tdb2: test: import tdb1's tests.

[ccan] / ccan / tdb2 / test / run-tdb1-3G-file.c

diff --git a/ccan/tdb2/test/run-tdb1-3G-file.c b/ccan/tdb2/test/run-tdb1-3G-file.c
new file mode 100644 (file)
index 0000000..6509ca3
--- /dev/null
+++ b/ccan/tdb2/test/run-tdb1-3G-file.c
@@ -0,0 +1,118 @@
+/* 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 "tdb1-logging.h"
+
+static int tdb1_expand_file_sparse(struct tdb1_context *tdb,
+                                 tdb1_off_t size,
+                                 tdb1_off_t addition)
+{
+       if (tdb->read_only || tdb->traverse_read) {
+               tdb->ecode = TDB1_ERR_RDONLY;
+               return -1;
+       }
+
+       if (ftruncate(tdb->fd, size+addition) == -1) {
+               char b = 0;
+               ssize_t written = pwrite(tdb->fd,  &b, 1, (size+addition) - 1);
+               if (written == 0) {
+                       /* try once more, potentially revealing errno */
+                       written = pwrite(tdb->fd,  &b, 1, (size+addition) - 1);
+               }
+               if (written == 0) {
+                       /* again - give up, guessing errno */
+                       errno = ENOSPC;
+               }
+               if (written != 1) {
+                       TDB1_LOG((tdb, TDB1_DEBUG_FATAL, "expand_file to %d failed (%s)\n",
+                                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 tdb1_context *tdb, TDB1_DATA key, TDB1_DATA data,
+                        void *_data)
+{
+       TDB1_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 tdb1_context *tdb;
+       TDB1_DATA key, orig_data, data;
+       uint32_t hash;
+       tdb1_off_t rec_ptr;
+       struct tdb1_record rec;
+
+       plan_tests(24);
+       tdb = tdb1_open_ex("run-36-file.tdb", 1024, TDB1_CLEAR_IF_FIRST,
+                         O_CREAT|O_TRUNC|O_RDWR, 0600, &taplogctx, NULL);
+
+       ok1(tdb);
+       tdb->methods = &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, TDB1_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_fn(&key);
+       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, TDB1_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();
+}