| 1 | /* ============================================================ */ |
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| 2 | /* */ |
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| 3 | /* File : adtools.c */ |
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| 4 | /* Purpose : misc function */ |
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| 5 | /* */ |
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| 6 | /* Institute of Microbiology (Technical University Munich) */ |
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| 7 | /* 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 <string.h> |
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| 12 | #include <stdlib.h> |
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| 13 | |
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| 14 | #include "adlocal.h" |
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| 15 | #include "arbdbt.h" |
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| 16 | |
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| 17 | GBDATA *GBT_find_or_create(GBDATA *Main,const char *key,long delete_level) |
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| 18 | { |
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| 19 | GBDATA *gbd; |
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| 20 | gbd = GB_entry(Main,key); |
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| 21 | if (gbd) return gbd; |
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| 22 | gbd = GB_create_container(Main,key); |
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| 23 | GB_write_security_delete(gbd,delete_level); |
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| 24 | return gbd; |
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| 25 | } |
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| 26 | |
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| 27 | |
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| 28 | /* the following function were meant to use user defined values. |
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| 29 | * |
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| 30 | * Especially for 'ECOLI' there is already a possibility to |
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| 31 | * specify a different reference in edit4, but there's no |
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| 32 | * data model in the DB for it. Consider whether it makes sense, |
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| 33 | * if secedit uses it as well. |
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| 34 | * |
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| 35 | * Note: Don't change the result type to 'const char *' even if the functions always |
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| 36 | * return the same atm. That may change. |
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| 37 | */ |
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| 38 | |
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| 39 | char *GBT_get_default_helix(GBDATA *gb_main) { |
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| 40 | GBUSE(gb_main); |
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| 41 | return strdup("HELIX"); |
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| 42 | } |
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| 43 | |
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| 44 | char *GBT_get_default_helix_nr(GBDATA *gb_main) { |
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| 45 | GBUSE(gb_main); |
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| 46 | return strdup("HELIX_NR"); |
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| 47 | } |
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| 48 | |
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| 49 | char *GBT_get_default_ref(GBDATA *gb_main) { |
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| 50 | GBUSE(gb_main); |
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| 51 | return strdup("ECOLI"); |
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| 52 | } |
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| 53 | |
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| 54 | |
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| 55 | /******************************************************************************************** |
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| 56 | check routines |
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| 57 | ********************************************************************************************/ |
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| 58 | GB_ERROR GBT_check_arb_file(const char *name) |
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| 59 | /* Checks whether the name of a file seemed to be an arb file */ |
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| 60 | /* if == 0 it was an arb file */ |
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| 61 | { |
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| 62 | FILE *in; |
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| 63 | long i; |
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| 64 | char buffer[100]; |
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| 65 | if (strchr(name,':')) return 0; |
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| 66 | in = fopen(name,"r"); |
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| 67 | if (!in) return GB_export_errorf("Cannot find file '%s'",name); |
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| 68 | i = gb_read_in_long(in, 0); |
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| 69 | if ( (i== 0x56430176) || (i == GBTUM_MAGIC_NUMBER) || (i == GBTUM_MAGIC_REVERSED)) { |
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| 70 | fclose(in); |
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| 71 | return 0; |
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| 72 | } |
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| 73 | rewind(in); |
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| 74 | fgets(buffer,50,in); |
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| 75 | fclose(in); |
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| 76 | if (!strncmp(buffer,"/*ARBDB AS",10)) { |
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| 77 | return 0; |
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| 78 | }; |
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| 79 | |
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| 80 | |
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| 81 | return GB_export_errorf("'%s' is not an arb file",name); |
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| 82 | } |
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| 83 | |
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| 84 | /******************************************************************************************** |
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| 85 | analyse the database |
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| 86 | ********************************************************************************************/ |
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| 87 | #define GBT_SUM_LEN 4096 |
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| 88 | /* maximum length of path */ |
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| 89 | |
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| 90 | struct DbScanner { |
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| 91 | GB_HASH *hash_table; |
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| 92 | int count; |
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| 93 | char **result; |
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| 94 | GB_TYPES type; |
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| 95 | char *buffer; |
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| 96 | }; |
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| 97 | |
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| 98 | static void gbt_scan_db_rek(GBDATA *gbd,char *prefix, int deep, struct DbScanner *scanner) { |
