151 lines
7.1 KiB
C
151 lines
7.1 KiB
C
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/*
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* Sccsid: @(#)rnd.h 9.1.1.10 9/7/95 16:24:09
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*
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* rnd.h -- header file for use withthe portable random number generator
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* provided by Frank Stephens of Unisys
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*/
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/* function protypes */
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long NextRand PROTO((long));
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long UnifInt PROTO((long, long, long));
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double UnifReal PROTO((double, double, long));
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double Exponential PROTO((double, long));
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static long nA = 16807; /* the multiplier */
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static long nM = 2147483647;/* the modulus == 2^31 - 1 */
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static long nQ = 127773; /* the quotient nM / nA */
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static long nR = 2836; /* the remainder nM % nA */
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static double dM = 2147483647.0;
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#ifdef V2
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seed_t Seed[MAX_STREAM + 1] =
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{
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{PART, 1, 0, 0}, /* P_MFG_SD 0 */
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{PART, 46831694, 0, 0}, /* P_BRND_SD 1 */
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{PART, 1841581359, 0, 0}, /* P_TYPE_SD 2 */
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{PART, 1193163244, 0, 0}, /* P_SIZE_SD 3 */
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{PART, 727633698, 0, 0}, /* P_CNTR_SD 4 */
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{PART, 933588178, 0, 0}, /* P_RCST_SD 5 */
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{PART, 804159733, 0, 0}, /* P_CMNT_SD 6 */
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{PSUPP, 1671059989, 0, 0}, /* PS_QTY_SD 7 */
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{PSUPP, 1051288424, 0, 0}, /* PS_SCST_SD 8 */
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{PSUPP, 1961692154, 0, 0}, /* PS_CMNT_SD 9 */
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{ORDER, 1227283347, 0, 1}, /* O_SUPP_SD 10 */
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{ORDER, 1171034773, 0, 1}, /* O_CLRK_SD 11 */
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{ORDER, 276090261, 0, V_STR_LEN(O_CMNT_LEN)}, /* O_CMNT_SD 12 */
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{ORDER, 1066728069, 0, 1}, /* O_ODATE_SD 13 */
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{LINE, 209208115, 0, 1}, /* L_QTY_SD 14 */
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{LINE, 554590007, 0, 1}, /* L_DCNT_SD 15 */
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{LINE, 721958466, 0, 1}, /* L_TAX_SD 16 */
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{LINE, 1371272478, 0, 1}, /* L_SHIP_SD 17 */
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{LINE, 675466456, 0, 1}, /* L_SMODE_SD 18 */
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{LINE, 1095462486, 0, V_STR_LEN(L_CMNT_LEN)}, /* L_CMNT_SD 19 */
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{LINE, 1808217256, 0, 0}, /* L_PKEY_SD 20 */
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{LINE, 2095021727, 0, 0}, /* L_SKEY_SD 21 */
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{LINE, 1769349045, 0, 0}, /* L_SDTE_SD 22 */
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{LINE, 904914315, 0, 0}, /* L_CDTE_SD 23 */
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{LINE, 373135028, 0, 0}, /* L_RDTE_SD 24 */
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{CUST, 717419739, 0, 0}, /* L_RFLG_SD 25 */
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{CUST, 881155353, 0, V_STR_LEN(C_ADDR_LEN)}, /* C_ADDR_SD 26 */
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{CUST, 1489529863, 0, 1}, /* C_NTRG_SD 27 */
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{CUST, 1521138112, 0, 3}, /* C_PHNE_SD 28 */
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{CUST, 298370230, 0, 1}, /* C_ABAL_SD 29 */
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{CUST, 1140279430, 0, 1}, /* C_MSEG_SD 30 */
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{CUST, 1335826707, 0, V_STR_LEN(C_CMNT_LEN)}, /* C_CMNT_SD 31 */
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{SUPP, 706178559, 0, 0}, /* S_ADDR_SD 32 */
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{SUPP, 110356601, 0, 0}, /* S_NTRG_SD 33 */
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{SUPP, 884434366, 0, 0}, /* S_PHNE_SD 34 */
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{SUPP, 962338209, 0, 0}, /* S_ABAL_SD 35 */
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{SUPP, 1341315363, 0, 0}, /* S_CMNT_SD 36 */
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{PART, 709314158, 0, 0}, /* P_NAME_SD 37 */
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{ORDER, 591449447, 0, 1}, /* O_PRIO_SD 38 */
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{LINE, 431918286, 0, 0}, /* HVAR_SD 39 */
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{NONE, 851767375, 0, 1}, /* O_CKEY_SD 40 */
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{NATION, 606179079, 0, 0}, /* N_CMNT_SD 41 */
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{REGION, 1500869201, 0, 0}, /* R_CMNT_SD 42 */
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{ORDER, 1434868289, 0, 0}, /* O_LCNT_SD 43 */
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{SUPP, 263032577, 0, 0}, /* BBB offset 44 */
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{SUPP, 753643799, 0, 0}, /* BBB type 45 */
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{SUPP, 202794285, 0, 0}, /* BBB comment 46 */
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{SUPP, 715851524, 0, 0}, /* BBB junk 47 */
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{LINE, 2095021727, 0, 0} /* L_OKEY_SD 48 */
