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src/hotspot/share/gc/shenandoah/shenandoahThreadLocalData.hpp

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rev 53944 : Shenandoah GC may initialize thread's gclab twice
   1 /*
   2  * Copyright (c) 2018, Red Hat, Inc. All rights reserved.
   3  *
   4  * This code is free software; you can redistribute it and/or modify it
   5  * under the terms of the GNU General Public License version 2 only, as
   6  * published by the Free Software Foundation.
   7  *
   8  * This code is distributed in the hope that it will be useful, but WITHOUT
   9  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  10  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  11  * version 2 for more details (a copy is included in the LICENSE file that
  12  * accompanied this code).
  13  *
  14  * You should have received a copy of the GNU General Public License version
  15  * 2 along with this work; if not, write to the Free Software Foundation,
  16  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  17  *
  18  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  19  * or visit www.oracle.com if you need additional information or have any
  20  * questions.
  21  *
  22  */


 105   static void set_worker_id(Thread* thread, uint id) {
 106     assert(thread->is_Worker_thread(), "Must be a worker thread");
 107     data(thread)->_worker_id = id;
 108   }
 109 
 110   static uint worker_id(Thread* thread) {
 111     assert(thread->is_Worker_thread(), "Must be a worker thread");
 112     return data(thread)->_worker_id;
 113   }
 114 
 115   static void set_force_satb_flush(Thread* thread, bool v) {
 116     data(thread)->_force_satb_flush = v;
 117   }
 118 
 119   static bool is_force_satb_flush(Thread* thread) {
 120     return data(thread)->_force_satb_flush;
 121   }
 122 
 123   static void initialize_gclab(Thread* thread) {
 124     assert (thread->is_Java_thread() || thread->is_Worker_thread(), "Only Java and GC worker threads are allowed to get GCLABs");

 125     data(thread)->_gclab = new PLAB(PLAB::min_size());
 126     data(thread)->_gclab_size = 0;
 127   }
 128 
 129   static PLAB* gclab(Thread* thread) {
 130     return data(thread)->_gclab;
 131   }
 132 
 133   static size_t gclab_size(Thread* thread) {
 134     return data(thread)->_gclab_size;
 135   }
 136 
 137   static void set_gclab_size(Thread* thread, size_t v) {
 138     data(thread)->_gclab_size = v;
 139   }
 140 
 141 #ifdef ASSERT
 142   static void set_evac_allowed(Thread* thread, bool evac_allowed) {
 143     if (evac_allowed) {
 144       data(thread)->_oom_during_evac |= 2;


   1 /*
   2  * Copyright (c) 2018, 2019, Red Hat, Inc. All rights reserved.
   3  *
   4  * This code is free software; you can redistribute it and/or modify it
   5  * under the terms of the GNU General Public License version 2 only, as
   6  * published by the Free Software Foundation.
   7  *
   8  * This code is distributed in the hope that it will be useful, but WITHOUT
   9  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  10  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  11  * version 2 for more details (a copy is included in the LICENSE file that
  12  * accompanied this code).
  13  *
  14  * You should have received a copy of the GNU General Public License version
  15  * 2 along with this work; if not, write to the Free Software Foundation,
  16  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  17  *
  18  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  19  * or visit www.oracle.com if you need additional information or have any
  20  * questions.
  21  *
  22  */


 105   static void set_worker_id(Thread* thread, uint id) {
 106     assert(thread->is_Worker_thread(), "Must be a worker thread");
 107     data(thread)->_worker_id = id;
 108   }
 109 
 110   static uint worker_id(Thread* thread) {
 111     assert(thread->is_Worker_thread(), "Must be a worker thread");
 112     return data(thread)->_worker_id;
 113   }
 114 
 115   static void set_force_satb_flush(Thread* thread, bool v) {
 116     data(thread)->_force_satb_flush = v;
 117   }
 118 
 119   static bool is_force_satb_flush(Thread* thread) {
 120     return data(thread)->_force_satb_flush;
 121   }
 122 
 123   static void initialize_gclab(Thread* thread) {
 124     assert (thread->is_Java_thread() || thread->is_Worker_thread(), "Only Java and GC worker threads are allowed to get GCLABs");
 125     assert(data(thread)->_gclab == NULL, "Only initialize once");
 126     data(thread)->_gclab = new PLAB(PLAB::min_size());
 127     data(thread)->_gclab_size = 0;
 128   }
 129 
 130   static PLAB* gclab(Thread* thread) {
 131     return data(thread)->_gclab;
 132   }
 133 
 134   static size_t gclab_size(Thread* thread) {
 135     return data(thread)->_gclab_size;
 136   }
 137 
 138   static void set_gclab_size(Thread* thread, size_t v) {
 139     data(thread)->_gclab_size = v;
 140   }
 141 
 142 #ifdef ASSERT
 143   static void set_evac_allowed(Thread* thread, bool evac_allowed) {
 144     if (evac_allowed) {
 145       data(thread)->_oom_during_evac |= 2;


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