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| 99 | GB_TYPES type = GB_read_type(gbd); |
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| 100 | GBDATA *gb2; |
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| 101 | const char *key; |
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| 102 | int len_of_prefix; |
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| 103 | if (type == GB_DB) { |
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| 104 | len_of_prefix = strlen(prefix); |
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| 105 | for (gb2 = GB_child(gbd); gb2; gb2 = GB_nextChild(gb2)) { /* find everything */ |
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| 106 | if (deep){ |
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| 107 | key = GB_read_key_pntr(gb2); |
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| 108 | sprintf(&prefix[len_of_prefix],"/%s",key); |
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| 109 | gbt_scan_db_rek(gb2, prefix, 1, scanner); |
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| 110 | } |
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| 111 | else { |
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| 112 | prefix[len_of_prefix] = 0; |
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| 113 | gbt_scan_db_rek(gb2, prefix, 1, scanner); |
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| 114 | } |
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| 115 | } |
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| 116 | prefix[len_of_prefix] = 0; |
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| 117 | } |
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| 118 | else { |
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| 119 | if (GB_check_hkey(prefix+1)) { |
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| 120 | prefix = prefix; /* for debugging purpose */ |
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| 121 | } |
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| 122 | else { |
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| 123 | prefix[0] = (char)type; |
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| 124 | GBS_incr_hash(scanner->hash_table, prefix); |
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| 125 | } |
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| 126 | } |
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| 127 | } |
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| 128 | |
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| 129 | static long gbs_scan_db_count(const char *key, long val, void *cd_scanner) { |
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| 130 | struct DbScanner *scanner = (struct DbScanner*)cd_scanner; |
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| 131 | |
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| 132 | scanner->count++; |
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| 133 | key = key; |
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| 134 | |
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| 135 | return val; |
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| 136 | } |
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| 137 | |
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| 138 | struct scan_db_insert { |
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| 139 | struct DbScanner *scanner; |
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| 140 | const char *datapath; |
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| 141 | }; |
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| 142 | |
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| 143 | static long gbs_scan_db_insert(const char *key, long val, void *cd_insert_data) { |
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| 144 | struct scan_db_insert *insert = (struct scan_db_insert *)cd_insert_data; |
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| 145 | char *to_insert = 0; |
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| 146 | |
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| 147 | if (!insert->datapath) { |
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| 148 | to_insert = strdup(key); |
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| 149 | } |
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| 150 | else { |
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| 151 | if (GBS_strscmp(insert->datapath, key+1) == 0) { // datapath matches |
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| 152 | to_insert = strdup(key+strlen(insert->datapath)); // cut off prefix |
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| 153 | to_insert[0] = key[0]; // copy type |
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| 154 | } |
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| 155 | } |
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| 156 | |
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| 157 | if (to_insert) { |
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| 158 | struct DbScanner *scanner = insert->scanner; |
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| 159 | scanner->result[scanner->count++] = to_insert; |
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| 160 | } |
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| 161 | |
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| 162 | return val; |
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| 163 | } |
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| 164 | |
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| 165 | static int gbs_scan_db_compare(const void *left, const void *right, void *unused){ |
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| 166 | GBUSE(unused); |
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| 167 | return strcmp((GB_CSTR)left+1, (GB_CSTR)right+1); |
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| 168 | } |
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| 169 | |
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| 170 | |
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| 171 | char **GBT_scan_db(GBDATA *gbd, const char *datapath) { |
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| 172 | /* returns a NULL terminated array of 'strings': |
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| 173 | * - each string is the path to a node beyond gbd; |
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| 174 | * - every string exists only once |
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| 175 | * - the first character of a string is the type of the entry |
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| 176 | * - the strings are sorted alphabetically !!! |
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| 177 | * |
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| 178 | * if datapath != 0, only keys with prefix datapath are scanned and |
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| 179 | * the prefix is removed from the resulting key_names. |
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| 180 | * |
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| 181 | * @@@ this function is incredibly slow when called from clients |
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| 182 | */ |
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| 183 | struct DbScanner scanner; |
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| 184 | |
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| 185 | scanner.hash_table = GBS_create_hash(1024, GB_MIND_CASE); |
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| 186 | scanner.buffer = (char *)malloc(GBT_SUM_LEN); |
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| 187 | strcpy(scanner.buffer,""); |
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| 188 | |
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| 189 | gbt_scan_db_rek(gbd, scanner.buffer, 0, &scanner); |
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| 190 | |
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| 191 | scanner.count = 0; |
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| 192 | GBS_hash_do_loop(scanner.hash_table, gbs_scan_db_count, &scanner); |
