rev 48162 : 8191789: migrate more Thread-SMR stuff from thread.[ch]pp -> threadSMR.[ch]pp
Reviewed-by: stefank
rev 48163 : CR round 0: dcubed - move more code into sort order, add update_smr_tlh_stats(); stefank - refactor Threads::add() and Threads::remove() to allow more ThreadsSMRSupport functions to be private, move is_a_protected_JavaThread_with_lock() to threadSMR.inline.hpp

   1 /*
   2  * Copyright (c) 2017, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.
   8  *
   9  * This code is distributed in the hope that it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  12  * version 2 for more details (a copy is included in the LICENSE file that
  13  * accompanied this code).
  14  *
  15  * You should have received a copy of the GNU General Public License version
  16  * 2 along with this work; if not, write to the Free Software Foundation,
  17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  18  *
  19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  20  * or visit www.oracle.com if you need additional information or have any
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  24 
  25 #ifndef SHARE_VM_RUNTIME_THREADSMR_INLINE_HPP
  26 #define SHARE_VM_RUNTIME_THREADSMR_INLINE_HPP
  27 
  28 #include "runtime/atomic.hpp"
  29 #include "runtime/prefetch.inline.hpp"
  30 #include "runtime/thread.inline.hpp"
  31 #include "runtime/threadSMR.hpp"
  32 
  33 // Devirtualize known thread closure types.
  34 template <class T>
  35 inline void ThreadsList::threads_do_dispatch(T *cl, JavaThread *const thread) const {
  36   cl->T::do_thread(thread);
  37 }
  38 
  39 template <>
  40 inline void ThreadsList::threads_do_dispatch<ThreadClosure>(ThreadClosure *cl, JavaThread *const thread) const {
  41   cl->do_thread(thread);
  42 }
  43 
  44 template <class T>
  45 inline void ThreadsList::threads_do(T *cl) const {
  46   const intx scan_interval = PrefetchScanIntervalInBytes;
  47   JavaThread *const *const end = _threads + _length;
  48   for (JavaThread *const *current_p = _threads; current_p != end; current_p++) {
  49     Prefetch::read((void*)current_p, scan_interval);
  50     JavaThread *const current = *current_p;
  51     threads_do_dispatch(cl, current);
  52   }
  53 }
  54 


























  55 inline ThreadsList* ThreadsListSetter::list() {
  56   ThreadsList *ret = _target->get_threads_hazard_ptr();
  57   assert(ret != NULL, "hazard ptr should be set");
  58   assert(!Thread::is_hazard_ptr_tagged(ret), "hazard ptr should be validated");
  59   return ret;
  60 }
  61 















  62 #endif // SHARE_VM_RUNTIME_THREADSMR_INLINE_HPP
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