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31 lines
569 B
C
31 lines
569 B
C
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int mkhash(const char *cmd)
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{
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const char *s;
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int h,t,ki,kk;
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uint8_t a,b;
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s = cmd;
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ki = 15 * strlen(cmd);
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kk = hashdata[ki & HASHDATAMASK];
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while(*s)
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{
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a = tolowertab[(uchar)s[0]];
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b = tolowertab[(uchar)s[1]];
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h = (a - b) & HASHDATAMASK;
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ki += a + hashdata[h];
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#ifdef HEATMAP
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heatmap[ki & HASHDATAMASK] += 1;
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//heatmap[(ki + h) & HASHDATAMASK] += 1;
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#endif
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kk ^= hashdata[ki & HASHDATAMASK] ^ (hashdata[(h + ki) & HASHDATAMASK] << 8);
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s++;
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}
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t = kk & 511;
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#ifndef COM_ONS_C
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if (hash[t] > 0)
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collis += 1;
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hash[t] += 1;
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#endif
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return(t);
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}
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