corosync/test/testsam.c

/*
 * Copyright (c) 2009-2025 Red Hat, Inc.
 *
 * All rights reserved.
 *
 * Author: Jan Friesse (jfriesse@redhat.com)
 *
 * This software licensed under BSD license, the text of which follows:
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *
 * - Redistributions of source code must retain the above copyright notice,
 *   this list of conditions and the following disclaimer.
 * - Redistributions in binary form must reproduce the above copyright notice,
 *   this list of conditions and the following disclaimer in the documentation
 *   and/or other materials provided with the distribution.
 * - Neither the name of the Red Hat, Inc. nor the names of its
 *   contributors may be used to endorse or promote products derived from this
 *   software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
 * THE POSSIBILITY OF SUCH DAMAGE.
 */

/*
 * Provides test of SAM API
 */

#include <config.h>

#include <sys/types.h>
#include <sys/resource.h>

#include <limits.h>
#include <pthread.h>
#include <stdio.h>
#include <stdint.h>
#include <stdlib.h>
#include <unistd.h>
#include <corosync/corotypes.h>
#include <corosync/sam.h>
#include <signal.h>
#include <string.h>
#include <sys/wait.h>
#include <corosync/cmap.h>

static int test_sig_delivered = 0;
static int test_hc_cb_count = 0;

/*
 * First test will just register SAM, with policy restart. First instance will
 * sleep one second, send hc and sleep another 3 seconds. This should force restart.
 * Second instance will sleep one second, send hc, stop hc and sleep 3 seconds.
 * Then start hc again and sleep 3 seconds. This should force restart again.
 * Last instance just calls initialize again. This should end with error.
 * Then call start, followed by stop and start again. Finally, we will call finalize
 * twice. One should succeed, second should fail. After this, we will call every function
 * (none should succeed).
 */
static int test_basics (void)
{
	cs_error_t error;
	unsigned int instance_id;
	int i;

	printf ("%s: initialize\n", __FUNCTION__);
	error = sam_initialize (2000, SAM_RECOVERY_POLICY_RESTART);
	if (error != CS_OK) {
		fprintf (stderr, "Can't initialize SAM API. Error %d\n", error);
		return 1;
	}
	printf ("%s: register\n", __FUNCTION__);
	error = sam_register (&instance_id);
	if (error != CS_OK) {
		fprintf (stderr, "Can't register. Error %d\n", error);
		return 1;
	}

	if (instance_id == 1 || instance_id == 2) {
		printf ("%s iid %d: start\n", __FUNCTION__, instance_id);
		error = sam_start ();
		if (error != CS_OK) {
			fprintf (stderr, "Can't start hc. Error %d\n", error);
			return 1;
		}

		for (i = 0; i < 10; i++) {
			printf ("%s iid %d: sleep 1\n", __FUNCTION__, instance_id);
			sleep (1);

			printf ("%s iid %d: hc send\n", __FUNCTION__, instance_id);
			error = sam_hc_send ();
			if (error != CS_OK) {
				fprintf (stderr, "Can't send hc. Error %d\n", error);
				return 1;
			}
		}

		if (instance_id == 2) {
			printf ("%s iid %d: stop\n", __FUNCTION__, instance_id);
			error = sam_stop ();

			if (error != CS_OK) {
				fprintf (stderr, "Can't stop hc. Error %d\n", error);
				return 1;
			}
		}

		printf ("%s iid %d: sleep 3\n", __FUNCTION__, instance_id);
		sleep (3);

		if (instance_id == 1) {
			printf ("%s iid %d: Failed. Wasn't killed.\n", __FUNCTION__, instance_id);

			return 1;
		}

		printf ("%s iid %d: start\n", __FUNCTION__, instance_id);
		error = sam_start ();
		if (error != CS_OK) {
			fprintf (stderr, "Can't start hc. Error %d\n", error);
			return 1;
		}

		printf ("%s iid %d: sleep 3\n", __FUNCTION__, instance_id);
		sleep (3);
		return 0;
	}

	if (instance_id == 3) {
		error = sam_initialize (2000, SAM_RECOVERY_POLICY_RESTART);
		if (error == CS_OK) {
			fprintf (stderr, "Can initialize SAM API after initialization");
			return 1;
		}

