#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 <sys/types.h>

#include <sys/wait.h>

#include <stdarg.h>

static TDB_DATA key, data;

static void log_fn(struct tdb_context *tdb, enum tdb_debug_level level,

		   const char *fmt, ...)

{

	va_list ap;

	va_start(ap, fmt);

	vfprintf(stderr, fmt, ap);

	va_end(ap);

}

static int do_child(int tdb_flags, int to, int from)

{

	struct tdb_context *tdb;

	unsigned int log_count;

	struct tdb_logging_context log_ctx = { log_fn, &log_count };

	int ret;

	char c = 0;

	tdb = tdb_open_ex("mutex1.tdb", 0, tdb_flags,

			  O_RDWR|O_CREAT, 0755, &log_ctx, NULL);

	ok(tdb, "tdb_open_ex should succeed");

	ret = tdb_chainlock(tdb, key);

	ok(ret == 0, "tdb_chainlock should succeed");

	write(to, &c, sizeof(c));

	read(from, &c, sizeof(c));

	ret = tdb_chainunlock(tdb, key);

	ok(ret == 0, "tdb_chainunlock should succeed");

	write(to, &c, sizeof(c));

	read(from, &c, sizeof(c));

	ret = tdb_allrecord_lock(tdb, F_WRLCK, TDB_LOCK_WAIT, false);

	ok(ret == 0, "tdb_allrecord_lock should succeed");

	write(to, &c, sizeof(c));

	read(from, &c, sizeof(c));

	ret = tdb_allrecord_unlock(tdb, F_WRLCK, false);

	ok(ret == 0, "tdb_allrecord_lock should succeed");

	return 0;

}

/* The code should barf on TDBs created with rwlocks. */

int main(int argc, char *argv[])

{

	struct tdb_context *tdb;

	unsigned int log_count;

	struct tdb_logging_context log_ctx = { log_fn, &log_count };

	int ret, status;

	pid_t child, wait_ret;

	int fromchild[2];

	int tochild[2];

	char c;

	int tdb_flags;

	bool runtime_support;

	runtime_support = tdb_runtime_check_for_robust_mutexes();

	if (!runtime_support) {

		skip(1, "No robust mutex support");

		return exit_status();

	}

	key.dsize = strlen("hi");

	key.dptr = discard_const_p(uint8_t, "hi");

	data.dsize = strlen("world");

	data.dptr = discard_const_p(uint8_t, "world");

	pipe(fromchild);

	pipe(tochild);

	tdb_flags = TDB_INCOMPATIBLE_HASH|

		TDB_MUTEX_LOCKING|

		TDB_CLEAR_IF_FIRST;

	child = fork();

	if (child == 0) {

		close(fromchild[0]);

		close(tochild[1]);

		return do_child(tdb_flags, fromchild[1], tochild[0]);

	}

	close(fromchild[1]);

	close(tochild[0]);

	read(fromchild[0], &c, sizeof(c));

	tdb = tdb_open_ex("mutex1.tdb", 0, tdb_flags,

			  O_RDWR|O_CREAT, 0755, &log_ctx, NULL);

	ok(tdb, "tdb_open_ex should succeed");

	write(tochild[1], &c, sizeof(c));

	read(fromchild[0], &c, sizeof(c));

	ret = tdb_allrecord_lock(tdb, F_WRLCK, TDB_LOCK_WAIT, false);

	ok(ret == 0, "tdb_allrecord_lock should succeed");

	ret = tdb_store(tdb, key, data, 0);

	ok(ret == 0, "tdb_store should succeed");

	ret = tdb_allrecord_unlock(tdb, F_WRLCK, false);

	ok(ret == 0, "tdb_allrecord_unlock should succeed");

	write(tochild[1], &c, sizeof(c));

	read(fromchild[0], &c, sizeof(c));

	write(tochild[1], &c, sizeof(c));

	ret = tdb_delete(tdb, key);

	ok(ret == 0, "tdb_delete should succeed");

	wait_ret = wait(&status);

	ok(wait_ret == child, "child should have exited correctly");

	diag("done");

	return exit_status();

}