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| 193 | |
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| 194 | scanner.result = (char **)GB_calloc(sizeof(char *),scanner.count+1); |
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| 195 | /* null terminated result */ |
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| 196 | |
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| 197 | scanner.count = 0; |
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| 198 | struct scan_db_insert insert = { &scanner, datapath, }; |
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| 199 | GBS_hash_do_loop(scanner.hash_table, gbs_scan_db_insert, &insert); |
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| 200 | |
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| 201 | GBS_free_hash(scanner.hash_table); |
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| 202 | |
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| 203 | GB_sort((void **)scanner.result, 0, scanner.count, gbs_scan_db_compare, 0); |
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| 204 | |
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| 205 | free(scanner.buffer); |
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| 206 | return scanner.result; |
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| 207 | } |
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| 208 | |
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| 209 | /******************************************************************************************** |
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| 210 | send a message to the db server to AWAR_ERROR_MESSAGES |
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| 211 | ********************************************************************************************/ |
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| 212 | |
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| 213 | static void new_gbt_message_created_cb(GBDATA *gb_pending_messages, int *cd, GB_CB_TYPE cbt) { |
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| 214 | static int avoid_deadlock = 0; |
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| 215 | |
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| 216 | GBUSE(cd); |
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| 217 | GBUSE(cbt); |
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| 218 | |
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| 219 | if (!avoid_deadlock) { |
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| 220 | GBDATA *gb_msg; |
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| 221 | |
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| 222 | avoid_deadlock++; |
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| 223 | GB_push_transaction(gb_pending_messages); |
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| 224 | |
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| 225 | for (gb_msg = GB_entry(gb_pending_messages, "msg"); gb_msg;) { |
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| 226 | { |
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| 227 | const char *msg = GB_read_char_pntr(gb_msg); |
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| 228 | GB_warning(msg); |
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| 229 | } |
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| 230 | { |
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| 231 | GBDATA *gb_next_msg = GB_nextEntry(gb_msg); |
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| 232 | GB_delete(gb_msg); |
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| 233 | gb_msg = gb_next_msg; |
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| 234 | } |
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| 235 | } |
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| 236 | |
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| 237 | GB_pop_transaction(gb_pending_messages); |
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| 238 | avoid_deadlock--; |
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| 239 | } |
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| 240 | } |
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| 241 | |
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| 242 | void GBT_install_message_handler(GBDATA *gb_main) { |
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| 243 | GBDATA *gb_pending_messages; |
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| 244 | |
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| 245 | GB_push_transaction(gb_main); |
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| 246 | gb_pending_messages = GB_search(gb_main, AWAR_ERROR_CONTAINER, GB_CREATE_CONTAINER); |
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| 247 | GB_add_callback(gb_pending_messages, GB_CB_SON_CREATED, new_gbt_message_created_cb, 0); |
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| 248 | GB_pop_transaction(gb_main); |
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| 249 | |
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| 250 | #if defined(DEBUG) && 0 |
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| 251 | GBT_message(GB_get_root(gb_pending_messages), GBS_global_string("GBT_install_message_handler installed for gb_main=%p", gb_main)); |
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| 252 | #endif /* DEBUG */ |
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| 253 | } |
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| 254 | |
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| 255 | |
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| 256 | void GBT_message(GBDATA *gb_main, const char *msg) { |
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| 257 | // When called in client(or server) this causes the DB server to show the message. |
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| 258 | // Message is showed via GB_warning (which uses aw_message in GUIs) |
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| 259 | // |
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| 260 | // Note: The message is not shown before the transaction ends. |
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| 261 | // If the transaction is aborted, the message is never shown! |
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| 262 | // |
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| 263 | // see also : GB_warning |
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| 264 | |
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| 265 | GB_ERROR error = GB_push_transaction(gb_main); |
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| 266 | |
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| 267 | if (!error) { |
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| 268 | GBDATA *gb_pending_messages = GB_search(gb_main, AWAR_ERROR_CONTAINER, GB_CREATE_CONTAINER); |
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| 269 | GBDATA *gb_msg = gb_pending_messages ? GB_create(gb_pending_messages, "msg", GB_STRING) : 0; |
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| 270 | |
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| 271 | if (!gb_msg) error = GB_await_error(); |
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| 272 | else { |
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| 273 | gb_assert(msg); |
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| 274 | error = GB_write_string(gb_msg, msg); |
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| 275 | } |
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| 276 | } |
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| 277 | error = GB_end_transaction(gb_main, error); |
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| 278 | |
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| 279 | if (error) { |
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| 280 | fprintf(stderr, "GBT_message: Failed to write message '%s'\n(Reason: %s)\n", msg, error); |
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| 281 | } |
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| 282 | } |
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| 283 | |
