Merge branch 'master' of ctdb into 'master' of samba

Signed-off-by: Stefan Metzmacher <metze@samba.org>
Signed-off-by: Michael Adam <obnox@samba.org>

1 files changed, 833 insertions, 0 deletions

diff --git a/ctdb/lib/tevent/testsuite.c b/ctdb/lib/tevent/testsuite.c
new file mode 100644
index 0000000000..8e3f4af51c
--- /dev/null
+++ b/ctdb/lib/tevent/testsuite.c
@@ -0,0 +1,833 @@
+/* 
+   Unix SMB/CIFS implementation.
+
+   testing of the events subsystem
+
+   Copyright (C) Stefan Metzmacher 2006-2009
+   Copyright (C) Jeremy Allison    2013
+
+     ** NOTE! The following LGPL license applies to the tevent
+     ** library. This does NOT imply that all of Samba is released
+     ** under the LGPL
+
+   This library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 3 of the License, or (at your option) any later version.
+
+   This library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with this library; if not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include "includes.h"
+#include "lib/tevent/tevent.h"
+#include "system/filesys.h"
+#include "system/select.h"
+#include "system/network.h"
+#include "torture/torture.h"
+#ifdef HAVE_PTHREAD
+#include <pthread.h>
+#include <assert.h>
+#endif
+
+static int fde_count;
+
+static void fde_handler_read(struct tevent_context *ev_ctx, struct tevent_fd *f,
+			uint16_t flags, void *private_data)
+{
+	int *fd = (int *)private_data;
+	char c;
+#ifdef SA_SIGINFO
+	kill(getpid(), SIGUSR1);
+#endif
+	kill(getpid(), SIGALRM);
+
+	read(fd[0], &c, 1);
+	fde_count++;
+}
+
+static void fde_handler_write(struct tevent_context *ev_ctx, struct tevent_fd *f,
+			uint16_t flags, void *private_data)
+{
+	int *fd = (int *)private_data;
+	char c = 0;
+	write(fd[1], &c, 1);
+}
+
+
+/* These should never fire... */
+static void fde_handler_read_1(struct tevent_context *ev_ctx, struct tevent_fd *f,
+			uint16_t flags, void *private_data)
+{
+	struct torture_context *test = (struct torture_context *)private_data;
+	torture_comment(test, "fde_handler_read_1 should never fire !\n");
+	abort();
+}
+
+/* These should never fire... */
+static void fde_handler_write_1(struct tevent_context *ev_ctx, struct tevent_fd *f,
+			uint16_t flags, void *private_data)
+{
+	struct torture_context *test = (struct torture_context *)private_data;
+	torture_comment(test, "fde_handler_write_1 should never fire !\n");
+	abort();
+}
+
+static void finished_handler(struct tevent_context *ev_ctx, struct tevent_timer *te,
+			     struct timeval tval, void *private_data)
+{
+	int *finished = (int *)private_data;
+	(*finished) = 1;
+}
+
+static void count_handler(struct tevent_context *ev_ctx, struct tevent_signal *te,
+			  int signum, int count, void *info, void *private_data)
+{
+	int *countp = (int *)private_data;
+	(*countp) += count;
+}
+
+static bool test_event_context(struct torture_context *test,
+			       const void *test_data)
+{
+	struct tevent_context *ev_ctx;
+	int fd[2] = { -1, -1 };
+	const char *backend = (const char *)test_data;
+	int alarm_count=0, info_count=0;
+	struct tevent_fd *fde_read;
+	struct tevent_fd *fde_read_1;
+	struct tevent_fd *fde_write;
+	struct tevent_fd *fde_write_1;
+#ifdef SA_RESTART
+	struct tevent_signal *se1 = NULL;
+#endif
+#ifdef SA_RESETHAND
+	struct tevent_signal *se2 = NULL;
+#endif
+#ifdef SA_SIGINFO
+	struct tevent_signal *se3 = NULL;
+#endif
+	int finished=0;
+	struct timeval t;
+
