epoll: allow :CLOEXEC instead of the long constant

The long constant name conveys no additional info.  Since
epoll_create1 is rarely called, and a cache lookup for cold
code is wasfeful

3 files changed, 9 insertions, 2 deletions

diff --git a/ext/sleepy_penguin/epoll.c b/ext/sleepy_penguin/epoll.c
index 423ed69..120af0c 100644
--- a/ext/sleepy_penguin/epoll.c
+++ b/ext/sleepy_penguin/epoll.c
@@ -82,7 +82,7 @@ static struct ep_per_thread *ept_get(VALUE self, int maxevents)
 static VALUE s_new(VALUE klass, VALUE _flags)
 {
         int default_flags = RB_SP_CLOEXEC(EPOLL_CLOEXEC);
-        int flags = rb_sp_get_flags(klass, _flags, default_flags);
+        int flags = rb_sp_get_flags(cEpoll, _flags, default_flags);
         int fd = epoll_create1(flags);
         VALUE rv;
 
diff --git a/test/test_epoll.rb b/test/test_epoll.rb
index 61b6e8c..48dd0ad 100644
--- a/test/test_epoll.rb
+++ b/test/test_epoll.rb
@@ -343,6 +343,13 @@ class TestEpoll < Testcase
     @ep.close
     io = Epoll.new(Epoll::CLOEXEC).to_io
     assert((io.fcntl(Fcntl::F_GETFD) & Fcntl::FD_CLOEXEC) == Fcntl::FD_CLOEXEC)
+    io.close
+
+    # prettier, slower, but more memory efficient due to lack of caching
+    # due to the constant cache:
+    io = Epoll.new(:CLOEXEC).to_io
+
+    assert((io.fcntl(Fcntl::F_GETFD) & Fcntl::FD_CLOEXEC) == Fcntl::FD_CLOEXEC)
   end
 
   def test_new
diff --git a/test/test_epoll_io.rb b/test/test_epoll_io.rb
index 56a3808..5452de1 100644
--- a/test/test_epoll_io.rb
+++ b/test/test_epoll_io.rb
@@ -23,7 +23,7 @@ class TestEpollIO < Testcase
 
   class EpSub < Epoll::IO
     def self.new
-      super(SleepyPenguin::Epoll::CLOEXEC)
+      super(:CLOEXEC)
     end
   end