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| 284 | /* ---------------------------------------- |
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| 285 | * conversion between |
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| 286 | * |
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| 287 | * - char ** (heap-allocated array of heap-allocated char*'s) |
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| 288 | * - one string containing several substrings separated by a separator |
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| 289 | * (e.g. "name1,name2,name3") |
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| 290 | */ |
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| 291 | |
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| 292 | #if defined(DEVEL_RALF) |
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| 293 | #warning search for code which is splitting strings and use GBT_split_string there |
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| 294 | #warning rename to GBS_split_string and move to string functions |
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| 295 | #endif /* DEVEL_RALF */ |
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| 296 | |
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| 297 | char **GBT_split_string(const char *namelist, char separator, int *countPtr) { |
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| 298 | // Split 'namelist' into an array of names at 'separator'. |
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| 299 | // Use GBT_free_names() to free it. |
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| 300 | // Sets 'countPtr' to the number of names found |
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| 301 | |
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| 302 | int sepCount = 0; |
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| 303 | const char *sep = namelist; |
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| 304 | while (sep) { |
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| 305 | sep = strchr(sep, separator); |
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| 306 | if (sep) { |
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| 307 | ++sep; |
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| 308 | ++sepCount; |
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| 309 | } |
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| 310 | } |
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| 311 | |
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| 312 | char **result = malloc((sepCount+2)*sizeof(*result)); // 3 separators -> 4 names (plus terminal NULL) |
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| 313 | int count = 0; |
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| 314 | |
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| 315 | for (; count < sepCount; ++count) { |
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| 316 | sep = strchr(namelist, separator); |
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| 317 | gb_assert(sep); |
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| 318 | |
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| 319 | result[count] = GB_strpartdup(namelist, sep-1); |
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| 320 | namelist = sep+1; |
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| 321 | } |
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| 322 | |
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| 323 | result[count++] = strdup(namelist); |
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| 324 | result[count] = NULL; |
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| 325 | |
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| 326 | if (countPtr) *countPtr = count; |
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| 327 | |
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| 328 | return result; |
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| 329 | } |
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| 330 | |
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| 331 | char *GBT_join_names(const char *const *names, char separator) { |
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| 332 | struct GBS_strstruct *out = GBS_stropen(1000); |
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| 333 | |
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| 334 | if (names[0]) { |
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| 335 | GBS_strcat(out, names[0]); |
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| 336 | gb_assert(strchr(names[0], separator) == 0); // otherwise you'll never be able to GBT_split_string |
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| 337 | int n; |
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| 338 | for (n = 1; names[n]; ++n) { |
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| 339 | GBS_chrcat(out, separator); |
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| 340 | GBS_strcat(out, names[n]); |
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| 341 | gb_assert(strchr(names[n], separator) == 0); // otherwise you'll never be able to GBT_split_string |
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| 342 | } |
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| 343 | } |
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| 344 | |
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| 345 | return GBS_strclose(out); |
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| 346 | } |
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| 347 | |
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| 348 | void GBT_free_names(char **names) { |
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| 349 | char **pn; |
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| 350 | for (pn = names; *pn;pn++) free(*pn); |
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| 351 | free((char *)names); |
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| 352 | } |
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| 353 | |
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| 354 | /* ---------------------------------------- */ |
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| 355 | /* read value from database field |
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| 356 | * returns 0 in case of error (use GB_await_error()) |
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| 357 | * or when field does not exist |
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| 358 | * |
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| 359 | * otherwise GBT_read_string returns a heap copy |
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| 360 | * other functions return a pointer to a temporary variable (invalidated by next call) |
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| 361 | */ |
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| 362 | |
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| 363 | char *GBT_read_string(GBDATA *gb_container, const char *fieldpath){ |
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| 364 | GBDATA *gbd; |
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| 365 | char *result = NULL; |
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| 366 | |
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| 367 | GB_push_transaction(gb_container); |
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| 368 | gbd = GB_search(gb_container,fieldpath,GB_FIND); |
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| 369 | if (gbd) result = GB_read_string(gbd); |
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| 370 | GB_pop_transaction(gb_container); |
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| 371 | return result; |
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| 372 | } |
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| 373 | |
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| 374 | char *GBT_read_as_string(GBDATA *gb_container, const char *fieldpath){ |
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| 375 | GBDATA *gbd; |
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| 376 | char *result = NULL; |