+	ev_ctx = tevent_context_init_byname(test, backend);
+	if (ev_ctx == NULL) {
+		torture_comment(test, "event backend '%s' not supported\n", backend);
+		return true;
+	}
+
+	torture_comment(test, "backend '%s' - %s\n",
+			backend, __FUNCTION__);
+
+	/* reset globals */
+	fde_count = 0;
+
+	/* create a pipe */
+	pipe(fd);
+
+	fde_read = tevent_add_fd(ev_ctx, ev_ctx, fd[0], TEVENT_FD_READ,
+			    fde_handler_read, fd);
+	fde_write_1 = tevent_add_fd(ev_ctx, ev_ctx, fd[0], TEVENT_FD_WRITE,
+			    fde_handler_write_1, test);
+
+	fde_write = tevent_add_fd(ev_ctx, ev_ctx, fd[1], TEVENT_FD_WRITE,
+			    fde_handler_write, fd);
+	fde_read_1 = tevent_add_fd(ev_ctx, ev_ctx, fd[1], TEVENT_FD_READ,
+			    fde_handler_read_1, test);
+
+	tevent_fd_set_auto_close(fde_read);
+	tevent_fd_set_auto_close(fde_write);
+
+	tevent_add_timer(ev_ctx, ev_ctx, timeval_current_ofs(2,0),
+			 finished_handler, &finished);
+
+#ifdef SA_RESTART
+	se1 = tevent_add_signal(ev_ctx, ev_ctx, SIGALRM, SA_RESTART, count_handler, &alarm_count);
+	torture_assert(test, se1 != NULL, "failed to setup se1");
+#endif
+#ifdef SA_RESETHAND
+	se2 = tevent_add_signal(ev_ctx, ev_ctx, SIGALRM, SA_RESETHAND, count_handler, &alarm_count);
+	torture_assert(test, se2 != NULL, "failed to setup se2");
+#endif
+#ifdef SA_SIGINFO
+	se3 = tevent_add_signal(ev_ctx, ev_ctx, SIGUSR1, SA_SIGINFO, count_handler, &info_count);
+	torture_assert(test, se3 != NULL, "failed to setup se3");
+#endif
+
+	t = timeval_current();
+	while (!finished) {
+		errno = 0;
+		if (tevent_loop_once(ev_ctx) == -1) {
+			talloc_free(ev_ctx);
+			torture_fail(test, talloc_asprintf(test, "Failed event loop %s\n", strerror(errno)));
+		}
+	}
+
+	talloc_free(fde_read);
+	talloc_free(fde_write);
+	talloc_free(fde_read_1);
+	talloc_free(fde_write_1);
+
+	while (alarm_count < fde_count+1) {
+		if (tevent_loop_once(ev_ctx) == -1) {
+			break;
+		}
+	}
+
+	torture_comment(test, "Got %.2f pipe events/sec\n", fde_count/timeval_elapsed(&t));
+
+#ifdef SA_RESTART
+	talloc_free(se1);
+#endif
+
+	torture_assert_int_equal(test, alarm_count, 1+fde_count, "alarm count mismatch");
+
+#ifdef SA_RESETHAND
+	/*
+	 * we do not call talloc_free(se2)
+	 * because it is already gone,
+	 * after triggering the event handler.
+	 */
+#endif
+
+#ifdef SA_SIGINFO
+	talloc_free(se3);
+	torture_assert_int_equal(test, info_count, fde_count, "info count mismatch");
+#endif
+
+	talloc_free(ev_ctx);
+
+	return true;
+}
+
+struct test_event_fd1_state {
+	struct torture_context *tctx;
+	const char *backend;
+	struct tevent_context *ev;
+	int sock[2];
+	struct tevent_timer *te;
+	struct tevent_fd *fde0;
+	struct tevent_fd *fde1;
+	bool got_write;
+	bool got_read;
+	bool drain;
+	bool drain_done;
+	unsigned loop_count;
+	bool finished;
+	const char *error;
+};
+
+static void test_event_fd1_fde_handler(struct tevent_context *ev_ctx,
+				       struct tevent_fd *fde,
+				       uint16_t flags,
+				       void *private_data)
+{
+	struct test_event_fd1_state *state =
+		(struct test_event_fd1_state *)private_data;
+
+	if (state->drain_done) {
+		state->finished = true;
+		state->error = __location__;
+		return;
+	}
+
+	if (state->drain) {
+		ssize_t ret;
+		uint8_t c = 0;
+
+		if (!(flags & TEVENT_FD_READ)) {
+			state->finished = true;
+			state->error = __location__;
+			return;
+		}
+
+		ret = read(state->sock[0], &c, 1);
+		if (ret == 1) {
+			return;
+		}
+
+		/*
+		 * end of test...
