simplify sd_listen_fds emulation

Remove unnecessary anonymous procs and conditionals to save some
bytecode memory   Also, no valid PID can be zero, as kill(2)
treats zero specially.

1 files changed, 3 insertions, 3 deletions

diff --git a/lib/yahns/server.rb b/lib/yahns/server.rb
index 4501d86..2db8baf 100644
--- a/lib/yahns/server.rb
+++ b/lib/yahns/server.rb
@@ -316,14 +316,14 @@ class Yahns::Server # :nodoc:
 
     # emulate sd_listen_fds() for systemd
     sd_pid, sd_fds = ENV.values_at('LISTEN_PID', 'LISTEN_FDS')
-    if sd_pid && sd_pid.to_i == $$
+    if sd_pid.to_i == $$
       # 3 = SD_LISTEN_FDS_START
-      inherited.concat((3...(3 + sd_fds.to_i)).map { |fd| Socket.for_fd(fd) })
+      inherited.concat((3...(3 + sd_fds.to_i)).to_a)
     end
     # to ease debugging, we will not unset LISTEN_PID and LISTEN_FDS
 
     inherited.map! do |fd|
-      io = String === fd ? Socket.for_fd(fd.to_i) : fd
+      io = Socket.for_fd(fd.to_i)
       opts = sock_opts(io)
       io = server_cast(io, opts)
       set_server_sockopt(io, opts)