| 1 | // =============================================================== // |
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| 2 | // // |
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| 3 | // File : adoptimize.cxx // |
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| 4 | // Purpose : // |
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| 5 | // // |
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| 6 | // Institute of Microbiology (Technical University Munich) // |
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| 7 | // http://www.arb-home.de/ // |
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| 8 | // // |
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| 9 | // =============================================================== // |
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| 10 | |
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| 11 | #include <climits> |
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| 12 | #include <netinet/in.h> |
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| 13 | |
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| 14 | #include <arb_file.h> |
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| 15 | #include <arb_diff.h> |
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| 16 | |
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| 17 | #include <arbdbt.h> |
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| 18 | |
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| 19 | #include "gb_key.h" |
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| 20 | #include "gb_compress.h" |
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| 21 | #include "gb_dict.h" |
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| 22 | |
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| 23 | #include "arb_progress.h" |
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| 24 | |
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| 25 | #if defined(DEBUG) |
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| 26 | // #define TEST_DICT |
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| 27 | #endif // DEBUG |
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| 28 | |
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| 29 | typedef unsigned char unsigned_char; |
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| 30 | typedef unsigned char *u_str; |
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| 31 | typedef const unsigned char *cu_str; |
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| 32 | |
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| 33 | static int gbdByKey_cnt; |
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| 34 | struct O_gbdByKey { // one for each diff. keyQuark |
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| 35 | int cnt; |
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| 36 | GBDATA **gbds; // gbdoff |
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| 37 | }; |
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| 38 | |
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| 39 | struct FullDictTree; |
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| 40 | struct SingleDictTree; |
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| 41 | |
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| 42 | union DictTree { |
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| 43 | FullDictTree *full; |
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| 44 | SingleDictTree *single; |
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| 45 | void *exists; |
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| 46 | |
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| 47 | }; |
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| 48 | |
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| 49 | enum DictNodeType { SINGLE_NODE, FULL_NODE }; |
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| 50 | |
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| 51 | struct FullDictTree { |
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| 52 | DictNodeType typ; // always FULL_NODE |
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| 53 | int usedSons; |
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| 54 | int count[256]; |
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| 55 | DictTree son[256]; // index == character |
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| 56 | }; |
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| 57 | |
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| 58 | struct SingleDictTree { |
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| 59 | DictNodeType typ; // always SINGLE_NODE |
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| 60 | unsigned_char ch; // the character |
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| 61 | int count; // no of occurrences of this branch |
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| 62 | DictTree son; |
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| 63 | DictTree brother; |
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| 64 | |
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| 65 | }; |
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| 66 | |
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| 67 | // ************************************************** |
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| 68 | |
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| 69 | #define COMPRESSIBLE(type) ((type) >= GB_BYTES && (type)<=GB_STRING) |
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| 70 | #define DICT_MEM_WEIGHT 4 |
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| 71 | |
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| 72 | #define WORD_HELPFUL(wordlen, occurrences) ((long)((occurrences)*3 + DICT_MEM_WEIGHT*(2*sizeof(GB_NINT)+(wordlen))) \ |
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| 73 | < \ |
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| 74 | (long)((occurrences)*(wordlen))) |
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| 75 | /* (occurrences)*4 compressed size |
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| 76 | * 2*sizeof(GB_NINT)+(wordlen) size in dictionary |
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| 77 | * (occurrences)*(wordlen) uncompressed size |
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| 78 | */ |
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| 79 | |
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| 80 | // ************************************************** |
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| 81 | |
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| 82 | #define MIN_WORD_LEN 8 // minimum length of words in dictionary |
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| 83 | #define MAX_WORD_LEN 50 // maximum length of words in dictionary |
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| 84 | #define MAX_BROTHERS 10 /* maximum no of brothers linked with SingleDictTree |
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| 85 | * above we use FullDictTree */ |
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| 86 | #define MAX_DIFFER 2 /* percentage of difference (of occurrences of strings) below which two |
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| 87 | * consecutive parts are treated as EQUAL # of occurrences */ |
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| 88 | #define INCR_DIFFER 1 // the above percentage is incremented from 0 to MAX_DIFFER by INCR_DIFFER per step |
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| 89 | |
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| 90 | #define DICT_STRING_INCR 1024 // dictionary string will be incremented by this size |
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| 91 | |
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| 92 | // ******************* Tool functions ****************** |
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| 93 | |
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| 94 | inline cu_str get_data_n_size(GBDATA *gbd, size_t *size) { |
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| 95 | GB_CSTR data; |
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| 96 | *size = 0; |
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| 97 | |
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| 98 | switch (gbd->type()) { |
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| 99 | case GB_STRING: data = GB_read_char_pntr(gbd); break; |
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| 100 | case GB_BYTES: data = GB_read_bytes_pntr(gbd); break; |
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| 101 | case GB_INTS: data = (char*)GB_read_ints_pntr(gbd); break; |
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| 102 | case GB_FLOATS: data = (char*)GB_read_floats_pntr(gbd); break; |
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| 103 | default: |
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| 104 | data = NULp; |
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| 105 | gb_assert(0); |
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| 106 | break; |
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| 107 | } |
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| 108 | |
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| 109 | if (data) *size = gbd->as_entry()->uncompressed_size(); |
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| 110 | return (cu_str)data; |
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| 111 | } |
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| 112 | |
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| 113 | static inline long min(long a, long b) { |
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| 114 | return a<b ? a : b; |
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| 115 | } |
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| 116 | |
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| 117 | // ************************************************** |
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| 118 | |
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| 119 | static void g_b_opti_scanGbdByKey(GB_MAIN_TYPE *Main, GBDATA *gbd, O_gbdByKey *gbk) { |
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| 120 | if (gbd->is_container()) { |
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| 121 | GBCONTAINER *gbc = gbd->as_container(); |
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| 122 | for (int idx=0; idx < gbc->d.nheader; idx++) { |
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| 123 | GBDATA *gbd2 = GBCONTAINER_ELEM(gbc, idx); |
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| 124 | if (gbd2) g_b_opti_scanGbdByKey(Main, gbd2, gbk); |
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| 125 | } |
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| 126 | } |
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| 127 | |
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| 128 | GBQUARK quark = GB_KEY_QUARK(gbd); |
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| 129 | if (quark) { |
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| 130 | gb_assert(gbk[quark].cnt < Main->keys[quark].nref || quark==0); |
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| 131 | gb_assert(gbk[quark].gbds); |
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| 132 | |
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| 133 | gbk[quark].gbds[gbk[quark].cnt] = gbd; |
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| 134 | gbk[quark].cnt++; |
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| 135 | } |
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| 136 | } |
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| 137 | |
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| 138 | static O_gbdByKey *g_b_opti_createGbdByKey(GB_MAIN_TYPE *Main) { |
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| 139 | O_gbdByKey *gbk = ARB_calloc<O_gbdByKey>(Main->keycnt); |
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| 140 | |
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| 141 | gbdByKey_cnt = Main->keycnt; // always use gbdByKey_cnt instead of Main->keycnt cause Main->keycnt can change |
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| 142 | |
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| 143 | for (int idx=1; idx<gbdByKey_cnt; idx++) { |
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| 144 | gbk[idx].cnt = 0; |
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| 145 | |
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| 146 | gb_Key& KEY = Main->keys[idx]; |
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| 147 | if (KEY.key && KEY.nref>0) { |
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| 148 | ARB_calloc(gbk[idx].gbds, KEY.nref); |
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| 149 | } |
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| 150 | else { |
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| 151 | gbk[idx].gbds = NULp; |
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| 152 | } |
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| 153 | } |
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| 154 | |
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| 155 | gbk[0].cnt = 0; |
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| 156 | ARB_calloc(gbk[0].gbds, 1); |
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| 157 | |
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| 158 | g_b_opti_scanGbdByKey(Main, Main->gb_main(), gbk); |
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| 159 | |
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| 160 | for (int idx=0; idx<gbdByKey_cnt; idx++) { |
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| 161 | if (gbk[idx].cnt != Main->keys[idx].nref && idx) { |
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| 162 | printf("idx=%i gbk[idx].cnt=%i Main->keys[idx].nref=%li\n", // Main->keys[].nref ist falsch |
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| 163 | idx, gbk[idx].cnt, Main->keys[idx].nref); |
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| 164 | |
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| 165 | Main->keys[idx].nref = gbk[idx].cnt; |
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| 166 | } |
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| 167 | } |
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| 168 | return gbk; |
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| 169 | } |
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| 170 | |
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| 171 | static void g_b_opti_freeGbdByKey(O_gbdByKey *gbk) { |
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| 172 | for (int idx=0; idx<gbdByKey_cnt; idx++) free(gbk[idx].gbds); |
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| 173 | free(gbk); |
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| 174 | } |
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| 175 | |
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| 176 | // ******************* Convert old compression style to new style ****************** |
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| 177 | |
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| 178 | static GB_ERROR gb_convert_compression(GBDATA *gbd) { |
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| 179 | GB_ERROR error = NULp; |
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| 180 | |
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| 181 | if (gbd->is_container()) { |
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| 182 | for (GBDATA *gb_child = GB_child(gbd); gb_child; gb_child = GB_nextChild(gb_child)) { |
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| 183 | if (gb_child->flags.compressed_data || gb_child->is_container()) { |
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| 184 | error = gb_convert_compression(gb_child); |
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| 185 | if (error) break; |
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| 186 | } |
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| 187 | } |
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| 188 | } |
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| 189 | else { |
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| 190 | char *str = NULp; |
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| 191 | GBENTRY *gbe = gbd->as_entry(); |
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| 192 | long elems = gbe->size(); |
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| 193 | size_t data_size = gbe->uncompressed_size(); |
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| 194 | size_t new_size = -1; |
