From 56fa18c9d3fc8e817c7bc49cca777b051a8c5ff5 Mon Sep 17 00:00:00 2001
From: usa <usa@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
Date: Thu, 2 Oct 2014 09:42:23 +0000
Subject: * ext/etc/etc.c (etc_nprocessors): Windows support.   see [Feature
 #10267]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@47764 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
---
 ext/etc/etc.c | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

(limited to 'ext/etc')

diff --git a/ext/etc/etc.c b/ext/etc/etc.c
index 2546560713..02f8091b4c 100644
--- a/ext/etc/etc.c
+++ b/ext/etc/etc.c
@@ -891,7 +891,7 @@ io_pathconf(VALUE io, VALUE arg)
 #define io_pathconf rb_f_notimplement
 #endif
 
-#if defined(HAVE_SYSCONF) && defined(_SC_NPROCESSORS_ONLN)
+#if (defined(HAVE_SYSCONF) && defined(_SC_NPROCESSORS_ONLN)) || defined(_WIN32)
 /*
  * Returns the number of online processors.
  *
@@ -912,11 +912,17 @@ etc_nprocessors(VALUE obj)
 {
     long ret;
 
+#if !defined(_WIN32)
     errno = 0;
     ret = sysconf(_SC_NPROCESSORS_ONLN);
     if (ret == -1) {
         rb_sys_fail("sysconf(_SC_NPROCESSORS_ONLN)");
     }
+#else
+    SYSTEM_INFO si;
+    GetSystemInfo(&si);
+    ret = (long)si.dwNumberOfProcessors;
+#endif
     return LONG2NUM(ret);
 }
 #else
-- 
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