static void
init_local(struct hast_resource *res)
{
if (metadata_read(res, true) < 0)
exit(EX_NOINPUT);
}
int main(int argc, char** argv)
{
FILE* f;
metadata_t* meta;
fp_context_t* context;
struct sort_config sc;
dataset_t* ds;
char target[256];
stream_t* stream;
config_t conf;
external_dataset_t* ext;
int i;
if(argc < 2)
{
printf("Barf!\n");
exit(-1);
}
if((f = fopen(argv[1], "r")) == NULL)
{
printf("Cannot open dataset file %s.\n", argv[1]);
return -1;
}
meta = metadata_read(f);
sc.verbose = 1;
sc.normalize = 0;
sc.denormalize = 0;
sc.benchmark = 1;
sc.find_order = ITERATIVE;
sc.index = KEEP;
sc.cmp = HILBERT;
sc.print = stdout;
context = fp_create_context(&sc, meta->dimz, meta->dimf, meta->start_order);
ds = dataset_read(f, meta, context);
fclose(f);
dataset_print(ds, FALSE);
strcpy(target, argv[1]);
strcat(target, ".stream");
printf("Number of records: %d\n", ds->n_records);
printf("Record size: %d\n", context->record_size);
conf.memory_size = 1000;
conf.block_size = 0x100;
conf.record_size = context->record_size;
stream = stream_create(&conf, target);
stream_open(stream, O_CREAT | O_TRUNC | O_SYNC | O_WRONLY);
dataset_convert(ds, stream);
stream_close(stream);
stream_open(stream, O_SYNC | O_RDONLY);
ext = external_dataset_create(stream, meta, ds->n_records);
for(i = 0; i < ds->n_records / MEMORY_RECORDS(stream); i++)
{
memory_read(stream, ext->mem->records, MEMORY_RECORDS(stream));
ext->mem->n_records = MEMORY_RECORDS(stream);
dataset_print(ext->mem, FALSE);
}
if(ds->n_records % MEMORY_RECORDS(stream))
{
memory_read(stream, ext->mem->records, ds->n_records % MEMORY_RECORDS(stream));
ext->mem->n_records = ds->n_records % MEMORY_RECORDS(stream);
dataset_print(ext->mem, FALSE);
}
printf("Stream position: %ld vs. %ld\n", stream->pos, stream_tell(stream));
external_dataset_sort(ext);
external_dataset_destroy(ext);
stream_destroy(stream);
stats_print();
dataset_destroy(ds);
fp_destroy_context(context);
metadata_destroy(meta);
return 0;
}