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| 195 | int expectData = 1; |
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| 196 | |
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| 197 | switch (gbd->type()) { |
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| 198 | case GB_STRING: |
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| 199 | case GB_OBSOLETE: |
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| 200 | case GB_BYTES: |
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| 201 | str = gb_uncompress_bytes(gbe->data(), data_size, &new_size); |
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| 202 | if (str) { |
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| 203 | gb_assert(new_size == data_size); |
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| 204 | str = GB_memdup(str, data_size); |
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| 205 | } |
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| 206 | break; |
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| 207 | |
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| 208 | case GB_INTS: |
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| 209 | case GB_FLOATS: |
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| 210 | str = gb_uncompress_longs_old(gbe->data(), elems, &new_size); |
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| 211 | if (str) { |
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| 212 | gb_assert(new_size == data_size); |
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| 213 | str = GB_memdup(str, data_size); |
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| 214 | } |
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| 215 | break; |
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| 216 | |
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| 217 | default: |
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| 218 | expectData = 0; |
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| 219 | break; |
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| 220 | } |
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| 221 | |
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| 222 | if (!str) { |
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| 223 | if (expectData) { |
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| 224 | error = GBS_global_string("Can't read old data to convert compression (Reason: %s)", GB_await_error()); |
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| 225 | } |
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| 226 | } |
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| 227 | else { |
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| 228 | switch (gbd->type()) { |
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| 229 | case GB_STRING: |
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| 230 | error = GB_write_string(gbe, ""); |
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| 231 | if (!error) error = GB_write_string(gbe, str); |
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| 232 | break; |
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| 233 | |
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| 234 | case GB_OBSOLETE: |
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| 235 | error = GB_set_temporary(gbe); // exclude obsolete type from next save |
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| 236 | break; |
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| 237 | |
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| 238 | case GB_BYTES: |
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| 239 | error = GB_write_bytes(gbe, "", 0); |
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| 240 | if (!error) error = GB_write_bytes(gbe, str, data_size); |
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| 241 | break; |
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| 242 | |
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| 243 | case GB_INTS: |
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| 244 | case GB_FLOATS: |
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| 245 | error = GB_write_pntr(gbe, str, data_size, elems); |
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| 246 | break; |
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| 247 | |
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| 248 | default: |
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| 249 | gb_assert(0); |
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| 250 | break; |
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| 251 | } |
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| 252 | |
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| 253 | free(str); |
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| 254 | } |
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| 255 | } |
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| 256 | return error; |
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| 257 | } |
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| 258 | |
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| 259 | GB_ERROR gb_convert_V2_to_V3(GBDATA *gb_main) { |
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| 260 | GB_ERROR error = NULp; |
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| 261 | GBDATA *gb_system = GB_search(gb_main, GB_SYSTEM_FOLDER, GB_FIND); |
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| 262 | |
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| 263 | if (!gb_system) { |
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| 264 | GB_create_container(gb_main, GB_SYSTEM_FOLDER); |
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| 265 | if (GB_entry(gb_main, "extended_data")) { |
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| 266 | GB_warning("Converting data from old V2.0 to V2.1 Format:\n" |
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| 267 | " Please Wait (may take some time)"); |
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| 268 | } |
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| 269 | error = gb_convert_compression(gb_main); |
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| 270 | GB_disable_quicksave(gb_main, "Database converted to new format"); |
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| 271 | } |
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| 272 | return error; |
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| 273 | } |
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| 274 | |
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| 275 | |
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| 276 | // ********************* Compress by dictionary ******************** |
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| 277 | |
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| 278 | |
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| 279 | /* compression tag format: |
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| 280 | * |
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| 281 | * unsigned int compressed:1; |
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| 282 | * if compressed==0: |
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| 283 | * unsigned int last:1; ==1 -> this is the last block |
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| 284 | * unsigned int len:6; length of uncompressible bytes |
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| 285 | * char[len]; |
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| 286 | * if compressed==1: |
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| 287 | * unsigned int idxlen:1; ==0 -> 10-bit index |
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| 288 | * ==1 -> 18-bit index |
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| 289 | * unsigned int idxhigh:2; the 2 highest bits of the index |
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| 290 | * unsigned int len:4; (length of word) - (MIN_COMPR_WORD_LEN-1) |
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| 291 | * if len==0: |
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| 292 | * char extralen; (length of word) - |
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| 293 | * char[idxlen+1]; index (low,high) |
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| 294 | * |
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| 295 | * tag == 64 -> end of dictionary compressed block (if not coded in last uncompressed block) |
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| 296 | */ |
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| 297 | |
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| 298 | inline int INDEX_DICT_OFFSET(int idx, GB_DICTIONARY *dict) { |
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| 299 | gb_assert(idx<dict->words); |
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| 300 | return ntohl(dict->offsets[idx]); |
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| 301 | } |
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| 302 | inline int ALPHA_DICT_OFFSET(int idx, GB_DICTIONARY *dict) { |
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| 303 | int realIndex; |
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| 304 | gb_assert(idx<dict->words); |
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| 305 | realIndex = ntohl(dict->resort[idx]); |
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| 306 | return INDEX_DICT_OFFSET(realIndex, dict); |
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| 307 | } |
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| 308 | |
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| 309 | // #define ALPHA_DICT_OFFSET(i) ntohl(offset[ntohl(resort[i])]) |
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| 310 | // #define INDEX_DICT_OFFSET(i) ntohl(offset[i]) |
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| 311 | |
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| 312 | #define LEN_BITS 4 |
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| 313 | #define INDEX_BITS 2 |
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| 314 | #define INDEX_LEN_BITS 1 |
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| 315 | |
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| 316 | #define LEN_SHIFT 0 |
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| 317 | #define INDEX_SHIFT (LEN_SHIFT+LEN_BITS) |
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| 318 | #define INDEX_LEN_SHIFT (INDEX_SHIFT+INDEX_BITS) |
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| 319 | |
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| 320 | #define BITMASK(bits) ((1<<(bits))-1) |
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| 321 | #define GETVAL(tag,typ) (((tag)>>typ##_SHIFT)&BITMASK(typ##_BITS)) |
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| 322 | |
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| 323 | #define MIN_SHORTLEN 6 |
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| 324 | #define MAX_SHORTLEN (BITMASK(LEN_BITS)+MIN_SHORTLEN-1) |
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| 325 | #define MIN_LONGLEN (MAX_SHORTLEN+1) |
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| 326 | #define MAX_LONGLEN (MIN_LONGLEN+255) |
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| 327 | |
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| 328 | #define SHORTLEN_DECR (MIN_SHORTLEN-1) // !! zero is used as flag for long len !! |
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| 329 | #define LONGLEN_DECR MIN_LONGLEN |
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| 330 | |
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| 331 | #define MIN_COMPR_WORD_LEN MIN_SHORTLEN |
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| 332 | #define MAX_COMPR_WORD_LEN MAX_LONGLEN |
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| 333 | |
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| 334 | #define MAX_SHORT_INDEX BITMASK(INDEX_BITS+8) |
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| 335 | #define MAX_LONG_INDEX BITMASK(INDEX_BITS+16) |
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| 336 | |
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| 337 | #define LAST_COMPRESSED_BIT 64 |
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| 338 | |
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| 339 | #ifdef DEBUG |
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| 340 | # define DUMP_COMPRESSION_TEST 0 |
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| 341 | /* 0 = only compression ratio |
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| 342 | * 1 = + original/compressed/decompressed |
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| 343 | * 2 = + words used to compress/uncompress |
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| 344 | * 3 = + matching words in dictionary |
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| 345 | * 4 = + search of words in dictionary |
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| 346 | */ |
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| 347 | #else |
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| 348 | # define DUMP_COMPRESSION_TEST 0 |
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| 349 | #endif |
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| 350 | |
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| 351 | #ifdef DEBUG |
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| 352 | // #define COUNT_CHUNKS |
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| 353 | |
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| 354 | #if defined(COUNT_CHUNKS) |
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| 355 | |
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| 356 | static long uncompressedBlocks[64]; |
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| 357 | static long compressedBlocks[MAX_LONGLEN]; |
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| 358 | |
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| 359 | static void clearChunkCounters() { |
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| 360 | int i; |
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| 361 | |
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| 362 | for (i=0; i<64; i++) uncompressedBlocks[i] = 0; |
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| 363 | for (i=0; i<MAX_LONGLEN; i++) compressedBlocks[i] = 0; |
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| 364 | } |
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| 365 | |
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| 366 | static void dumpChunkCounters() { |
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| 367 | int i; |
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| 368 | |
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| 369 | printf("------------------------------\n" "Uncompressed blocks used:\n"); |
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| 370 | for (i=0; i<64; i++) if (uncompressedBlocks[i]) printf(" size=%i used=%li\n", i, uncompressedBlocks[i]); |
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| 371 | printf("------------------------------\n" "Words used:\n"); |
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| 372 | for (i=0; i<MAX_LONGLEN; i++) if (compressedBlocks[i]) printf(" size=%i used=%li\n", i, compressedBlocks[i]); |
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| 373 | printf("------------------------------\n"); |
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| 374 | } |
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| 375 | #endif // COUNT_CHUNKS |
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| 376 | |
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| 377 | static cu_str lstr(cu_str s, int len) { |
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| 378 | #define BUFLEN 20000 |
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| 379 | static unsigned_char buf[BUFLEN]; |
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| 380 | |
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| 381 | gb_assert(len<BUFLEN); |
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| 382 | memcpy(buf, s, len); |
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| 383 | buf[len] = 0; |
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| 384 | |
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| 385 | return buf; |
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| 386 | } |
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| 387 | |
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| 388 | #if DUMP_COMPRESSION_TEST>=2 |
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| 389 | |
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| 390 | static cu_str dict_word(GB_DICTIONARY *dict, int idx, int len) { |
