/* * Copyright (c) 2001, 2019, 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. *
*/
inline HeapRegion* HeapRegionManager::at_or_null(uint index) const { if (!is_available(index)) { return NULL;
}
HeapRegion* hr = _regions.get_by_index(index);
assert(hr != NULL, "All available regions must have a HeapRegion but index %u has not.", index);
assert(hr->hrm_index() == index, "sanity"); return hr;
}
inline HeapRegion* HeapRegionManager::next_region_in_humongous(HeapRegion* hr) const{
uint index = hr->hrm_index();
assert(is_available(index), "pre-condition");
assert(hr->is_humongous(), "next_region_in_humongous should only be called for a humongous region.");
index++; if (index < reserved_length() && is_available(index) && at(index)->is_continues_humongous()) { return at(index);
} else { return NULL;
}
}
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