64 lines
1.7 KiB
C
64 lines
1.7 KiB
C
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/*
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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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#ifndef LIBZIPARCHIVE_ZIPARCHIVE_PRIVATE_H_
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#define LIBZIPARCHIVE_ZIPARCHIVE_PRIVATE_H_
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#include <stdint.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include <utils/FileMap.h>
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#include <ziparchive/zip_archive.h>
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struct ZipArchive {
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// open Zip archive
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const int fd;
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const bool close_file;
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// mapped central directory area
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off64_t directory_offset;
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android::FileMap directory_map;
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// number of entries in the Zip archive
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uint16_t num_entries;
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// We know how many entries are in the Zip archive, so we can have a
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// fixed-size hash table. We define a load factor of 0.75 and over
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// allocate so the maximum number entries can never be higher than
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// ((4 * UINT16_MAX) / 3 + 1) which can safely fit into a uint32_t.
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uint32_t hash_table_size;
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ZipString* hash_table;
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ZipArchive(const int fd, bool assume_ownership) :
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fd(fd),
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close_file(assume_ownership),
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directory_offset(0),
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num_entries(0),
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hash_table_size(0),
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hash_table(NULL) {}
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~ZipArchive() {
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if (close_file && fd >= 0) {
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close(fd);
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}
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free(hash_table);
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}
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};
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#endif // LIBZIPARCHIVE_ZIPARCHIVE_PRIVATE_H_
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