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| 377 | |
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| 378 | GB_push_transaction(gb_container); |
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| 379 | gbd = GB_search(gb_container,fieldpath,GB_FIND); |
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| 380 | if (gbd) result = GB_read_as_string(gbd); |
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| 381 | GB_pop_transaction(gb_container); |
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| 382 | return result; |
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| 383 | } |
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| 384 | |
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| 385 | const char *GBT_read_char_pntr(GBDATA *gb_container, const char *fieldpath){ |
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| 386 | GBDATA *gbd; |
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| 387 | const char *result = NULL; |
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| 388 | |
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| 389 | GB_push_transaction(gb_container); |
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| 390 | gbd = GB_search(gb_container,fieldpath,GB_FIND); |
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| 391 | if (gbd) result = GB_read_char_pntr(gbd); |
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| 392 | GB_pop_transaction(gb_container); |
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| 393 | return result; |
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| 394 | } |
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| 395 | |
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| 396 | NOT4PERL long *GBT_read_int(GBDATA *gb_container, const char *fieldpath) { |
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| 397 | GBDATA *gbd; |
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| 398 | long *result = NULL; |
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| 399 | |
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| 400 | GB_push_transaction(gb_container); |
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| 401 | gbd = GB_search(gb_container,fieldpath,GB_FIND); |
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| 402 | if (gbd) { |
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| 403 | static long result_var; |
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| 404 | result_var = GB_read_int(gbd); |
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| 405 | result = &result_var; |
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| 406 | } |
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| 407 | GB_pop_transaction(gb_container); |
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| 408 | return result; |
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| 409 | } |
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| 410 | |
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| 411 | NOT4PERL double *GBT_read_float(GBDATA *gb_container, const char *fieldpath) { |
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| 412 | GBDATA *gbd; |
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| 413 | double *result = NULL; |
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| 414 | |
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| 415 | GB_push_transaction(gb_container); |
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| 416 | gbd = GB_search(gb_container,fieldpath,GB_FIND); |
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| 417 | if (gbd) { |
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| 418 | static double result_var; |
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| 419 | result_var = GB_read_float(gbd); |
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| 420 | result = &result_var; |
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| 421 | } |
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| 422 | GB_pop_transaction(gb_container); |
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| 423 | return result; |
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| 424 | } |
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| 425 | |
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| 426 | /* -------------------------------------------------------------------------------------- */ |
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| 427 | /* read value from database field or create field with default_value if missing |
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| 428 | * (same usage as GBT_read_XXX above) |
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| 429 | */ |
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| 430 | |
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| 431 | char *GBT_readOrCreate_string(GBDATA *gb_container, const char *fieldpath, const char *default_value) { |
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| 432 | GBDATA *gb_string; |
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| 433 | char *result = NULL; |
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| 434 | |
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| 435 | GB_push_transaction(gb_container); |
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| 436 | gb_string = GB_searchOrCreate_string(gb_container, fieldpath, default_value); |
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| 437 | if (gb_string) result = GB_read_string(gb_string); |
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| 438 | GB_pop_transaction(gb_container); |
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| 439 | return result; |
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| 440 | } |
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| 441 | |
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| 442 | const char *GBT_readOrCreate_char_pntr(GBDATA *gb_container, const char *fieldpath, const char *default_value) { |
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| 443 | GBDATA *gb_string; |
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| 444 | const char *result = NULL; |
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| 445 | |
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| 446 | GB_push_transaction(gb_container); |
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| 447 | gb_string = GB_searchOrCreate_string(gb_container, fieldpath, default_value); |
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| 448 | if (gb_string) result = GB_read_char_pntr(gb_string); |
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| 449 | GB_pop_transaction(gb_container); |
|---|
| 450 | return result; |
|---|
| 451 | } |
|---|
| 452 | |
|---|
| 453 | NOT4PERL long *GBT_readOrCreate_int(GBDATA *gb_container, const char *fieldpath, long default_value) { |
|---|
| 454 | GBDATA *gb_int; |
|---|
| 455 | long *result = NULL; |
|---|
| 456 | |
|---|
| 457 | GB_push_transaction(gb_container); |
|---|
| 458 | gb_int = GB_searchOrCreate_int(gb_container, fieldpath, default_value); |
|---|
| 459 | if (gb_int) { |
|---|
| 460 | static long result_var; |
|---|
| 461 | result_var = GB_read_int(gb_int); |
|---|
| 462 | result = &result_var; |
|---|
| 463 | } |
|---|
| 464 | GB_pop_transaction(gb_container); |
|---|
| 465 | return result; |
|---|
| 466 | } |
|---|
| 467 | |
|---|
| 468 | NOT4PERL double *GBT_readOrCreate_float(GBDATA *gb_container, const char *fieldpath, double default_value) { |
|---|
| 469 | GBDATA *gb_float; |
|---|
| 470 | double *result = NULL; |
|---|
| 471 | |
|---|
| 472 | GB_push_transaction(gb_container); |
|---|
| 473 | gb_float = GB_searchOrCreate_float(gb_container, fieldpath, default_value); |
|---|
| 474 | if (gb_float) { |
|---|
| 475 | static double result_var; |
|---|
| 476 | result_var = GB_read_float(gb_float); |
|---|
| 477 | result = &result_var; |
|---|
| 478 | } |
|---|
| 479 | GB_pop_transaction(gb_container); |
|---|
| 480 | return result; |
|---|
| 481 | } |
|---|
| 482 | |
|---|
| 483 | /* ------------------------------------------------------------------- */ |
|---|
| 484 | /* overwrite existing or create new database field */ |
|---|
| 485 | /* (field must not exist twice or more - it has to be unique!!) */ |
|---|
| 486 | |