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| 391 | return lstr(dict->text+INDEX_DICT_OFFSET(idx, dict), len); |
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| 392 | } |
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| 393 | |
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| 394 | #endif |
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| 395 | |
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| 396 | #if DUMP_COMPRESSION_TEST>=1 |
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| 397 | |
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| 398 | static void dumpBinary(u_str data, long size) { |
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| 399 | #define PER_LINE 12 |
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| 400 | int cnt = 0; |
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| 401 | |
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| 402 | while (size--) { |
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| 403 | unsigned_char c = *data++; |
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| 404 | int bitval = 128; |
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| 405 | int bits = 8; |
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| 406 | |
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| 407 | while (bits--) { |
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| 408 | putchar(c&bitval ? '1' : '0'); |
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| 409 | bitval>>=1; |
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| 410 | } |
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| 411 | putchar(' '); |
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| 412 | |
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| 413 | cnt = (cnt+1)%PER_LINE; |
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| 414 | if (!cnt) putchar('\n'); |
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| 415 | } |
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| 416 | |
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| 417 | if (cnt) putchar('\n'); |
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| 418 | } |
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| 419 | |
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| 420 | #endif |
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| 421 | |
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| 422 | #endif |
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| 423 | |
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| 424 | inline int GB_MEMCMP(const void *vm1, const void *vm2, long size) { |
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| 425 | char *c1 = (char*)vm1, |
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| 426 | *c2 = (char*)vm2; |
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| 427 | int diff = 0; |
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| 428 | |
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| 429 | while (size-- && !diff) diff = *c1++-*c2++; |
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| 430 | return diff; |
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| 431 | } |
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| 432 | |
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| 433 | // -------------------------------------------------- |
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| 434 | |
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| 435 | static int searchWord(GB_DICTIONARY *dict, cu_str source, long size, unsigned long *wordIndex, int *wordLen) { |
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| 436 | int idx = -1; |
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| 437 | int l = 0; |
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| 438 | int h = dict->words-1; |
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| 439 | cu_str text = dict->text; |
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| 440 | GB_NINT *resort = dict->resort; |
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| 441 | int dsize = dict->textlen; |
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| 442 | int ilen = 0; |
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| 443 | |
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| 444 | while (l<h-1) { |
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| 445 | int m = (l+h)/2; |
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| 446 | long off = ALPHA_DICT_OFFSET(m, dict); |
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| 447 | cu_str dictword = text+off; |
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| 448 | long msize = min(size, dsize-off); |
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| 449 | |
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| 450 | #if DUMP_COMPRESSION_TEST>=4 |
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| 451 | printf(" %s (%i)\n", lstr(dictword, 20), m); |
|---|
| 452 | #endif |
|---|
| 453 | |
|---|
| 454 | if (GB_MEMCMP(source, dictword, msize)<=0) h = m; |
|---|
| 455 | else l = m; |
|---|
| 456 | } |
|---|
| 457 | |
|---|
| 458 | while (l<=h) { |
|---|
| 459 | int off = ALPHA_DICT_OFFSET(l, dict); |
|---|
| 460 | cu_str word = text+off; |
|---|
| 461 | int msize = (int)min(size, dsize-off); |
|---|
| 462 | int equal = 0; |
|---|
| 463 | cu_str s = source; |
|---|
| 464 | |
|---|
| 465 | while (msize-- && *s++==*word++) equal++; |
|---|
| 466 | |
|---|
| 467 | #if DUMP_COMPRESSION_TEST>=3 |
|---|
| 468 | if (equal>=MIN_COMPR_WORD_LEN) { |
|---|
| 469 | printf(" EQUAL=%i '%s' (%i->%i, off=%i)", equal, lstr(text+off, equal), l, ntohl(resort[l]), ALPHA_DICT_OFFSET(l, dict)); |
|---|
| 470 | printf(" (context=%s)\n", lstr(text+off-min(off, 20), min(off, 20)+equal+20)); |
|---|
| 471 | } |
|---|
| 472 | #endif |
|---|
| 473 | |
|---|
| 474 | if (equal>ilen) { |
|---|
| 475 | ilen = equal; |
|---|
| 476 | idx = ntohl(resort[l]); |
|---|
| 477 | gb_assert(idx<dict->words); |
|---|
| 478 | } |
|---|
| 479 | |
|---|
| 480 | l++; |
|---|
| 481 | } |
|---|
| 482 | |
|---|
| 483 | *wordIndex = idx; |
|---|
| 484 | *wordLen = (int)min(ilen, MAX_COMPR_WORD_LEN); |
|---|
| 485 | |
|---|
| 486 | return idx!=-1 && ilen>=MIN_COMPR_WORD_LEN; |
|---|
| 487 | } |
|---|
| 488 | |
|---|
| 489 | #ifdef DEBUG |
|---|
| 490 | int lookup_DICTIONARY(GB_DICTIONARY *dict, GB_CSTR source) { // used for debugging |
|---|
| 491 | unsigned long wordIndex; |
|---|
| 492 | int wordLen; |
|---|
| 493 | int wordFound = searchWord(dict, (cu_str)source, strlen(source), &wordIndex, &wordLen); |
|---|
| 494 | |
|---|
| 495 | if (wordFound) { |
|---|
| 496 | printf("'%s' (idx=%lu, off=%i)\n", lstr(dict->text+ntohl(dict->offsets[wordIndex]), wordLen), wordIndex, ntohl(dict->offsets[wordIndex])); |
|---|
| 497 | } |
|---|
| 498 | |
|---|
| 499 | return wordFound; |
|---|
| 500 | } |
|---|
| 501 | #endif |
|---|
| 502 | |
|---|
| 503 | |
|---|
| 504 | |
|---|
| 505 | static char *gb_uncompress_by_dictionary_internal(GB_DICTIONARY *dict, /* GBDATA *gbd, */ GB_CSTR s_source, const size_t size, bool append_zero, size_t *new_size) { |
|---|
| 506 | cu_str source = (cu_str)s_source; |
|---|
| 507 | u_str dest; |
|---|
| 508 | u_str buffer; |
|---|
| 509 | cu_str text = dict->text; |
|---|
| 510 | int done = 0; |
|---|
| 511 | long left = size; |
|---|
| 512 | |
|---|
| 513 | dest = buffer = (u_str)GB_give_other_buffer(s_source, size+2); |
|---|
| 514 | |
|---|
| 515 | while (left && !done) { |
|---|
| 516 | int c; |
|---|
| 517 | |
|---|
| 518 | if ((c=*source++)&128) { // compressed data |
|---|
| 519 | int indexLen = GETVAL(c, INDEX_LEN); |
|---|
| 520 | unsigned long idx = GETVAL(c, INDEX); |
|---|
| 521 | |
|---|
| 522 | c = GETVAL(c, LEN); // ==wordLen |
|---|
| 523 | if (c) c += SHORTLEN_DECR; |
|---|
| 524 | else c = *source+++LONGLEN_DECR; |
|---|
| 525 | |
|---|
| 526 | gb_assert(indexLen>=0 && indexLen<=1); |
|---|
| 527 | |
|---|
| 528 | if (indexLen==0) { |
|---|
| 529 | idx = (idx << 8) | *source++; |
|---|
| 530 | } |
|---|
| 531 | else { |
|---|
| 532 | idx = (((idx << 8) | source[1]) << 8) | source[0]; |
|---|
| 533 | source += 2; |
|---|
| 534 | } |
|---|
| 535 | |
|---|
| 536 | gb_assert(idx<(GB_ULONG)dict->words); |
|---|
| 537 | |
|---|
| 538 | { |
|---|
| 539 | cu_str word = text+INDEX_DICT_OFFSET(idx, dict); |
|---|
| 540 | |
|---|
| 541 | #if DUMP_COMPRESSION_TEST>=2 |
|---|
| 542 | printf(" word='%s' (idx=%lu, off=%li, len=%i)\n", |
|---|
| 543 | lstr(word, c), idx, (long)ntohl(dict->offsets[idx]), c); |
|---|
| 544 | #endif |
|---|
| 545 | |
|---|
| 546 | { |
|---|
| 547 | u_str d = dest; |
|---|
| 548 | gb_assert(((d + c) <= word) || (d >= (word + c))); |
|---|
| 549 | while (c--) *d++ = *word++; // LOOP_VECTORIZED |
|---|
| 550 | dest = d; |
|---|
| 551 | } |
|---|
| 552 | } |
|---|
| 553 | } |
|---|
| 554 | else { // uncompressed bytes |
|---|
| 555 | if (c & LAST_COMPRESSED_BIT) { |
|---|
| 556 | done = 1; |
|---|
| 557 | c ^= LAST_COMPRESSED_BIT; |
|---|
| 558 | } |
|---|
| 559 | |
|---|
| 560 | left -= c; |
|---|
| 561 | { |
|---|
| 562 | u_str d = dest; |
|---|
| 563 | gb_assert(((d + c) <= source) || (d >= (source + c))); |
|---|
| 564 | while (c--) *d++ = *source++; // LOOP_VECTORIZED |
|---|
| 565 | dest=d; |
|---|
| 566 | } |
|---|
| 567 | } |
|---|
| 568 | } |
|---|
| 569 | |
|---|
| 570 | if (append_zero) *dest++ = 0; |
|---|
| 571 | |
|---|
| 572 | *new_size = dest-buffer; |
|---|
| 573 | gb_assert(size >= *new_size); // buffer overflow |
|---|
| 574 | |
|---|
| 575 | return (char *)buffer; |
|---|
| 576 | } |
|---|
| 577 | |
|---|
| 578 | char *gb_uncompress_by_dictionary(GBDATA *gbd, GB_CSTR s_source, size_t size, size_t *new_size) { |
|---|
| 579 | GB_DICTIONARY *dict = gb_get_dictionary(GB_MAIN(gbd), GB_KEY_QUARK(gbd)); |
|---|
| 580 | bool append_zero = gbd->is_a_string(); |
|---|
| 581 | |
|---|
| 582 | if (!dict) { |
|---|
| 583 | GB_ERROR error = GBS_global_string("Cannot decompress db-entry '%s' (no dictionary found)\n", GB_get_db_path(gbd)); |
|---|
| 584 | GB_export_error(error); |
|---|
| 585 | return NULp; |
|---|
| 586 | } |
|---|
| 587 | |
|---|
| 588 | return gb_uncompress_by_dictionary_internal(dict, s_source, size, append_zero, new_size); |
|---|
| 589 | } |
|---|
| 590 | |
|---|
| 591 | char *gb_compress_by_dictionary(GB_DICTIONARY *dict, GB_CSTR s_source, size_t size, size_t *msize, int last_flag, int search_backward, int search_forward) { |
|---|
| 592 | cu_str source = (cu_str)s_source; |
|---|
| 593 | u_str dest; |
|---|
| 594 | u_str buffer; |
|---|
| 595 | cu_str unknown = source; // start of uncompressible bytes |
|---|
| 596 | u_str lastUncompressed = NULp; // ptr to start of last block of uncompressible bytes (in dest) |
|---|
| 597 | |
|---|
| 598 | #if defined(ASSERTION_USED) |
|---|
| 599 | const size_t org_size = size; |
|---|
| 600 | #endif // ASSERTION_USED |
|---|
| 601 | |
|---|
| 602 | gb_assert(size>0); // compression of zero-length data fails! |
|---|
| 603 | |
|---|
| 604 | dest = buffer = (u_str)GB_give_other_buffer((GB_CSTR)source, 1+(size/63+1)+size); |
|---|
| 605 | *dest++ = GB_COMPRESSION_DICTIONARY | last_flag; |
|---|
| 606 | |
|---|
| 607 | while (size) { |
|---|
| 608 | unsigned long wordIndex; |
|---|
| 609 | int wordLen; |
|---|
| 610 | int wordFound; |
|---|
| 611 | |
|---|
| 612 | if ((wordFound = searchWord(dict, source, size, &wordIndex, &wordLen))) { |
|---|
| 613 | int length; |
|---|
| 614 | |
|---|
| 615 | takeRest : |
|---|
| 616 | length = source-unknown; |
|---|
| 617 | |
|---|
| 618 | if (length) { |
|---|
| 619 | int shift; |
|---|
| 620 | int takeShift = 0; |
|---|
| 621 | int maxShift = (int)min(search_forward, wordLen-1); |
|---|
| 622 | |
|---|
| 623 | for (shift=1; shift<=maxShift; shift++) { |
|---|
| 624 | unsigned long wordIndex2; |
|---|
| 625 | int wordLen2; |
|---|
| 626 | int wordFound2; |
|---|
| 627 | |
|---|
| 628 | if ((wordFound2 = searchWord(dict, source+shift, size-shift, &wordIndex2, &wordLen2))) { |
|---|
| 629 | if (wordLen2>(wordLen+shift)) { |
|---|
| 630 | wordIndex = wordIndex2; |
|---|
| 631 | wordLen = wordLen2; |
|---|
| 632 | takeShift = shift; |
|---|
| 633 | } |
|---|
| 634 | } |
|---|
| 635 | } |
|---|
| 636 | |
|---|
| 637 | if (takeShift) { |
|---|
| 638 | source += takeShift; |
|---|
| 639 | size -= takeShift; |
|---|
| 640 | length = source-unknown; |
|---|
| 641 | } |
|---|
| 642 | } |
|---|
| 643 | |
|---|
| 644 | while (length) { // if there were uncompressible bytes |
|---|
| 645 | int take = (int)min(length, 63); |
|---|
| 646 | |
|---|
| 647 | #ifdef COUNT_CHUNKS |
|---|
| 648 | uncompressedBlocks[take]++; |
|---|
| 649 | #endif |
|---|
| 650 | |
|---|
| 651 | lastUncompressed = dest; |
|---|
| 652 | |
|---|
| 653 | *dest++ = take; // tag byte |
|---|
| 654 | memcpy(dest, unknown, take); |
|---|
| 655 | dest += take; |
|---|
| 656 | unknown += take; |
|---|
| 657 | length -= take; |
|---|
| 658 | } |
|---|
| 659 | |
|---|
| 660 | gb_assert(unknown==source); |
|---|
| 661 | |
|---|
| 662 | while (wordFound) { // as long as we find words in dictionary |
|---|
| 663 | int indexLen = wordIndex>MAX_SHORT_INDEX; |
|---|
| 664 | int indexHighBits = indexLen==0 ? wordIndex>>8 : wordIndex>>16; |
|---|
| 665 | int nextWordFound; |
|---|
| 666 | int nextWordLen; |
|---|
| 667 | unsigned long nextWordIndex; |
|---|
| 668 | |
|---|
| 669 | gb_assert((long)wordIndex<dict->words); |
|---|
| 670 | gb_assert((long)wordIndex <= MAX_LONG_INDEX); |
|---|
| 671 | gb_assert(indexHighBits==(indexHighBits & BITMASK(INDEX_BITS))); |
|---|
| 672 | gb_assert(wordLen>=MIN_SHORTLEN); |
|---|
| 673 | |
|---|
| 674 | lastUncompressed = NULp; |
|---|
| 675 | |
|---|
| 676 | { |
|---|
| 677 | cu_str source2 = source+wordLen; |
|---|
| 678 | long size2 = size-wordLen; |
|---|
| 679 | |
|---|
| 680 | if (!(nextWordFound=searchWord(dict, source+wordLen, size-wordLen, &nextWordIndex, &nextWordLen))) { // no word right afterwards |
|---|
| 681 | int shift; |
|---|
| 682 | |
|---|
| 683 | for (shift=1; shift<=search_backward && shift<(wordLen-MIN_COMPR_WORD_LEN); shift++) { |
|---|
| 684 | // try to cut end of word to get a better result |
|---|
| 685 | unsigned long wordIndex2; |
|---|
| 686 | int wordLen2; |
|---|
| 687 | int wordFound2; |
|---|
| 688 | |
|---|
| 689 | if ((wordFound2=searchWord(dict, source2-shift, size2+shift, &wordIndex2, &wordLen2))) { |
|---|
| 690 | if (wordLen2>(shift+1)) { |
|---|
| 691 | wordLen -= shift; |
|---|
| 692 | |
|---|
| 693 | nextWordFound = 1; |
|---|
| 694 | nextWordIndex = wordIndex2; |
|---|
| 695 | nextWordLen = wordLen2; |
|---|
| 696 | break; |
|---|
| 697 | } |
|---|
| 698 | } |
|---|
| 699 | } |
|---|
| 700 | } |
|---|
| 701 | } |
|---|
| 702 | |
|---|
| 703 | #ifdef COUNT_CHUNKS |
|---|
| 704 | compressedBlocks[wordLen]++; |
|---|
| 705 | #endif |
|---|
| 706 | |
|---|
| 707 | #if DUMP_COMPRESSION_TEST>=2 |
|---|
| 708 | printf(" word='%s' (idx=%li, off=%i, len=%i)\n", |
|---|
| 709 | dict_word(dict, wordIndex, wordLen), wordIndex, (int)ntohl(dict->offsets[wordIndex]), wordLen); |
|---|
| 710 | #endif |
|---|
| 711 | |
|---|
| 712 | if (wordLen<=MAX_SHORTLEN) { |
|---|
| 713 | *dest++ = 128 | |
|---|
| 714 | (indexLen << INDEX_LEN_SHIFT) | |
|---|
| 715 | (indexHighBits << INDEX_SHIFT) | |
|---|
| 716 | ((wordLen-SHORTLEN_DECR) << LEN_SHIFT); |
|---|
| 717 | } |
|---|
| 718 | else { |
|---|
| 719 | *dest++ = 128 | |
|---|
| 720 | (indexLen << INDEX_LEN_SHIFT) | |
|---|
| 721 | (indexHighBits << INDEX_SHIFT); |
|---|
| 722 | *dest++ = wordLen-LONGLEN_DECR; // extra length byte |
|---|
| 723 | } |
|---|
| 724 | |
|---|
| 725 | *dest++ = (char)wordIndex; // low index byte |
|---|
| 726 | if (indexLen) |
|---|
| 727 | *dest++ = (char)(wordIndex >> 8); // high index byte |
|---|
| 728 | |
|---|
| 729 | unknown = source += wordLen; |
|---|
| 730 | size -= wordLen; |
|---|
| 731 | |
|---|
| 732 | wordFound = nextWordFound; |
|---|
| 733 | wordIndex = nextWordIndex; |
|---|
| 734 | wordLen = nextWordLen; |
|---|
| 735 | } |
|---|
| 736 | } |
|---|
| 737 | else { |
|---|
| 738 | source++; |
|---|
| 739 | if (--size==0) goto takeRest; |
|---|
| 740 | } |
|---|
| 741 | } |
|---|
| 742 | |
|---|
| 743 | if (lastUncompressed) *lastUncompressed |= LAST_COMPRESSED_BIT; |
|---|
| 744 | else *dest++ = LAST_COMPRESSED_BIT; |
|---|
| 745 | |
|---|
| 746 | *msize = dest-buffer; |
|---|
| 747 | |
|---|
| 748 | #if defined(ASSERTION_USED) |
|---|
| 749 | { |
|---|
| 750 | size_t new_size = -1; |
|---|
| 751 | char *test = gb_uncompress_by_dictionary_internal(dict, (GB_CSTR)buffer+1, org_size + GB_COMPRESSION_TAGS_SIZE_MAX, true, &new_size); |
|---|
| 752 | |
|---|
| 753 | gb_assert(memcmp(test, s_source, org_size) == 0); |
|---|
| 754 | gb_assert((org_size+1) == new_size); |
|---|
| 755 | } |
|---|
| 756 | #endif // ASSERTION_USED |
|---|
| 757 | |
|---|
| 758 | return (char*)buffer; |
|---|
| 759 | } |
|---|
| 760 | |
|---|
| 761 | |
