1/* 2 * Copyright 2009, Ingo Weinhold, ingo_weinhold@gmx.de. 3 * Distributed under the terms of the MIT License. 4 */ 5#ifndef _PACKAGE__HPKG__PRIVATE__HAIKU_PACKAGE_H_ 6#define _PACKAGE__HPKG__PRIVATE__HAIKU_PACKAGE_H_ 7 8 9#include <SupportDefs.h> 10 11#include <package/hpkg/HPKGDefs.h> 12 13 14namespace BPackageKit { 15 16namespace BHPKG { 17 18namespace BPrivate { 19 20 21// package file header 22struct hpkg_header { 23 uint32 magic; // "hpkg" 24 uint16 header_size; 25 uint16 version; 26 uint64 total_size; 27 uint16 minor_version; 28 29 // heap 30 uint16 heap_compression; 31 uint32 heap_chunk_size; 32 uint64 heap_size_compressed; 33 uint64 heap_size_uncompressed; 34 35 // package attributes section 36 uint32 attributes_length; 37 uint32 attributes_strings_length; 38 uint32 attributes_strings_count; 39 uint32 reserved1; 40 41 // TOC section 42 uint64 toc_length; 43 uint64 toc_strings_length; 44 uint64 toc_strings_count; 45}; 46 47 48// repository file header 49struct hpkg_repo_header { 50 uint32 magic; // "hpkr" 51 uint16 header_size; 52 uint16 version; 53 uint64 total_size; 54 uint16 minor_version; 55 56 // heap 57 uint16 heap_compression; 58 uint32 heap_chunk_size; 59 uint64 heap_size_compressed; 60 uint64 heap_size_uncompressed; 61 62 // repository info section 63 uint32 info_length; 64 uint32 reserved1; 65 66 // package attributes section 67 uint64 packages_length; 68 uint64 packages_strings_length; 69 uint64 packages_strings_count; 70}; 71 72 73// attribute tag arithmetics 74// (using 7 bits for id, 3 for type, 1 for hasChildren and 2 for encoding) 75static inline uint16 76compose_attribute_tag(uint16 id, uint16 type, uint16 encoding, bool hasChildren) 77{ 78 return ((encoding << 11) | (uint16(hasChildren ? 1 : 0) << 10) | (type << 7) 79 | id) 80 + 1; 81} 82 83 84static inline uint16 85attribute_tag_encoding(uint16 tag) 86{ 87 return ((tag - 1) >> 11) & 0x3; 88} 89 90 91static inline bool 92attribute_tag_has_children(uint16 tag) 93{ 94 return (((tag - 1) >> 10) & 0x1) != 0; 95} 96 97 98static inline uint16 99attribute_tag_type(uint16 tag) 100{ 101 return ((tag - 1) >> 7) & 0x7; 102} 103 104 105static inline uint16 106attribute_tag_id(uint16 tag) 107{ 108 return (tag - 1) & 0x7f; 109} 110 111 112} // namespace BPrivate 113 114} // namespace BHPKG 115 116} // namespace BPackageKit 117 118 119#endif // _PACKAGE__HPKG__PRIVATE__HAIKU_PACKAGE_H_ 120