73 lines
2 KiB
C
73 lines
2 KiB
C
/*
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* Copyright (C) 2008 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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/*
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* Verification-time map of data section items
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*/
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#ifndef LIBDEX_DEXDATAMAP_H_
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#define LIBDEX_DEXDATAMAP_H_
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#include "DexFile.h"
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struct DexDataMap {
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u4 count; /* number of items currently in the map */
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u4 max; /* maximum number of items that may be held */
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u4* offsets; /* array of item offsets */
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u2* types; /* corresponding array of item types */
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};
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/*
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* Allocate and initialize a DexDataMap. Returns NULL on failure.
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*/
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DexDataMap* dexDataMapAlloc(u4 maxCount);
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/*
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* Free a DexDataMap.
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*/
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void dexDataMapFree(DexDataMap* map);
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/*
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* Add a new element to the map. The offset must be greater than the
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* all previously added offsets.
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*/
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void dexDataMapAdd(DexDataMap* map, u4 offset, u2 type);
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/*
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* Get the type associated with the given offset. This returns -1 if
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* there is no entry for the given offset.
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*/
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int dexDataMapGet(DexDataMap* map, u4 offset);
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/*
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* Verify that there is an entry in the map, mapping the given offset to
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* the given type. This will return true if such an entry exists and
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* return false as well as log an error if not.
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*/
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bool dexDataMapVerify(DexDataMap* map, u4 offset, u2 type);
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/*
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* Like dexDataMapVerify(), but also accept a 0 offset as valid.
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*/
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DEX_INLINE bool dexDataMapVerify0Ok(DexDataMap* map, u4 offset, u2 type) {
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if (offset == 0) {
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return true;
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}
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return dexDataMapVerify(map, offset, type);
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}
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#endif // LIBDEX_DEXDATAMAP_H_
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