|---|
| 762 | #if defined(TEST_DICT) |
|---|
| 763 | |
|---|
| 764 | static void test_dictionary(GB_DICTIONARY *dict, O_gbdByKey *gbk, long *uncompSum, long *compSum) { |
|---|
| 765 | long uncompressed_sum = 0; |
|---|
| 766 | long compressed_sum = 0; |
|---|
| 767 | |
|---|
| 768 | long dict_size = (dict->words*2+1)*sizeof(GB_NINT)+dict->textlen; |
|---|
| 769 | |
|---|
| 770 | long char_count[256]; |
|---|
| 771 | for (int i=0; i<256; i++) char_count[i] = 0; |
|---|
| 772 | |
|---|
| 773 | printf(" * Testing compression..\n"); |
|---|
| 774 | |
|---|
| 775 | #ifdef COUNT_CHUNKS |
|---|
| 776 | clearChunkCounters(); |
|---|
| 777 | #endif |
|---|
| 778 | |
|---|
| 779 | for (int cnt=0; cnt<gbk->cnt; cnt++) { |
|---|
| 780 | GBDATA *gbd = gbk->gbds[cnt]; |
|---|
| 781 | |
|---|
| 782 | if (COMPRESSIBLE(gbd->type())) { |
|---|
| 783 | size_t size; |
|---|
| 784 | cu_str data = get_data_n_size(gbd, &size); |
|---|
| 785 | |
|---|
| 786 | if (gbd->is_a_string()) size--; |
|---|
| 787 | if (size<1) continue; |
|---|
| 788 | |
|---|
| 789 | u_str copy = (u_str)gbm_get_mem(size, GBM_DICT_INDEX); |
|---|
| 790 | gb_assert(copy!=0); |
|---|
| 791 | memcpy(copy, data, size); |
|---|
| 792 | |
|---|
| 793 | #if DUMP_COMPRESSION_TEST>=1 |
|---|
| 794 | printf("----------------------------\n"); |
|---|
| 795 | printf("original : %3li b = '%s'\n", size, data); |
|---|
| 796 | #endif |
|---|
| 797 | |
|---|
| 798 | int last_flag = 0; |
|---|
| 799 | size_t compressedSize; |
|---|
| 800 | u_str compressed = (u_str)gb_compress_by_dictionary(dict, (GB_CSTR)data, size, &compressedSize, last_flag, 9999, 2); |
|---|
| 801 | |
|---|
| 802 | #if DUMP_COMPRESSION_TEST>=1 |
|---|
| 803 | printf("compressed : %3li b = '%s'\n", compressedSize, lstr(compressed, compressedSize)); |
|---|
| 804 | dumpBinary(compressed, compressedSize); |
|---|
| 805 | #endif |
|---|
| 806 | |
|---|
| 807 | for (size_t i=0; i<compressedSize; i++) char_count[compressed[i]]++; |
|---|
| 808 | |
|---|
| 809 | size_t new_size = -1; |
|---|
| 810 | u_str uncompressed = (u_str)gb_uncompress_by_dictionary(gbd, (char*)compressed+1, size+GB_COMPRESSION_TAGS_SIZE_MAX, &new_size); |
|---|
| 811 | |
|---|
| 812 | #if DUMP_COMPRESSION_TEST>=1 |
|---|
| 813 | printf("copy : %3li b = '%s'\n", size, lstr(copy, size)); |
|---|
| 814 | printf("decompressed: %3li b = '%s'\n", size, lstr(uncompressed, size)); |
|---|
| 815 | #endif |
|---|
| 816 | |
|---|
| 817 | if (GB_MEMCMP(copy, uncompressed, size)!=0) { |
|---|
| 818 | int byte = 0; |
|---|
| 819 | |
|---|
| 820 | while (copy[byte]==uncompressed[byte]) byte++; |
|---|
| 821 | printf("Error in compression (off=%i, '%s'", byte, lstr(copy+byte, 10)); |
|---|
| 822 | printf("!='%s'\n", lstr(uncompressed+byte, 10)); |
|---|
| 823 | } |
|---|
| 824 | |
|---|
| 825 | if (compressedSize<size) { |
|---|
| 826 | uncompressed_sum += size; |
|---|
| 827 | compressed_sum += compressedSize; |
|---|
| 828 | } |
|---|
| 829 | else { |
|---|
| 830 | uncompressed_sum += size; |
|---|
| 831 | compressed_sum += size; |
|---|
| 832 | } |
|---|
| 833 | |
|---|
| 834 | gbm_free_mem(copy, size, GBM_DICT_INDEX); |
|---|
| 835 | } |
|---|
| 836 | } |
|---|
| 837 | |
|---|
| 838 | #ifdef COUNT_CHUNKS |
|---|
| 839 | dumpChunkCounters(); |
|---|
| 840 | #endif |
|---|
| 841 | |
|---|
| 842 | { |
|---|
| 843 | long compressed_plus_dict = compressed_sum+dict_size; |
|---|
| 844 | char *dict_text = GBS_global_string_copy("+dict %li b", dict_size); |
|---|
| 845 | long ratio = (compressed_plus_dict*100)/uncompressed_sum; |
|---|
| 846 | |
|---|
| 847 | printf(" uncompressed size = %10li b\n" |
|---|
| 848 | " compressed size = %10li b\n" |
|---|
| 849 | " %17s = %10li b (Ratio=%li%%)\n", |
|---|
| 850 | uncompressed_sum, |
|---|
| 851 | compressed_sum, |
|---|
| 852 | dict_text, compressed_plus_dict, ratio); |
|---|
| 853 | |
|---|
| 854 | free(dict_text); |
|---|
| 855 | } |
|---|
| 856 | |
|---|
| 857 | *uncompSum += uncompressed_sum; |
|---|
| 858 | *compSum += compressed_sum+dict_size; |
|---|
| 859 | } |
|---|
| 860 | |
|---|
| 861 | #endif // TEST_DICT |
|---|
| 862 | |
|---|
| 863 | |
|---|
| 864 | // ******************* Build dictionary ****************** |
|---|
| 865 | |
|---|
| 866 | #ifdef DEBUG |
|---|
| 867 | #define TEST // test trees? |
|---|
| 868 | // #define DUMP_TREE // dump trees? |
|---|
| 869 | |
|---|
| 870 | // #define DUMP_EXPAND |
|---|
| 871 | /* |
|---|
| 872 | #define SELECT_WORDS |
|---|
| 873 | #define SELECTED_WORDS "oropl" |
|---|
| 874 | */ |
|---|
| 875 | |
|---|
| 876 | # ifdef SELECT_WORDS |
|---|
| 877 | static char *strnstr(char *s1, int len, char *s2) { |
|---|
| 878 | char c = *s2; |
|---|
| 879 | int len2 = strlen(s2); |
|---|
| 880 | |
|---|
| 881 | while (len-->=len2) { |
|---|
| 882 | if (*s1==c) { |
|---|
| 883 | if (strncmp(s1, s2, len2)==0) return s1; |
|---|
| 884 | } |
|---|
| 885 | s1++; |
|---|
| 886 | } |
|---|
| 887 | |
|---|
| 888 | return NULp; |
|---|
| 889 | } |
|---|
| 890 | # endif |
|---|
| 891 | |
|---|
| 892 | #ifdef DUMP_TREE |
|---|
| 893 | static void dump_dtree(int deep, DictTree tree) { |
|---|
| 894 | static unsigned_char buffer[1024]; |
|---|
| 895 | |
|---|
| 896 | if (tree.full) { |
|---|
| 897 | switch (tree.full->typ) { |
|---|
| 898 | case FULL_NODE: { |
|---|
| 899 | int idx; |
|---|
| 900 | |
|---|
| 901 | for (idx=0; idx<256; idx++) { |
|---|
| 902 | buffer[deep] = idx; |
|---|
| 903 | buffer[deep+1] = 0; |
|---|
| 904 | |
|---|
| 905 | if (tree.full->son[idx].exists) dump_dtree(deep+1, tree.full->son[idx]); |
|---|
| 906 | else if (tree.full->count[idx]>0) printf(" '%s' (%i) [array]\n", buffer, tree.full->count[idx]); |
|---|
| 907 | } |
|---|
| 908 | break; |
|---|
| 909 | } |
|---|
| 910 | case SINGLE_NODE: { |
|---|
| 911 | buffer[deep] = tree.single->ch; |
|---|
| 912 | buffer[deep+1] = 0; |
|---|
| 913 | |
|---|
| 914 | if (tree.single->son.exists) dump_dtree(deep+1, tree.single->son); |
|---|
| 915 | else printf(" '%s' (%i) [single]\n", buffer, tree.single->count); |
|---|
| 916 | |
|---|
| 917 | if (tree.single->brother.exists) dump_dtree(deep, tree.single->brother); |
|---|
| 918 | break; |
|---|
| 919 | } |
|---|
| 920 | } |
|---|
| 921 | } |
|---|
| 922 | } |
|---|
| 923 | #endif |
|---|
| 924 | |
|---|
| 925 | #else |
|---|
| 926 | #ifdef DUMP_TREE |
|---|
| 927 | # define dump_dtree(deep, tree) |
|---|
| 928 | #endif |
|---|
| 929 | #endif |
|---|
| 930 | |
|---|
| 931 | #ifdef TEST |
|---|
| 932 | static int testCounts(DictTree tree) { |
|---|
| 933 | // tests if all inner nodes have correct 'count's |
|---|
| 934 | int cnt = 0; |
|---|
| 935 | |
|---|
| 936 | if (tree.exists) { |
|---|
| 937 | switch (tree.full->typ) { |
|---|
| 938 | case SINGLE_NODE: { |
|---|
| 939 | while (tree.exists) { |
|---|
| 940 | if (tree.single->son.exists) { |
|---|
| 941 | int son_cnt = testCounts(tree.single->son); |
|---|
| 942 | #ifdef COUNT_EQUAL |
|---|
| 943 | gb_assert(son_cnt==tree.single->count); |
|---|
| 944 | #else |
|---|
| 945 | gb_assert(son_cnt<=tree.single->count); |
|---|
| 946 | #endif |
|---|
| 947 | } |
|---|
| 948 | |
|---|
| 949 | gb_assert(tree.single->count>0); |
|---|
| 950 | cnt += tree.single->count; |
|---|
| 951 | tree = tree.single->brother; |
|---|
| 952 | } |
|---|
| 953 | break; |
|---|
| 954 | } |
|---|
| 955 | case FULL_NODE: { |
|---|
| 956 | int idx, |
|---|
| 957 | sons = 0; |
|---|
| 958 | |
|---|
| 959 | for (idx=0; idx<256; idx++) { |
|---|
| 960 | if (tree.full->son[idx].exists) { |
|---|
| 961 | int son_cnt = testCounts(tree.full->son[idx]); |
|---|
| 962 | #ifdef COUNT_EQUAL |
|---|
| 963 | gb_assert(son_cnt==tree.full->count[idx]); |
|---|
| 964 | #else |
|---|
| 965 | gb_assert(son_cnt<=tree.full->count[idx]); |
|---|
| 966 | #endif |
|---|
| 967 | if (tree.full->usedSons) gb_assert(tree.full->count[idx]>0); |
|---|
| 968 | else gb_assert(tree.full->count[idx]==0); |
|---|
| 969 | |
|---|
| 970 | sons++; |
|---|
| 971 | } |
|---|
| 972 | else if (tree.full->count[idx]) { |
|---|
| 973 | sons++; |
|---|
| 974 | } |
|---|
| 975 | |
|---|
| 976 | cnt += tree.full->count[idx]; |
|---|
| 977 | } |
|---|
| 978 | |
|---|
| 979 | gb_assert(sons==tree.full->usedSons); |
|---|
| 980 | break; |
|---|
| 981 | } |
|---|
| 982 | } |
|---|
| 983 | } |
|---|
| 984 | |
|---|
| 985 | return cnt; |
|---|
| 986 | } |
|---|
| 987 | |
|---|
| 988 | // #define TEST_MAX_OCCUR_COUNT |
|---|
| 989 | |
|---|
| 990 | #ifdef TEST_MAX_OCCUR_COUNT |
|---|
| 991 | #define MAX_OCCUR_COUNT 600000 |
|---|
| 992 | #endif |
|---|
| 993 | |
|---|
| 994 | static DictTree test_dtree(DictTree tree) { |
|---|
| 995 | // only correct while tree is under contruction (build_dict_tree()) |
|---|
| 996 | |
|---|
| 997 | if (tree.exists) { |
|---|
| 998 | switch (tree.full->typ) { |
|---|
| 999 | case SINGLE_NODE: { |
|---|
| 1000 | #if defined(TEST_MAX_OCCUR_COUNT) |
|---|
| 1001 | gb_assert(tree.single->count<MAX_OCCUR_COUNT); // quite improbable |
|---|
| 1002 | #endif // TEST_MAX_OCCUR_COUNT |
|---|
| 1003 | |
|---|
| 1004 | if (tree.single->son.exists) { |
|---|
| 1005 | gb_assert(tree.single->count==0); |
|---|
| 1006 | test_dtree(tree.single->son); |
|---|
| 1007 | } |
|---|
| 1008 | else { |
|---|
| 1009 | gb_assert(tree.single->count>0); |
|---|
| 1010 | } |
|---|
| 1011 | |
|---|
| 1012 | if (tree.single->brother.exists) test_dtree(tree.single->brother); |
|---|
| 1013 | break; |
|---|
| 1014 | } |
|---|
| 1015 | case FULL_NODE: { |
|---|
| 1016 | int idx; |
|---|
| 1017 | int countSons = 0; |
|---|
| 1018 | |
|---|
| 1019 | for (idx=0; idx<256; idx++) { |
|---|
| 1020 | #if defined(TEST_MAX_OCCUR_COUNT) |
|---|
| 1021 | gb_assert(tree.full->count[idx]<MAX_OCCUR_COUNT); // quite improbable |
|---|
| 1022 | #endif // TEST_MAX_OCCUR_COUNT |
|---|
| 1023 | |
|---|
| 1024 | if (tree.full->son[idx].exists) { |
|---|
| 1025 | gb_assert(tree.full->count[idx]==0); |
|---|
| 1026 | test_dtree(tree.full->son[idx]); |
|---|
| 1027 | countSons++; |
|---|
| 1028 | } |
|---|
| 1029 | else { |
|---|
| 1030 | gb_assert(tree.full->count[idx]>=0); |
|---|
| 1031 | if (tree.full->count[idx]>0) |
|---|
| 1032 | countSons++; |
|---|
| 1033 | } |
|---|
| 1034 | } |
|---|
| 1035 | |
|---|
| 1036 | gb_assert(countSons==tree.full->usedSons); |
|---|
| 1037 | |
|---|
| 1038 | break; |
|---|
| 1039 | } |
|---|
| 1040 | } |
|---|
| 1041 | } |
|---|
| 1042 | |
|---|
| 1043 | return tree; |
|---|
| 1044 | } |
|---|
| 1045 | |
|---|
| 1046 | #else |
|---|
| 1047 | # define test_dtree(tree) // (tree) |
|---|
| 1048 | # define testCounts(tree) // 0 |
|---|
| 1049 | #endif |
|---|
| 1050 | |
|---|
| 1051 | |
|---|
| 1052 | static DictTree new_dtree(cu_str text, long len, long *memcount) { |
|---|
| 1053 | // creates a new (sub-)tree from 'text' (which has length 'len') |
|---|
| 1054 | DictTree tree; |
|---|
| 1055 | |
|---|
| 1056 | if (len) { |
|---|
| 1057 | SingleDictTree *tail = NULp; |
|---|
| 1058 | SingleDictTree *head = NULp; |
|---|
| 1059 | |
|---|
| 1060 | while (len) { |
|---|
| 1061 | if (tail) tail = tail->son.single = (SingleDictTree*)gbm_get_mem(sizeof(*tail), GBM_DICT_INDEX); |
|---|
| 1062 | else tail = head = (SingleDictTree*)gbm_get_mem(sizeof(*tail), GBM_DICT_INDEX); |
|---|
| 1063 | |
|---|
| 1064 | (*memcount) += sizeof(*tail); |
|---|
| 1065 | |
|---|
| 1066 | tail->typ = SINGLE_NODE; |
|---|
| 1067 | tail->ch = *text++; |
|---|
| 1068 | len--; |
|---|
| 1069 | |
|---|
| 1070 | tail->brother.single = NULp; |
|---|
| 1071 | tail->son.single = NULp; |
|---|
| 1072 | } |
|---|
| 1073 | |
|---|
| 1074 | tail->count = 1; |
|---|
| 1075 | tree.single = head; |
|---|
| 1076 | } |
|---|
| 1077 | else { |
|---|
| 1078 | tree.single = NULp; |
|---|
| 1079 | } |
|---|
| 1080 | |
|---|
| 1081 | return tree; |
|---|
| 1082 | } |
|---|
| 1083 | |
|---|
| 1084 | static DictTree single2full_dtree(DictTree tree, long *memcount) { |
|---|
| 1085 | if (tree.exists && tree.single->typ==SINGLE_NODE) { |
|---|
| 1086 | FullDictTree *full = (FullDictTree*)gbm_get_mem(sizeof(*full), GBM_DICT_INDEX); |
|---|
| 1087 | int idx; |
|---|
| 1088 | |
|---|
| 1089 | (*memcount) += sizeof(*full); |
|---|
| 1090 | full->typ = FULL_NODE; |
|---|
| 1091 | full->usedSons = 0; |
|---|
| 1092 | |
|---|
| 1093 | for (idx=0; idx<256; idx++) { // LOOP_VECTORIZED =1|3 // depends on whether this function gets inlined (1x(UNIT_TESTS=1) or 3x(UNIT_TESTS=0)) |
|---|
| 1094 | full->son[idx].exists = NULp; |
|---|
| 1095 | full->count[idx] = 0; |
|---|
| 1096 | } |
|---|
| 1097 | |
|---|
| 1098 | while (tree.exists) { |
|---|
| 1099 | SingleDictTree *t = tree.single; |
|---|
| 1100 | |
|---|
| 1101 | gb_assert(t->typ==SINGLE_NODE); |
|---|
| 1102 | gb_assert(!full->son[t->ch].exists); |
|---|
| 1103 | |
|---|
| 1104 | full->son[t->ch] = t->son; |
|---|
| 1105 | full->count[t->ch] = t->count; |
|---|
| 1106 | full->usedSons++; |
|---|
| 1107 | |
|---|
| 1108 | tree.single = t->brother.single; |
|---|
| 1109 | |
|---|
| 1110 | gbm_free_mem(t, sizeof(*t), GBM_DICT_INDEX); |
|---|
| 1111 | (*memcount) -= sizeof(*t); |
|---|
| 1112 | } |
|---|
| 1113 | |
|---|
| 1114 | tree.full = full; |
|---|
| 1115 | } |
|---|
| 1116 | |
|---|
| 1117 | return tree; |
|---|
| 1118 | } |
|---|
| 1119 | |
|---|
| 1120 | static void free_dtree(DictTree tree) { |
|---|
| 1121 | if (tree.exists) { |
|---|
| 1122 | switch (tree.full->typ) { |
|---|
| 1123 | case SINGLE_NODE: { |
|---|
| 1124 | if (tree.single->son.exists) free_dtree(tree.single->son); |
|---|
| 1125 | if (tree.single->brother.exists) free_dtree(tree.single->brother); |
|---|
| 1126 | |
|---|
| 1127 | gbm_free_mem(tree.single, sizeof(*(tree.single)), GBM_DICT_INDEX); |
|---|
| 1128 | break; |
|---|
| 1129 | } |
|---|
| 1130 | case FULL_NODE: { |
|---|
| 1131 | int idx; |
|---|
| 1132 | |
|---|
| 1133 | for (idx=0; idx<256; idx++) if (tree.full->son[idx].exists) free_dtree(tree.full->son[idx]); |
|---|
| 1134 | gbm_free_mem(tree.full, sizeof(*(tree.full)), GBM_DICT_INDEX); |
|---|
| 1135 | break; |
|---|
| 1136 | } |
|---|
| 1137 | } |
|---|
| 1138 | } |
|---|
| 1139 | } |
|---|
| 1140 | |
|---|
| 1141 | |
|---|
| 1142 | |
|---|
| 1143 | static DictTree cut_dtree(DictTree tree, int cut_count, long *memcount, long *leafcount) { |
|---|
| 1144 | /* removes all branches from 'tree' which are referenced less/equal than cut_count |
|---|
| 1145 | * returns: the reduced tree |
|---|
| 1146 | */ |
|---|
| 1147 | if (tree.exists) { |
|---|
| 1148 | switch (tree.full->typ) { |
|---|
| 1149 | case SINGLE_NODE: { |
|---|
| 1150 | if (tree.single->son.exists) tree.single->son = cut_dtree(tree.single->son, cut_count, memcount, leafcount); |
|---|
| 1151 | |
|---|
| 1152 | if (!tree.single->son.exists) { // leaf |
|---|
| 1153 | if (tree.single->count<=cut_count) { // leaf with less/equal references |
|---|
| 1154 | DictTree brother = tree.single->brother; |
|---|
| 1155 | |
|---|
| 1156 | gbm_free_mem(tree.single, sizeof(*tree.single), GBM_DICT_INDEX); |
|---|
| 1157 | (*memcount) -= sizeof(*tree.single); |
|---|
| 1158 | if (brother.exists) return cut_dtree(brother, cut_count, memcount, leafcount); |
|---|
| 1159 | |
|---|
| 1160 | tree.single = NULp; |
|---|
| 1161 | break; |
|---|
| 1162 | } |
|---|
| 1163 | else { |
|---|
| 1164 | (*leafcount)++; |
|---|
| 1165 | } |
|---|
| 1166 | } |
|---|
| 1167 | |
|---|
| 1168 | if (tree.single->brother.exists) tree.single->brother = cut_dtree(tree.single->brother, cut_count, memcount, leafcount); |
|---|
| 1169 | break; |
|---|
| 1170 | } |
|---|
| 1171 | case FULL_NODE: { |
|---|
| 1172 | int idx; |
|---|
| 1173 | int count = 0; |
|---|
| 1174 | |
|---|
| 1175 | for (idx=0; idx<256; idx++) { |
|---|
| 1176 | if (tree.full->son[idx].exists) { |
|---|
| 1177 | tree.full->son[idx] = cut_dtree(tree.full->son[idx], cut_count, memcount, leafcount); |
|---|
| 1178 | |
|---|
| 1179 | if (tree.full->son[idx].exists) count++; |
|---|
| 1180 | else tree.full->count[idx] = 0; |
|---|
| 1181 | } |
|---|
| 1182 | else if (tree.full->count[idx]>0) { |
|---|
| 1183 | if (tree.full->count[idx]<=cut_count) { |
|---|
| 1184 | tree.full->count[idx] = 0; |
|---|
| 1185 | } |
|---|
| 1186 | else { |
|---|
| 1187 | count++; |
|---|
| 1188 | (*leafcount)++; |
|---|
| 1189 | } |
|---|
| 1190 | } |
|---|
| 1191 | } |
|---|
| 1192 | |
|---|
| 1193 | tree.full->usedSons = count; |
|---|
| 1194 | |
|---|
| 1195 | if (!count) { // no more sons |
|---|
| 1196 | gbm_free_mem(tree.full, sizeof(*(tree.full)), GBM_DICT_INDEX); |
|---|
| 1197 | (*memcount) -= sizeof(*(tree.full)); |
|---|
| 1198 | tree.exists = NULp; |
|---|
| 1199 | } |
|---|
| 1200 | |
|---|
| 1201 | break; |
|---|
| 1202 | } |
|---|
| 1203 | } |
|---|
| 1204 | } |
|---|
| 1205 | |
|---|
| 1206 | return tree; |
|---|
| 1207 | } |
|---|
| 1208 | static DictTree cut_useless_words(DictTree tree, int deep, long *removed) { |
|---|
| 1209 | /* removes/shortens all branches of 'tree' which are not useful for compression |
|---|
| 1210 | * 'deep' should be zero (incremented by cut_useless_words) |
