/* * Copyright (c) 2018, 2021, 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.
*/
if (is_reference_type(type)) {
assert((decorators & (IN_HEAP | IN_NATIVE)) != 0, "Where is reference?"); // Barrier needed even when IN_NATIVE, to allow concurrent scanning. returntrue;
}
// Barrier not needed returnfalse;
}
void ZBarrierSet::on_thread_create(Thread* thread) { // Create thread local data
ZThreadLocalData::create(thread);
}
void ZBarrierSet::on_thread_destroy(Thread* thread) { // Destroy thread local data
ZThreadLocalData::destroy(thread);
}
void ZBarrierSet::on_thread_attach(Thread* thread) { // Set thread local address bad mask
ZThreadLocalData::set_address_bad_mask(thread, ZAddressBadMask); if (thread->is_Java_thread()) {
JavaThread* const jt = JavaThread::cast(thread);
StackWatermark* const watermark = new ZStackWatermark(jt);
StackWatermarkSet::add_watermark(jt, watermark);
}
}
void ZBarrierSet::on_thread_detach(Thread* thread) { // Flush and free any remaining mark stacks
ZHeap::heap()->mark_flush_and_free(thread);
}
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