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#include <ccan/tdb2/private.h> // For TDB_TOPLEVEL_HASH_BITS
#include <ccan/hash/hash.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <ccan/tdb2/tdb2.h>
#include <ccan/tap/tap.h>
#include "logging.h"
/* We rig the hash so adjacent-numbered records always clash. */
static uint64_t clash(const void *key, size_t len, uint64_t seed, void *priv)
{
return ((uint64_t)*(const unsigned int *)key)
<< (64 - TDB_TOPLEVEL_HASH_BITS - 1);
}
/* We use the same seed which we saw a failure on. */
static uint64_t fixedhash(const void *key, size_t len, uint64_t seed, void *p)
{
return hash64_stable((const unsigned char *)key, len,
*(uint64_t *)p);
}
static bool store_records(struct tdb_context *tdb)
{
int i;
struct tdb_data key = { (unsigned char *)&i, sizeof(i) };
struct tdb_data d, data = { (unsigned char *)&i, sizeof(i) };
for (i = 0; i < 1000; i++) {
if (tdb_store(tdb, key, data, TDB_REPLACE) != 0)
return false;
tdb_fetch(tdb, key, &d);
if (!tdb_deq(d, data))
return false;
free(d.dptr);
}
return true;
}
static void test_val(struct tdb_context *tdb, uint64_t val)
{
uint64_t v;
struct tdb_data key = { (unsigned char *)&v, sizeof(v) };
struct tdb_data d, data = { (unsigned char *)&v, sizeof(v) };
/* Insert an entry, then delete it. */
v = val;
/* Delete should fail. */
ok1(tdb_delete(tdb, key) == TDB_ERR_NOEXIST);
ok1(tdb_check(tdb, NULL, NULL) == 0);
/* Insert should succeed. */
ok1(tdb_store(tdb, key, data, TDB_INSERT) == 0);
ok1(tdb_check(tdb, NULL, NULL) == 0);
/* Delete should succeed. */
ok1(tdb_delete(tdb, key) == 0);
ok1(tdb_check(tdb, NULL, NULL) == 0);
/* Re-add it, then add collision. */
ok1(tdb_store(tdb, key, data, TDB_INSERT) == 0);
v = val + 1;
ok1(tdb_store(tdb, key, data, TDB_INSERT) == 0);
ok1(tdb_check(tdb, NULL, NULL) == 0);
/* Can find both? */
ok1(tdb_fetch(tdb, key, &d) == TDB_SUCCESS);
ok1(d.dsize == data.dsize);
free(d.dptr);
v = val;
ok1(tdb_fetch(tdb, key, &d) == TDB_SUCCESS);
ok1(d.dsize == data.dsize);
free(d.dptr);
/* Delete second one. */
v = val + 1;
ok1(tdb_delete(tdb, key) == 0);
ok1(tdb_check(tdb, NULL, NULL) == 0);
/* Re-add */
ok1(tdb_store(tdb, key, data, TDB_INSERT) == 0);
ok1(tdb_check(tdb, NULL, NULL) == 0);
/* Now, try deleting first one. */
v = val;
ok1(tdb_delete(tdb, key) == 0);
ok1(tdb_check(tdb, NULL, NULL) == 0);
/* Can still find second? */
v = val + 1;
ok1(tdb_fetch(tdb, key, &d) == TDB_SUCCESS);
ok1(d.dsize == data.dsize);
free(d.dptr);
/* Now, this will be ideally placed. */
v = val + 2;
ok1(tdb_store(tdb, key, data, TDB_INSERT) == 0);
ok1(tdb_check(tdb, NULL, NULL) == 0);
/* This will collide with both. */
v = val;
ok1(tdb_store(tdb, key, data, TDB_INSERT) == 0);
