| … | |
… | |
| 101 | |
101 | |
| 102 | LOG (llevError, "FATAL: cannot open %s for reading!\n", filename); |
102 | LOG (llevError, "FATAL: cannot open %s for reading!\n", filename); |
| 103 | _exit (1); |
103 | _exit (1); |
| 104 | } |
104 | } |
| 105 | |
105 | |
| 106 | UUID::BUF buf; |
106 | char buf [UUID::MAX_LEN]; |
| 107 | buf[0] = 0; |
107 | buf[0] = 0; |
| 108 | fgets (buf, sizeof (buf), fp); |
108 | fgets (buf, sizeof (buf), fp); |
| 109 | |
109 | |
| 110 | if (!UUID::cur.parse (buf)) |
110 | if (!UUID::cur.parse (buf)) |
| 111 | { |
111 | { |
| … | |
… | |
| 138 | |
138 | |
| 139 | void |
139 | void |
| 140 | UUID::init () |
140 | UUID::init () |
| 141 | { |
141 | { |
| 142 | read_uuid (); |
142 | read_uuid (); |
|
|
143 | } |
|
|
144 | |
|
|
145 | bool |
|
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146 | UUID::parse (const char *s) |
|
|
147 | { |
|
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148 | if (*s++ != '<' || *s++ != '1' || *s++ != '.') |
|
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149 | return false; |
|
|
150 | |
|
|
151 | seq = 0; |
|
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152 | |
|
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153 | while (*s != '>') |
|
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154 | { |
|
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155 | if (*s < '0') |
|
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156 | return false; |
|
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157 | |
|
|
158 | // this gives nice branchless code with gcc |
|
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159 | assert ('0' < 'a' && '0' == 48 && 'a' == 97); |
|
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160 | int digit = (*s + (*s & 0x40 ? 9 : 0)) & 15; |
|
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161 | |
|
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162 | seq = (seq << 4) | digit; |
|
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163 | |
|
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164 | ++s; |
|
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165 | } |
|
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166 | |
|
|
167 | return true; |
|
|
168 | } |
|
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169 | |
|
|
170 | char * |
|
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171 | UUID::append (char *buf) const |
|
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172 | { |
|
|
173 | *buf++ = '<'; |
|
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174 | *buf++ = '1'; |
|
|
175 | *buf++ = '.'; |
|
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176 | |
|
|
177 | uint64_t seq = this->seq; |
|
|
178 | const int bits = 64; |
|
|
179 | char nz = 0; |
|
|
180 | static const char tohex [] = "0123456789abcdef"; |
|
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181 | |
|
|
182 | // assert (len >= 3 + bits / 4 + 1 + 1); |
|
|
183 | for (int i = bits / 4; --i; ) |
|
|
184 | { |
|
|
185 | uint8_t digit = seq >> (bits - 4); |
|
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186 | |
|
|
187 | *buf = tohex [digit]; |
|
|
188 | nz |= digit; |
|
|
189 | buf += nz ? 1 : 0; |
|
|
190 | seq <<= 4; |
|
|
191 | } |
|
|
192 | |
|
|
193 | // last digit is special - always emit |
|
|
194 | uint8_t digit = seq >> (bits - 4); |
|
|
195 | *buf++ = tohex [digit]; |
|
|
196 | |
|
|
197 | *buf++ = '>'; |
|
|
198 | |
|
|
199 | return buf; |
|
|
200 | } |
|
|
201 | |
|
|
202 | char * |
|
|
203 | UUID::c_str () const |
|
|
204 | { |
|
|
205 | static char buf [MAX_LEN]; |
|
|
206 | *append (buf) = 0; |
|
|
207 | return buf; |
| 143 | } |
208 | } |
| 144 | |
209 | |
| 145 | /* Returns TRUE if every key_values in wants has a partner with the same value in has. */ |
210 | /* Returns TRUE if every key_values in wants has a partner with the same value in has. */ |
| 146 | static bool |
211 | static bool |
| 147 | compare_ob_value_lists_one (const object *wants, const object *has) |
212 | compare_ob_value_lists_one (const object *wants, const object *has) |