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};
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#else
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long Seed[MAX_STREAM + 1] =
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{
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1, /* P_MFG_SD 0 */
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46831694, /* P_BRND_SD 1 */
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1841581359, /* P_TYPE_SD 2 */
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1193163244, /* P_SIZE_SD 3 */
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727633698, /* P_CNTR_SD 4 */
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933588178, /* P_RCST_SD 5 */
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804159733, /* P_CMNT_SD 6 */
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1671059989, /* PS_QTY_SD 7 */
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1051288424, /* PS_SCST_SD 8 */
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1961692154, /* PS_CMNT_SD 9 */
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1227283347, /* O_SUPP_SD 10 */
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1171034773, /* O_CLRK_SD 11 */
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276090261, /* O_CMNT_SD 12 */
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1066728069, /* O_ODATE_SD 13 */
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209208115, /* L_QTY_SD 14 */
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554590007, /* L_DCNT_SD 15 */
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721958466, /* L_TAX_SD 16 */
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1371272478, /* L_SHIP_SD 17 */
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675466456, /* L_SMODE_SD 18 */
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1095462486, /* L_CMNT_SD 19 */
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1808217256, /* L_PKEY_SD 20 */
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2095021727, /* L_SKEY_SD 21 */
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1769349045, /* L_SDTE_SD 22 */
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904914315, /* L_CDTE_SD 23 */
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373135028, /* L_RDTE_SD 24 */
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717419739, /* L_RFLG_SD 25 */
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881155353, /* C_ADDR_SD 26 */
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1489529863, /* C_NTRG_SD 27 */
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1521138112, /* C_PHNE_SD 28 */
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298370230, /* C_ABAL_SD 29 */
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1140279430, /* C_MSEG_SD 30 */
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1335826707, /* C_CMNT_SD 31 */
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706178559, /* S_ADDR_SD 32 */
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110356601, /* S_NTRG_SD 33 */
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884434366, /* S_PHNE_SD 34 */
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962338209, /* S_ABAL_SD 35 */
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1341315363, /* S_CMNT_SD 36 */
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709314158, /* P_NAME_SD 37 */
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591449447, /* O_PRIO_SD 38 */
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431918286, /* HVAR_SD 39 */
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851767375, /* O_CKEY_SD 40 */
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606179079, /* N_CMNT_SD 41 */
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1500869201, /* R_CMNT_SD 42 */
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1434868289, /* O_LCNT_SD 43 */
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263032577, /* BBB offset 44 */
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753643799, /* BBB type 45 */
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202794285, /* BBB comment 46 */
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715851524, /* BBB junk 47 */
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2095021727 /* L_OKEY_SD 48 */
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};
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/*
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* Extensions to dbgen for generation of skewed data.
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* Surajit Chaudhuri, Vivek Narasayya.
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* (Jan '99)
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*/
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/*
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* For Zipfian distribution, we need to know:
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* (a) what the current value being generated for this column is
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* (b) how many distinct values have been generated so far for this column
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* (c) how many copies of the current value must be generated.
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* (d) how many copies of the current value have been generated thus far.
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* (e) skew value being used for a column (only if user chose mixed distr.)
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* (f) multiplier for each stream.
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* (note: Global, hence initialized to 0)
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*/
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long CurrentValue[MAX_STREAM + 1];
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long NumDistinctValuesGenerated[MAX_STREAM + 1];
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long CurrentValueTarget[MAX_STREAM + 1];
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long CurrentValueCounter[MAX_STREAM + 1];
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double ColumnSkewValue[MAX_STREAM + 1];
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double Multiplier[MAX_STREAM + 1];
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#endif /* V2 */
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