+		 */
+		tevent_fd_set_flags(fde, 0);
+		state->drain_done = true;
+		return;
+	}
+
+	if (!state->got_write) {
+		uint8_t c = 0;
+
+		if (flags != TEVENT_FD_WRITE) {
+			state->finished = true;
+			state->error = __location__;
+			return;
+		}
+		state->got_write = true;
+
+		/*
+		 * we write to the other socket...
+		 */
+		write(state->sock[1], &c, 1);
+		TEVENT_FD_NOT_WRITEABLE(fde);
+		TEVENT_FD_READABLE(fde);
+		return;
+	}
+
+	if (!state->got_read) {
+		if (flags != TEVENT_FD_READ) {
+			state->finished = true;
+			state->error = __location__;
+			return;
+		}
+		state->got_read = true;
+
+		TEVENT_FD_NOT_READABLE(fde);
+		return;
+	}
+
+	state->finished = true;
+	state->error = __location__;
+	return;
+}
+
+static void test_event_fd1_finished(struct tevent_context *ev_ctx,
+				    struct tevent_timer *te,
+				    struct timeval tval,
+				    void *private_data)
+{
+	struct test_event_fd1_state *state =
+		(struct test_event_fd1_state *)private_data;
+
+	if (state->drain_done) {
+		state->finished = true;
+		return;
+	}
+
+	if (!state->got_write) {
+		state->finished = true;
+		state->error = __location__;
+		return;
+	}
+
+	if (!state->got_read) {
+		state->finished = true;
+		state->error = __location__;
+		return;
+	}
+
+	state->loop_count++;
+	if (state->loop_count > 3) {
+		state->finished = true;
+		state->error = __location__;
+		return;
+	}
+
+	state->got_write = false;
+	state->got_read = false;
+
+	tevent_fd_set_flags(state->fde0, TEVENT_FD_WRITE);
+
+	if (state->loop_count > 2) {
+		state->drain = true;
+		TALLOC_FREE(state->fde1);
+		TEVENT_FD_READABLE(state->fde0);
+	}
+
+	state->te = tevent_add_timer(state->ev, state->ev,
+				    timeval_current_ofs(0,2000),
+				    test_event_fd1_finished, state);
+}
+
+static bool test_event_fd1(struct torture_context *tctx,
+			   const void *test_data)
+{
+	struct test_event_fd1_state state;
+
+	ZERO_STRUCT(state);
+	state.tctx = tctx;
+	state.backend = (const char *)test_data;
+
+	state.ev = tevent_context_init_byname(tctx, state.backend);
+	if (state.ev == NULL) {
+		torture_skip(tctx, talloc_asprintf(tctx,
+			     "event backend '%s' not supported\n",
+			     state.backend));
+		return true;
+	}
+
+	tevent_set_debug_stderr(state.ev);
+	torture_comment(tctx, "backend '%s' - %s\n",
+			state.backend, __FUNCTION__);
+
+	/*
+	 * This tests the following:
+	 *
+	 * It monitors the state of state.sock[0]
+	 * with tevent_fd, but we never read/write on state.sock[0]
+	 * while state.sock[1] * is only used to write a few bytes.
+	 *
+	 * We have a loop:
+	 *   - we wait only for TEVENT_FD_WRITE on state.sock[0]
+	 *   - we write 1 byte to state.sock[1]
+	 *   - we wait only for TEVENT_FD_READ on state.sock[0]
+	 *   - we disable events on state.sock[0]
+	 *   - the timer event restarts the loop
+	 * Then we close state.sock[1]
+	 * We have a loop:
+	 *   - we wait for TEVENT_FD_READ/WRITE on state.sock[0]
+	 *   - we try to read 1 byte
+	 *   - if the read gets an error of returns 0
+	 *     we disable the event handler
+	 *   - the timer finishes the test
+	 */
+	state.sock[0] = -1;
+	state.sock[1] = -1;
+	socketpair(AF_UNIX, SOCK_STREAM, 0, state.sock);
+
+	state.te = tevent_add_timer(state.ev, state.ev,
+				    timeval_current_ofs(0,1000),
+				    test_event_fd1_finished, &state);
+	state.fde0 = tevent_add_fd(state.ev, state.ev,
+				   state.sock[0], TEVENT_FD_WRITE,
+				   test_event_fd1_fde_handler, &state);