/* We can still find them all, right? */
ok1(tdb_fetch(tdb, key, &d) == TDB_SUCCESS);
ok1(d.dsize == data.dsize);
free(d.dptr);
v = val + 1;
ok1(tdb_fetch(tdb, key, &d) == TDB_SUCCESS);
ok1(d.dsize == data.dsize);
free(d.dptr);
v = val + 2;
ok1(tdb_fetch(tdb, key, &d) == TDB_SUCCESS);
ok1(d.dsize == data.dsize);
free(d.dptr);
/* And if we delete val + 1, that val + 2 should not move! */
v = val + 1;
ok1(tdb_delete(tdb, key) == 0);
ok1(tdb_check(tdb, NULL, NULL) == 0);
v = val;
ok1(tdb_fetch(tdb, key, &d) == TDB_SUCCESS);
ok1(d.dsize == data.dsize);
free(d.dptr);
v = val + 2;
ok1(tdb_fetch(tdb, key, &d) == TDB_SUCCESS);
ok1(d.dsize == data.dsize);
free(d.dptr);
/* Delete those two, so we are empty. */
ok1(tdb_delete(tdb, key) == 0);
v = val;
ok1(tdb_delete(tdb, key) == 0);
ok1(tdb_check(tdb, NULL, NULL) == 0);
}
int main(int argc, char *argv[])
{
unsigned int i, j;
struct tdb_context *tdb;
uint64_t seed = 16014841315512641303ULL;
union tdb_attribute clash_hattr
= { .hash = { .base = { TDB_ATTRIBUTE_HASH },
.fn = clash } };
union tdb_attribute fixed_hattr
= { .hash = { .base = { TDB_ATTRIBUTE_HASH },
.fn = fixedhash,
.data = &seed } };
int flags[] = { TDB_INTERNAL, TDB_DEFAULT, TDB_NOMMAP,
TDB_INTERNAL|TDB_CONVERT, TDB_CONVERT,
TDB_NOMMAP|TDB_CONVERT,
TDB_INTERNAL|TDB_VERSION1, TDB_VERSION1,
TDB_NOMMAP|TDB_VERSION1,
TDB_INTERNAL|TDB_CONVERT|TDB_VERSION1,
TDB_CONVERT|TDB_VERSION1,
TDB_NOMMAP|TDB_CONVERT|TDB_VERSION1 };
/* These two values gave trouble before. */
int vals[] = { 755, 837 };
clash_hattr.base.next = &tap_log_attr;
fixed_hattr.base.next = &tap_log_attr;
plan_tests(sizeof(flags) / sizeof(flags[0])
* (39 * 3 + 5 + sizeof(vals)/sizeof(vals[0])*2) + 1);
for (i = 0; i < sizeof(flags) / sizeof(flags[0]); i++) {
tdb = tdb_open("run-13-delete.tdb", flags[i],
O_RDWR|O_CREAT|O_TRUNC, 0600, &clash_hattr);
ok1(tdb);
if (!tdb)
continue;
/* Check start of hash table. */
test_val(tdb, 0);
/* Check end of hash table. */
test_val(tdb, -1ULL);
/* Check mixed bitpattern. */
test_val(tdb, 0x123456789ABCDEF0ULL);
ok1(!tdb->file || (tdb->file->allrecord_lock.count == 0
&& tdb->file->num_lockrecs == 0));
tdb_close(tdb);
/* Deleting these entries in the db gave problems. */
tdb = tdb_open("run-13-delete.tdb", flags[i],
O_RDWR|O_CREAT|O_TRUNC, 0600, &fixed_hattr);
ok1(tdb);
if (!tdb)
continue;
ok1(store_records(tdb));
ok1(tdb_check(tdb, NULL, NULL) == 0);
for (j = 0; j < sizeof(vals)/sizeof(vals[0]); j++) {
struct tdb_data key;
key.dptr = (unsigned char *)&vals[j];
key.dsize = sizeof(vals[j]);
ok1(tdb_delete(tdb, key) == 0);
ok1(tdb_check(tdb, NULL, NULL) == 0);
}
tdb_close(tdb);
}
ok1(tap_log_messages == 0);
return exit_status();
}
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