answer question 1 in assignment 1

1 files changed, 17 insertions, 0 deletions

diff --git a/lib/sigtrap.rb b/lib/sigtrap.rb
new file mode 100644
index 0000000..3d80121
--- /dev/null
+++ b/lib/sigtrap.rb
@@ -0,0 +1,17 @@
+#!/usr/bin/env ruby
+
+pid = fork do
+  Signal.trap("USR1") do
+    puts "done"
+    exit 0
+  end
+
+  loop do
+    print "."
+    sleep 1
+  end
+end
+
+Process.detach(pid)
+sleep 5
+Process.kill("USR1", pid)