/*
* Copyright (c) 2020, Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 2020 SAP SE. 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 "memory/metaspace/metachunkList.hpp"
#include "memory/metaspace/metaspaceCommon.hpp"
#include "utilities/debug.hpp"
#include "utilities/globalDefinitions.hpp"
#include "utilities/ostream.hpp"
namespace metaspace {
#ifdef ASSERT
void MetachunkList::verify_does_not_contain(const Metachunk* c) const {
SOMETIMES(assert(contains(c) == false, "List contains this chunk.");)
}
bool MetachunkList::contains(const Metachunk* c) const {
for (Metachunk* c2 = _first; c2 != NULL; c2 = c2->next()) {
if (c == c2) {
return true;
}
}
return false;
}
void MetachunkList::verify() const {
int num = 0;
const Metachunk* last_c = NULL;
for (const Metachunk* c = _first; c != NULL; c = c->next()) {
num++;
assert(c->prev() != c && c->next() != c, "circularity");
assert(c->prev() == last_c,
"Broken link to predecessor. Chunk " METACHUNK_FULL_FORMAT ".",
METACHUNK_FULL_FORMAT_ARGS(c));
c->verify();
last_c = c;
}
_num_chunks.check(num);
}
#endif // ASSERT
size_t MetachunkList::calc_committed_word_size() const {
if (_first != NULL && _first->is_dead()) {
// list used for chunk header pool; dead chunks have no size.
return 0;
}
size_t s = 0;
for (Metachunk* c = _first; c != NULL; c = c->next()) {
assert(c->is_dead() == false, "Sanity");
s += c->committed_words();
}
return s;
}
size_t MetachunkList::calc_word_size() const {
if (_first != NULL && _first->is_dead()) {
// list used for chunk header pool; dead chunks have no size.
return 0;
}
size_t s = 0;
for (Metachunk* c = _first; c != NULL; c = c->next()) {
assert(c->is_dead() == false, "Sanity");
s += c->committed_words();
}
return s;
}
void MetachunkList::print_on(outputStream* st) const {
if (_num_chunks.get() > 0) {
for (const Metachunk* c = _first; c != NULL; c = c->next()) {
st->print(" - <");
c->print_on(st);
st->print(">");
}
st->print(" - total : %d chunks.", _num_chunks.get());
} else {
st->print("empty");
}
}
} // namespace metaspace
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