|---|
| 1211 | * 'removed' will be set to the # of removed occurrences |
|---|
| 1212 | * returns: the reduced tree |
|---|
| 1213 | */ |
|---|
| 1214 | *removed = 0; |
|---|
| 1215 | |
|---|
| 1216 | if (tree.exists) { |
|---|
| 1217 | deep++; |
|---|
| 1218 | |
|---|
| 1219 | switch (tree.full->typ) { |
|---|
| 1220 | long removed_single; |
|---|
| 1221 | |
|---|
| 1222 | case SINGLE_NODE: { |
|---|
| 1223 | if (tree.single->son.exists) { |
|---|
| 1224 | tree.single->son = cut_useless_words(tree.single->son, deep, &removed_single); |
|---|
| 1225 | tree.single->count -= removed_single; |
|---|
| 1226 | *removed += removed_single; |
|---|
| 1227 | } |
|---|
| 1228 | |
|---|
| 1229 | if (!tree.single->son.exists && !WORD_HELPFUL(deep, tree.single->count)) { |
|---|
| 1230 | DictTree brother = tree.single->brother; |
|---|
| 1231 | |
|---|
| 1232 | *removed += tree.single->count; |
|---|
| 1233 | gbm_free_mem(tree.single, sizeof(*tree.single), GBM_DICT_INDEX); |
|---|
| 1234 | |
|---|
| 1235 | if (brother.exists) { |
|---|
| 1236 | tree = cut_useless_words(brother, deep-1, &removed_single); |
|---|
| 1237 | *removed += removed_single; |
|---|
| 1238 | } |
|---|
| 1239 | else { |
|---|
| 1240 | tree.exists = NULp; |
|---|
| 1241 | } |
|---|
| 1242 | |
|---|
| 1243 | break; |
|---|
| 1244 | } |
|---|
| 1245 | |
|---|
| 1246 | if (tree.single->brother.exists) { |
|---|
| 1247 | tree.single->brother = cut_useless_words(tree.single->brother, deep-1, &removed_single); |
|---|
| 1248 | *removed += removed_single; |
|---|
| 1249 | } |
|---|
| 1250 | |
|---|
| 1251 | break; |
|---|
| 1252 | } |
|---|
| 1253 | case FULL_NODE: { |
|---|
| 1254 | int idx; |
|---|
| 1255 | int count = 0; |
|---|
| 1256 | |
|---|
| 1257 | for (idx=0; idx<256; idx++) { |
|---|
| 1258 | if (tree.full->son[idx].exists) { |
|---|
| 1259 | tree.full->son[idx] = cut_useless_words(tree.full->son[idx], deep, &removed_single); |
|---|
| 1260 | tree.full->count[idx] -= removed_single; |
|---|
| 1261 | *removed += removed_single; |
|---|
| 1262 | } |
|---|
| 1263 | |
|---|
| 1264 | if (tree.full->son[idx].exists) { |
|---|
| 1265 | count++; |
|---|
| 1266 | } |
|---|
| 1267 | else if (tree.full->count[idx]) { |
|---|
| 1268 | if (!WORD_HELPFUL(deep, tree.full->count[idx])) { // useless! |
|---|
| 1269 | *removed += tree.full->count[idx]; |
|---|
| 1270 | tree.full->count[idx] = 0; |
|---|
| 1271 | } |
|---|
| 1272 | else { |
|---|
| 1273 | count++; |
|---|
| 1274 | } |
|---|
| 1275 | } |
|---|
| 1276 | } |
|---|
| 1277 | |
|---|
| 1278 | tree.full->usedSons = count; |
|---|
| 1279 | |
|---|
| 1280 | if (!count) { // no more sons |
|---|
| 1281 | gbm_free_mem(tree.full, sizeof(*(tree.full)), GBM_DICT_INDEX); |
|---|
| 1282 | tree.exists = NULp; |
|---|
| 1283 | } |
|---|
| 1284 | |
|---|
| 1285 | break; |
|---|
| 1286 | } |
|---|
| 1287 | } |
|---|
| 1288 | } |
|---|
| 1289 | |
|---|
| 1290 | return tree; |
|---|
| 1291 | } |
|---|
| 1292 | |
|---|
| 1293 | static DictTree add_dtree_to_dtree(DictTree toAdd, DictTree to, long *memcount) { |
|---|
| 1294 | /* adds 'toAdd' as brother of 'to' (must be leftmost of all SINGLE_NODEs or a FULL_NODE) |
|---|
| 1295 | * returns: the leftmost of all SINGLE_NODEs or a FULL_NODE |
|---|
| 1296 | */ |
|---|
| 1297 | DictTree tree = toAdd; |
|---|
| 1298 | |
|---|
| 1299 | gb_assert(toAdd.single->typ==SINGLE_NODE); |
|---|
| 1300 | |
|---|
| 1301 | if (to.exists) { |
|---|
| 1302 | switch (to.full->typ) { |
|---|
| 1303 | case SINGLE_NODE: { |
|---|
| 1304 | SingleDictTree *left = to.single; |
|---|
| 1305 | |
|---|
| 1306 | gb_assert(left); |
|---|
| 1307 | |
|---|
| 1308 | if (toAdd.single->ch < to.single->ch) { |
|---|
| 1309 | toAdd.single->brother = to; |
|---|
| 1310 | return toAdd; |
|---|
| 1311 | } |
|---|
| 1312 | |
|---|
| 1313 | while (to.single->brother.exists) { |
|---|
| 1314 | if (toAdd.single->ch < to.single->brother.single->ch) { |
|---|
| 1315 | toAdd.single->brother = to.single->brother; |
|---|
| 1316 | to.single->brother = toAdd; |
|---|
| 1317 | |
|---|
| 1318 | tree.single = left; |
|---|
| 1319 | return tree; |
|---|
| 1320 | } |
|---|
| 1321 | to = to.single->brother; |
|---|
| 1322 | } |
|---|
| 1323 | |
|---|
| 1324 | to.single->brother = toAdd; |
|---|
| 1325 | tree.single = left; |
|---|
| 1326 | break; |
|---|
| 1327 | } |
|---|
| 1328 | case FULL_NODE: { |
|---|
| 1329 | unsigned_char ch = toAdd.single->ch; |
|---|
| 1330 | |
|---|
| 1331 | gb_assert(!to.full->son[ch].exists); |
|---|
| 1332 | gb_assert(to.full->count[ch]==0); // if this fails, count must be added & tested |
|---|
| 1333 | gb_assert(!toAdd.single->brother.exists); |
|---|
| 1334 | |
|---|
| 1335 | to.full->son[ch] = toAdd.single->son; |
|---|
| 1336 | to.full->count[ch] = toAdd.single->count; |
|---|
| 1337 | to.full->usedSons++; |
|---|
| 1338 | |
|---|
| 1339 | tree = to; |
|---|
| 1340 | |
|---|
| 1341 | gbm_free_mem(toAdd.single, sizeof(*(toAdd.single)), GBM_DICT_INDEX); |
|---|
| 1342 | (*memcount) -= sizeof(toAdd.single); |
|---|
| 1343 | |
|---|
| 1344 | break; |
|---|
| 1345 | } |
|---|
| 1346 | } |
|---|
| 1347 | } |
|---|
| 1348 | |
|---|
| 1349 | return tree; |
|---|
| 1350 | } |
|---|
| 1351 | |
|---|
| 1352 | static DictTree add_to_dtree(DictTree tree, cu_str text, long len, long *memcount) { |
|---|
| 1353 | /* adds the string 'text' (which has length 'len') to 'tree' |
|---|
| 1354 | * returns: new tree |
|---|
| 1355 | */ |
|---|
| 1356 | if (tree.exists) { |
|---|
| 1357 | switch (tree.full->typ) { |
|---|
| 1358 | case SINGLE_NODE: { |
|---|
| 1359 | SingleDictTree *t = tree.single; |
|---|
| 1360 | int count = 0; |
|---|
| 1361 | |
|---|
| 1362 | do { |
|---|
| 1363 | count++; |
|---|
| 1364 | if (t->ch==text[0]) { // we found an existing subtree |
|---|
| 1365 | if (len>1) { |
|---|
| 1366 | t->son = add_to_dtree(t->son, text+1, len-1, memcount); // add rest of text to subtree |
|---|
| 1367 | } |
|---|
| 1368 | else { |
|---|
| 1369 | gb_assert(len==1); |
|---|
| 1370 | gb_assert(!t->son.exists); |
|---|
| 1371 | t->count++; |
|---|
| 1372 | } |
|---|
| 1373 | |
|---|
| 1374 | return count>MAX_BROTHERS ? single2full_dtree(tree, memcount) : tree; |
|---|
| 1375 | } |
|---|
| 1376 | else if (t->ch > text[0]) { |
|---|
| 1377 | break; |
|---|
| 1378 | } |
|---|
| 1379 | } |
|---|
| 1380 | while ((t=t->brother.single)); |
|---|
| 1381 | |
|---|
| 1382 | tree = add_dtree_to_dtree(new_dtree(text, len, memcount), // otherwise we create a new subtree |
|---|
| 1383 | count>MAX_BROTHERS ? single2full_dtree(tree, memcount) : tree, |
|---|
| 1384 | memcount); |
|---|
| 1385 | break; |
|---|
| 1386 | } |
|---|
| 1387 | case FULL_NODE: { |
|---|
| 1388 | unsigned_char ch = text[0]; |
|---|
| 1389 | |
|---|
| 1390 | if (tree.full->son[ch].exists) { |
|---|
| 1391 | tree.full->son[ch] = add_to_dtree(tree.full->son[ch], text+1, len-1, memcount); |
|---|
| 1392 | } |
|---|
| 1393 | else { |
|---|
| 1394 | tree.full->son[ch] = new_dtree(text+1, len-1, memcount); |
|---|
| 1395 | if (!tree.full->son[ch].exists) { |
|---|
| 1396 | if (tree.full->count[ch]==0) tree.full->usedSons++; |
|---|
| 1397 | tree.full->count[ch]++; |
|---|
| 1398 | } |
|---|
| 1399 | else { |
|---|
| 1400 | tree.full->usedSons++; |
|---|
| 1401 | } |
|---|
| 1402 | } |
|---|
| 1403 | break; |
|---|
| 1404 | } |
|---|
| 1405 | } |
|---|
| 1406 | |
|---|
| 1407 | return tree; |
|---|
| 1408 | } |
|---|
| 1409 | |
|---|
| 1410 | return new_dtree(text, len, memcount); |
|---|
| 1411 | } |
|---|
| 1412 | |
|---|
| 1413 | static long calcCounts(DictTree tree) { |
|---|
| 1414 | long cnt = 0; |
|---|
| 1415 | |
|---|
| 1416 | gb_assert(tree.exists); |
|---|
| 1417 | |
|---|
| 1418 | switch (tree.full->typ) { |
|---|
| 1419 | case SINGLE_NODE: { |
|---|
| 1420 | while (tree.exists) { |
|---|
| 1421 | if (tree.single->son.exists) tree.single->count = calcCounts(tree.single->son); |
|---|
| 1422 | gb_assert(tree.single->count>0); |
|---|
| 1423 | cnt += tree.single->count; |
|---|
| 1424 | tree = tree.single->brother; |
|---|
| 1425 | } |
|---|
| 1426 | break; |
|---|
| 1427 | } |
|---|
| 1428 | case FULL_NODE: { |
|---|
| 1429 | int idx; |
|---|
| 1430 | |
|---|
| 1431 | for (idx=0; idx<256; idx++) { |
|---|
| 1432 | if (tree.full->son[idx].exists) { |
|---|
| 1433 | tree.full->count[idx] = calcCounts(tree.full->son[idx]); |
|---|
| 1434 | gb_assert(tree.full->count[idx]>0); |
|---|
| 1435 | } |
|---|
| 1436 | else { |
|---|
| 1437 | gb_assert(tree.full->count[idx]>=0); |
|---|
| 1438 | } |
|---|
| 1439 | cnt += tree.full->count[idx]; |
|---|
| 1440 | } |
|---|
| 1441 | break; |
|---|
| 1442 | } |
|---|
| 1443 | } |
|---|
| 1444 | |
|---|
| 1445 | return cnt; |
|---|
| 1446 | } |
|---|
| 1447 | |
|---|
| 1448 | static int count_dtree_leafs(DictTree tree, int deep, int *maxdeep) { |
|---|
| 1449 | // returns # of leafs and max. depth of tree |
|---|
| 1450 | int leafs = 0; |
|---|
| 1451 | |
|---|
| 1452 | gb_assert(tree.exists); |
|---|
| 1453 | |
|---|
| 1454 | if (++deep>*maxdeep) *maxdeep = deep; |
|---|
| 1455 | |
|---|
| 1456 | switch (tree.full->typ) { |
|---|
| 1457 | case SINGLE_NODE: { |
|---|
| 1458 | if (tree.single->son.exists) leafs += count_dtree_leafs(tree.single->son, deep, maxdeep); |
|---|
| 1459 | else leafs++; |
|---|
| 1460 | if (tree.single->brother.exists) leafs += count_dtree_leafs(tree.single->brother, deep, maxdeep); |
|---|
| 1461 | break; |
|---|
| 1462 | } |
|---|
| 1463 | case FULL_NODE: { |
|---|
| 1464 | int idx; |
|---|
| 1465 | |
|---|
| 1466 | for (idx=0; idx<256; idx++) { |
|---|
| 1467 | if (tree.full->son[idx].exists) leafs += count_dtree_leafs(tree.full->son[idx], deep, maxdeep); |
|---|
| 1468 | else if (tree.full->count[idx]) leafs++; |
|---|
| 1469 | } |
|---|
| 1470 | break; |
|---|
| 1471 | } |
|---|
| 1472 | } |
|---|
| 1473 | |
|---|
| 1474 | return leafs; |
|---|
| 1475 | } |
|---|
| 1476 | |
|---|
| 1477 | static int COUNT(DictTree tree) { |
|---|
| 1478 | // counts sum of # of occurrences of tree |
|---|
| 1479 | int cnt = 0; |
|---|
| 1480 | |
|---|
| 1481 | switch (tree.single->typ) { |
|---|
| 1482 | case SINGLE_NODE: { |
|---|
| 1483 | while (tree.exists) { |
|---|
| 1484 | cnt += tree.single->count; |
|---|
| 1485 | tree = tree.single->brother; |
|---|
| 1486 | } |
|---|
| 1487 | break; |
|---|
| 1488 | } |
|---|
| 1489 | case FULL_NODE: { |
|---|
| 1490 | int idx; |
|---|
| 1491 | |
|---|
| 1492 | for (idx=0; idx<256; idx++) cnt += tree.full->count[idx]; // LOOP_VECTORIZED =4[<10] =8|18 // 4x with 4.9.2 + 5.x; 8x(UNIT_TESTS=1) or 18x(UNIT_TESTS=0) with gcc 10.1 - 10.5 |
|---|
| 1493 | break; |
|---|
| 1494 | } |
|---|
| 1495 | } |
|---|
| 1496 | |
|---|
| 1497 | return cnt; |
|---|
| 1498 | } |
|---|
| 1499 | |
|---|
| 1500 | static DictTree removeSubsequentString(DictTree *tree_pntr, cu_str buffer, int len, int max_occur) { |
|---|
| 1501 | /* searches tree for 'buffer' (length='len') |
|---|
| 1502 | * |
|---|
| 1503 | * returns - rest below found string |
|---|
| 1504 | * (if found and if the # of occurrences of the string is less/equal than 'max_occur') |
|---|
| 1505 | * - NULp otherwise |
|---|
| 1506 | * |
|---|
| 1507 | * removes the whole found string from the tree (not only the rest!) |
|---|
| 1508 | */ |
|---|
| 1509 | DictTree tree = *tree_pntr, rest; |
|---|
| 1510 | static int restCount; |
|---|
| 1511 | |
|---|
| 1512 | rest.exists = NULp; |
|---|
| 1513 | |
|---|
| 1514 | gb_assert(tree.exists); |
|---|
| 1515 | gb_assert(len>0); |
|---|
| 1516 | |
|---|
| 1517 | switch (tree.full->typ) { |
|---|
| 1518 | case SINGLE_NODE: { |
|---|
| 1519 | while (tree.single->ch <= buffer[0]) { |
|---|
| 1520 | if (tree.single->ch == buffer[0]) { // found wanted character |
|---|
| 1521 | if (tree.single->son.exists) { |
|---|
| 1522 | if (len==1) { |
|---|
| 1523 | if (tree.single->count <= max_occur) { |
|---|
| 1524 | rest = tree.single->son; |
|---|
| 1525 | restCount = COUNT(rest); |
|---|
| 1526 | tree.single->son.exists = NULp; |
|---|
| 1527 | } |
|---|
| 1528 | } |
|---|
| 1529 | else { |
|---|
| 1530 | rest = removeSubsequentString(&tree.single->son, buffer+1, len-1, max_occur); |
|---|
| 1531 | } |
|---|
| 1532 | } |
|---|
| 1533 | |
|---|
| 1534 | if (rest.exists) { // the string was found |
|---|
| 1535 | tree.single->count -= restCount; |
|---|
| 1536 | gb_assert(tree.single->count >= 0); |
|---|
| 1537 | |
|---|
| 1538 | if (!tree.single->count) { // empty subtree -> delete myself |
|---|
| 1539 | DictTree brother = tree.single->brother; |
|---|
| 1540 | |
|---|
| 1541 | tree.single->brother.exists = NULp; // elsewise it would be freed by free_dtree |
|---|
| 1542 | free_dtree(tree); |
|---|
| 1543 | *tree_pntr = tree = brother; |
|---|
| 1544 | } |
|---|
| 1545 | } |
|---|
| 1546 | |
|---|
| 1547 | break; |
|---|
| 1548 | } |
|---|
| 1549 | |
|---|
| 1550 | tree_pntr = &(tree.single->brother); |
|---|
| 1551 | if (!(tree = tree.single->brother).exists) break; |
|---|
| 1552 | } |
|---|
| 1553 | |
|---|
| 1554 | break; |
|---|
| 1555 | } |
|---|
| 1556 | case FULL_NODE: { |
|---|
| 1557 | unsigned_char ch; |
|---|
| 1558 | |
|---|
| 1559 | if (tree.full->son[ch=buffer[0]].exists) { |
|---|
| 1560 | if (len==1) { |
|---|
| 1561 | if (tree.full->count[ch] <= max_occur) { |
|---|
| 1562 | rest = tree.full->son[ch]; |
|---|
| 1563 | restCount = COUNT(rest); |
|---|
| 1564 | tree.full->son[ch].exists = NULp; |
|---|
| 1565 | } |
|---|
| 1566 | } |
|---|
| 1567 | else { |
|---|
| 1568 | rest = removeSubsequentString(&tree.full->son[ch], buffer+1, len-1, max_occur); |
|---|
| 1569 | } |
|---|
| 1570 | |
|---|
| 1571 | if (rest.exists) { |
|---|
| 1572 | gb_assert(restCount>0); |
|---|
| 1573 | tree.full->count[ch] -= restCount; |
|---|
| 1574 | gb_assert(tree.full->count[ch]>=0); |
|---|
| 1575 | if (tree.full->count[ch]==0) { |
|---|
| 1576 | gb_assert(!tree.full->son[ch].exists); |
|---|
| 1577 | |
|---|
| 1578 | if (--tree.full->usedSons==0) { // last son deleted -> delete myself |
|---|
| 1579 | free_dtree(tree); |
|---|
| 1580 | tree.exists = NULp; |
|---|
| 1581 | *tree_pntr = tree; |
|---|
| 1582 | } |
|---|
| 1583 | } |
|---|
| 1584 | } |
|---|
| 1585 | } |
|---|
| 1586 | |
|---|
| 1587 | break; |
|---|
| 1588 | } |
|---|
| 1589 | } |
|---|
| 1590 | |
|---|
| 1591 | return rest; |
|---|
| 1592 | } |
|---|
| 1593 | |
|---|
| 1594 | static cu_str memstr(cu_str stringStart, int stringStartLen, cu_str inString, int inStringLen) { |
|---|
| 1595 | if (!inStringLen) return stringStart; // string of length zero is found everywhere |
|---|
| 1596 | |
|---|
| 1597 | while (stringStartLen) { |
|---|
| 1598 | cu_str found = (cu_str)memchr(stringStart, inString[0], stringStartLen); |
|---|
| 1599 | |
|---|
| 1600 | if (!found) break; |
|---|
| 1601 | |
|---|
| 1602 | stringStartLen -= found-stringStart; |
|---|
| 1603 | stringStart = found; |
|---|
| 1604 | |
|---|
| 1605 | if (stringStartLen<inStringLen) break; |
|---|
| 1606 | |
|---|
| 1607 | if (GB_MEMCMP(stringStart, inString, inStringLen)==0) return stringStart; |
|---|
| 1608 | |
|---|
| 1609 | stringStart++; |
|---|
| 1610 | stringStartLen--; |
|---|
| 1611 | } |
|---|
| 1612 | |
|---|
| 1613 | return NULp; |
|---|
| 1614 | } |
|---|
| 1615 | |
|---|
| 1616 | |
|---|
| 1617 | static int expandBranches(u_str buffer, int deep, int minwordlen, int maxdeep, DictTree tree, DictTree root, int max_percent) { |
|---|
| 1618 | /* expands all branches in 'tree' |
|---|
| 1619 | * |
|---|
| 1620 | * this is done by searching every of these branches in 'root' and moving any subsequent parts from there to 'tree' |
|---|
| 1621 | * (this is only done, if the # of occurrences of the found part does not exceed the # of occurrences of 'tree' more than 'max_percent' percent) |
|---|
| 1622 | * |
|---|
| 1623 | * 'buffer' strings are rebuild here while descending the tree (length of buffer==MAX_WORD_LEN) |
|---|
| 1624 | * 'deep' recursion level |
|---|
| 1625 | * 'maxdeep' maximum recursion level |
|---|
| 1626 | * 'minwordlen' is the length of the words to search (usually equal to MIN_WORD_LEN-1) |
|---|
| 1627 | * |
|---|
| 1628 | * returns the # of occurrences which were added to 'tree' |
|---|
| 1629 | */ |
|---|
| 1630 | int expand = 0; // calculate count-sum of added subsequent parts |
|---|
| 1631 | |
|---|
| 1632 | gb_assert(tree.exists); |
|---|
| 1633 | |
|---|
| 1634 | if (deep<maxdeep) { |
|---|
| 1635 | switch (tree.full->typ) { |
|---|
| 1636 | case SINGLE_NODE: { |
|---|
| 1637 | while (tree.exists) { |
|---|
| 1638 | buffer[deep] = tree.single->ch; |
|---|
| 1639 | |
|---|
| 1640 | if (!tree.single->son.exists) { |
|---|
| 1641 | DictTree rest; |
|---|
| 1642 | u_str buf = buffer+1; |
|---|
| 1643 | int len = deep; |
|---|
| 1644 | |
|---|
| 1645 | if (len>minwordlen) { // do not search more than MIN_WORD_LEN-1 chars |
|---|
| 1646 | buf += len-minwordlen; |
|---|
| 1647 | len = minwordlen; |
|---|
| 1648 | } |
|---|
| 1649 | |
|---|
| 1650 | if (len==minwordlen) { |
|---|