|---|
| 487 | GB_ERROR GBT_write_string(GBDATA *gb_container, const char *fieldpath, const char *content) { |
|---|
| 488 | GB_ERROR error = GB_push_transaction(gb_container); |
|---|
| 489 | GBDATA *gbd = GB_search(gb_container, fieldpath, GB_STRING); |
|---|
| 490 | if (!gbd) error = GB_await_error(); |
|---|
| 491 | else { |
|---|
| 492 | error = GB_write_string(gbd, content); |
|---|
| 493 | gb_assert(GB_nextEntry(gbd) == 0); // only one entry should exist (sure you want to use this function?) |
|---|
| 494 | } |
|---|
| 495 | return GB_end_transaction(gb_container, error); |
|---|
| 496 | } |
|---|
| 497 | |
|---|
| 498 | GB_ERROR GBT_write_int(GBDATA *gb_container, const char *fieldpath, long content) { |
|---|
| 499 | GB_ERROR error = GB_push_transaction(gb_container); |
|---|
| 500 | GBDATA *gbd = GB_search(gb_container, fieldpath, GB_INT); |
|---|
| 501 | if (!gbd) error = GB_await_error(); |
|---|
| 502 | else { |
|---|
| 503 | error = GB_write_int(gbd, content); |
|---|
| 504 | gb_assert(GB_nextEntry(gbd) == 0); // only one entry should exist (sure you want to use this function?) |
|---|
| 505 | } |
|---|
| 506 | return GB_end_transaction(gb_container, error); |
|---|
| 507 | } |
|---|
| 508 | |
|---|
| 509 | GB_ERROR GBT_write_byte(GBDATA *gb_container, const char *fieldpath, unsigned char content) { |
|---|
| 510 | GB_ERROR error = GB_push_transaction(gb_container); |
|---|
| 511 | GBDATA *gbd = GB_search(gb_container, fieldpath, GB_BYTE); |
|---|
| 512 | if (!gbd) error = GB_await_error(); |
|---|
| 513 | else { |
|---|
| 514 | error = GB_write_byte(gbd, content); |
|---|
| 515 | gb_assert(GB_nextEntry(gbd) == 0); // only one entry should exist (sure you want to use this function?) |
|---|
| 516 | } |
|---|
| 517 | return GB_end_transaction(gb_container, error); |
|---|
| 518 | } |
|---|
| 519 | |
|---|
| 520 | |
|---|
| 521 | GB_ERROR GBT_write_float(GBDATA *gb_container, const char *fieldpath, double content) { |
|---|
| 522 | GB_ERROR error = GB_push_transaction(gb_container); |
|---|
| 523 | GBDATA *gbd = GB_search(gb_container, fieldpath, GB_FLOAT); |
|---|
| 524 | if (!gbd) error = GB_await_error(); |
|---|
| 525 | else { |
|---|
| 526 | error = GB_write_float(gbd,content); |
|---|
| 527 | gb_assert(GB_nextEntry(gbd) == 0); // only one entry should exist (sure you want to use this function?) |
|---|
| 528 | } |
|---|
| 529 | return GB_end_transaction(gb_container, error); |
|---|
| 530 | } |
|---|
| 531 | |
|---|
| 532 | |
|---|
| 533 | GBDATA *GB_test_link_follower(GBDATA *gb_main,GBDATA *gb_link,const char *link){ |
|---|
| 534 | GBDATA *linktarget = GB_search(gb_main,"tmp/link/string",GB_STRING); |
|---|
| 535 | GBUSE(gb_link); |
|---|
| 536 | GB_write_string(linktarget,GBS_global_string("Link is '%s'",link)); |
|---|
| 537 | return GB_get_father(linktarget); |
|---|
| 538 | } |
|---|
| 539 | |
|---|
| 540 | /******************************************************************************************** |
|---|
| 541 | SAVE & LOAD |
|---|
| 542 | ********************************************************************************************/ |
|---|
| 543 | |
|---|
| 544 | /** Open a database, create an index for species and extended names, |
|---|
| 545 | disable saving the database in the PT_SERVER directory */ |
|---|
| 546 | |
|---|
| 547 | GBDATA *GBT_open(const char *path,const char *opent,const char *disabled_path) |
|---|
| 548 | { |
|---|
| 549 | GBDATA *gbd = GB_open(path,opent); |
|---|
| 550 | GBDATA *species_data; |
|---|
| 551 | GBDATA *extended_data; |
|---|
| 552 | GBDATA *gb_tmp; |
|---|
| 553 | long hash_size; |
|---|
| 554 | |
|---|
| 555 | if (!gbd) return gbd; |
|---|
| 556 | if (!disabled_path) disabled_path = "$(ARBHOME)/lib/pts/*"; |
|---|
| 557 | GB_disable_path(gbd,disabled_path); |
|---|
| 558 | GB_begin_transaction(gbd); |
|---|
| 559 | |
|---|
| 560 | if (!strchr(path,':')){ |
|---|
| 561 | species_data = GB_search(gbd, "species_data", GB_FIND); |
|---|
| 562 | if (species_data){ |
|---|
| 563 | hash_size = GB_number_of_subentries(species_data); |
|---|
| 564 | if (hash_size < GBT_SPECIES_INDEX_SIZE) hash_size = GBT_SPECIES_INDEX_SIZE; |
|---|
| 565 | GB_create_index(species_data,"name",GB_IGNORE_CASE,hash_size); |
|---|
| 566 | |
|---|
| 567 | extended_data = GBT_get_SAI_data(gbd); |
|---|
| 568 | hash_size = GB_number_of_subentries(extended_data); |
|---|
| 569 | if (hash_size < GBT_SAI_INDEX_SIZE) hash_size = GBT_SAI_INDEX_SIZE; |
|---|
| 570 | GB_create_index(extended_data,"name",GB_IGNORE_CASE,hash_size); |
|---|
| 571 | } |
|---|
| 572 | } |
|---|
| 573 | gb_tmp = GB_search(gbd,"tmp",GB_CREATE_CONTAINER); |
|---|
| 574 | GB_set_temporary(gb_tmp); |
|---|
| 575 | { /* install link followers */ |
|---|
| 576 | GB_MAIN_TYPE *Main = GB_MAIN(gbd); |
|---|
| 577 | Main->table_hash = GBS_create_hash(256, GB_MIND_CASE); |
|---|
| 578 | GB_install_link_follower(gbd,"REF",GB_test_link_follower); |
|---|
| 579 | } |
|---|
| 580 | GBT_install_table_link_follower(gbd); |
|---|
| 581 | GB_commit_transaction(gbd); |
|---|
| 582 | return gbd; |
|---|
| 583 | } |
|---|
| 584 | |
|---|
| 585 | /* -------------------------------------------------------------------------------- |
|---|
| 586 | * Remote commands |
|---|
| 587 | * |
|---|
| 588 | * Note: These commands may seem to be unused from inside ARB. |
|---|
| 589 | * They get used, but only indirectly via the macro-function. |
|---|
| 590 | * |
|---|
| 591 | * Search for |
|---|
| 592 | * - BIO::remote_action (use of GBT_remote_action) |
|---|
| 593 | * - BIO::remote_awar (use of GBT_remote_awar) |
|---|
| 594 | * - BIO::remote_read_awar (use of GBT_remote_read_awar - seems unused) |
|---|
| 595 | * - BIO::remote_touch_awar (use of GBT_remote_touch_awar - seems unused) |
|---|
| 596 | */ |
|---|
| 597 | |
|---|
| 598 | |
|---|
| 599 | #define AWAR_REMOTE_BASE_TPL "tmp/remote/%s/" |
|---|
| 600 | #define MAX_REMOTE_APPLICATION_NAME_LEN 30 |
|---|
| 601 | #define MAX_REMOTE_AWAR_STRING_LEN (11+MAX_REMOTE_APPLICATION_NAME_LEN+1+6+1) |
|---|
| 602 | |
|---|
| 603 | struct gbt_remote_awars { |
|---|
| 604 | char awar_action[MAX_REMOTE_AWAR_STRING_LEN]; |
|---|
| 605 | char awar_result[MAX_REMOTE_AWAR_STRING_LEN]; |
|---|
| 606 | char awar_awar[MAX_REMOTE_AWAR_STRING_LEN]; |
|---|
| 607 | char awar_value[MAX_REMOTE_AWAR_STRING_LEN]; |
|---|
| 608 | }; |
|---|
| 609 | |
|---|
| 610 | static void gbt_build_remote_awars(struct gbt_remote_awars *awars, const char *application) { |
|---|
| 611 | int length; |
|---|
| 612 | |
|---|
| 613 | gb_assert(strlen(application) <= MAX_REMOTE_APPLICATION_NAME_LEN); |
|---|
| 614 | |
|---|
| 615 | length = sprintf(awars->awar_action, AWAR_REMOTE_BASE_TPL, application); |
|---|
| 616 | gb_assert(length < (MAX_REMOTE_AWAR_STRING_LEN-6)); // Note : 6 is length of longest name appended below ! |
|---|
| 617 | |
|---|
| 618 | strcpy(awars->awar_result, awars->awar_action); |
|---|
| 619 | strcpy(awars->awar_awar, awars->awar_action); |
|---|
| 620 | strcpy(awars->awar_value, awars->awar_action); |
|---|
| 621 | |
|---|
| 622 | strcpy(awars->awar_action+length, "action"); |
|---|
| 623 | strcpy(awars->awar_result+length, "result"); |
|---|
| 624 | strcpy(awars->awar_awar+length, "awar"); |
|---|
| 625 | strcpy(awars->awar_value+length, "value"); |
|---|
| 626 | } |
|---|
| 627 | |
|---|
| 628 | static GBDATA *gbt_remote_search_awar(GBDATA *gb_main, const char *awar_name) { |
|---|
| 629 | GBDATA *gb_action; |
|---|
| 630 | while (1) { |
|---|
| 631 | GB_begin_transaction(gb_main); |
|---|
| 632 | gb_action = GB_search(gb_main, awar_name, GB_FIND); |
|---|
| 633 | GB_commit_transaction(gb_main); |
|---|
| 634 | if (gb_action) break; |
|---|
| 635 | GB_usleep(2000); |
|---|
| 636 | } |
|---|
| 637 | return gb_action; |
|---|
| 638 | } |
|---|
| 639 | |
|---|
| 640 | static GB_ERROR gbt_wait_for_remote_action(GBDATA *gb_main, GBDATA *gb_action, const char *awar_read) { |
|---|
| 641 | GB_ERROR error = 0; |
|---|
| 642 | |
|---|
| 643 | /* wait to end of action */ |
|---|
| 644 | |
|---|
| 645 | while (!error) { |
|---|
| 646 | GB_usleep(2000); |
|---|
| 647 | error = GB_begin_transaction(gb_main); |
|---|
| 648 | if (!error) { |
|---|
| 649 | char *ac = GB_read_string(gb_action); |
|---|
