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1 files changed, 29 insertions, 0 deletions

diff --git a/lib/yahns/sigevent_pipe.rb b/lib/yahns/sigevent_pipe.rb
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+++ b/lib/yahns/sigevent_pipe.rb
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+# -*- encoding: binary -*-
+# Copyright (C) 2013, Eric Wong <normalperson@yhbt.net> and all contributors
+# License: GPLv3 or later (https://www.gnu.org/licenses/gpl-3.0.txt)
+class Yahns::Sigevent # :nodoc:
+  attr_reader :to_io
+  def initialize
+    @to_io, @wr = Kgio::Pipe.new
+  end
+
+  def kgio_wait_readable
+    @to_io.kgio_wait_readable
+  end
+
+  def sev_signal
+    @wr.kgio_write(".")
+  end
+
+  def yahns_step
+    # 11 byte strings -> no malloc on YARV
+    while String === @to_io.kgio_tryread(11)
+    end
+    :wait_readable
+  end
+
+  def close
+    @to_io.close
+    @wr.close
+  end
+end