[wing] Add wing_get_n_processors

[Ignacio Casal Quinteiro <icq src gnome org>]

commit ba4a7edf5fc23bbcec6325b7131d208bff9830b1
Author: Ignacio Casal Quinteiro <qignacio amazon com>
Date:   Wed Mar 29 11:16:02 2017 +0200

    Add wing_get_n_processors

 wing/wingutils.c |   12 ++++++++++++
 wing/wingutils.h |    3 +++
 2 files changed, 15 insertions(+), 0 deletions(-)
---
diff --git a/wing/wingutils.c b/wing/wingutils.c
index 17d8155..8700ed7 100644
--- a/wing/wingutils.c
+++ b/wing/wingutils.c
@@ -155,3 +155,15 @@ wing_get_process_times (gint64 *current_user_time,
 
   return TRUE;
 }
+
+guint
+wing_get_n_processors (void)
+{
+  int n;
+  SYSTEM_INFO sysinfo;
+
+  GetSystemInfo (&sysinfo);
+  n = sysinfo.dwNumberOfProcessors;
+
+  return n > 1 ? (guint)n : 1;
+}
diff --git a/wing/wingutils.h b/wing/wingutils.h
index 4f27050..a25b207 100644
--- a/wing/wingutils.h
+++ b/wing/wingutils.h
@@ -44,6 +44,9 @@ WING_AVAILABLE_IN_ALL
 gboolean     wing_get_process_times    (gint64 *current_user_time,
                                         gint64 *current_system_time);
 
+WING_AVAILABLE_IN_ALL
+guint        wing_get_n_processors     (void);
+
 G_END_DECLS
 
 #endif /* WING_UTILS_H */