+	/* state.fde1 is only used to auto close */
+	state.fde1 = tevent_add_fd(state.ev, state.ev,
+				   state.sock[1], 0,
+				   test_event_fd1_fde_handler, &state);
+
+	tevent_fd_set_auto_close(state.fde0);
+	tevent_fd_set_auto_close(state.fde1);
+
+	while (!state.finished) {
+		errno = 0;
+		if (tevent_loop_once(state.ev) == -1) {
+			talloc_free(state.ev);
+			torture_fail(tctx, talloc_asprintf(tctx,
+				     "Failed event loop %s\n",
+				     strerror(errno)));
+		}
+	}
+
+	talloc_free(state.ev);
+
+	torture_assert(tctx, state.error == NULL, talloc_asprintf(tctx,
+		       "%s", state.error));
+
+	return true;
+}
+
+struct test_event_fd2_state {
+	struct torture_context *tctx;
+	const char *backend;
+	struct tevent_context *ev;
+	struct tevent_timer *te;
+	struct test_event_fd2_sock {
+		struct test_event_fd2_state *state;
+		int fd;
+		struct tevent_fd *fde;
+		size_t num_written;
+		size_t num_read;
+		bool got_full;
+	} sock0, sock1;
+	bool finished;
+	const char *error;
+};
+
+static void test_event_fd2_sock_handler(struct tevent_context *ev_ctx,
+					struct tevent_fd *fde,
+					uint16_t flags,
+					void *private_data)
+{
+	struct test_event_fd2_sock *cur_sock =
+		(struct test_event_fd2_sock *)private_data;
+	struct test_event_fd2_state *state = cur_sock->state;
+	struct test_event_fd2_sock *oth_sock = NULL;
+	uint8_t v = 0, c;
+	ssize_t ret;
+
+	if (cur_sock == &state->sock0) {
+		oth_sock = &state->sock1;
+	} else {
+		oth_sock = &state->sock0;
+	}
+
+	if (oth_sock->num_written == 1) {
+		if (flags != (TEVENT_FD_READ | TEVENT_FD_WRITE)) {
+			state->finished = true;
+			state->error = __location__;
+			return;
+		}
+	}
+
+	if (cur_sock->num_read == oth_sock->num_written) {
+		state->finished = true;
+		state->error = __location__;
+		return;
+	}
+
+	if (!(flags & TEVENT_FD_READ)) {
+		state->finished = true;
+		state->error = __location__;
+		return;
+	}
+
+	if (oth_sock->num_read > 0) {
+		/*
+		 * There should be room to write a byte again
+		 */
+		if (!(flags & TEVENT_FD_WRITE)) {
+			state->finished = true;
+			state->error = __location__;
+			return;
+		}
+	}
+
+	if ((flags & TEVENT_FD_WRITE) && !cur_sock->got_full) {
+		v = (uint8_t)cur_sock->num_written;
+		ret = write(cur_sock->fd, &v, 1);
+		if (ret != 1) {
+			state->finished = true;
+			state->error = __location__;
+			return;
+		}
+		cur_sock->num_written++;
+		if (cur_sock->num_written > 0x80000000) {
+			state->finished = true;
+			state->error = __location__;
+			return;
+		}
+		return;
+	}
+
+	if (!cur_sock->got_full) {
+		cur_sock->got_full = true;
+
+		if (!oth_sock->got_full) {
+			/*
+			 * cur_sock is full,
+			 * lets wait for oth_sock
+			 * to be filled
+			 */
+			tevent_fd_set_flags(cur_sock->fde, 0);
+			return;
+		}
+
+		/*
+		 * oth_sock waited for cur_sock,
+		 * lets restart it
+		 */
+		tevent_fd_set_flags(oth_sock->fde,
+				    TEVENT_FD_READ|TEVENT_FD_WRITE);
+	}
+
+	ret = read(cur_sock->fd, &v, 1);
+	if (ret != 1) {
+		state->finished = true;
+		state->error = __location__;
+		return;
+	}
+	c = (uint8_t)cur_sock->num_read;
+	if (c != v) {
+		state->finished = true;
+		state->error = __location__;
+		return;
+	}
+	cur_sock->num_read++;
+
+	if (cur_sock->num_read < oth_sock->num_written) {
+		/* there is more to read */
+		return;
+	}
+	/*
+	 * we read everything, we need to remove TEVENT_FD_WRITE
+	 * to avoid spinning
+	 */
+	TEVENT_FD_NOT_WRITEABLE(cur_sock->fde);
+