| 650 | if (ac[0] == 0) { // action has been cleared from remote side |
|---|
| 651 | GBDATA *gb_result = GB_search(gb_main, awar_read, GB_STRING); |
|---|
| 652 | error = GB_read_char_pntr(gb_result); // check for errors |
|---|
| 653 | } |
|---|
| 654 | free(ac); |
|---|
| 655 | } |
|---|
| 656 | error = GB_end_transaction(gb_main, error); |
|---|
| 657 | } |
|---|
| 658 | |
|---|
| 659 | return error; // may be error or result |
|---|
| 660 | } |
|---|
| 661 | |
|---|
| 662 | GB_ERROR GBT_remote_action(GBDATA *gb_main, const char *application, const char *action_name){ |
|---|
| 663 | struct gbt_remote_awars awars; |
|---|
| 664 | GBDATA *gb_action; |
|---|
| 665 | GB_ERROR error = NULL; |
|---|
| 666 | |
|---|
| 667 | gbt_build_remote_awars(&awars, application); |
|---|
| 668 | gb_action = gbt_remote_search_awar(gb_main, awars.awar_action); |
|---|
| 669 | |
|---|
| 670 | error = GB_begin_transaction(gb_main); |
|---|
| 671 | if (!error) error = GB_write_string(gb_action, action_name); /* write command */ |
|---|
| 672 | error = GB_end_transaction(gb_main, error); |
|---|
| 673 | |
|---|
| 674 | if (!error) error = gbt_wait_for_remote_action(gb_main, gb_action, awars.awar_result); |
|---|
| 675 | return error; |
|---|
| 676 | } |
|---|
| 677 | |
|---|
| 678 | GB_ERROR GBT_remote_awar(GBDATA *gb_main, const char *application, const char *awar_name, const char *value) { |
|---|
| 679 | struct gbt_remote_awars awars; |
|---|
| 680 | GBDATA *gb_awar; |
|---|
| 681 | GB_ERROR error = NULL; |
|---|
| 682 | |
|---|
| 683 | gbt_build_remote_awars(&awars, application); |
|---|
| 684 | gb_awar = gbt_remote_search_awar(gb_main, awars.awar_awar); |
|---|
| 685 | |
|---|
| 686 | error = GB_begin_transaction(gb_main); |
|---|
| 687 | if (!error) error = GB_write_string(gb_awar, awar_name); |
|---|
| 688 | if (!error) error = GBT_write_string(gb_main, awars.awar_value, value); |
|---|
| 689 | error = GB_end_transaction(gb_main, error); |
|---|
| 690 | |
|---|
| 691 | if (!error) error = gbt_wait_for_remote_action(gb_main, gb_awar, awars.awar_result); |
|---|
| 692 | |
|---|
| 693 | return error; |
|---|
| 694 | } |
|---|
| 695 | |
|---|
| 696 | GB_ERROR GBT_remote_read_awar(GBDATA *gb_main, const char *application, const char *awar_name) { |
|---|
| 697 | struct gbt_remote_awars awars; |
|---|
| 698 | GBDATA *gb_awar; |
|---|
| 699 | GB_ERROR error = NULL; |
|---|
| 700 | |
|---|
| 701 | gbt_build_remote_awars(&awars, application); |
|---|
| 702 | gb_awar = gbt_remote_search_awar(gb_main, awars.awar_awar); |
|---|
| 703 | |
|---|
| 704 | error = GB_begin_transaction(gb_main); |
|---|
| 705 | if (!error) error = GB_write_string(gb_awar, awar_name); |
|---|
| 706 | if (!error) error = GBT_write_string(gb_main, awars.awar_action, "AWAR_REMOTE_READ"); |
|---|
| 707 | error = GB_end_transaction(gb_main, error); |
|---|
| 708 | |
|---|
| 709 | if (!error) error = gbt_wait_for_remote_action(gb_main, gb_awar, awars.awar_value); |
|---|
| 710 | return error; |
|---|
| 711 | } |
|---|
| 712 | |
|---|
| 713 | const char *GBT_remote_touch_awar(GBDATA *gb_main, const char *application, const char *awar_name) { |
|---|
| 714 | struct gbt_remote_awars awars; |
|---|
| 715 | GBDATA *gb_awar; |
|---|
| 716 | GB_ERROR error = NULL; |
|---|
| 717 | |
|---|
| 718 | gbt_build_remote_awars(&awars, application); |
|---|
| 719 | gb_awar = gbt_remote_search_awar(gb_main, awars.awar_awar); |
|---|
| 720 | |
|---|
| 721 | error = GB_begin_transaction(gb_main); |
|---|
| 722 | if (!error) error = GB_write_string(gb_awar, awar_name); |
|---|
| 723 | if (!error) error = GBT_write_string(gb_main, awars.awar_action, "AWAR_REMOTE_TOUCH"); |
|---|
| 724 | error = GB_end_transaction(gb_main, error); |
|---|
| 725 | |
|---|
| 726 | if (!error) error = gbt_wait_for_remote_action(gb_main, gb_awar, awars.awar_result); |
|---|
| 727 | return error; |
|---|
| 728 | } |
|---|
| 729 | |
|---|
| 730 | |
|---|
| 731 | /* --------------------------- */ |
|---|
| 732 | /* self-notification */ |
|---|
| 733 | /* --------------------------- */ |
|---|
| 734 | /* provides a mechanism to notify ARB after some external tool finishes */ |
|---|
| 735 | |
|---|
| 736 | #define ARB_NOTIFICATIONS "tmp/notify" |
|---|
| 737 | |
|---|
| 738 | /* DB structure for notifications : |
|---|
| 739 | * |
|---|
| 740 | * ARB_NOTIFICATIONS/counter GB_INT counts used ids |
|---|
| 741 | * ARB_NOTIFICATIONS/notify/id GB_INT id of notification |
|---|
| 742 | * ARB_NOTIFICATIONS/notify/message GB_STRING message of notification (set by callback) |
|---|
| 743 | */ |
|---|
| 744 | |
|---|
| 745 | typedef void (*notify_cb_type)(const char *message, void *client_data); |
|---|
| 746 | |
|---|
| 747 | struct NCB { |
|---|
| 748 | notify_cb_type cb; |
|---|
| 749 | void *client_data; |
|---|
| 750 | }; |
|---|
| 751 | |
|---|
| 752 | static void notify_cb(GBDATA *gb_message, int *cb_info, GB_CB_TYPE cb_type) { |
|---|
| 753 | GB_remove_callback(gb_message, GB_CB_CHANGED|GB_CB_DELETE, notify_cb, cb_info); // @@@ cbproblematic |
|---|
| 754 | |
|---|
| 755 | int cb_done = 0; |
|---|
| 756 | struct NCB *pending = (struct NCB*)cb_info; |
|---|
| 757 | |
|---|
| 758 | if (cb_type == GB_CB_CHANGED) { |
|---|
| 759 | GB_ERROR error = 0; |
|---|
| 760 | const char *message = GB_read_char_pntr(gb_message); |
|---|
| 761 | if (!message) error = GB_await_error(); |
|---|
| 762 | else { |
|---|
| 763 | pending->cb(message, pending->client_data); |
|---|
| 764 | cb_done = 1; |
|---|
| 765 | } |
|---|
| 766 | |
|---|
| 767 | if (!cb_done) { |
|---|
| 768 | gb_assert(error); |
|---|
| 769 | GB_warningf("Notification failed (Reason: %s)\n", error); |
|---|
| 770 | gb_assert(0); |
|---|
| 771 | } |
|---|
| 772 | } |
|---|
| 773 | else { /* called from GB_remove_last_notification */ |
|---|
| 774 | gb_assert(cb_type == GB_CB_DELETE); |
|---|
| 775 | } |
|---|
| 776 | |
|---|
| 777 | free(pending); |
|---|
| 778 | } |
|---|
| 779 | |
|---|
| 780 | static int allocateNotificationID(GBDATA *gb_main, int *cb_info) { |
|---|
| 781 | /* returns a unique notification ID |
|---|
| 782 | * or 0 (use GB_get_error() in this case) |
|---|
| 783 | */ |
|---|
| 784 | |
|---|
| 785 | int id = 0; |
|---|
| 786 | GB_ERROR error = GB_push_transaction(gb_main); |
|---|
| 787 | |
|---|
| 788 | if (!error) { |
|---|
| 789 | GBDATA *gb_notify = GB_search(gb_main, ARB_NOTIFICATIONS, GB_CREATE_CONTAINER); |
|---|
| 790 | |
|---|
| 791 | if (gb_notify) { |
|---|
| 792 | GBDATA *gb_counter = GB_searchOrCreate_int(gb_notify, "counter", 0); |
|---|
| 793 | |
|---|
| 794 | if (gb_counter) { |
|---|
| 795 | int newid = GB_read_int(gb_counter) + 1; /* increment counter */ |
|---|
| 796 | error = GB_write_int(gb_counter, newid); |
|---|
| 797 | |
|---|
| 798 | if (!error) { |
|---|
| 799 | /* change transaction (to never use id twice!) */ |
|---|
| 800 | error = GB_pop_transaction(gb_main); |
|---|
| 801 | if (!error) error = GB_push_transaction(gb_main); |
|---|
| 802 | |
|---|
| 803 | if (!error) { |
|---|
| 804 | GBDATA *gb_notification = GB_create_container(gb_notify, "notify"); |
|---|
| 805 | |
|---|
| 806 | if (gb_notification) { |
|---|
| 807 | error = GBT_write_int(gb_notification, "id", newid); |
|---|
| 808 | if (!error) { |
|---|
| 809 | GBDATA *gb_message = GB_searchOrCreate_string(gb_notification, "message", ""); |
|---|
| 810 | |
|---|
| 811 | if (gb_message) { |
|---|
| 812 | error = GB_add_callback(gb_message, GB_CB_CHANGED|GB_CB_DELETE, notify_cb, cb_info); |
|---|
| 813 | if (!error) { |
|---|
| 814 | id = newid; /* success */ |
|---|
| 815 | } |
|---|
| 816 | } |
|---|
| 817 | } |
|---|
| 818 | } |
|---|
| 819 | } |
|---|
| 820 | } |
|---|
| 821 | } |
|---|
| 822 | } |
|---|
| 823 | } |
|---|
| 824 | |
|---|
| 825 | if (!id) { |
|---|
| 826 | if (!error) error = GB_await_error(); |
|---|
| 827 | error = GBS_global_string("Failed to allocate notification ID (%s)", error); |
|---|
| 828 | } |
|---|
| 829 | error = GB_end_transaction(gb_main, error); |
|---|
| 830 | if (error) GB_export_error(error); |
|---|
| 831 | |
|---|
| 832 | return id; |
|---|
| 833 | } |
|---|
| 834 | |
|---|
| 835 | |
|---|
| 836 | char *GB_generate_notification(GBDATA *gb_main, |
|---|
| 837 | void (*cb)(const char *message, void *client_data), |
|---|
