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8292758: put support for UNSIGNED5 format into its own header file
Reviewed-by: dlong, coleenp
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John R Rose
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Sep 8, 2022
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/* | ||
* Copyright (c) 2022, 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. | ||
* | ||
*/ | ||
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#include "precompiled.hpp" | ||
#include "memory/allocation.hpp" | ||
#include "utilities/unsigned5.hpp" | ||
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// Most of UNSIGNED5 is in the header file. | ||
// Let's put a few debug functions out-of-line here. | ||
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// For the record, UNSIGNED5 was defined around 2001 and was first | ||
// published in the initial Pack200 spec. See: | ||
// https://docs.oracle.com/en/java/javase/11/docs/specs/pack-spec.html | ||
// in Section 6.1, "Encoding of Small Whole Numbers". | ||
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PRAGMA_DIAG_PUSH | ||
PRAGMA_FORMAT_NONLITERAL_IGNORED | ||
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// For debugging, even in product builds (see debug.cpp). | ||
template<typename ARR, typename OFF, typename GET> | ||
void UNSIGNED5::Reader<ARR,OFF,GET>:: | ||
print_on(outputStream* st, int count, | ||
const char* left, // "U5: [" | ||
const char* right // "] (values=%d/length=%d)\n" | ||
) { | ||
if (left == NULL) left = "U5: ["; | ||
if (right == NULL) right = "] (values=%d/length=%d)\n"; | ||
int printed = 0; | ||
st->print("%s", left); | ||
for (;;) { | ||
if (count >= 0 && printed >= count) break; | ||
if (!has_next()) { | ||
if ((_limit == 0 || _position < _limit) && _array[_position] == 0) { | ||
st->print(" null"); | ||
++_position; // skip null byte | ||
++printed; | ||
if (_limit != 0) continue; // keep going to explicit limit | ||
} | ||
break; | ||
} | ||
u4 value = next_uint(); | ||
if (printed == 0) | ||
st->print("%d", value); | ||
else | ||
st->print(" %d", value); | ||
++printed; | ||
} | ||
st->print(right, | ||
// these arguments may or may not be used in the format string: | ||
printed, | ||
(int)_position); | ||
} | ||
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PRAGMA_DIAG_POP | ||
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// Explicit instantiation for supported types. | ||
template void UNSIGNED5::Reader<char*,int>:: | ||
print_on(outputStream* st, int count, const char* left, const char* right); | ||
template void UNSIGNED5::Reader<u1*,int>:: | ||
print_on(outputStream* st, int count, const char* left, const char* right); | ||
template void UNSIGNED5::Reader<address,size_t>:: | ||
print_on(outputStream* st, int count, const char* left, const char* right); |
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