		error = sam_start ();
		if (error != CS_OK) {
			fprintf (stderr, "Can't start hc. Error %d\n", error);
			return 1;
		}
		error = sam_stop ();
		if (error != CS_OK) {
			fprintf (stderr, "Can't stop hc. Error %d\n", error);
			return 1;
		}
		error = sam_finalize ();
		if (error != CS_OK) {
			fprintf (stderr, "Can't finalize sam. Error %d\n", error);
			return 1;
		}
		error = sam_finalize ();
		if (error == CS_OK) {
			fprintf (stderr, "Can finalize sam after finalization!\n");
			return 1;
		}

		if (sam_initialize (2, SAM_RECOVERY_POLICY_RESTART) == CS_OK ||
			sam_start () == CS_OK || sam_stop () == CS_OK ||
			sam_register (NULL) == CS_OK || sam_hc_send () == CS_OK ||
			sam_hc_callback_register (NULL) == CS_OK) {

			fprintf (stderr, "Can call one of function after finalization!\n");

			return 1;
		}

		return 0;
	}

	return 1;
}


static void test_signal_handler (int sig) {
	printf ("%s\n", __FUNCTION__);

	test_sig_delivered = 1;
}

/*
 * This tests recovery policy quit and callback.
 */
static int test_signal (void) {
	cs_error_t error;
	unsigned int instance_id;

	test_sig_delivered = 0;

	printf ("%s: initialize\n", __FUNCTION__);
	error = sam_initialize (2000, SAM_RECOVERY_POLICY_QUIT);
	if (error != CS_OK) {
		fprintf (stderr, "Can't initialize SAM API. Error %d\n", error);
		return 1;
	}
	printf ("%s: register\n", __FUNCTION__);
	error = sam_register (&instance_id);
	if (error != CS_OK) {
		fprintf (stderr, "Can't register. Error %d\n", error);
		return 1;
	}

	if (instance_id == 1) {
		signal (SIGTERM, test_signal_handler);

		printf ("%s iid %d: start\n", __FUNCTION__, instance_id);
		error = sam_start ();
		if (error != CS_OK) {
			fprintf (stderr, "Can't start hc. Error %d\n", error);
			return 1;
		}

		printf ("%s iid %d: sleep 1\n", __FUNCTION__, instance_id);
		sleep (1);

		printf ("%s iid %d: hc send\n", __FUNCTION__, instance_id);
		error = sam_hc_send ();
		if (error != CS_OK) {
			fprintf (stderr, "Can't send hc. Error %d\n", error);
			return 1;
		}


		printf ("%s iid %d: wait for delivery of signal\n", __FUNCTION__, instance_id);
		while (!test_sig_delivered) {
			sleep (1);
		}

		printf ("%s iid %d: wait for real kill\n", __FUNCTION__, instance_id);

		sleep (3);
	}

	return 1;
}


/*
 * Smoke test. This has no time limit, just restart process
 * when it dies.
 */
static int test_smoke (void) {
	cs_error_t error;
	unsigned int instance_id;
	struct rlimit lim;

	lim.rlim_cur = lim.rlim_max = 0;

	/*
	 * Try to turn off core creation
	 */
	setrlimit(RLIMIT_CORE, &lim);

	printf ("%s: initialize\n", __FUNCTION__);
	error = sam_initialize (0, SAM_RECOVERY_POLICY_RESTART);
	if (error != CS_OK) {
		fprintf (stderr, "Can't initialize SAM API. Error %d\n", error);
		return 1;
	}
	printf ("%s: register\n", __FUNCTION__);
	error = sam_register (&instance_id);
	if (error != CS_OK) {
		fprintf (stderr, "Can't register. Error %d\n", error);
		return 1;
	}

	if (instance_id < 100) {
		printf ("%s iid %d: start\n", __FUNCTION__, instance_id);
		error = sam_start ();
		if (error != CS_OK) {
			fprintf (stderr, "Can't start hc. Error %d\n", error);
			return 1;
		}

		printf ("%s iid %d: Sending signal\n", __FUNCTION__, instance_id);
		kill(getpid(), SIGSEGV);
		return 1;
	}

	return 0;

