Cleanup: Re-organise source dir

[userspace-rcu.git] / src / compat-getcpu.h

diff --git a/src/compat-getcpu.h b/src/compat-getcpu.h
new file mode 100644 (file)
index 0000000..3c1899b
--- /dev/null
+++ b/src/compat-getcpu.h
@@ -0,0 +1,49 @@
+#ifndef _COMPAT_GETCPU_H
+#define _COMPAT_GETCPU_H
+
+/*
+ * compat-getcpu.h
+ *
+ * Copyright (c) 2015 Michael Jeanson <mjeanson@efficios.com>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#if defined(HAVE_SCHED_GETCPU)
+#include <sched.h>
+
+static inline
+int urcu_sched_getcpu(void)
+{
+       return sched_getcpu();
+}
+#elif defined(HAVE_GETCPUID)
+#include <sys/processor.h>
+
+static inline
+int urcu_sched_getcpu(void)
+{
+       return (int) getcpuid();
+}
+#else
+
+static inline
+int urcu_sched_getcpu(void)
+{
+        return -1;
+}
+#endif
+
+#endif /* _COMPAT_GETCPU_H */