }
+    }
+  }
+  CLIENTS << new_client
+  pp CLIENTS.size
+}

snipplets/code/Crystal/UNIXSockets/client.cr

@@ -0,0 +1,24 @@
+require "socket"
+
+# connect to socket
+sock = UNIXSocket.new("/tmp/myapp.sock")
+
+loop do
+  print "Enter command [help, start, run]: "
+
+  # get string from terminal input
+  string = gets.not_nil!.to_s
+
+  if string == "q"
+    break
+  end
+
+  # send string to server
+  sock.puts "#{string}\n"
+
+  # get response from server & print
+  response = sock.gets
+  puts response
+end
+
+sock.close

snipplets/code/Crystal/UNIXSockets/server.cr

@@ -0,0 +1,46 @@
+require "socket"
+require "file_utils"
+
+SOCKET = "/tmp/myapp.sock"
+
+begin
+  FileUtils.rm(SOCKET)
+rescue e : File::NotFoundError
+end
+
+server = UNIXServer.new(SOCKET)
+CLIENTS = [] of UNIXSocket
+
+Signal::INT.trap do
+  puts "Closing server..."
+  server.close(delete = true)
+
+  exit
+end
+
+def handle_client(client)
+  loop do
+    message = client.gets
+
+    p! client
+
+    if message == "start"
+      puts "::request START command::"
+      client.puts "Hello :)"
+    elsif message == "help"
+      puts "::request HELP command::"
+      client.puts "This example ECHO unix server!"
+    elsif message == "run"
+      puts "::request RUN command::"
+      client.puts "Ready, Set, GO!"
+    else
+      break
+    end
+  end
+end
+
+puts "Listen..."
+
+while client = server.accept
+  spawn handle_client(client)
+end