+	if (oth_sock->num_read == cur_sock->num_written) {
+		/*
+		 * both directions are finished
+		 */
+		state->finished = true;
+	}
+
+	return;
+}
+
+static void test_event_fd2_finished(struct tevent_context *ev_ctx,
+				    struct tevent_timer *te,
+				    struct timeval tval,
+				    void *private_data)
+{
+	struct test_event_fd2_state *state =
+		(struct test_event_fd2_state *)private_data;
+
+	/*
+	 * this should never be triggered
+	 */
+	state->finished = true;
+	state->error = __location__;
+}
+
+static bool test_event_fd2(struct torture_context *tctx,
+			   const void *test_data)
+{
+	struct test_event_fd2_state state;
+	int sock[2];
+	uint8_t c = 0;
+
+	ZERO_STRUCT(state);
+	state.tctx = tctx;
+	state.backend = (const char *)test_data;
+
+	state.ev = tevent_context_init_byname(tctx, state.backend);
+	if (state.ev == NULL) {
+		torture_skip(tctx, talloc_asprintf(tctx,
+			     "event backend '%s' not supported\n",
+			     state.backend));
+		return true;
+	}
+
+	tevent_set_debug_stderr(state.ev);
+	torture_comment(tctx, "backend '%s' - %s\n",
+			state.backend, __FUNCTION__);
+
+	/*
+	 * This tests the following
+	 *
+	 * - We write 1 byte to each socket
+	 * - We wait for TEVENT_FD_READ/WRITE on both sockets
+	 * - When we get TEVENT_FD_WRITE we write 1 byte
+	 *   until both socket buffers are full, which
+	 *   means both sockets only get TEVENT_FD_READ.
+	 * - Then we read 1 byte until we have consumed
+	 *   all bytes the other end has written.
+	 */
+	sock[0] = -1;
+	sock[1] = -1;
+	socketpair(AF_UNIX, SOCK_STREAM, 0, sock);
+
+	/*
+	 * the timer should never expire
+	 */
+	state.te = tevent_add_timer(state.ev, state.ev,
+				    timeval_current_ofs(600, 0),
+				    test_event_fd2_finished, &state);
+	state.sock0.state = &state;
+	state.sock0.fd = sock[0];
+	state.sock0.fde = tevent_add_fd(state.ev, state.ev,
+					state.sock0.fd,
+					TEVENT_FD_READ | TEVENT_FD_WRITE,
+					test_event_fd2_sock_handler,
+					&state.sock0);
+	state.sock1.state = &state;
+	state.sock1.fd = sock[1];
+	state.sock1.fde = tevent_add_fd(state.ev, state.ev,
+					state.sock1.fd,
+					TEVENT_FD_READ | TEVENT_FD_WRITE,
+					test_event_fd2_sock_handler,
+					&state.sock1);
+
+	tevent_fd_set_auto_close(state.sock0.fde);
+	tevent_fd_set_auto_close(state.sock1.fde);
+
+	write(state.sock0.fd, &c, 1);
+	state.sock0.num_written++;
+	write(state.sock1.fd, &c, 1);
+	state.sock1.num_written++;
+
+	while (!state.finished) {
+		errno = 0;
+		if (tevent_loop_once(state.ev) == -1) {
+			talloc_free(state.ev);
+			torture_fail(tctx, talloc_asprintf(tctx,
+				     "Failed event loop %s\n",
+				     strerror(errno)));
+		}
+	}
+
+	talloc_free(state.ev);
+
+	torture_assert(tctx, state.error == NULL, talloc_asprintf(tctx,
+		       "%s", state.error));
+
+	return true;
+}
+
+#ifdef HAVE_PTHREAD
+
+static pthread_mutex_t threaded_mutex = PTHREAD_MUTEX_INITIALIZER;
+static bool do_shutdown = false;
+
+static void test_event_threaded_lock(void)
+{
+	int ret;
+	ret = pthread_mutex_lock(&threaded_mutex);
+	assert(ret == 0);
+}
+
+static void test_event_threaded_unlock(void)
+{
+	int ret;
+	ret = pthread_mutex_unlock(&threaded_mutex);
+	assert(ret == 0);
+}
+
+static void test_event_threaded_trace(enum tevent_trace_point point,
+				      void *private_data)
+{
+	switch (point) {
+	case TEVENT_TRACE_BEFORE_WAIT:
+		test_event_threaded_unlock();
+		break;
+	case TEVENT_TRACE_AFTER_WAIT:
