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Datei: vmStructs_z.cpp Sprache: C

/*
* Copyright (c) 2020, 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.
*/

#include "precompiled.hpp"
#include "gc/shared/concurrentGCBreakpoints.hpp"
#include "gc/z/zBreakpoint.hpp"
#include "runtime/mutexLocker.hpp"
#include "utilities/debug.hpp"

bool ZBreakpoint::_start_gc = false;

void ZBreakpoint::start_gc() {
  MonitorLocker ml(ConcurrentGCBreakpoints::monitor());
  assert(ConcurrentGCBreakpoints::is_controlled(), "Invalid state");
  assert(!_start_gc, "Invalid state");
  _start_gc = true;
  ml.notify_all();
}

void ZBreakpoint::at_before_gc() {
  MonitorLocker ml(ConcurrentGCBreakpoints::monitor(), Mutex::_no_safepoint_check_flag);
  while (ConcurrentGCBreakpoints::is_controlled() && !_start_gc) {
    ml.wait();
  }
  _start_gc = false;
  ConcurrentGCBreakpoints::notify_idle_to_active();
}

void ZBreakpoint::at_after_gc() {
  ConcurrentGCBreakpoints::notify_active_to_idle();
}

void ZBreakpoint::at_after_marking_started() {
  ConcurrentGCBreakpoints::at("AFTER MARKING STARTED");
}

void ZBreakpoint::at_before_marking_completed() {
  ConcurrentGCBreakpoints::at("BEFORE MARKING COMPLETED");
}

void ZBreakpoint::at_after_reference_processing_started() {
  ConcurrentGCBreakpoints::at("AFTER CONCURRENT REFERENCE PROCESSING STARTED");
}

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