static int
processor(uint8_t *f, int fd, size_t l)
{
uint8_t frag[33];
size_t start, off;
ssize_t scan;
int rc = EXIT_SUCCESS;
int stop = 0;
char ch = 0;
if (stdin_nobuf()) {
return EXIT_FAILURE;
}
while (1) {
if (0xa != ch) {
printf("\n> ");
}
ch = fgetc(stdin);
printf("%c", ch);
switch (ch) {
case '+':
if (readnum(&start)) {
printf("\nINVALID START\n");
break;
}
if (readnum(&off)) {
printf("\nINVALID LENGTH\n");
break;
}
printf("%lx\n", off+start);
break;
case '-':
if (readnum(&start)) {
printf("\nINVALID START\n");
break;
}
if (readnum(&off)) {
printf("\nINVALID LENGTH\n");
break;
}
printf("%lx\n", start-off);
break;
case 'e':
if (readnum(&off)) {
printf("\nINVALID OFFSET\n");
break;
}
if (-1 == expand(&f, fd, l, off)) {
stop = 1;
rc = EXIT_FAILURE;
break;
}
l += off;
printf("\nEXTENDED %lu BYTES\n", (long unsigned)off);
break;
case 'f':
if (readnum(&start) || (start >= l)) {
printf("\nINVALID START\n");
break;
}
if (readnum(&off)) {
printf("\nINVALID LENGTH\n");
break;
}
if (-1 == read_fragment(frag, off)) {
printf("\nINVALID FRAGMENT\n");
break;
}
printf("\nFIND FRAG FROM %lx SIZE %lu\n", start, off);
find_frag(f+start, l-start, start, frag, off);
break;
case 'i':
if (readnum(&start) || (start >= l)) {
printf("\nINVALID START\n");
break;
}
if (-1 == expand(&f, fd, l, 1)) {
stop = 1;
rc = EXIT_FAILURE;
break;
}
l++;
if (-1 == shift_by(f+start, l-start)) {
stop = 1;
rc = EXIT_FAILURE;
break;
}
break;
case 'l':
printf(" %lx\n", l);
break;
case 0x4:
case 'q':
printf("\nQUIT\n");
stop++;
break;
case 'r':
if (readnum(&start) || (start >=l)) {
printf("\nINVALID START\n");
break;
}
if (readnum(&off) || ((start+off) > l)) {
printf("\nINVALID OFFSET\n");
rc = EXIT_FAILURE;
break;
}
if (0 == off) {
off = (l - start);
}
printhex(f+start, off, start);
break;
case 's':
if (readnum(&start) || (start >= l)) {
printf("\nINVALID START\n");
break;
}
if (readnum(&off)) {
printf("\nINVALID LENGTH\n");
break;
}
if (-1 == read_fragment(frag, off)) {
printf("\nINVALID FRAGMENT\n");
break;
}
printf("\nSCAN FRAG FROM %lx SIZE %lu\n", start, off);
while (-1 != (scan = find_frag(f+start, l-start,
start, frag, off))) {
start += scan + 1;
}
break;
case 'w':
if (readnum(&start) || (start >=l)) {
printf("\nINVALID START\n");
break;
}
writehex(f+start, l-start);
break;
}
if (stop) {
break;
}
}
return rc;
}
/**
* In order to help generate repeatable pseudo-random results for a
* given set of input parameters, the master precalculates how many
* results will be generated for each query.
*
* @param test_params_p Pointer to test_params.
* @param query_frag_preresult_matrix Pointer to the matrix of (query,frag)
* results.
* @return 0 on success.
*/
static int precalculate_results(
struct test_params_s *test_params_p,
struct frag_preresult_s **query_frag_preresult_matrix)
{
int i, j;
unsigned int seed;
int cur_result_count = 0;
/* 1. Generate the amount of results for each query
* 2. Generate in which fragments will those results go */
for (i = 0; i < test_params_p->query_count; i++)
{
seed = i+1;
cur_result_count = generate_int_range(&seed,
test_params_p->result_count_min,
test_params_p->result_count_max);
for (j = 0; j < cur_result_count; j++)
{
query_frag_preresult_matrix[i]
[find_frag(&seed, test_params_p->total_frags)].result_count++;
}
}
/* Calculate the correct result_start location for each frag */
for (i = 0; i < test_params_p->query_count; i++)
{
for (j = 0; j < test_params_p->total_frags; j++)
{
if (j == 0)
query_frag_preresult_matrix[i][j].result_start = 0;
else
query_frag_preresult_matrix[i][j].result_start =
query_frag_preresult_matrix[i][j-1].result_start +
query_frag_preresult_matrix[i][j-1].result_count;
}
}
/* Print out the results */
#if 0
fprintf(stderr, "Results (query #, total result_count) (result_start,result_count) --- \n");
fprintf(stderr,
"Query |");
for (i = 0; i < test_params_p->total_frags; i++)
{
fprintf(stderr, " Frag %2d ", i);
}
fprintf(stderr, "\n");
for (i = 0; i < test_params_p->query_count; i++)
{
int total_result_count = 0;
for (j = 0; j < test_params_p->total_frags; j++)
total_result_count +=
query_frag_preresult_matrix[i][j].result_count;
fprintf(stderr, "(%3d,%3d) |", i, total_result_count);
for (j = 0; j < test_params_p->total_frags; j++)
{
fprintf(stderr, "(%3d,%3d) ",
query_frag_preresult_matrix[i][j].result_start,
query_frag_preresult_matrix[i][j].result_count);
}
fprintf(stderr, "\n");
}
fprintf(stderr, "\n");
#endif
return 0;
}
