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path: root/lib/tdb2/test/api-open-multiple-times.c
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#include <ccan/tdb2/tdb2.h>
#include <ccan/tap/tap.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <stdlib.h>
#include "logging.h"

int main(int argc, char *argv[])
{
	unsigned int i, extra_messages;
	struct tdb_context *tdb, *tdb2;
	struct tdb_data key = { (unsigned char *)&i, sizeof(i) };
	struct tdb_data data = { (unsigned char *)&i, sizeof(i) };
	struct tdb_data d = { NULL, 0 }; /* Bogus GCC warning */
	int flags[] = { TDB_DEFAULT, TDB_NOMMAP,
			TDB_CONVERT, TDB_NOMMAP|TDB_CONVERT,
			TDB_VERSION1, TDB_NOMMAP|TDB_VERSION1,
			TDB_CONVERT|TDB_VERSION1,
			TDB_NOMMAP|TDB_CONVERT|TDB_VERSION1 };

	plan_tests(sizeof(flags) / sizeof(flags[0]) * 28);
	for (i = 0; i < sizeof(flags) / sizeof(flags[0]); i++) {
		tdb = tdb_open("run-open-multiple-times.tdb", flags[i],
			       O_RDWR|O_CREAT|O_TRUNC, 0600, &tap_log_attr);
		ok1(tdb);
		if (!tdb)
			continue;

		if (flags[i] & TDB_VERSION1) {
			extra_messages = 1;
		} else {
			extra_messages = 0;
		}
		tdb2 = tdb_open("run-open-multiple-times.tdb", flags[i],
				O_RDWR|O_CREAT, 0600, &tap_log_attr);
		ok1(tdb_check(tdb, NULL, NULL) == 0);
		ok1(tdb_check(tdb2, NULL, NULL) == 0);

		/* Store in one, fetch in the other. */
		ok1(tdb_store(tdb, key, data, TDB_REPLACE) == 0);
		ok1(tdb_fetch(tdb2, key, &d) == TDB_SUCCESS);
		ok1(tdb_deq(d, data));
		free(d.dptr);

		/* Vice versa, with delete. */
		ok1(tdb_delete(tdb2, key) == 0);
		ok1(tdb_fetch(tdb, key, &d) == TDB_ERR_NOEXIST);

		/* OK, now close first one, check second still good. */
		ok1(tdb_close(tdb) == 0);

		ok1(tdb_store(tdb2, key, data, TDB_REPLACE) == 0);
		ok1(tdb_fetch(tdb2, key, &d) == TDB_SUCCESS);
		ok1(tdb_deq(d, data));
		free(d.dptr);

		/* Reopen */
		tdb = tdb_open("run-open-multiple-times.tdb", flags[i],
			       O_RDWR|O_CREAT, 0600, &tap_log_attr);
		ok1(tdb);

		ok1(tdb_transaction_start(tdb2) == 0);

		/* Anything in the other one should fail. */
		ok1(tdb_fetch(tdb, key, &d) == TDB_ERR_LOCK);
		tap_log_messages -= extra_messages;
		ok1(tap_log_messages == 1);
		ok1(tdb_store(tdb, key, data, TDB_REPLACE) == TDB_ERR_LOCK);
		tap_log_messages -= extra_messages;
		ok1(tap_log_messages == 2);
		ok1(tdb_transaction_start(tdb) == TDB_ERR_LOCK);
		ok1(tap_log_messages == 3);
		ok1(tdb_chainlock(tdb, key) == TDB_ERR_LOCK);
		tap_log_messages -= extra_messages;
		ok1(tap_log_messages == 4);

		/* Transaciton should work as normal. */
		ok1(tdb_store(tdb2, key, data, TDB_REPLACE) == TDB_SUCCESS);

		/* Now... try closing with locks held. */
		ok1(tdb_close(tdb2) == 0);

		ok1(tdb_fetch(tdb, key, &d) == TDB_SUCCESS);
		ok1(tdb_deq(d, data));
		free(d.dptr);
		ok1(tdb_close(tdb) == 0);
		ok1(tap_log_messages == 4);
		tap_log_messages = 0;
	}

	return exit_status();
}