1 files changed, 15 insertions, 0 deletions
diff --git a/lib/rainbows/fiber/coolio/heartbeat.rb b/lib/rainbows/fiber/coolio/heartbeat.rb
new file mode 100644
index 0000000..f48f7ef
--- /dev/null
+++ b/lib/rainbows/fiber/coolio/heartbeat.rb
@@ -0,0 +1,15 @@
+# -*- encoding: binary -*-
+# :enddoc:
+class Rainbows::Fiber::Coolio::Heartbeat < Coolio::TimerWatcher
+  G = Rainbows::G
+
+  # ZZ gets populated by read_expire in rainbows/fiber/io/methods
+  ZZ = Rainbows::Fiber::ZZ
+  def on_timer
+    exit if (! G.tick && G.cur <= 0)
+    now = Time.now
+    fibs = []
+    ZZ.delete_if { |fib, time| now >= time ? fibs << fib : ! fib.alive? }
+    fibs.each { |fib| fib.resume if fib.alive? }
+  end
+end