quiet possible IOError from SIGUSR1 (reopen logs)

It's possible for a SIGUSR1 signal to be received in the
worker immediately before calling IO.select.  In that case,
do not clutter logging with IOError and just process the
reopen log request.

1 files changed, 1 insertions, 0 deletions

diff --git a/lib/unicorn/http_server.rb b/lib/unicorn/http_server.rb
index c78b094..6e90564 100644
--- a/lib/unicorn/http_server.rb
+++ b/lib/unicorn/http_server.rb
@@ -625,6 +625,7 @@ class Unicorn::HttpServer
     rescue Errno::EBADF
       nr < 0 or return
     rescue => e
+      redo if nr < 0 && IOError === e
       Unicorn.log_error(@logger, "listen loop error", e) if worker
     end while worker
   end