/*
* Add bits of given value to the signature.
*/
void
signValue(BloomState *state, SignType *sign, Datum value, int attno)
{
uint32 hashVal;
int nBit,
j;
/*
* init generator with "column's" number to get "hashed" seed for new
* value. We don't want to map the same numbers from different columns
* into the same bits!
*/
mySrand(attno);
/*
* Init hash sequence to map our value into bits. the same values in
* different columns will be mapped into different bits because of step
* above
*/
hashVal = DatumGetInt32(FunctionCall1(&state->hashFn[attno], value));
mySrand(hashVal ^ myRand());
for (j = 0; j < state->opts.bitSize[attno]; j++)
{
/* prevent mutiple evaluation */
nBit = myRand() % (state->opts.bloomLength * BITSIGNTYPE);
SETBIT(sign, nBit);
}
}
int main(int argc, char* argv[])
{
int i, raw = 0, count = 100;
char* outname = NULL;
mySrand(time(NULL));
for (i = 1; i < argc; i++)
{
if (!strcmp(argv[i], "-raw"))
{
raw = 1;
continue;
}
else if (!strcmp(argv[i], "-o"))
{
if (i + 1 < argc)
{
++i;
outname = argv[i];
continue;
}
}
else if (!strcmp(argv[i], "-seed"))
{
if (i + 1 < argc)
{
++i;
mySeed = strtoul(argv[i], NULL, 0);
continue;
}
}
else if (!strcmp(argv[i], "-count"))
{
if (i + 1 < argc)
{
++i;
count = strtol(argv[i], NULL, 0);
continue;
}
}
fprintf(stderr, "Invalid or unsupported command line option '%s'\n", argv[i]);
return EXIT_FAILURE;
}
if (outname)
freopen(outname, "w", stdout);
if (!raw)
{
printf("#include <limits.h>\n");
printf("#include <stdio.h>\n");
printf("#include <stdlib.h>\n\n");
printf("// Ensure:\n");
printf("// - expected type sizes\n");
printf("extern char StAtIcAsSeRt[(CHAR_BIT == 8) ? 1 : -1];\n");
printf("extern char StAtIcAsSeRt[(sizeof(int) == 4) ? 1 : -1];\n");
printf("\n");
}
printf("int errors = 0;\n\n");
for (i = 1; i <= count; i++)
GenTestCase(i);
printf("int main(void)\n{\n");
for (i = 1; i <= count; i++)
printf(" test%d();\n", i);
printf(" if (errors)\n { printf(\"%%d test(s) failed\\n\", errors); ");
if (!raw)
printf("return EXIT_FAILURE; ");
else
printf("return 1; ");
printf("}\n");
printf(" printf(\"All tests passed\\n\");\n");
printf(" return 0;\n}\n");
return 0;
}