| 1651 | cu_str self = memstr(buffer, deep+1, buf, len); |
|---|
| 1652 | |
|---|
| 1653 | gb_assert(self); |
|---|
| 1654 | if (self==buf) rest = removeSubsequentString(&root, buf, len, ((100+max_percent)*tree.single->count)/100); |
|---|
| 1655 | else rest.exists = NULp; |
|---|
| 1656 | } |
|---|
| 1657 | else { |
|---|
| 1658 | rest.exists = NULp; |
|---|
| 1659 | } |
|---|
| 1660 | |
|---|
| 1661 | if (rest.exists) { |
|---|
| 1662 | int cnt = COUNT(rest); |
|---|
| 1663 | |
|---|
| 1664 | tree.single->son = rest; |
|---|
| 1665 | tree.single->count += cnt; |
|---|
| 1666 | expand += cnt; |
|---|
| 1667 | #ifdef DUMP_EXPAND |
|---|
| 1668 | #define DUMP_MORE 1 |
|---|
| 1669 | printf("expanding '%s'", lstr(buffer, deep+1+DUMP_MORE)); |
|---|
| 1670 | printf(" (searching for '%s') -> found %i nodes\n", lstr(buf, len+DUMP_MORE), cnt); |
|---|
| 1671 | #endif |
|---|
| 1672 | } |
|---|
| 1673 | } |
|---|
| 1674 | |
|---|
| 1675 | if (tree.single->son.exists) { |
|---|
| 1676 | int added = expandBranches(buffer, deep+1, minwordlen, maxdeep, tree.single->son, root, max_percent); |
|---|
| 1677 | |
|---|
| 1678 | expand += added; |
|---|
| 1679 | tree.single->count += added; |
|---|
| 1680 | } |
|---|
| 1681 | |
|---|
| 1682 | tree = tree.single->brother; |
|---|
| 1683 | } |
|---|
| 1684 | |
|---|
| 1685 | break; |
|---|
| 1686 | } |
|---|
| 1687 | case FULL_NODE: { |
|---|
| 1688 | int idx; |
|---|
| 1689 | |
|---|
| 1690 | for (idx=0; idx<256; idx++) { |
|---|
| 1691 | buffer[deep] = idx; |
|---|
| 1692 | |
|---|
| 1693 | if (!tree.full->son[idx].exists && tree.full->count[idx]) { // leaf |
|---|
| 1694 | DictTree rest; |
|---|
| 1695 | u_str buf = buffer+1; |
|---|
| 1696 | int len = deep; |
|---|
| 1697 | |
|---|
| 1698 | if (len>minwordlen) { // do not search more than MIN_WORD_LEN-1 chars |
|---|
| 1699 | buf += len-minwordlen; |
|---|
| 1700 | len = minwordlen; |
|---|
| 1701 | } |
|---|
| 1702 | |
|---|
| 1703 | if (len==minwordlen) { |
|---|
| 1704 | cu_str self = memstr(buffer, deep+1, buf, len); |
|---|
| 1705 | |
|---|
| 1706 | gb_assert(self); |
|---|
| 1707 | if (self==buf) |
|---|
| 1708 | rest = removeSubsequentString(&root, buf, len, ((100+max_percent)*tree.full->count[idx])/100); |
|---|
| 1709 | else |
|---|
| 1710 | rest.exists = NULp; |
|---|
| 1711 | } |
|---|
| 1712 | else { |
|---|
| 1713 | rest.exists = NULp; |
|---|
| 1714 | } |
|---|
| 1715 | |
|---|
| 1716 | if (rest.exists) { // substring found! |
|---|
| 1717 | int cnt = COUNT(rest); |
|---|
| 1718 | |
|---|
| 1719 | if (tree.full->count[idx]==0) tree.full->usedSons++; |
|---|
| 1720 | tree.full->son[idx] = rest; |
|---|
| 1721 | tree.full->count[idx] += cnt; |
|---|
| 1722 | |
|---|
| 1723 | expand += cnt; |
|---|
| 1724 | #ifdef DUMP_EXPAND |
|---|
| 1725 | printf("expanding '%s'", lstr(buffer, deep+1+DUMP_MORE)); |
|---|
| 1726 | printf(" (searching for '%s') -> found %i nodes\n", lstr(buf, len+DUMP_MORE), cnt); |
|---|
| 1727 | #endif |
|---|
| 1728 | } |
|---|
| 1729 | } |
|---|
| 1730 | |
|---|
| 1731 | if (tree.full->son[idx].exists) { |
|---|
| 1732 | int added = expandBranches(buffer, deep+1, minwordlen, maxdeep, tree.full->son[idx], root, max_percent); |
|---|
| 1733 | |
|---|
| 1734 | expand += added; |
|---|
| 1735 | tree.full->count[idx] += added; |
|---|
| 1736 | } |
|---|
| 1737 | } |
|---|
| 1738 | |
|---|
| 1739 | break; |
|---|
| 1740 | } |
|---|
| 1741 | } |
|---|
| 1742 | } |
|---|
| 1743 | |
|---|
| 1744 | return expand; |
|---|
| 1745 | } |
|---|
| 1746 | |
|---|
| 1747 | static DictTree build_dict_tree(O_gbdByKey *gbk, long maxmem, long maxdeep, size_t minwordlen, long *data_sum) { |
|---|
| 1748 | /* builds a tree of the most used words |
|---|
| 1749 | * |
|---|
| 1750 | * 'maxmem' is the amount of memory that will be allocated |
|---|
| 1751 | * 'maxdeep' is the maximum length of the _returned_ words |
|---|
| 1752 | * 'minwordlen' is the minimum length a word needs to get into the tree |
|---|
| 1753 | * this is used in the first pass as maximum tree depth |
|---|
| 1754 | * 'data_sum' will be set to the overall-size of data of which the tree was built |
|---|
| 1755 | */ |
|---|
| 1756 | DictTree tree; |
|---|
| 1757 | long memcount = 0; |
|---|
| 1758 | long leafs = 0; |
|---|
| 1759 | |
|---|
| 1760 | *data_sum = 0; |
|---|
| 1761 | |
|---|
| 1762 | { |
|---|
| 1763 | int cnt; |
|---|
| 1764 | long lowmem = (maxmem*9)/10; |
|---|
| 1765 | int cut_count = 1; |
|---|
| 1766 | |
|---|
| 1767 | // Build 8-level-deep tree of all existing words |
|---|
| 1768 | |
|---|
| 1769 | tree.exists = NULp; // empty tree |
|---|
| 1770 | |
|---|
| 1771 | for (cnt=0; cnt<gbk->cnt; cnt++) { |
|---|
| 1772 | GBDATA *gbd = gbk->gbds[cnt]; |
|---|
| 1773 | |
|---|
| 1774 | if (COMPRESSIBLE(gbd->type())) { |
|---|
| 1775 | size_t size; |
|---|
| 1776 | cu_str data = get_data_n_size(gbd, &size); |
|---|
| 1777 | cu_str lastWord; |
|---|
| 1778 | |
|---|
| 1779 | if (gbd->is_a_string()) size--; |
|---|
| 1780 | if (size<minwordlen) continue; |
|---|
| 1781 | |
|---|
| 1782 | *data_sum += size; |
|---|
| 1783 | lastWord = data+size-minwordlen; |
|---|
| 1784 | |
|---|
| 1785 | #ifdef SELECT_WORDS |
|---|
| 1786 | if (strnstr(data, size, SELECTED_WORDS)) // test some words only |
|---|
| 1787 | #endif |
|---|
| 1788 | { |
|---|
| 1789 | |
|---|
| 1790 | for (; data<=lastWord; data++) { |
|---|
| 1791 | tree = add_to_dtree(tree, data, minwordlen, &memcount); |
|---|
| 1792 | |
|---|
| 1793 | while (memcount>maxmem) { |
|---|
| 1794 | leafs = 0; |
|---|
| 1795 | tree = cut_dtree(tree, cut_count, &memcount, &leafs); |
|---|
| 1796 | if (memcount<=lowmem) break; |
|---|
| 1797 | cut_count++; |
|---|
| 1798 | } |
|---|
| 1799 | } |
|---|
| 1800 | } |
|---|
| 1801 | } |
|---|
| 1802 | } |
|---|
| 1803 | } |
|---|
| 1804 | |
|---|
| 1805 | { |
|---|
| 1806 | int cutoff = 1; |
|---|
| 1807 | |
|---|
| 1808 | leafs = 0; |
|---|
| 1809 | tree = cut_dtree(tree, cutoff, &memcount, &leafs); // cut all single elements |
|---|
| 1810 | test_dtree(tree); |
|---|
| 1811 | |
|---|
| 1812 | #if defined(DEBUG) |
|---|
| 1813 | if (tree.exists) { |
|---|
| 1814 | int maxdeep2 = 0; |
|---|
| 1815 | long counted = count_dtree_leafs(tree, 0, &maxdeep2); |
|---|
| 1816 | gb_assert(leafs == counted); |
|---|
| 1817 | } |
|---|
| 1818 | #endif // DEBUG |
|---|
| 1819 | |
|---|
| 1820 | // avoid directory overflow (max. 18bit) |
|---|
| 1821 | while (leafs >= MAX_LONG_INDEX) { |
|---|
| 1822 | leafs = 0; |
|---|
| 1823 | ++cutoff; |
|---|
| 1824 | #if defined(DEBUG) |
|---|
| 1825 | printf("Directory overflow (%li) -- reducing size (cutoff = %i)\n", leafs, cutoff); |
|---|
| 1826 | #endif // DEBUG |
|---|
| 1827 | tree = cut_dtree(tree, cutoff, &memcount, &leafs); |
|---|
| 1828 | } |
|---|
| 1829 | } |
|---|
| 1830 | #ifdef DUMP_TREE |
|---|
| 1831 | printf("----------------------- tree with short branches:\n"); |
|---|
| 1832 | dump_dtree(0, tree); |
|---|
| 1833 | printf("---------------------------\n"); |
|---|
| 1834 | #endif |
|---|
| 1835 | |
|---|
| 1836 | // Try to create longer branches |
|---|
| 1837 | |
|---|
| 1838 | if (tree.exists) { |
|---|
| 1839 | int add_count; |
|---|
| 1840 | u_str buffer = (u_str)gbm_get_mem(maxdeep, GBM_DICT_INDEX); |
|---|
| 1841 | int max_differ; |
|---|
| 1842 | long dummy; |
|---|
| 1843 | |
|---|
| 1844 | if (tree.full->typ != FULL_NODE) tree = single2full_dtree(tree, &memcount); // ensure root is FULL_NODE |
|---|
| 1845 | |
|---|
| 1846 | test_dtree(tree); |
|---|
| 1847 | calcCounts(tree); // calculate counters of inner nodes |
|---|
| 1848 | testCounts(tree); |
|---|
| 1849 | |
|---|
| 1850 | for (max_differ=0; max_differ<=MAX_DIFFER; max_differ+=INCR_DIFFER) { // percent of allowed difference for concatenating tree branches |
|---|
| 1851 | do { |
|---|
| 1852 | int idx; |
|---|
| 1853 | add_count = 0; |
|---|
| 1854 | |
|---|
| 1855 | for (idx=0; idx<256; idx++) { |
|---|
| 1856 | if (tree.full->son[idx].exists) { |
|---|
| 1857 | int added; |
|---|
| 1858 | |
|---|
| 1859 | buffer[0] = idx; |
|---|
| 1860 | added = expandBranches(buffer, 1, minwordlen-1, maxdeep, tree.full->son[idx], tree, max_differ); |
|---|
| 1861 | tree.full->count[idx] += added; |
|---|
| 1862 | add_count += added; |
|---|
| 1863 | } |
|---|
| 1864 | } |
|---|
| 1865 | } |
|---|
| 1866 | while (add_count); |
|---|
| 1867 | } |
|---|
| 1868 | |
|---|
| 1869 | gbm_free_mem(buffer, maxdeep, GBM_DICT_INDEX); |
|---|
| 1870 | |
|---|
| 1871 | tree = cut_useless_words(tree, 0, &dummy); |
|---|
| 1872 | } |
|---|
| 1873 | |
|---|
| 1874 | #ifdef DUMP_TREE |
|---|
| 1875 | printf("----------------------- tree with expanded branches:\n"); |
|---|
| 1876 | dump_dtree(0, tree); |
|---|
| 1877 | printf("-----------------------\n"); |
|---|
| 1878 | #endif |
|---|
| 1879 | testCounts(tree); |
|---|
| 1880 | |
|---|
| 1881 | return tree; |
|---|
| 1882 | } |
|---|
| 1883 | |
|---|
| 1884 | static DictTree remove_word_from_dtree(DictTree tree, cu_str wordStart, int wordLen, u_str resultBuffer, int *resultLen, long *resultFrequency, long *removed) { |
|---|
| 1885 | /* searches 'tree' for a word starting with 'wordStart' an removes it from the tree |
|---|
| 1886 | * if there are more than one possibilities, the returned word will be the one with the most occurrences |
|---|
| 1887 | * if there was no possibility -> resultLen==0, tree unchanged |
|---|
| 1888 | * otherwise: resultBuffer contains the word, returns new tree with word removed |
|---|
| 1889 | */ |
|---|
| 1890 | long removed_single = 0; |
|---|
| 1891 | gb_assert(tree.exists); |
|---|
| 1892 | *removed = 0; |
|---|
| 1893 | |
|---|
| 1894 | if (wordLen) { // search wanted path into tree |
|---|
| 1895 | switch (tree.full->typ) { |
|---|
| 1896 | case SINGLE_NODE: { |
|---|
| 1897 | if (tree.single->ch==*wordStart) { |
|---|
| 1898 | *resultBuffer = *wordStart; |
|---|
| 1899 | |
|---|
| 1900 | if (tree.single->son.exists) { |
|---|
| 1901 | gb_assert(tree.single->count>0); |
|---|
| 1902 | tree.single->son = remove_word_from_dtree(tree.single->son, wordStart+1, wordLen-1, |
|---|
| 1903 | resultBuffer+1, resultLen, resultFrequency, |
|---|
| 1904 | &removed_single); |
|---|
| 1905 | if (*resultLen) { // word removed |
|---|
| 1906 | gb_assert(tree.single->count>=removed_single); |
|---|
| 1907 | tree.single->count -= removed_single; |
|---|
| 1908 | *removed += removed_single; |
|---|
| 1909 | (*resultLen)++; |
|---|
| 1910 | } |
|---|
| 1911 | } |
|---|
| 1912 | else { |
|---|
| 1913 | *resultLen = wordLen==1; // if wordLen==1 -> fully overlapping word found |
|---|
| 1914 | *resultFrequency = tree.single->count; |
|---|
| 1915 | } |
|---|
| 1916 | |
|---|
| 1917 | if (!tree.single->son.exists && *resultLen) { // if no son and a word was found -> remove branch |
|---|
| 1918 | DictTree brother = tree.single->brother; |
|---|
| 1919 | |
|---|
| 1920 | *removed += tree.single->count; |
|---|
| 1921 | gbm_free_mem(tree.single, sizeof(*tree.single), GBM_DICT_INDEX); |
|---|
| 1922 | |
|---|
| 1923 | if (brother.exists) tree = brother; |
|---|
| 1924 | else tree.exists = NULp; |
|---|
| 1925 | } |
|---|
| 1926 | } |
|---|
| 1927 | else if (tree.single->ch < *wordStart && tree.single->brother.exists) { |
|---|
| 1928 | tree.single->brother = remove_word_from_dtree(tree.single->brother, wordStart, wordLen, |
|---|
| 1929 | resultBuffer, resultLen, resultFrequency, |
|---|
| 1930 | &removed_single); |
|---|
| 1931 | if (*resultLen) *removed += removed_single; |
|---|
| 1932 | } |
|---|
| 1933 | else { |
|---|
| 1934 | *resultLen = 0; // not found |
|---|
| 1935 | } |
|---|
| 1936 | |
|---|
| 1937 | break; |
|---|
| 1938 | } |
|---|
| 1939 | case FULL_NODE: { |
|---|
| 1940 | unsigned_char ch = *wordStart; |
|---|
| 1941 | *resultBuffer = ch; |
|---|
| 1942 | |
|---|
| 1943 | if (tree.full->son[ch].exists) { |
|---|
| 1944 | tree.full->son[ch] = remove_word_from_dtree(tree.full->son[ch], wordStart+1, wordLen-1, |
|---|
| 1945 | resultBuffer+1, resultLen, resultFrequency, |
|---|
| 1946 | &removed_single); |
|---|
| 1947 | if (*resultLen) { |
|---|
| 1948 | if (tree.full->son[ch].exists) { // another son? |
|---|
| 1949 | tree.full->count[ch] -= removed_single; |
|---|
| 1950 | } |
|---|
| 1951 | else { // last son -> remove whole branch |
|---|
| 1952 | removed_single = tree.full->count[ch]; |
|---|
| 1953 | tree.full->count[ch] = 0; |
|---|
| 1954 | tree.full->usedSons--; |
|---|
| 1955 | } |
|---|
| 1956 | |
|---|
| 1957 | *removed += removed_single; |
|---|
| 1958 | (*resultLen)++; |
|---|
| 1959 | } |
|---|
| 1960 | } |
|---|
| 1961 | else if (tree.full->count[ch]) { |
|---|
| 1962 | *resultLen = (wordLen==1); |
|---|
| 1963 | |
|---|
| 1964 | if (*resultLen) { |
|---|
| 1965 | *removed += removed_single = *resultFrequency = tree.full->count[ch]; |
|---|
| 1966 | tree.full->count[ch] = 0; |
|---|
| 1967 | tree.full->usedSons--; |
|---|
| 1968 | } |
|---|
| 1969 | } |
|---|
| 1970 | else { |
|---|
| 1971 | *resultLen = 0; // not found |
|---|
| 1972 | } |
|---|
| 1973 | |
|---|
| 1974 | if (!tree.full->usedSons) { |
|---|
| 1975 | free_dtree(tree); |
|---|
| 1976 | tree.exists = NULp; |
|---|
| 1977 | } |
|---|
| 1978 | |
|---|
| 1979 | break; |
|---|
| 1980 | } |
|---|
| 1981 | } |
|---|
| 1982 | } |
|---|
| 1983 | else { // take any word |
|---|
| 1984 | switch (tree.full->typ) { |
|---|
| 1985 | case SINGLE_NODE: { |
|---|
| 1986 | *resultBuffer = tree.single->ch; |
|---|
| 1987 | gb_assert(tree.single->count>0); |
|---|
| 1988 | |
|---|
| 1989 | if (tree.single->son.exists) { |
|---|
| 1990 | tree.single->son = remove_word_from_dtree(tree.single->son, wordStart, wordLen, |
|---|
| 1991 | resultBuffer+1, resultLen, resultFrequency, |
|---|
| 1992 | &removed_single); |
|---|
| 1993 | gb_assert(*resultLen); |
|---|
| 1994 | (*resultLen)++; |
|---|
| 1995 | } |
|---|
| 1996 | else { |
|---|
| 1997 | *resultLen = 1; |
|---|
| 1998 | *resultFrequency = tree.single->count; |
|---|
| 1999 | removed_single = tree.single->count; |
|---|
| 2000 | } |
|---|
| 2001 | |
|---|
| 2002 | gb_assert(*resultFrequency>0); |
|---|
| 2003 | |
|---|
| 2004 | if (tree.single->son.exists) { |
|---|
| 2005 | gb_assert(tree.single->count>=removed_single); |
|---|
| 2006 | tree.single->count -= removed_single; |
|---|
| 2007 | *removed += removed_single; |
|---|
| 2008 | } |
|---|
| 2009 | else { |
|---|
| 2010 | DictTree brother = tree.single->brother; |
|---|
| 2011 | |
|---|
| 2012 | *removed += tree.single->count; |
|---|
| 2013 | gbm_free_mem(tree.single, sizeof(*tree.single), GBM_DICT_INDEX); |
|---|
| 2014 | |
|---|
| 2015 | if (brother.exists) tree = brother; |
|---|
| 2016 | else tree.exists = NULp; |
|---|
| 2017 | } |
|---|
| 2018 | |
|---|
| 2019 | break; |
|---|
| 2020 | } |
|---|
| 2021 | case FULL_NODE: { |
|---|
| 2022 | int idx; |
|---|
| 2023 | |
|---|
| 2024 | for (idx=0; idx<256; idx++) { |
|---|
| 2025 | if (tree.full->son[idx].exists) { |
|---|
| 2026 | *resultBuffer = idx; |
|---|
| 2027 | tree.full->son[idx] = remove_word_from_dtree(tree.full->son[idx], wordStart, wordLen, |
|---|
| 2028 | resultBuffer+1, resultLen, resultFrequency, |
|---|
| 2029 | &removed_single); |
|---|
| 2030 | gb_assert(*resultLen); |
|---|
| 2031 | (*resultLen)++; |
|---|
| 2032 | |
|---|
| 2033 | if (!tree.full->son[idx].exists) { // son branch removed -> zero count |
|---|
| 2034 | removed_single = tree.full->count[idx]; |
|---|
| 2035 | tree.full->count[idx] = 0; |
|---|
| 2036 | tree.full->usedSons--; |
|---|
| 2037 | } |
|---|
| 2038 | else { |
|---|
| 2039 | tree.full->count[idx] -= removed_single; |
|---|
| 2040 | gb_assert(tree.full->count[idx]>0); |
|---|
| 2041 | } |
|---|
| 2042 | |
|---|
| 2043 | break; |
|---|
| 2044 | } |
|---|
| 2045 | else if (tree.full->count[idx]) { |
|---|
| 2046 | *resultBuffer = idx; |
|---|
| 2047 | *resultLen = 1; |
|---|
| 2048 | *resultFrequency = tree.full->count[idx]; |
|---|
| 2049 | removed_single = tree.full->count[idx]; |
|---|
| 2050 | tree.full->count[idx] = 0; |
|---|
| 2051 | tree.full->usedSons--; |
|---|
| 2052 | break; |
|---|
| 2053 | } |
|---|
| 2054 | } |
|---|
| 2055 | |
|---|
| 2056 | gb_assert(idx<256); // gb_assert break was used to exit loop (== node had a son) |
|---|
| 2057 | |
|---|
| 2058 | *removed += removed_single; |
|---|
| 2059 | |
|---|
| 2060 | if (!tree.full->usedSons) { |
|---|
| 2061 | free_dtree(tree); |
|---|
| 2062 | tree.exists = NULp; |
|---|
| 2063 | } |
|---|
| 2064 | |
|---|
| 2065 | break; |
|---|
| 2066 | } |
|---|
| 2067 | } |
|---|
| 2068 | } |
|---|
| 2069 | |
|---|
| 2070 | #ifdef DEBUG |
|---|
| 2071 | if (*resultLen) { |
|---|
| 2072 | gb_assert(*resultLen>0); |
|---|
| 2073 | gb_assert(*resultFrequency>0); |
|---|
| 2074 | gb_assert(*resultLen>=wordLen); |
|---|
| 2075 | } |
|---|
| 2076 | #endif |
|---|
| 2077 | |
|---|
| 2078 | return tree; |
|---|
| 2079 | } |
|---|
| 2080 | |
|---|
| 2081 | #define cmp(i1, i2) (heap2[i1]-heap2[i2]) |
|---|
| 2082 | #define swap(i1, i2) do \ |
|---|
| 2083 | { \ |
