close client socket after closing response body

Response bodies may capture the block passed to each
and save it for body.close, so don't close the socket
before we have a chance to call body.close

(cherry picked from commit b72a86f66c722d56a6d77ed1d2779ace6ad103ed)

Conflicts:

	lib/unicorn/http_server.rb
	test/unit/test_response.rb

1 files changed, 11 insertions, 0 deletions

diff --git a/t/write-on-close.ru b/t/write-on-close.ru
new file mode 100644
index 0000000..54a2f2e
--- /dev/null
+++ b/t/write-on-close.ru
@@ -0,0 +1,11 @@
+class WriteOnClose
+  def each(&block)
+    @callback = block
+  end
+
+  def close
+    @callback.call "7\r\nGoodbye\r\n0\r\n\r\n"
+  end
+end
+use Rack::ContentType, "text/plain"
+run(lambda { |_| [ 200, [%w(Transfer-Encoding chunked)], WriteOnClose.new ] })