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-rw-r--r--test/run-3G-file.c145
1 files changed, 145 insertions, 0 deletions
diff --git a/test/run-3G-file.c b/test/run-3G-file.c
new file mode 100644
index 0000000..79e291b
--- /dev/null
+++ b/test/run-3G-file.c
@@ -0,0 +1,145 @@
+#include "../common/tdb_private.h"
+#include "../common/io.c"
+#include "../common/tdb.c"
+#include "../common/lock.c"
+#include "../common/freelist.c"
+#include "../common/traverse.c"
+#include "../common/transaction.c"
+#include "../common/error.c"
+#include "../common/open.c"
+#include "../common/check.c"
+#include "../common/hash.c"
+#include "../common/mutex.c"
+#include "tap-interface.h"
+#include <stdlib.h>
+#include "logging.h"
+
+static int tdb_expand_file_sparse(struct tdb_context *tdb,
+ tdb_off_t size,
+ tdb_off_t addition)
+{
+ if (tdb->read_only || tdb->traverse_read) {
+ tdb->ecode = TDB_ERR_RDONLY;
+ return -1;
+ }
+
+ if (tdb_ftruncate(tdb, size+addition) == -1) {
+ char b = 0;
+ ssize_t written = tdb_pwrite(tdb, &b, 1, (size+addition) - 1);
+ if (written == 0) {
+ /* try once more, potentially revealing errno */
+ written = tdb_pwrite(tdb, &b, 1, (size+addition) - 1);
+ }
+ if (written == 0) {
+ /* again - give up, guessing errno */
+ errno = ENOSPC;
+ }
+ if (written != 1) {
+ TDB_LOG((tdb, TDB_DEBUG_FATAL, "expand_file to %d failed (%s)\n",
+ size+addition, strerror(errno)));
+ return -1;
+ }
+ }
+
+ return 0;
+}
+
+static const struct tdb_methods large_io_methods = {
+ tdb_read,
+ tdb_write,
+ tdb_next_hash_chain,
+ tdb_notrans_oob,
+ tdb_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 hashval;
+ tdb_off_t rec_ptr;
+ struct tdb_record rec;
+ int ret;
+
+ plan_tests(24);
+ tdb = tdb_open_ex("run-36-file.tdb", 1024, TDB_CLEAR_IF_FIRST,
+ O_CREAT|O_TRUNC|O_RDWR, 0600, &taplogctx, NULL);
+
+ ok1(tdb);
+ tdb->methods = &large_io_methods;
+
+ key.dsize = strlen("hi");
+ key.dptr = discard_const_p(uint8_t, "hi");
+ orig_data.dsize = strlen("world");
+ orig_data.dptr = discard_const_p(uint8_t, "world");
+
+ /* Enlarge the file (internally multiplies by 2). */
+ ret = tdb_expand(tdb, 1500000000);
+#ifdef HAVE_INCOHERENT_MMAP
+ /* This can fail due to mmap failure on 32 bit systems. */
+ if (ret == -1) {
+ /* These should now fail. */
+ ok1(tdb_store(tdb, key, orig_data, TDB_INSERT) == -1);
+ data = tdb_fetch(tdb, key);
+ ok1(data.dptr == NULL);
+ ok1(tdb_traverse(tdb, test_traverse, &orig_data) == -1);
+ ok1(tdb_delete(tdb, key) == -1);
+ ok1(tdb_traverse(tdb, test_traverse, NULL) == -1);
+ /* Skip the rest... */
+ for (ret = 0; ret < 24 - 6; ret++)
+ ok1(1);
+ tdb_close(tdb);
+ return exit_status();
+ }
+#endif
+ ok1(ret == 0);
+
+ /* Put an entry in, and check it. */
+ ok1(tdb_store(tdb, key, orig_data, TDB_INSERT) == 0);
+
+ data = tdb_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. */
+ hashval = tdb->hash_fn(&key);
+ rec_ptr = tdb_find_lock_hash(tdb, key, hashval, F_RDLCK, &rec);
+ ok1(rec_ptr);
+ ok1(rec_ptr > 2U*1024*1024*1024);
+ tdb_unlock(tdb, BUCKET(rec.full_hash), F_RDLCK);
+
+ /* Traverse must work. */
+ ok1(tdb_traverse(tdb, test_traverse, &orig_data) == 1);
+
+ /* Delete should work. */
+ ok1(tdb_delete(tdb, key) == 0);
+
+ ok1(tdb_traverse(tdb, test_traverse, NULL) == 0);
+
+ /* Transactions should work. */
+ ok1(tdb_transaction_start(tdb) == 0);
+ ok1(tdb_store(tdb, key, orig_data, TDB_INSERT) == 0);
+
+ data = tdb_fetch(tdb, key);
+ ok1(data.dsize == strlen("world"));
+ ok1(memcmp(data.dptr, "world", strlen("world")) == 0);
+ free(data.dptr);
+ ok1(tdb_transaction_commit(tdb) == 0);
+
+ ok1(tdb_traverse(tdb, test_traverse, &orig_data) == 1);
+ tdb_close(tdb);
+
+ return exit_status();
+}