|---|
| 2084 | int s = heap[i1]; \ |
|---|
| 2085 | heap[i1] = heap[i2]; \ |
|---|
| 2086 | heap[i2] = s; \ |
|---|
| 2087 | \ |
|---|
| 2088 | s = heap2[i1]; \ |
|---|
| 2089 | heap2[i1] = heap2[i2]; \ |
|---|
| 2090 | heap2[i2] = s; \ |
|---|
| 2091 | } \ |
|---|
| 2092 | while (0) |
|---|
| 2093 | |
|---|
| 2094 | static void downheap(int *heap, int *heap2, int me, int num) { |
|---|
| 2095 | int lson = me*2; |
|---|
| 2096 | int rson = lson+1; |
|---|
| 2097 | |
|---|
| 2098 | gb_assert(me>=1); |
|---|
| 2099 | if (lson>num) return; |
|---|
| 2100 | |
|---|
| 2101 | if (cmp(lson, me)<0) { // left son smaller than me? (we sort in descending order!!!) |
|---|
| 2102 | if (rson<=num && cmp(lson, rson)>0) { // right son smaller than left son? |
|---|
| 2103 | swap(me, rson); |
|---|
| 2104 | downheap(heap, heap2, rson, num); |
|---|
| 2105 | } |
|---|
| 2106 | else { |
|---|
| 2107 | swap(me, lson); |
|---|
| 2108 | downheap(heap, heap2, lson, num); |
|---|
| 2109 | } |
|---|
| 2110 | } |
|---|
| 2111 | else if (rson<=num && cmp(me, rson)>0) { // right son smaller than me? |
|---|
| 2112 | swap(me, rson); |
|---|
| 2113 | downheap(heap, heap2, rson, num); |
|---|
| 2114 | } |
|---|
| 2115 | } |
|---|
| 2116 | |
|---|
| 2117 | #undef cmp |
|---|
| 2118 | #undef swap |
|---|
| 2119 | |
|---|
| 2120 | |
|---|
| 2121 | |
|---|
| 2122 | #define cmp(i1, i2) GB_MEMCMP(dict->text+dict->offsets[heap[i1]], dict->text+dict->offsets[heap[i2]], dict->textlen) |
|---|
| 2123 | #define swap(i1, i2) do { int s = heap[i1]; heap[i1] = heap[i2]; heap[i2] = s; } while (0) |
|---|
| 2124 | |
|---|
| 2125 | static void downheap2(int *heap, GB_DICTIONARY *dict, int me, int num) { |
|---|
| 2126 | int lson = me*2; |
|---|
| 2127 | int rson = lson+1; |
|---|
| 2128 | |
|---|
| 2129 | gb_assert(me>=1); |
|---|
| 2130 | if (lson>num) return; |
|---|
| 2131 | |
|---|
| 2132 | if (cmp(lson, me)>0) { // left son bigger than me? |
|---|
| 2133 | if (rson<=num && cmp(lson, rson)<0) { // right son bigger than left son? |
|---|
| 2134 | swap(me, rson); |
|---|
| 2135 | downheap2(heap, dict, rson, num); |
|---|
| 2136 | } |
|---|
| 2137 | else { |
|---|
| 2138 | swap(me, lson); |
|---|
| 2139 | downheap2(heap, dict, lson, num); |
|---|
| 2140 | } |
|---|
| 2141 | } |
|---|
| 2142 | else if (rson<=num && cmp(me, rson)<0) { // right son bigger than me? |
|---|
| 2143 | swap(me, rson); |
|---|
| 2144 | downheap2(heap, dict, rson, num); |
|---|
| 2145 | } |
|---|
| 2146 | } |
|---|
| 2147 | |
|---|
| 2148 | #undef cmp |
|---|
| 2149 | #undef swap |
|---|
| 2150 | |
|---|
| 2151 | static void sort_dict_offsets(GB_DICTIONARY *dict) { |
|---|
| 2152 | /* 1. sorts the 'dict->offsets' by frequency |
|---|
| 2153 | * (frequency of each offset is stored in the 'dict->resort' with the same index) |
|---|
| 2154 | * 2. initializes & sorts 'dict->resort' in alphabetic order |
|---|
| 2155 | */ |
|---|
| 2156 | int i; |
|---|
| 2157 | int num = dict->words; |
|---|
| 2158 | int *heap = dict->offsets-1; |
|---|
| 2159 | int *heap2 = dict->resort-1; |
|---|
| 2160 | |
|---|
| 2161 | // sort offsets |
|---|
| 2162 | |
|---|
| 2163 | for (i=num/2; i>=1; i--) downheap(heap, heap2, i, num); // make heap |
|---|
| 2164 | |
|---|
| 2165 | while (num>1) { // sort heap |
|---|
| 2166 | int big = heap[1]; |
|---|
| 2167 | int big2 = heap2[1]; |
|---|
| 2168 | |
|---|
| 2169 | heap[1] = heap[num]; |
|---|
| 2170 | heap2[1] = heap2[num]; |
|---|
| 2171 | |
|---|
| 2172 | downheap(heap, heap2, 1, num-1); |
|---|
| 2173 | |
|---|
| 2174 | heap[num] = big; |
|---|
| 2175 | heap2[num] = big2; |
|---|
| 2176 | |
|---|
| 2177 | num--; |
|---|
| 2178 | } |
|---|
| 2179 | |
|---|
| 2180 | // initialize dict->resort |
|---|
| 2181 | |
|---|
| 2182 | for (i=0, num=dict->words; i<num; i++) dict->resort[i] = i; // LOOP_VECTORIZED |
|---|
| 2183 | |
|---|
| 2184 | // sort dictionary alphabetically |
|---|
| 2185 | |
|---|
| 2186 | for (i=num/2; i>=1; i--) downheap2(heap2, dict, i, num); // make heap |
|---|
| 2187 | |
|---|
| 2188 | while (num>1) { |
|---|
| 2189 | int big = heap2[1]; |
|---|
| 2190 | |
|---|
| 2191 | heap2[1] = heap2[num]; |
|---|
| 2192 | downheap2(heap2, dict, 1, num-1); |
|---|
| 2193 | heap2[num] = big; |
|---|
| 2194 | num--; |
|---|
| 2195 | } |
|---|
| 2196 | } |
|---|
| 2197 | |
|---|
| 2198 | // Warning dictionary is not in network byte order !!!! |
|---|
| 2199 | static GB_DICTIONARY *gb_create_dictionary(O_gbdByKey *gbk, long maxmem) { |
|---|
| 2200 | long data_sum; |
|---|
| 2201 | DictTree tree = build_dict_tree(gbk, maxmem, MAX_WORD_LEN, MIN_WORD_LEN, &data_sum); |
|---|
| 2202 | |
|---|
| 2203 | if (tree.exists) { |
|---|
| 2204 | GB_DICTIONARY *dict = (GB_DICTIONARY*)gbm_get_mem(sizeof(*dict), GBM_DICT_INDEX); |
|---|
| 2205 | int maxdeep = 0; |
|---|
| 2206 | int words = count_dtree_leafs(tree, 0, &maxdeep); |
|---|
| 2207 | u_str word; |
|---|
| 2208 | |
|---|
| 2209 | int wordLen; |
|---|
| 2210 | long wordFrequency; |
|---|
| 2211 | int offset = 0; // next free position in dict->text |
|---|
| 2212 | int overlap = 0; // # of bytes overlapping with last word |
|---|
| 2213 | u_str buffer; |
|---|
| 2214 | long dummy; |
|---|
| 2215 | #if defined(DEBUG) |
|---|
| 2216 | long word_sum = 0; |
|---|
| 2217 | long overlap_sum = 0; |
|---|
| 2218 | long max_overlap = 0; |
|---|
| 2219 | #endif |
|---|
| 2220 | |
|---|
| 2221 | // reduce tree as long as it has to many leafs (>MAX_LONG_INDEX) |
|---|
| 2222 | while (words >= MAX_LONG_INDEX) { |
|---|
| 2223 | |
|---|
| 2224 | words = count_dtree_leafs(tree, 0, &maxdeep); |
|---|
| 2225 | } |
|---|
| 2226 | |
|---|
| 2227 | buffer = (u_str)gbm_get_mem(maxdeep, GBM_DICT_INDEX); |
|---|
| 2228 | |
|---|
| 2229 | calcCounts(tree); |
|---|
| 2230 | testCounts(tree); |
|---|
| 2231 | |
|---|
| 2232 | #if DEBUG |
|---|
| 2233 | printf(" examined data was %li bytes\n", data_sum); |
|---|
| 2234 | printf(" tree contains %i words *** maximum tree depth = %i\n", words, maxdeep); |
|---|
| 2235 | #endif |
|---|
| 2236 | |
|---|
| 2237 | dict->words = 0; |
|---|
| 2238 | dict->textlen = DICT_STRING_INCR; |
|---|
| 2239 | |
|---|
| 2240 | dict->text = (u_str)gbm_get_mem(DICT_STRING_INCR, GBM_DICT_INDEX); |
|---|
| 2241 | dict->offsets = (GB_NINT*)gbm_get_mem(sizeof(*(dict->offsets))*words, GBM_DICT_INDEX); |
|---|
| 2242 | dict->resort = (GB_NINT*)gbm_get_mem(sizeof(*(dict->resort))*words, GBM_DICT_INDEX); |
|---|
| 2243 | |
|---|
| 2244 | memset(buffer, '*', maxdeep); |
|---|
| 2245 | tree = remove_word_from_dtree(tree, NULp, 0, buffer, &wordLen, &wordFrequency, &dummy); |
|---|
| 2246 | testCounts(tree); |
|---|
| 2247 | |
|---|
| 2248 | while (1) { |
|---|
| 2249 | int nextWordLen = 0; |
|---|
| 2250 | int len; |
|---|
| 2251 | |
|---|
| 2252 | #if DUMP_COMPRESSION_TEST>=4 |
|---|
| 2253 | printf("word='%s' (occur=%li overlap=%i)\n", lstr(buffer, wordLen), wordFrequency, overlap); |
|---|
| 2254 | #endif |
|---|
| 2255 | |
|---|
| 2256 | #if defined(DEBUG) |
|---|
| 2257 | overlap_sum += overlap; |
|---|
| 2258 | if (overlap>max_overlap) max_overlap = overlap; |
|---|
| 2259 | word_sum += wordLen; |
|---|
| 2260 | #endif |
|---|
| 2261 | |
|---|
| 2262 | if (offset-overlap+wordLen > dict->textlen) { // if not enough space allocated -> reallocate dictionary string |
|---|
| 2263 | u_str ntext = (u_str)gbm_get_mem(dict->textlen+DICT_STRING_INCR, GBM_DICT_INDEX); |
|---|
| 2264 | |
|---|
| 2265 | memcpy(ntext, dict->text, dict->textlen); |
|---|
| 2266 | gbm_free_mem(dict->text, dict->textlen, GBM_DICT_INDEX); |
|---|
| 2267 | |
|---|
| 2268 | dict->text = ntext; |
|---|
| 2269 | dict->textlen += DICT_STRING_INCR; |
|---|
| 2270 | } |
|---|
| 2271 | |
|---|
| 2272 | dict->offsets[dict->words] = offset-overlap; |
|---|
| 2273 | dict->resort[dict->words] = wordFrequency; // temporarily miss-use this to store frequency |
|---|
| 2274 | dict->words++; |
|---|
| 2275 | |
|---|
| 2276 | word = dict->text+offset-overlap; |
|---|
| 2277 | gb_assert(overlap==0 || GB_MEMCMP(word, buffer, overlap)==0); // test overlapping string-part |
|---|
| 2278 | memcpy(word, buffer, wordLen); // word -> dictionary string |
|---|
| 2279 | offset += wordLen-overlap; |
|---|
| 2280 | |
|---|
| 2281 | if (!tree.exists) break; |
|---|
| 2282 | |
|---|
| 2283 | for (len=min(10, wordLen-1); len>=0 && nextWordLen==0; len--) { |
|---|
| 2284 | memset(buffer, '*', maxdeep); |
|---|
| 2285 | tree = remove_word_from_dtree(tree, word+wordLen-len, len, buffer, &nextWordLen, &wordFrequency, &dummy); |
|---|
| 2286 | overlap = len; |
|---|
| 2287 | } |
|---|
| 2288 | |
|---|
| 2289 | wordLen = nextWordLen; |
|---|
| 2290 | } |
|---|
| 2291 | |
|---|
| 2292 | gb_assert(dict->words <= MAX_LONG_INDEX); |
|---|
| 2293 | gb_assert(dict->words==words); /* dict->words == # of words stored in dictionary string |
|---|
| 2294 | * words == # of words pre-calculated */ |
|---|
| 2295 | |
|---|
| 2296 | #if DEBUG |
|---|
| 2297 | printf(" word_sum=%li overlap_sum=%li (%li%%) max_overlap=%li\n", |
|---|
| 2298 | word_sum, overlap_sum, (overlap_sum*100)/word_sum, max_overlap); |
|---|
| 2299 | #endif |
|---|
| 2300 | |
|---|
| 2301 | if (offset<dict->textlen) { // reallocate dict->text if it was allocated too large |
|---|
| 2302 | u_str ntext = (u_str)gbm_get_mem(offset, GBM_DICT_INDEX); |
|---|
| 2303 | |
|---|
| 2304 | memcpy(ntext, dict->text, offset); |
|---|
| 2305 | gbm_free_mem(dict->text, dict->textlen, GBM_DICT_INDEX); |
|---|
| 2306 | |
|---|
| 2307 | dict->text = ntext; |
|---|
| 2308 | dict->textlen = offset; |
|---|
| 2309 | } |
|---|
| 2310 | |
|---|
| 2311 | sort_dict_offsets(dict); |
|---|
| 2312 | |
|---|
| 2313 | gbm_free_mem(buffer, maxdeep, GBM_DICT_INDEX); |
|---|
| 2314 | free_dtree(tree); |
|---|
| 2315 | |
|---|
| 2316 | return dict; |
|---|
| 2317 | } |
|---|
| 2318 | |
|---|
| 2319 | return NULp; |
|---|
| 2320 | } |
|---|
| 2321 | |
|---|
| 2322 | static void gb_free_dictionary(GB_DICTIONARY*& dict) { |
|---|
| 2323 | gbm_free_mem(dict->text, dict->textlen, GBM_DICT_INDEX); |
|---|
| 2324 | gbm_free_mem(dict->offsets, sizeof(*(dict->offsets))*dict->words, GBM_DICT_INDEX); |
|---|
| 2325 | gbm_free_mem(dict->resort, sizeof(*(dict->resort))*dict->words, GBM_DICT_INDEX); |
|---|
| 2326 | |
|---|
| 2327 | gbm_free_mem(dict, sizeof(*dict), GBM_DICT_INDEX); |
|---|
| 2328 | dict = NULp; |
|---|
| 2329 | } |
|---|
| 2330 | |
|---|
| 2331 | static GB_ERROR readAndWrite(O_gbdByKey *gbkp, size_t& old_size, size_t& new_size) { |
|---|
| 2332 | GB_ERROR error = NULp; |
|---|
| 2333 | |
|---|
| 2334 | old_size = 0; |
|---|
| 2335 | new_size = 0; |
|---|
| 2336 | |
|---|
| 2337 | for (int i=0; i<gbkp->cnt && !error; i++) { |
|---|
| 2338 | GBDATA *gbd = gbkp->gbds[i]; |
|---|
| 2339 | |
|---|
| 2340 | if (COMPRESSIBLE(gbd->type())) { |
|---|
| 2341 | size_t size; |
|---|
| 2342 | char *data; |
|---|
| 2343 | |
|---|
| 2344 | { |
|---|
| 2345 | cu_str d = (cu_str)get_data_n_size(gbd, &size); |
|---|
| 2346 | old_size += gbd->as_entry()->memsize(); |
|---|
| 2347 | |
|---|
| 2348 | data = (char*)gbm_get_mem(size, GBM_DICT_INDEX); |
|---|
| 2349 | memcpy(data, d, size); |
|---|
| 2350 | gb_assert(data[size-1] == 0); |
|---|
| 2351 | } |
|---|
| 2352 | |
|---|
| 2353 | switch (gbd->type()) { |
|---|
| 2354 | case GB_STRING: |
|---|
| 2355 | error = GB_write_string(gbd, ""); |
|---|
| 2356 | if (!error) error = GB_write_string(gbd, data); |
|---|
| 2357 | break; |
|---|
| 2358 | case GB_BYTES: |
|---|
| 2359 | error = GB_write_bytes(gbd, NULp, 0); |
|---|
| 2360 | if (!error) error = GB_write_bytes(gbd, data, size); |
|---|
| 2361 | break; |
|---|
| 2362 | case GB_INTS: |
|---|
| 2363 | error = GB_write_ints(gbd, (GB_UINT4 *)NULp, 0); |
|---|
| 2364 | if (!error) error = GB_write_ints(gbd, (GB_UINT4 *)data, size); |
|---|
| 2365 | break; |
|---|
| 2366 | case GB_FLOATS: |
|---|
| 2367 | error = GB_write_floats(gbd, (float*)NULp, 0); |
|---|
| 2368 | if (!error) error = GB_write_floats(gbd, (float*)(void*)data, size); |
|---|
| 2369 | break; |
|---|
| 2370 | default: |
|---|
| 2371 | gb_assert(0); |
|---|
| 2372 | break; |
|---|
| 2373 | } |
|---|
| 2374 | |
|---|
| 2375 | new_size += gbd->as_entry()->memsize(); |
|---|
| 2376 | |
|---|
| 2377 | gbm_free_mem(data, size, GBM_DICT_INDEX); |
|---|
| 2378 | } |
|---|
| 2379 | } |
|---|
| 2380 | return error; |
|---|
| 2381 | } |
|---|
| 2382 | |
|---|
| 2383 | static GB_ERROR gb_create_dictionaries(GB_MAIN_TYPE *Main, long maxmem) { |
|---|
| 2384 | GB_ERROR error = NULp; |
|---|
| 2385 | #if defined(TEST_DICT) |
|---|
| 2386 | long uncompressed_sum = 0; |
|---|
| 2387 | long compressed_sum = 0; |
|---|
| 2388 | #endif // TEST_DICT |
|---|
| 2389 | |
|---|
| 2390 | printf("Creating GBDATA-Arrays..\n"); |
|---|
| 2391 | |
|---|
| 2392 | if (!error) { |
|---|
| 2393 | O_gbdByKey *gbk = g_b_opti_createGbdByKey(Main); |
|---|
| 2394 | int idx = -1; |
|---|
| 2395 | |
|---|
| 2396 | printf("Creating dictionaries..\n"); |
|---|
| 2397 | |
|---|
| 2398 | #ifdef DEBUG |
|---|
| 2399 | // #define TEST_ONE // test only key specified below |
|---|
| 2400 | // #define TEST_SOME // test only some keys specified below |
|---|
| 2401 | #if defined(TEST_ONE) |
|---|
| 2402 | // select wanted index |
|---|
| 2403 | for (idx=0; idx<gbdByKey_cnt; idx++) { // title author dew_author ebi_journal name ua_tax date full_name ua_title |
|---|
| 2404 | if (gbk[idx].cnt && strcmp(quark2key(Main, idx), "tree")==0) break; |
|---|
| 2405 | } |
|---|
| 2406 | gb_assert(idx<gbdByKey_cnt); |
|---|
| 2407 | #endif |
|---|
| 2408 | #endif |
|---|
| 2409 | |
|---|
| 2410 | #ifdef TEST_ONE |
|---|
| 2411 | // only create dictionary for index selected above (no loop) |
|---|
| 2412 | #else |
|---|
| 2413 | // create dictionaries for all indices (this is the normal operation) |
|---|
| 2414 | arb_progress progress("Optimizing key data", long(gbdByKey_cnt-1)); |
|---|
| 2415 | for (idx = gbdByKey_cnt-1; idx >= 1 && !error; --idx, progress.inc_and_check_user_abort(error)) |
|---|
| 2416 | #endif |
|---|
| 2417 | |
|---|
| 2418 | { |
|---|
| 2419 | GB_DICTIONARY *dict; |
|---|
| 2420 | |
|---|
| 2421 | GB_CSTR key_name = quark2key(Main, idx); |
|---|
| 2422 | GBDATA *gb_main = Main->gb_main(); |
|---|
| 2423 | |
|---|
| 2424 | #ifdef TEST_SOME |
|---|
| 2425 | if (!( // add all wanted keys here |
|---|
| 2426 | strcmp(key_name, "REF") == 0 || |
|---|
| 2427 | strcmp(key_name, "ref") == 0 |
|---|
| 2428 | )) continue; |
|---|
| 2429 | #endif // TEST_SOME |
|---|
| 2430 | |
|---|
| 2431 | #ifndef TEST_ONE |
|---|
| 2432 | if (!gbk[idx].cnt) continue; // there are no entries with this quark |
|---|
| 2433 | |
|---|
| 2434 | GB_TYPES type = gbk[idx].gbds[0]->type(); |
|---|
| 2435 | |
|---|
| 2436 | GB_begin_transaction(gb_main); |
|---|
| 2437 | int compression_mask = gb_get_compression_mask(Main, idx, type); |
|---|
| 2438 | GB_commit_transaction(gb_main); |
|---|
| 2439 | |
|---|
| 2440 | if ((compression_mask & GB_COMPRESSION_DICTIONARY) == 0) continue; // compression with dictionary is not allowed |
|---|
| 2441 | if (strcmp(key_name, "data") == 0) continue; |
|---|
| 2442 | if (strcmp(key_name, "quality") == 0) continue; |
|---|
| 2443 | #endif |
|---|
| 2444 | |
|---|
| 2445 | printf("- dictionary for '%s' (idx=%i)\n", key_name, idx); |
|---|
| 2446 | GB_begin_transaction(gb_main); |
|---|
| 2447 | dict = gb_create_dictionary(&(gbk[idx]), maxmem); |
|---|
| 2448 | |
|---|
| 2449 | if (dict) { |
|---|
| 2450 | /* decompress with old dictionary and write |
|---|
| 2451 | all data of actual type without compression: */ |
|---|
| 2452 | |
|---|
| 2453 | printf(" * Uncompressing all with old dictionary ...\n"); |
|---|
| 2454 | |
|---|
| 2455 | size_t old_compressed_size; |
|---|
| 2456 | |
|---|
| 2457 | { |
|---|
| 2458 | int& compr_mask = Main->keys[idx].compression_mask; |
|---|
| 2459 | int old_compr_mask = compr_mask; |
|---|
| 2460 | |
|---|
| 2461 | size_t new_size; |
|---|
| 2462 | |
|---|
| 2463 | compr_mask &= ~GB_COMPRESSION_DICTIONARY; |
|---|
| 2464 | error = readAndWrite(&gbk[idx], old_compressed_size, new_size); |
|---|
| 2465 | compr_mask = old_compr_mask; |
|---|
| 2466 | } |
|---|
| 2467 | |
|---|
| 2468 | if (!error) { |
|---|
| 2469 | /* dictionary is saved in the following format: |
|---|
| 2470 | * |
|---|
| 2471 | * GB_NINT size |
|---|
| 2472 | * GB_NINT offsets[dict->words] |
|---|
| 2473 | * GB_NINT resort[dict->words] |
|---|
| 2474 | * char *text |
|---|
| 2475 | */ |
|---|
| 2476 | |
|---|
| 2477 | int dict_buffer_size = sizeof(GB_NINT) * (1+dict->words*2) + dict->textlen; |
|---|
| 2478 | char *dict_buffer = (char*)gbm_get_mem(dict_buffer_size, GBM_DICT_INDEX); |
|---|
| 2479 | long old_dict_buffer_size; |
|---|
| 2480 | char *old_dict_buffer; |
|---|
| 2481 | |
|---|
| 2482 | { |
|---|
| 2483 | GB_NINT *nint = (GB_NINT*)dict_buffer; |
|---|
| 2484 | int n; |
|---|
| 2485 | |
|---|
| 2486 | *nint++ = htonl(dict->words); |
|---|
| 2487 | for (n=0; n<dict->words; n++) *nint++ = htonl(dict->offsets[n]); |