+		test_event_threaded_lock();
+		break;
+	case TEVENT_TRACE_BEFORE_LOOP_ONCE:
+	case TEVENT_TRACE_AFTER_LOOP_ONCE:
+		break;
+	}
+}
+
+static void test_event_threaded_timer(struct tevent_context *ev,
+				      struct tevent_timer *te,
+				      struct timeval current_time,
+				      void *private_data)
+{
+	return;
+}
+
+static void *test_event_poll_thread(void *private_data)
+{
+	struct tevent_context *ev = (struct tevent_context *)private_data;
+
+	test_event_threaded_lock();
+
+	while (true) {
+		int ret;
+		ret = tevent_loop_once(ev);
+		assert(ret == 0);
+		if (do_shutdown) {
+			test_event_threaded_unlock();
+			return NULL;
+		}
+	}
+
+}
+
+static void test_event_threaded_read_handler(struct tevent_context *ev,
+					     struct tevent_fd *fde,
+					     uint16_t flags,
+					     void *private_data)
+{
+	int *pfd = (int *)private_data;
+	char c;
+	ssize_t nread;
+
+	if ((flags & TEVENT_FD_READ) == 0) {
+		return;
+	}
+
+	do {
+		nread = read(*pfd, &c, 1);
+	} while ((nread == -1) && (errno == EINTR));
+
+	assert(nread == 1);
+}
+
+static bool test_event_context_threaded(struct torture_context *test,
+					const void *test_data)
+{
+	struct tevent_context *ev;
+	struct tevent_timer *te;
+	struct tevent_fd *fde;
+	pthread_t poll_thread;
+	int fds[2];
+	int ret;
+	char c = 0;
+
+	ev = tevent_context_init_byname(test, "poll_mt");
+	torture_assert(test, ev != NULL, "poll_mt not supported");
+
+	tevent_set_trace_callback(ev, test_event_threaded_trace, NULL);
+
+	te = tevent_add_timer(ev, ev, timeval_current_ofs(5, 0),
+			      test_event_threaded_timer, NULL);
+	torture_assert(test, te != NULL, "Could not add timer");
+
+	ret = pthread_create(&poll_thread, NULL, test_event_poll_thread, ev);
+	torture_assert(test, ret == 0, "Could not create poll thread");
+
+	ret = pipe(fds);
+	torture_assert(test, ret == 0, "Could not create pipe");
+
+	poll(NULL, 0, 100);
+
+	test_event_threaded_lock();
+
+	fde = tevent_add_fd(ev, ev, fds[0], TEVENT_FD_READ,
+			    test_event_threaded_read_handler, &fds[0]);
+	torture_assert(test, fde != NULL, "Could not add fd event");
+
+	test_event_threaded_unlock();
+
+	poll(NULL, 0, 100);
+
+	write(fds[1], &c, 1);
+
+	poll(NULL, 0, 100);
+
+	test_event_threaded_lock();
+	do_shutdown = true;
+	test_event_threaded_unlock();
+
+	write(fds[1], &c, 1);
+
+	ret = pthread_join(poll_thread, NULL);
+	torture_assert(test, ret == 0, "pthread_join failed");
+
+	return true;
+}
+
+#endif
+
+struct torture_suite *torture_local_event(TALLOC_CTX *mem_ctx)
+{
+	struct torture_suite *suite = torture_suite_create(mem_ctx, "event");
+	const char **list = tevent_backend_list(suite);
+	int i;
+
+	for (i=0;list && list[i];i++) {
+		struct torture_suite *backend_suite;
+
+		backend_suite = torture_suite_create(mem_ctx, list[i]);
+
+		torture_suite_add_simple_tcase_const(backend_suite,
+					       "context",
+					       test_event_context,
+					       (const void *)list[i]);
+		torture_suite_add_simple_tcase_const(backend_suite,
+					       "fd1",
+					       test_event_fd1,
+					       (const void *)list[i]);
+		torture_suite_add_simple_tcase_const(backend_suite,
+					       "fd2",
+					       test_event_fd2,
+					       (const void *)list[i]);
+
+		torture_suite_add_suite(suite, backend_suite);
+	}
+
+#ifdef HAVE_PTHREAD
+	torture_suite_add_simple_tcase_const(suite, "threaded_poll_mt",
+					     test_event_context_threaded,
+					     NULL);
+#endif
+
+	return suite;
+}