libroot/posix/stdio: Remove unused portions.
[haiku.git] / src / apps / mail / WIndex.h
blob0752235b95956728d5062812059fcf79773dc8b4
1 /*
2 Open Tracker License
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34 #ifndef _WORD_INDEX_H
35 #define _WORD_INDEX_H
38 #include <DataIO.h>
39 #include <String.h>
42 struct WIndexHead {
43 int32 entries;
44 int32 entrySize;
45 int32 offset;
49 struct WIndexEntry {
50 int32 key;
51 int32 offset;
55 class FileEntry : public BString {
56 public:
57 FileEntry();
58 FileEntry(const char* entryStr);
59 virtual ~FileEntry();
63 class WIndex {
64 public:
65 WIndex(BPositionIO* dataFile, int32 count = 100);
66 WIndex(int32 count = 100);
67 virtual ~WIndex();
69 status_t InitIndex();
70 status_t UnflattenIndex(BPositionIO* io);
71 status_t FlattenIndex(BPositionIO* io);
73 int32 Lookup(int32 key);
75 inline WIndexEntry* ItemAt(int32 index) {
76 return (WIndexEntry*)
77 (fEntryList + (index * fEntrySize));
80 status_t AddItem(WIndexEntry* entry);
81 inline int32 CountItems() {
82 return fEntries;
84 void SortItems();
86 virtual int32 GetKey(const char* s);
87 virtual char* NormalizeWord(const char* word, char* dest);
89 status_t SetTo(BPositionIO* dataFile);
90 status_t SetTo(const char* dataPath, const char* indexPath);
91 void Unset();
93 virtual status_t BuildIndex() = 0;
95 virtual int32 FindFirst(const char* word);
96 virtual FileEntry* GetEntry(int32 index);
97 FileEntry* GetEntry(const char* word);
99 protected:
100 status_t _BlockCheck();
101 virtual size_t _GetEntrySize(WIndexEntry* entry,
102 const char* entryData);
104 int32 fEntrySize;
105 int32 fEntries;
106 int32 fMaxEntries;
107 int32 fEntriesPerBlock;
108 int32 fBlockSize;
109 int32 fBlocks;
110 bool fIsSorted;
111 uint8* fEntryList;
112 BPositionIO* fDataFile;
115 #endif // _WORD_INDEX_H