From 249fe0e74252af65c3e2e47a5e9e27eb839ad7c0 Mon Sep 17 00:00:00 2001
From: kosaki <kosaki@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
Date: Wed, 4 May 2011 01:07:03 +0000
Subject: * thread.c (rb_wait_for_single_fd): new. poll(2) based backend for
 rb_wait_for_single_fd().   Now only Linux uses it.

The patch was written by Eric Wong. [Ruby 1.9 - Feature #4531]



git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@31420 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
---
 include/ruby/io.h | 14 +++++++++++---
 1 file changed, 11 insertions(+), 3 deletions(-)

(limited to 'include/ruby/io.h')

diff --git a/include/ruby/io.h b/include/ruby/io.h
index bf1b9f8b37..cfdfaf1fb7 100644
--- a/include/ruby/io.h
+++ b/include/ruby/io.h
@@ -27,9 +27,17 @@ extern "C" {
 #include <stdio_ext.h>
 #endif
 
-#define RB_WAITFD_IN  0x001
-#define RB_WAITFD_PRI 0x002
-#define RB_WAITFD_OUT 0x004
+#include "ruby/config.h"
+#if defined(HAVE_POLL)
+#  include <poll.h>
+#  define RB_WAITFD_IN  POLLIN
+#  define RB_WAITFD_PRI POLLPRI
+#  define RB_WAITFD_OUT POLLOUT
+#else
+#  define RB_WAITFD_IN  0x001
+#  define RB_WAITFD_PRI 0x002
+#  define RB_WAITFD_OUT 0x004
+#endif
 
 #if defined __GNUC__ && __GNUC__ >= 4
 #pragma GCC visibility push(default)
-- 
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