mirror of
https://github.com/openjdk/jdk.git
synced 2026-02-08 17:38:38 +00:00
79 lines
2.5 KiB
C++
79 lines
2.5 KiB
C++
/*
|
|
* Copyright (c) 1997, 2017, 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 "runtime/safepointVerifiers.hpp"
|
|
#include "gc/shared/collectedHeap.hpp"
|
|
#include "memory/universe.hpp"
|
|
#include "utilities/debug.hpp"
|
|
|
|
// Implementation of NoGCVerifier
|
|
|
|
#ifdef ASSERT
|
|
|
|
NoGCVerifier::NoGCVerifier(bool verifygc) {
|
|
_verifygc = verifygc;
|
|
if (_verifygc) {
|
|
CollectedHeap* h = Universe::heap();
|
|
assert(!h->is_gc_active(), "GC active during NoGCVerifier");
|
|
_old_invocations = h->total_collections();
|
|
}
|
|
}
|
|
|
|
|
|
NoGCVerifier::~NoGCVerifier() {
|
|
if (_verifygc) {
|
|
CollectedHeap* h = Universe::heap();
|
|
assert(!h->is_gc_active(), "GC active during NoGCVerifier");
|
|
if (_old_invocations != h->total_collections()) {
|
|
fatal("collection in a NoGCVerifier secured function");
|
|
}
|
|
}
|
|
}
|
|
|
|
PauseNoGCVerifier::PauseNoGCVerifier(NoGCVerifier * ngcv) {
|
|
_ngcv = ngcv;
|
|
if (_ngcv->_verifygc) {
|
|
// if we were verifying, then make sure that nothing is
|
|
// wrong before we "pause" verification
|
|
CollectedHeap* h = Universe::heap();
|
|
assert(!h->is_gc_active(), "GC active during NoGCVerifier");
|
|
if (_ngcv->_old_invocations != h->total_collections()) {
|
|
fatal("collection in a NoGCVerifier secured function");
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
PauseNoGCVerifier::~PauseNoGCVerifier() {
|
|
if (_ngcv->_verifygc) {
|
|
// if we were verifying before, then reenable verification
|
|
CollectedHeap* h = Universe::heap();
|
|
assert(!h->is_gc_active(), "GC active during NoGCVerifier");
|
|
_ngcv->_old_invocations = h->total_collections();
|
|
}
|
|
}
|
|
|
|
#endif
|