datagen.h File Reference

#include <stddef.h>

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Functions
void	RDG_genOut (unsigned long long size, double matchProba, double litProba, unsigned seed)
void	RDG_genBuffer (void *buffer, size_t size, double matchProba, double litProba, unsigned seed)

Function Documentation

RDG_genBuffer()

void RDG_genBuffer	(	void *	buffer,
		size_t	size,
		double	matchProba,
		double	litProba,
		unsigned	seed
	)

Definition at line 155 of file datagen.c.

{
    litDistribTable lt;
    if (litProba==0.0) litProba = matchProba / 4.5;
    RDG_fillLiteralDistrib(lt, litProba);
    RDG_genBlock(buffer, size, 0, matchProba, lt, &seed);
}

References lt, RDG_fillLiteralDistrib(), and RDG_genBlock().

Referenced by BMK_benchMem(), and BMK_syntheticTest().

RDG_genOut()

void RDG_genOut	(	unsigned long long	size,
		double	matchProba,
		double	litProba,
		unsigned	seed
	)

Definition at line 165 of file datagen.c.

{
    BYTE buff[RDG_DICTSIZE + RDG_BLOCKSIZE];
    U64 total = 0;
    size_t genBlockSize = RDG_BLOCKSIZE;
    litDistribTable lt;
 
    /* init */
    if (litProba==0.0) litProba = matchProba / 4.5;
    RDG_fillLiteralDistrib(lt, litProba);
    SET_BINARY_MODE(stdout);
 
    /* Generate dict */
    RDG_genBlock(buff, RDG_DICTSIZE, 0, matchProba, lt, &seed);
 
    /* Generate compressible data */
    while (total < size) {
        RDG_genBlock(buff, RDG_DICTSIZE+RDG_BLOCKSIZE, RDG_DICTSIZE, matchProba, lt, &seed);
        if (size-total < RDG_BLOCKSIZE) genBlockSize = (size_t)(size-total);
        total += genBlockSize;
        fwrite(buff, 1, genBlockSize, stdout);  /* should check potential write error */
        /* update dict */
        memcpy(buff, buff + RDG_BLOCKSIZE, RDG_DICTSIZE);
    }
}

References lt, memcpy(), RDG_BLOCKSIZE, RDG_DICTSIZE, RDG_fillLiteralDistrib(), RDG_genBlock(), and SET_BINARY_MODE.

Referenced by main().