static void validate_file(const char *path, int number,
uint64_t *ptr_ok, uint64_t *ptr_corrupted, uint64_t *ptr_changed,
uint64_t *ptr_overwritten, uint64_t *ptr_size, int *ptr_read_all,
struct timeval *ptr_dt, int progress)
{
char *full_fn;
const char *filename;
const int num_int64 = SECTOR_SIZE >> 3;
uint64_t sector[num_int64];
FILE *f;
int fd;
size_t sectors_read;
uint64_t expected_offset;
int final_errno;
struct timeval t1, t2;
/* Progress time. */
struct timeval pt1 = { .tv_sec = -1000, .tv_usec = 0 };
*ptr_ok = *ptr_corrupted = *ptr_changed = *ptr_overwritten = 0;
full_fn = full_fn_from_number(&filename, path, number);
assert(full_fn);
printf("Validating file %s ... %s", filename, progress ? BLANK : "");
fflush(stdout);
#ifdef __CYGWIN__
/* We don't need write access, but some kernels require that
* the file descriptor passed to fdatasync(2) to be writable.
*/
f = fopen(full_fn, "rb+");
#else
f = fopen(full_fn, "rb");
#endif
if (!f)
err(errno, "Can't open file %s", full_fn);
fd = fileno(f);
assert(fd >= 0);
/* If the kernel follows our advice, f3read won't ever read from cache
* even when testing small memory cards without a remount, and
* we should have a better reading-speed measurement.
*/
assert(!fdatasync(fd));
assert(!posix_fadvise(fd, 0, 0, POSIX_FADV_DONTNEED));
/* Obtain initial time. */
assert(!gettimeofday(&t1, NULL));
/* Help the kernel to help us. */
assert(!posix_fadvise(fd, 0, 0, POSIX_FADV_SEQUENTIAL));
sectors_read = fread(sector, SECTOR_SIZE, 1, f);
final_errno = errno;
expected_offset = (uint64_t)number * GIGABYTES;
while (sectors_read > 0) {
uint64_t rn;
int error_count, i;
assert(sectors_read == 1);
rn = sector[0];
error_count = 0;
for (i = 1; error_count <= TOLERANCE && i < num_int64; i++) {
rn = random_number(rn);
if (rn != sector[i])
error_count++;
}
if (expected_offset == sector[0]) {
if (error_count == 0)
(*ptr_ok)++;
else if (error_count <= TOLERANCE)
(*ptr_changed)++;
else
(*ptr_corrupted)++;
} else if (error_count <= TOLERANCE)
(*ptr_overwritten)++;
else
(*ptr_corrupted)++;
sectors_read = fread(sector, SECTOR_SIZE, 1, f);
final_errno = errno;
expected_offset += SECTOR_SIZE;
if (progress) {
struct timeval pt2;
assert(!gettimeofday(&pt2, NULL));
/* Avoid often printouts. */
if (delay_ms(&pt1, &pt2) >= 200) {
PRINT_STATUS(CLEAR);
fflush(stdout);
pt1 = pt2;
}
}
}
assert(!gettimeofday(&t2, NULL));
update_dt(ptr_dt, &t1, &t2);
*ptr_read_all = feof(f);
*ptr_size = ftell(f);
PRINT_STATUS(progress ? CLEAR : "");
if (!*ptr_read_all) {
assert(ferror(f));
printf(" - NOT fully read due to \"%s\"",
strerror(final_errno));
}
printf("\n");
fclose(f);
free(full_fn);
}
static void report(const char *prefix, uint64_t i)
{
double f = (double) (i * SECTOR_SIZE);
const char *unit = adjust_unit(&f);
printf("%s %.2f %s (%" PRIu64 " sectors)\n", prefix, f, unit, i);
}
int
add_dt(void *handle, dt_rec_t *addp)
{
return (update_dt((dt_handle_t *)handle, NULL, addp));
}
int
modify_dt(void *handle, const dt_rec_t *origp, dt_rec_t *newp)
{
return (update_dt((dt_handle_t *)handle, origp, newp));
}
int
delete_dt(void *handle, const dt_rec_t *delp)
{
return (update_dt((dt_handle_t *)handle, delp, NULL));
}