void RDG_genStdout(unsigned long long size, double matchProba, double litProba, unsigned seed)
{
size_t const stdBlockSize = 128 KB;
size_t const stdDictSize = 32 KB;
BYTE* const buff = (BYTE*)malloc(stdDictSize + stdBlockSize);
U64 total = 0;
BYTE ldt[LTSIZE]; /* literals distribution table */
/* init */
if (buff==NULL) { fprintf(stderr, "datagen: error: %s \n", strerror(errno)); exit(1); }
if (litProba<=0.0) litProba = matchProba / 4.5;
memset(ldt, '0', sizeof(ldt));
RDG_fillLiteralDistrib(ldt, litProba);
SET_BINARY_MODE(stdout);
/* Generate initial dict */
RDG_genBlock(buff, stdDictSize, 0, matchProba, ldt, &seed);
/* Generate compressible data */
while (total < size) {
size_t const genBlockSize = (size_t) (MIN (stdBlockSize, size-total));
RDG_genBlock(buff, stdDictSize+stdBlockSize, stdDictSize, matchProba, ldt, &seed);
total += genBlockSize;
{ size_t const unused = fwrite(buff, 1, genBlockSize, stdout); (void)unused; }
/* update dict */
memcpy(buff, buff + stdBlockSize, stdDictSize);
}
/* cleanup */
free(buff);
}
void RDG_genOut(unsigned long long size, double matchProba, double litProba, unsigned seed)
{
BYTE buff[RDG_DICTSIZE + RDG_BLOCKSIZE];
U64 total = 0;
size_t genBlockSize = RDG_BLOCKSIZE;
void* ldctx;
/* init */
if (litProba==0.0) litProba = matchProba / 4.5;
ldctx = RDG_createLiteralDistrib(litProba);
SET_BINARY_MODE(stdout);
/* Generate dict */
RDG_genBlock(buff, RDG_DICTSIZE, 0, matchProba, ldctx, &seed);
/* Generate compressible data */
while (total < size)
{
RDG_genBlock(buff, RDG_DICTSIZE+RDG_BLOCKSIZE, RDG_DICTSIZE, matchProba, ldctx, &seed);
if (size-total < RDG_BLOCKSIZE) genBlockSize = (size_t)(size-total);
total += genBlockSize;
fwrite(buff, 1, genBlockSize, stdout);
/* update dict */
memcpy(buff, buff + RDG_BLOCKSIZE, RDG_DICTSIZE);
}
free(ldctx);
}
void RDG_genBuffer(void* buffer, size_t size, double matchProba, double litProba, unsigned seed)
{
litDistribTable lt;
if (litProba==0.0) litProba = matchProba / 4.5;
RDG_fillLiteralDistrib(lt, litProba);
RDG_genBlock(buffer, size, 0, matchProba, lt, &seed);
}
void RDG_genBuffer(void* buffer, size_t size, double matchProba, double litProba, unsigned seed)
{
void* ldctx;
if (litProba==0.0) litProba = matchProba / 4.5;
ldctx = RDG_createLiteralDistrib(litProba);
RDG_genBlock(buffer, size, 0, matchProba, ldctx, &seed);
free(ldctx);
}
void RDG_genBuffer(void* buffer, size_t size, double matchProba, double litProba, unsigned seed)
{
BYTE ldt[LTSIZE];
memset(ldt, '0', sizeof(ldt));
if (litProba<=0.0) litProba = matchProba / 4.5;
//TRACE(" percent:%5.2f%% \n", litProba*100.);
RDG_fillLiteralDistrib(ldt, litProba);
RDG_genBlock(buffer, size, 0, matchProba, ldt, &seed);
}