| 838 | const char *message, void *client_data) |
|---|
| 839 | { |
|---|
| 840 | /* generates a call to 'arb_notify', meant to be inserted into some external system call. |
|---|
| 841 | * When that call is executed, the callback instantiated here will be called. |
|---|
| 842 | * |
|---|
| 843 | * Tip : To return variable results from the shell script, use the name of an environment |
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| 844 | * variable in 'message' (e.g. "$RESULT") |
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| 845 | */ |
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| 846 | |
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| 847 | int id; |
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| 848 | char *arb_notify_call = 0; |
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| 849 | struct NCB *pending = malloc(sizeof(*pending)); |
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| 850 | |
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| 851 | pending->cb = cb; |
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| 852 | pending->client_data = client_data; |
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| 853 | |
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| 854 | id = allocateNotificationID(gb_main, (int*)pending); |
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| 855 | if (id) { |
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| 856 | arb_notify_call = GBS_global_string_copy("arb_notify %i \"%s\"", id, message); |
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| 857 | } |
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| 858 | else { |
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| 859 | free(pending); |
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| 860 | } |
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| 861 | |
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| 862 | return arb_notify_call; |
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| 863 | } |
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| 864 | |
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| 865 | GB_ERROR GB_remove_last_notification(GBDATA *gb_main) { |
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| 866 | /* aborts the last notification */ |
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| 867 | GB_ERROR error = GB_push_transaction(gb_main); |
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| 868 | |
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| 869 | if (!error) { |
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| 870 | GBDATA *gb_notify = GB_search(gb_main, ARB_NOTIFICATIONS, GB_CREATE_CONTAINER); |
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| 871 | if (gb_notify) { |
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| 872 | GBDATA *gb_counter = GB_entry(gb_notify, "counter"); |
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| 873 | if (gb_counter) { |
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| 874 | int id = GB_read_int(gb_counter); |
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| 875 | GBDATA *gb_id = GB_find_int(gb_notify, "id", id, down_2_level); |
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| 876 | |
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| 877 | if (!gb_id) { |
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| 878 | error = GBS_global_string("No notification for ID %i", id); |
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| 879 | gb_assert(0); // GB_generate_notification() has not been called for 'id'! |
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| 880 | } |
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| 881 | else { |
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| 882 | GBDATA *gb_message = GB_brother(gb_id, "message"); |
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| 883 | |
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| 884 | if (!gb_message) { |
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| 885 | error = "Missing 'message' entry"; |
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| 886 | } |
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| 887 | else { |
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| 888 | error = GB_delete(gb_message); /* calls notify_cb */ |
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| 889 | } |
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| 890 | } |
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| 891 | } |
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| 892 | else { |
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| 893 | error = "No notification generated yet"; |
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| 894 | } |
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| 895 | } |
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| 896 | } |
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| 897 | |
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| 898 | error = GB_end_transaction(gb_main, error); |
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| 899 | return error; |
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| 900 | } |
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| 901 | |
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| 902 | GB_ERROR GB_notify(GBDATA *gb_main, int id, const char *message) { |
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| 903 | /* called via 'arb_notify' |
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| 904 | * 'id' has to be generated by GB_generate_notification() |
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| 905 | * 'message' is passed to notification callback belonging to id |
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| 906 | */ |
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| 907 | |
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| 908 | GB_ERROR error = 0; |
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| 909 | GBDATA *gb_notify = GB_search(gb_main, ARB_NOTIFICATIONS, GB_FIND); |
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| 910 | |
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| 911 | if (!gb_notify) { |
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| 912 | error = "Missing notification data"; |
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| 913 | gb_assert(0); // GB_generate_notification() has not been called! |
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| 914 | } |
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| 915 | else { |
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| 916 | GBDATA *gb_id = GB_find_int(gb_notify, "id", id, down_2_level); |
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| 917 | |
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| 918 | if (!gb_id) { |
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| 919 | error = GBS_global_string("No notification for ID %i", id); |
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| 920 | } |
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| 921 | else { |
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| 922 | GBDATA *gb_message = GB_brother(gb_id, "message"); |
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| 923 | |
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| 924 | if (!gb_message) { |
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| 925 | error = "Missing 'message' entry"; |
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| 926 | } |
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| 927 | else { |
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| 928 | /* callback the instantiating DB client */ |
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| 929 | error = GB_write_string(gb_message, message); |
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| 930 | } |
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| 931 | } |
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| 932 | } |
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| 933 | |
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| 934 | return error; |
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| 935 | } |
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