view src/hotspot/share/gc/z/zCPU.inline.hpp @ 56674:662d9e1e2a60

8232239: ZGC: Inline ZCPU::count() and ZCPU:id() Reviewed-by: tschatzl
author pliden
date Mon, 21 Oct 2019 09:58:32 +0200
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/*
 * Copyright (c) 2019, Oracle and/or its affiliates. All rights reserved.
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This code is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 only, as
 * published by the Free Software Foundation.
 *
 * This code 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 General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
 * You should have received a copy of the GNU General Public License version
 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
 * or visit www.oracle.com if you need additional information or have any
 * questions.
 */

#ifndef SHARE_GC_Z_ZCPU_INLINE_HPP
#define SHARE_GC_Z_ZCPU_INLINE_HPP

#include "gc/z/zCPU.hpp"
#include "runtime/os.hpp"
#include "utilities/debug.hpp"

inline uint32_t ZCPU::count() {
  return os::processor_count();
}

inline uint32_t ZCPU::id() {
  assert(_affinity != NULL, "Not initialized");

  // Fast path
  if (_affinity[_cpu]._thread == _self) {
    return _cpu;
  }

  // Slow path
  return id_slow();
}

#endif // SHARE_GC_Z_ZCPU_INLINE_HPP