/* * Copyright (c) 2018, 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. *
*/
void MarkBitMap::do_clear(MemRegion mr, bool large) {
MemRegion intersection = mr.intersection(_covered);
assert(!intersection.is_empty(), "Given range from " PTR_FORMAT " to " PTR_FORMAT " is completely outside the heap",
p2i(mr.start()), p2i(mr.end())); // convert address range into offset range
size_t beg = addr_to_offset(intersection.start());
size_t end = addr_to_offset(intersection.end()); if (large) {
_bm.clear_large_range(beg, end);
} else {
_bm.clear_range(beg, end);
}
}
#ifdef ASSERT void MarkBitMap::check_mark(HeapWord* addr) {
assert(Universe::heap()->is_in(addr), "Trying to access bitmap " PTR_FORMAT " for address " PTR_FORMAT " not in the heap.",
p2i(this), p2i(addr));
} #endif
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