void
write_directory_file (void)
{
FILE *fp = listed_incremental_stream;
char buf[UINTMAX_STRSIZE_BOUND];
char *s;
if (! fp)
return;
if (fseeko (fp, 0L, SEEK_SET) != 0)
seek_error (listed_incremental_option);
if (sys_truncate (fileno (fp)) != 0)
truncate_error (listed_incremental_option);
fprintf (fp, "%s-%s-%d\n", PACKAGE_NAME, PACKAGE_VERSION,
TAR_INCREMENTAL_VERSION);
s = (TYPE_SIGNED (time_t)
? imaxtostr (start_time.tv_sec, buf)
: umaxtostr (start_time.tv_sec, buf));
fwrite (s, strlen (s) + 1, 1, fp);
s = umaxtostr (start_time.tv_nsec, buf);
fwrite (s, strlen (s) + 1, 1, fp);
if (! ferror (fp) && directory_table)
hash_do_for_each (directory_table, write_directory_file_entry, fp);
if (ferror (fp))
write_error (listed_incremental_option);
if (fclose (fp) != 0)
close_error (listed_incremental_option);
}
int
run_list_events (const char *cmd, size_t argc, char *argv[])
{
if (argc != 0) {
fprintf (stderr,
_("use 'list-events' to list event handlers\n"));
return -1;
}
hash_do_for_each (event_handlers, list_event, NULL);
return 0;
}
static void
gen_remove_all_expired (Hash_table *ht, Hash_data_freer freer, time_t now)
{
struct gen_remove_data data;
data.now = now;
data.ht = ht;
data.freer = freer;
/* Careful reading of the documentation to hash _seems_ to indicate
* that this is safe, _provided_ we use the default thresholds (in
* particular, no shrink threshold).
*/
hash_do_for_each (ht, gen_remove_if_expired, &data);
}
int
main (int argc, char **argv)
{
unsigned int i;
unsigned int k;
unsigned int table_size[] = {1, 2, 3, 4, 5, 23, 53};
Hash_table *ht;
Hash_tuning tuning;
hash_reset_tuning (&tuning);
tuning.shrink_threshold = 0.3;
tuning.shrink_factor = 0.707;
tuning.growth_threshold = 1.5;
tuning.growth_factor = 2.0;
tuning.is_n_buckets = true;
if (1 < argc)
{
unsigned int seed;
if (get_seed (argv[1], &seed) != 0)
{
fprintf (stderr, "invalid seed: %s\n", argv[1]);
exit (EXIT_FAILURE);
}
srand (seed);
}
for (i = 0; i < ARRAY_CARDINALITY (table_size); i++)
{
size_t sz = table_size[i];
ht = hash_initialize (sz, NULL, hash_pjw, hash_compare_strings, NULL);
ASSERT (ht);
insert_new (ht, "a");
{
char *str1 = strdup ("a");
char *str2;
ASSERT (str1);
str2 = hash_insert (ht, str1);
ASSERT (str1 != str2);
ASSERT (STREQ (str1, str2));
free (str1);
}
insert_new (ht, "b");
insert_new (ht, "c");
i = 0;
ASSERT (hash_do_for_each (ht, walk, &i) == 3);
ASSERT (i == 7);
{
void *buf[5] = { NULL };
ASSERT (hash_get_entries (ht, NULL, 0) == 0);
ASSERT (hash_get_entries (ht, buf, 5) == 3);
ASSERT (STREQ (buf[0], "a") || STREQ (buf[0], "b") || STREQ (buf[0], "c"));
}
ASSERT (hash_delete (ht, "a"));
ASSERT (hash_delete (ht, "a") == NULL);
ASSERT (hash_delete (ht, "b"));
ASSERT (hash_delete (ht, "c"));
ASSERT (hash_rehash (ht, 47));
ASSERT (hash_rehash (ht, 467));
/* Free an empty table. */
hash_clear (ht);
hash_free (ht);
ht = hash_initialize (sz, NULL, hash_pjw, hash_compare_strings, NULL);
ASSERT (ht);
insert_new (ht, "z");
insert_new (ht, "y");
insert_new (ht, "x");
insert_new (ht, "w");
insert_new (ht, "v");
insert_new (ht, "u");
hash_clear (ht);
ASSERT (hash_get_n_entries (ht) == 0);
hash_free (ht);
/* Test pointer hashing. */
ht = hash_initialize (sz, NULL, NULL, NULL, NULL);
ASSERT (ht);
{
char *str = strdup ("a");
ASSERT (str);
insert_new (ht, "a");
insert_new (ht, str);
ASSERT (hash_lookup (ht, str) == str);
free (str);
}
hash_free (ht);
}
hash_reset_tuning (&tuning);
tuning.shrink_threshold = 0.3;
tuning.shrink_factor = 0.707;
tuning.growth_threshold = 1.5;
tuning.growth_factor = 2.0;
tuning.is_n_buckets = true;
/* Invalid tuning. */
ht = hash_initialize (4651, &tuning, hash_pjw, hash_compare_strings,
hash_freer);
ASSERT (!ht);
/* Alternate tuning. */
tuning.growth_threshold = 0.89;
/* Run with default tuning, then with custom tuning settings. */
for (k = 0; k < 2; k++)
{
Hash_tuning const *tune = (k == 0 ? NULL : &tuning);
/* Now, each entry is malloc'd. */
ht = hash_initialize (4651, tune, hash_pjw,
hash_compare_strings, hash_freer);
ASSERT (ht);
for (i = 0; i < 10000; i++)
{
unsigned int op = rand () % 10;
switch (op)
{
case 0:
case 1:
case 2:
case 3:
case 4:
case 5:
{
char buf[50];
char const *p = uinttostr (i, buf);
char *p_dup = strdup (p);
ASSERT (p_dup);
insert_new (ht, p_dup);
}
break;
case 6:
{
size_t n = hash_get_n_entries (ht);
ASSERT (hash_rehash (ht, n + rand () % 20));
}
break;
case 7:
{
size_t n = hash_get_n_entries (ht);
size_t delta = rand () % 20;
if (delta < n)
ASSERT (hash_rehash (ht, n - delta));
}
break;
case 8:
case 9:
{
/* Delete a random entry. */
size_t n = hash_get_n_entries (ht);
if (n)
{
size_t kk = rand () % n;
void const *p;
void *v;
for (p = hash_get_first (ht); kk;
--kk, p = hash_get_next (ht, p))
{
/* empty */
}
ASSERT (p);
v = hash_delete (ht, p);
ASSERT (v);
free (v);
}
break;
}
}
ASSERT (hash_table_ok (ht));
}
hash_free (ht);
}
return 0;
}
void
muscles_m4_output (FILE *out)
{
hash_do_for_each (muscle_table, muscle_m4_output_processor, out);
}