|---|
| 2488 | for (n=0; n<dict->words; n++) *nint++ = htonl(dict->resort[n]); |
|---|
| 2489 | |
|---|
| 2490 | memcpy(nint, dict->text, dict->textlen); |
|---|
| 2491 | } |
|---|
| 2492 | |
|---|
| 2493 | const char *key = Main->keys[idx].key; |
|---|
| 2494 | |
|---|
| 2495 | error = gb_load_dictionary_data(gb_main, key, &old_dict_buffer, &old_dict_buffer_size); |
|---|
| 2496 | if (!error) { |
|---|
| 2497 | gb_save_dictionary_data(gb_main, key, dict_buffer, dict_buffer_size); |
|---|
| 2498 | |
|---|
| 2499 | // compress all data with new dictionary |
|---|
| 2500 | printf(" * Compressing all with new dictionary ...\n"); |
|---|
| 2501 | |
|---|
| 2502 | size_t old_size, new_compressed_size; |
|---|
| 2503 | error = readAndWrite(&gbk[idx], old_size, new_compressed_size); |
|---|
| 2504 | |
|---|
| 2505 | if (!error) { |
|---|
| 2506 | printf(" (compressed size: old=%zu new=%zu ratio=%.1f%%)\n", |
|---|
| 2507 | old_compressed_size, new_compressed_size, (new_compressed_size*100.0)/old_compressed_size); |
|---|
| 2508 | |
|---|
| 2509 | // @@@ for some keys compression fails (e.g. 'ref'); |
|---|
| 2510 | // need to find out why dictionary is so bad |
|---|
| 2511 | // gb_assert(new_compressed_size <= old_compressed_size); // @@@ enable this (fails in unit-test) |
|---|
| 2512 | } |
|---|
| 2513 | |
|---|
| 2514 | if (error) { |
|---|
| 2515 | /* critical state: new dictionary has been written, but transaction will be aborted below. |
|---|
| 2516 | * Solution: Write back old dictionary. |
|---|
| 2517 | */ |
|---|
| 2518 | gb_save_dictionary_data(gb_main, key, old_dict_buffer, old_dict_buffer_size); |
|---|
| 2519 | } |
|---|
| 2520 | } |
|---|
| 2521 | |
|---|
| 2522 | gbm_free_mem(dict_buffer, dict_buffer_size, GBM_DICT_INDEX); |
|---|
| 2523 | if (old_dict_buffer) gbm_free_mem(old_dict_buffer, old_dict_buffer_size, GBM_DICT_INDEX); |
|---|
| 2524 | |
|---|
| 2525 | #if defined(TEST_DICT) |
|---|
| 2526 | if (!error) { |
|---|
| 2527 | GB_DICTIONARY *dict_reloaded = gb_get_dictionary(Main, idx); |
|---|
| 2528 | test_dictionary(dict_reloaded, &(gbk[idx]), &uncompressed_sum, &compressed_sum); |
|---|
| 2529 | } |
|---|
| 2530 | #endif // TEST_DICT |
|---|
| 2531 | } |
|---|
| 2532 | |
|---|
| 2533 | gb_free_dictionary(dict); |
|---|
| 2534 | } |
|---|
| 2535 | |
|---|
| 2536 | error = GB_end_transaction(gb_main, error); |
|---|
| 2537 | } |
|---|
| 2538 | |
|---|
| 2539 | #ifdef TEST_DICT |
|---|
| 2540 | if (!error) { |
|---|
| 2541 | printf(" overall uncompressed size = %li b\n" |
|---|
| 2542 | " overall compressed size = %li b (Ratio=%li%%)\n", |
|---|
| 2543 | uncompressed_sum, compressed_sum, |
|---|
| 2544 | (compressed_sum*100)/uncompressed_sum); |
|---|
| 2545 | } |
|---|
| 2546 | #endif // TEST_DICT |
|---|
| 2547 | |
|---|
| 2548 | printf("Done.\n"); |
|---|
| 2549 | |
|---|
| 2550 | g_b_opti_freeGbdByKey(gbk); |
|---|
| 2551 | } |
|---|
| 2552 | |
|---|
| 2553 | return error; |
|---|
| 2554 | } |
|---|
| 2555 | |
|---|
| 2556 | GB_ERROR GB_optimize(GBDATA *gb_main) { |
|---|
| 2557 | unsigned long maxKB = GB_get_usable_memory(); |
|---|
| 2558 | long maxMem; |
|---|
| 2559 | GB_ERROR error = NULp; |
|---|
| 2560 | GB_UNDO_TYPE prev_undo_type = GB_get_requested_undo_type(gb_main); |
|---|
| 2561 | |
|---|
| 2562 | #ifdef DEBUG |
|---|
| 2563 | maxKB /= 2; |
|---|
| 2564 | #endif |
|---|
| 2565 | |
|---|
| 2566 | if (maxKB<=(LONG_MAX/1024)) maxMem = maxKB*1024; |
|---|
| 2567 | else maxMem = LONG_MAX; |
|---|
| 2568 | |
|---|
| 2569 | error = GB_request_undo_type(gb_main, GB_UNDO_KILL); |
|---|
| 2570 | if (!error) { |
|---|
| 2571 | error = gb_create_dictionaries(GB_MAIN(gb_main), maxMem); |
|---|
| 2572 | if (!error) GB_disable_quicksave(gb_main, "Database optimized"); |
|---|
| 2573 | ASSERT_NO_ERROR(GB_request_undo_type(gb_main, prev_undo_type)); |
|---|
| 2574 | } |
|---|
| 2575 | return error; |
|---|
| 2576 | } |
|---|
| 2577 | |
|---|
| 2578 | // -------------------------------------------------------------------------------- |
|---|
| 2579 | |
|---|
| 2580 | #ifdef UNIT_TESTS |
|---|
| 2581 | #ifndef TEST_UNIT_H |
|---|
| 2582 | #include <test_unit.h> |
|---|
| 2583 | #endif |
|---|
| 2584 | |
|---|
| 2585 | // #define TEST_AUTO_UPDATE // uncomment to auto-update binary result of DB optimization |
|---|
| 2586 | // #define TEST_AUTO_UPDATE_ASCII // uncomment to auto-update ascii-input from output (be careful with this!) |
|---|
| 2587 | |
|---|
| 2588 | void TEST_SLOW_optimize() { |
|---|
| 2589 | // test DB optimization (optimizes compression) |
|---|
| 2590 | // [current coverage ~89%] |
|---|
| 2591 | // |
|---|
| 2592 | // Note: a test for sequence compression is in adseqcompr.cxx@TEST_SLOW_sequence_compression |
|---|
| 2593 | |
|---|
| 2594 | GB_shell shell; |
|---|
| 2595 | |
|---|
| 2596 | const char *source_ascii = "TEST_opti_ascii_in.arb"; |
|---|
| 2597 | const char *target_ascii = "TEST_opti_ascii_out.arb"; |
|---|
| 2598 | |
|---|
| 2599 | const char *nonopti = "TEST_opti_none.arb"; |
|---|
| 2600 | const char *optimized = "TEST_opti_initial.arb"; |
|---|
| 2601 | const char *reoptimized = "TEST_opti_again.arb"; |
|---|
| 2602 | const char *expected = "TEST_opti_expected.arb"; // expected result after optimize |
|---|
| 2603 | |
|---|
| 2604 | // initial optimization of ASCII-DB |
|---|
| 2605 | { |
|---|
| 2606 | GBDATA *gb_main = GB_open(source_ascii, "rw"); |
|---|
| 2607 | |
|---|
| 2608 | TEST_EXPECT_NO_ERROR(GB_save_as(gb_main, nonopti, "b")); |
|---|
| 2609 | |
|---|
| 2610 | { |
|---|
| 2611 | GB_topSecurityLevel unsecured(gb_main); |
|---|
| 2612 | TEST_EXPECT_NO_ERROR(GB_optimize(gb_main)); |
|---|
| 2613 | } |
|---|
| 2614 | |
|---|
| 2615 | GB_flush_cache(gb_main); |
|---|
| 2616 | |
|---|
| 2617 | TEST_EXPECT_NO_ERROR(GB_save_as(gb_main, optimized, "b")); |
|---|
| 2618 | TEST_EXPECT_NO_ERROR(GB_save_as(gb_main, target_ascii, "a")); |
|---|
| 2619 | |
|---|
| 2620 | #if defined(TEST_AUTO_UPDATE) |
|---|
| 2621 | TEST_COPY_FILE(optimized, expected); |
|---|
| 2622 | #endif |
|---|
| 2623 | #if defined(TEST_AUTO_UPDATE_ASCII) |
|---|
| 2624 | TEST_COPY_FILE(target_ascii, source_ascii); |
|---|
| 2625 | #endif |
|---|
| 2626 | |
|---|
| 2627 | TEST_EXPECT_TEXTFILE_DIFFLINES(source_ascii, target_ascii, 0); |
|---|
| 2628 | TEST_EXPECT_FILES_EQUAL(optimized, expected); |
|---|
| 2629 | |
|---|
| 2630 | // check that optimization made sense: |
|---|
| 2631 | long nonopti_size = GB_size_of_file(nonopti); |
|---|
| 2632 | long optimized_size = GB_size_of_file(optimized); |
|---|
| 2633 | TEST_EXPECT_LESS(optimized_size, nonopti_size); // did file shrink? |
|---|
| 2634 | TEST_EXPECT_EQUAL(optimized_size*100/nonopti_size, 74); // document compression ratio (in percent) |
|---|
| 2635 | |
|---|
| 2636 | GB_close(gb_main); |
|---|
| 2637 | } |
|---|
| 2638 | |
|---|
| 2639 | // re-optimize DB (which is already compressed) |
|---|
| 2640 | { |
|---|
| 2641 | GBDATA *gb_main = GB_open(optimized, "rw"); |
|---|
| 2642 | |
|---|
| 2643 | { |
|---|
| 2644 | GB_topSecurityLevel unsecured(gb_main); |
|---|
| 2645 | TEST_EXPECT_NO_ERROR(GB_optimize(gb_main)); |
|---|
| 2646 | } |
|---|
| 2647 | |
|---|
| 2648 | TEST_EXPECT_NO_ERROR(GB_save_as(gb_main, reoptimized, "b")); |
|---|
| 2649 | TEST_EXPECT_NO_ERROR(GB_save_as(gb_main, target_ascii, "a")); |
|---|
| 2650 | |
|---|
| 2651 | TEST_EXPECT_TEXTFILE_DIFFLINES(source_ascii, target_ascii, 0); |
|---|
| 2652 | TEST_EXPECT_FILES_EQUAL(reoptimized, expected); // reoptimize should produce same result as initial optimize |
|---|
| 2653 | |
|---|
| 2654 | GB_close(gb_main); |
|---|
| 2655 | } |
|---|
| 2656 | |
|---|
| 2657 | TEST_EXPECT_NO_ERROR(GBK_system(GBS_global_string("rm %s %s %s %s", target_ascii, nonopti, optimized, reoptimized))); |
|---|
| 2658 | } |
|---|
| 2659 | |
|---|
| 2660 | void TEST_ticket_742() { |
|---|
| 2661 | // reproduce problem reported in ticket #742 |
|---|
| 2662 | GB_shell shell; |
|---|
| 2663 | { |
|---|
| 2664 | const char *opti_db = "TEST_opti_expected.arb"; // expected result after optimize |
|---|
| 2665 | GBDATA *gb_main = GBT_open(opti_db, "rw"); // use GBT_open to create index for 'name' |
|---|
| 2666 | |
|---|
| 2667 | for (int suf = 2; suf<=4; ++suf) { |
|---|
| 2668 | char *sainame = GBS_global_string_copy("forcecompress_%i", suf); |
|---|
| 2669 | char *mod_sainame = GBS_global_string_copy("%s.mod", sainame); |
|---|
| 2670 | |
|---|
| 2671 | GBDATA *gb_sai_name; |
|---|
| 2672 | { |
|---|
| 2673 | GB_transaction ta(gb_main); |
|---|
| 2674 | |
|---|
| 2675 | GBDATA *gb_sai = GBT_find_SAI(gb_main, sainame); TEST_REJECT_NULL(gb_sai); |
|---|
| 2676 | gb_sai_name = GB_entry(gb_sai, "name"); TEST_REJECT_NULL(gb_sai_name); |
|---|
| 2677 | |
|---|
| 2678 | TEST_EXPECT_EQUAL(GB_read_char_pntr(gb_sai_name), sainame); |
|---|
| 2679 | |
|---|
| 2680 | TEST_EXPECT_NO_ERROR(GB_write_string(gb_sai_name, mod_sainame)); |
|---|
| 2681 | TEST_EXPECT_EQUAL(GB_read_char_pntr(gb_sai_name), mod_sainame); // fixed |
|---|
| 2682 | |
|---|
| 2683 | switch (suf) { |
|---|
| 2684 | case 2: |
|---|
| 2685 | // do nothing special (only test value in next TA below) |
|---|
| 2686 | break; |
|---|
| 2687 | case 3: |
|---|
| 2688 | // flushing the cache "solves" the problem => GB_write_string does not flush correctly |
|---|
| 2689 | GB_flush_cache(gb_sai_name); |
|---|
| 2690 | TEST_EXPECT_EQUAL(GB_read_char_pntr(gb_sai_name), mod_sainame); |
|---|
| 2691 | break; |
|---|
| 2692 | case 4: |
|---|
| 2693 | // writing twice also "solves" the problem |
|---|
| 2694 | TEST_EXPECT_NO_ERROR(GB_write_string(gb_sai_name, mod_sainame)); |
|---|
| 2695 | TEST_EXPECT_EQUAL(GB_read_char_pntr(gb_sai_name), mod_sainame); |
|---|
| 2696 | break; |
|---|
| 2697 | |
|---|
| 2698 | |
|---|
| 2699 | default: |
|---|
| 2700 | TEST_REJECT(true); |
|---|
| 2701 | break; |
|---|
| 2702 | } |
|---|
| 2703 | } |
|---|
| 2704 | |
|---|
| 2705 | { |
|---|
| 2706 | GB_transaction ta(gb_main); |
|---|
| 2707 | TEST_EXPECT_EQUAL(GB_read_char_pntr(gb_sai_name), mod_sainame); // ok in next TA |
|---|
| 2708 | } |
|---|
| 2709 | |
|---|
| 2710 | free(mod_sainame); |
|---|
| 2711 | free(sainame); |
|---|
| 2712 | } |
|---|
| 2713 | |
|---|
| 2714 | { |
|---|
| 2715 | GB_transaction ta(gb_main); |
|---|
| 2716 | |
|---|
| 2717 | GBDATA *gb_species = GBT_find_species(gb_main, "FrnPhilo"); TEST_REJECT_NULL(gb_species); |
|---|
| 2718 | GBDATA *gb_data = GB_create(gb_species, "data", GB_STRING); TEST_REJECT_NULL(gb_data); |
|---|
| 2719 | |
|---|
| 2720 | const char *seq1 = ".....................AUUCUGGUU-----GA--U-CC-U-G------------.............."; |
|---|
| 2721 | const char *seq2 = "........A-A--CU---------------C-A-A-A-G-GA-G--AC---A-C-U-G..............."; |
|---|
| 2722 | |
|---|
| 2723 | TEST_EXPECT_NO_ERROR(GB_write_string(gb_data, seq1)); |
|---|
| 2724 | TEST_EXPECT_EQUAL(GB_read_char_pntr(gb_data), seq1); |
|---|
| 2725 | TEST_EXPECT_EQUAL(gb_data->flags.compressed_data, 1); |
|---|
| 2726 | TEST_EXPECT_EQUAL(gb_data->flags2.extern_data, 1); |
|---|
| 2727 | |
|---|
| 2728 | TEST_EXPECT_NO_ERROR(GB_write_string(gb_data, seq2)); |
|---|
| 2729 | TEST_EXPECT_EQUAL(GB_read_char_pntr(gb_data), seq2); |
|---|
| 2730 | TEST_EXPECT_EQUAL(gb_data->flags.compressed_data, 1); |
|---|
| 2731 | TEST_EXPECT_EQUAL(gb_data->flags2.extern_data, 1); |
|---|
| 2732 | |
|---|
| 2733 | TEST_EXPECT_NO_ERROR(GB_create_index(GBT_get_species_data(gb_main), "data", GB_IGNORE_CASE, 20)); |
|---|
| 2734 | |
|---|
| 2735 | TEST_EXPECT_NO_ERROR(GB_write_string(gb_data, seq1)); |
|---|
| 2736 | TEST_EXPECT_EQUAL(GB_read_char_pntr(gb_data), seq1); // fixed |
|---|
| 2737 | |
|---|
| 2738 | TEST_EXPECT_NO_ERROR(GB_write_string(gb_data, seq2)); |
|---|
| 2739 | TEST_EXPECT_EQUAL(GB_read_char_pntr(gb_data), seq2); // seems to work ... |
|---|
| 2740 | |
|---|
| 2741 | GB_flush_cache(gb_data); |
|---|
| 2742 | TEST_EXPECT_EQUAL(GB_read_char_pntr(gb_data), seq2); // fixed |
|---|
| 2743 | } |
|---|
| 2744 | |
|---|
| 2745 | GB_close(gb_main); |
|---|
| 2746 | } |
|---|
| 2747 | } |
|---|
| 2748 | |
|---|
| 2749 | void TEST_AFTER_SLOW_streamed_ascii_save_asUsedBy_silva_pipeline() { // run after TEST_SLOW_loadsave! |
|---|
| 2750 | GB_shell shell; |
|---|
| 2751 | |
|---|
| 2752 | const char *loadname = "TEST_loadsave_ascii.arb"; |
|---|
| 2753 | const char *savename = "TEST_streamsaved.arb"; |
|---|
| 2754 | |
|---|
| 2755 | { |
|---|
| 2756 | GBDATA *gb_main1 = GB_open(loadname, "r"); TEST_REJECT_NULL(gb_main1); |
|---|
| 2757 | GBDATA *gb_main2 = GB_open(loadname, "rw"); TEST_REJECT_NULL(gb_main2); |
|---|
| 2758 | |
|---|
| 2759 | // delete all species from DB2 |
|---|
| 2760 | GBDATA *gb_species_data2 = NULp; |
|---|
| 2761 | { |
|---|
| 2762 | GB_transaction ta(gb_main2); |
|---|
| 2763 | GB_topSecurityLevel unsecured(gb_main2); |
|---|
| 2764 | gb_species_data2 = GBT_get_species_data(gb_main2); |
|---|
| 2765 | for (GBDATA *gb_species = GBT_first_species_rel_species_data(gb_species_data2); |
|---|
| 2766 | gb_species; |
|---|
| 2767 | gb_species = GBT_next_species(gb_species)) |
|---|
| 2768 | { |
|---|
| 2769 | TEST_EXPECT_NO_ERROR(GB_delete(gb_species)); |
|---|
| 2770 | } |
|---|
| 2771 | } |
|---|
| 2772 | |
|---|
| 2773 | for (int saveWhileTransactionOpen = 0; saveWhileTransactionOpen<=1; ++saveWhileTransactionOpen) { |
|---|
| 2774 | { |
|---|
| 2775 | ArbDBWriter *writer = NULp; |
|---|
| 2776 | TEST_EXPECT_NO_ERROR(GB_start_streamed_save_as(gb_main2, savename, "a", writer)); |
|---|
| 2777 | TEST_EXPECT_NO_ERROR(GB_stream_save_part(writer, gb_main2, gb_species_data2)); |
|---|
| 2778 | |
|---|
| 2779 | { |
|---|
| 2780 | GB_transaction ta1(gb_main1); |
|---|
| 2781 | GB_transaction ta2(gb_main2); |
|---|
| 2782 | |
|---|
| 2783 | for (GBDATA *gb_species1 = GBT_first_species(gb_main1); |
|---|
| 2784 | gb_species1; |
|---|
| 2785 | gb_species1 = GBT_next_species(gb_species1)) |
|---|
| 2786 | { |
|---|
| 2787 | GBDATA *gb_species2 = GB_create_container(gb_species_data2, "species"); |
|---|
| 2788 | if (!gb_species2) { |
|---|
| 2789 | TEST_EXPECT_NO_ERROR(GB_await_error()); |
|---|
| 2790 | } |
|---|
| 2791 | else { |
|---|
| 2792 | TEST_EXPECT_NO_ERROR(GB_copy_dropMarksAndTempstate(gb_species2, gb_species1)); |
|---|
| 2793 | GB_write_flag(gb_species2, GB_read_flag(gb_species1)); // copy marked flag |
|---|
| 2794 | } |
|---|
| 2795 | |
|---|
| 2796 | if (!saveWhileTransactionOpen) GB_commit_transaction(gb_main2); |
|---|
| 2797 | TEST_EXPECT_NO_ERROR(GB_stream_save_part(writer, gb_species2, gb_species2)); |
|---|
| 2798 | if (!saveWhileTransactionOpen) GB_begin_transaction(gb_main2); |
|---|
| 2799 | |
|---|
| 2800 | GB_topSecurityLevel unsecured(gb_main2); |
|---|
| 2801 | TEST_EXPECT_NO_ERROR(GB_delete(gb_species2)); |
|---|
| 2802 | } |
|---|
| 2803 | } |
|---|
| 2804 | |
|---|
| 2805 | TEST_EXPECT_NO_ERROR(GB_stream_save_part(writer, gb_species_data2, gb_main2)); |
|---|
| 2806 | TEST_EXPECT_NO_ERROR(GB_finish_stream_save(writer)); |
|---|
| 2807 | } |
|---|
| 2808 | |
|---|
| 2809 | // test file content |
|---|
| 2810 | TEST_EXPECT_TEXTFILES_EQUAL(savename, loadname); // (Note: if this fails, run auto-update in TEST_SLOW_loadsave) |
|---|
| 2811 | TEST_EXPECT_ZERO_OR_SHOW_ERRNO(GB_unlink(savename)); |
|---|
| 2812 | } |
|---|
| 2813 | |
|---|
| 2814 | // test some error cases: |
|---|
| 2815 | { |
|---|
| 2816 | // 1. stream binary (not supported) |
|---|
| 2817 | ArbDBWriter *writer = NULp; |
|---|
| 2818 | TEST_EXPECT_NO_ERROR(GB_start_streamed_save_as(gb_main2, savename, "b", writer)); |
|---|
| 2819 | TEST_EXPECT_ERROR_CONTAINS(GB_stream_save_part(writer, gb_main2, gb_species_data2), "only supported for ascii"); |
|---|
| 2820 | GB_finish_stream_save(writer); |
|---|
| 2821 | TEST_EXPECT(!GB_is_regularfile(savename)); // no partial file remains |
|---|
| 2822 | |
|---|
| 2823 | // 2. invalid use of GB_stream_save_part (not ancestors) |
|---|
| 2824 | TEST_EXPECT_NO_ERROR(GB_start_streamed_save_as(gb_main2, savename, "a", writer)); |
|---|
| 2825 | TEST_EXPECT_NO_ERROR(GB_stream_save_part(writer, gb_main2, gb_species_data2)); |
|---|
| 2826 | GBDATA *gb_extended_data2; |
|---|
| 2827 | { |
|---|
| 2828 | GB_transaction ta(gb_main2); |
|---|
| 2829 | gb_extended_data2 = GBT_get_SAI_data(gb_main2); |
|---|
| 2830 | } |
|---|
| 2831 | TEST_EXPECT_ERROR_CONTAINS(GB_stream_save_part(writer, gb_species_data2, gb_extended_data2), "has to be an ancestor"); |
|---|
| 2832 | GB_finish_stream_save(writer); |
|---|
| 2833 | TEST_EXPECT(!GB_is_regularfile(savename)); // no partial file remains |
|---|
| 2834 | |
|---|
| 2835 | } |
|---|
| 2836 | // TEST_EXPECT_ZERO_OR_SHOW_ERRNO(GB_unlink(savename)); |
|---|
| 2837 | |
|---|
| 2838 | GB_close(gb_main2); |
|---|
| 2839 | GB_close(gb_main1); |
|---|
| 2840 | } |
|---|
| 2841 | } |
|---|
| 2842 | |
|---|
| 2843 | #endif // UNIT_TESTS |
|---|
| 2844 | |
|---|
| 2845 | // -------------------------------------------------------------------------------- |
|---|
| 2846 | |
|---|