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/* We need this otherwise fcntl locking fails. */
#define _FILE_OFFSET_BITS 64
#include "tdb2-source.h"
#include <ccan/tap/tap.h>
#include <stdlib.h>
#include <err.h>
#include "logging.h"
static int tdb1_expand_file_sparse(struct tdb_context *tdb,
tdb1_off_t size,
tdb1_off_t addition)
{
if ((tdb->flags & TDB_RDONLY) || tdb->tdb1.traverse_read) {
tdb->last_error = TDB_ERR_RDONLY;
return -1;
}
if (ftruncate(tdb->file->fd, size+addition) == -1) {
char b = 0;
ssize_t written = pwrite(tdb->file->fd, &b, 1, (size+addition) - 1);
if (written == 0) {
/* try once more, potentially revealing errno */
written = pwrite(tdb->file->fd, &b, 1, (size+addition) - 1);
}
if (written == 0) {
/* again - give up, guessing errno */
errno = ENOSPC;
}
if (written != 1) {
tdb->last_error = tdb_logerr(tdb, TDB_ERR_IO, TDB_LOG_ERROR,
"expand_file to %d failed (%s)",
size+addition,
strerror(errno));
return -1;
}
}
return 0;
}
static const struct tdb1_methods large_io_methods = {
tdb1_read,
tdb1_write,
tdb1_next_hash_chain,
tdb1_oob,
tdb1_expand_file_sparse
};
static int test_traverse(struct tdb_context *tdb, TDB_DATA key, TDB_DATA data,
void *_data)
{
TDB_DATA *expect = _data;
ok1(key.dsize == strlen("hi"));
ok1(memcmp(key.dptr, "hi", strlen("hi")) == 0);
ok1(data.dsize == expect->dsize);
ok1(memcmp(data.dptr, expect->dptr, data.dsize) == 0);
return 0;
}
int main(int argc, char *argv[])
{
struct tdb_context *tdb;
TDB_DATA key, orig_data, data;
uint32_t hash;
tdb1_off_t rec_ptr;
struct tdb1_record rec;
union tdb_attribute hsize;
hsize.base.attr = TDB_ATTRIBUTE_TDB1_HASHSIZE;
hsize.base.next = &tap_log_attr;
hsize.tdb1_hashsize.hsize = 1024;
plan_tests(24);
tdb = tdb1_open("run-36-file.tdb", TDB_DEFAULT,
O_CREAT|O_TRUNC|O_RDWR, 0600, &hsize);
ok1(tdb);
tdb->tdb1.io = &large_io_methods;
/* Enlarge the file (internally multiplies by 2). */
ok1(tdb1_expand(tdb, 1500000000) == 0);
/* Put an entry in, and check it. */
key.dsize = strlen("hi");
key.dptr = (void *)"hi";
orig_data.dsize = strlen("world");
orig_data.dptr = (void *)"world";
ok1(tdb1_store(tdb, key, orig_data, TDB_INSERT) == 0);
data = tdb1_fetch(tdb, key);
ok1(data.dsize == strlen("world"));
ok1(memcmp(data.dptr, "world", strlen("world")) == 0);
free(data.dptr);
/* That currently fills at the end, make sure that's true. */
hash = tdb_hash(tdb, key.dptr, key.dsize);
rec_ptr = tdb1_find_lock_hash(tdb, key, hash, F_RDLCK, &rec);
ok1(rec_ptr);
ok1(rec_ptr > 2U*1024*1024*1024);
tdb1_unlock(tdb, TDB1_BUCKET(rec.full_hash), F_RDLCK);
/* Traverse must work. */
ok1(tdb1_traverse(tdb, test_traverse, &orig_data) == 1);
/* Delete should work. */
ok1(tdb1_delete(tdb, key) == 0);
ok1(tdb1_traverse(tdb, test_traverse, NULL) == 0);
/* Transactions should work. */
ok1(tdb1_transaction_start(tdb) == 0);
ok1(tdb1_store(tdb, key, orig_data, TDB_INSERT) == 0);
data = tdb1_fetch(tdb, key);
ok1(data.dsize == strlen("world"));
ok1(memcmp(data.dptr, "world", strlen("world")) == 0);
free(data.dptr);
ok1(tdb1_transaction_commit(tdb) == 0);
ok1(tdb1_traverse(tdb, test_traverse, &orig_data) == 1);
tdb1_close(tdb);
return exit_status();
}
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