}

/*
 * Test sam_data_store, sam_data_restore and sam_data_getsize
 */
static int test_data_store_restore (void)
{
	size_t size;
	cs_error_t err;
	int i;
	unsigned int instance_id;
	char saved_data[128];
	char saved_data2[128];

	printf ("%s: sam_data_getsize 1\n", __FUNCTION__);
	err = sam_data_getsize (&size);
	if (err != CS_ERR_BAD_HANDLE) {
		fprintf (stderr, "Test should return CS_ERR_BAD_HANDLE. Error returned %d\n", err);
		return 1;
	}

	printf ("%s: sam_data_getsize 2\n", __FUNCTION__);
	err = sam_data_getsize (NULL);
	if (err != CS_ERR_INVALID_PARAM) {
		fprintf (stderr, "Test should return CS_ERR_INVALID_PARAM. Error returned %d\n", err);
		return 1;
	}

	printf ("%s: sam_data_store 1\n", __FUNCTION__);
	err = sam_data_store (NULL, 0);
	if (err != CS_ERR_BAD_HANDLE) {
		fprintf (stderr, "Test should return CS_ERR_BAD_HANDLE. Error returned %d\n", err);
		return 1;
	}

	printf ("%s: sam_data_restore 1\n", __FUNCTION__);
	err = sam_data_restore (saved_data, sizeof (saved_data));
	if (err != CS_ERR_BAD_HANDLE) {
		fprintf (stderr, "Test should return CS_ERR_BAD_HANDLE. Error returned %d\n", err);
		return 1;
	}

	printf ("%s: sam_initialize\n", __FUNCTION__);
	err = sam_initialize (0, SAM_RECOVERY_POLICY_RESTART);
	if (err != CS_OK) {
		fprintf (stderr, "Can't initialize SAM API. Error %d\n", err);
		return 1;
	}

	printf ("%s: sam_data_getsize 3\n", __FUNCTION__);
	err = sam_data_getsize (&size);
	if (err != CS_OK) {
		fprintf (stderr, "Test should return CS_ERR_BAD_HANDLE. Error returned %d\n", err);
		return 1;
	}
	if (size != 0) {
		fprintf (stderr, "Test should return size of 0. Returned %zx\n", size);
		return 1;
	}

	printf ("%s: sam_data_restore 2\n", __FUNCTION__);
	err = sam_data_restore (NULL, sizeof (saved_data));
	if (err != CS_ERR_INVALID_PARAM) {
		fprintf (stderr, "Test should return CS_ERR_INVALID_PARAM. Error returned %d\n", err);
		return 1;
	}

	/*
	 * Store some real data
	 */
	for (i = 0; i < sizeof (saved_data); i++) {
		saved_data[i] = (char)(i + 5);
	}

	printf ("%s: sam_data_store 2\n", __FUNCTION__);
	err = sam_data_store (saved_data, sizeof (saved_data));
	if (err != CS_OK) {
		fprintf (stderr, "Test should return CS_OK. Error returned %d\n", err);
		return 1;
	}

	printf ("%s: sam_data_getsize 4\n", __FUNCTION__);
	err = sam_data_getsize (&size);
	if (err != CS_OK) {
		fprintf (stderr, "Test should return CS_OK. Error returned %d\n", err);
		return 1;
	}
	if (size != sizeof (saved_data)) {
		fprintf (stderr, "Test should return size of 0. Returned %zx\n", size);
		return 1;
	}

	printf ("%s: sam_data_restore 3\n", __FUNCTION__);
	err = sam_data_restore (saved_data2, sizeof (saved_data2) - 1);
	if (err != CS_ERR_INVALID_PARAM) {
		fprintf (stderr, "Test should return CS_ERR_INVALID_PARAM. Error returned %d\n", err);
		return 1;
	}

	printf ("%s: sam_data_restore 4\n", __FUNCTION__);
	err = sam_data_restore (saved_data2, sizeof (saved_data2));
	if (err != CS_OK) {
		fprintf (stderr, "Test should return CS_OK. Error returned %d\n", err);
		return 1;
	}

	if (memcmp (saved_data, saved_data2, sizeof (saved_data2)) != 0) {
		fprintf (stderr, "Retored data are not same\n");
		return 1;
	}

	memset (saved_data2, 0, sizeof (saved_data2));

	printf ("%s: sam_data_store 3\n", __FUNCTION__);
	err = sam_data_store (NULL, 1);
	if (err != CS_OK) {
		fprintf (stderr, "Test should return CS_OK. Error returned %d\n", err);
		return 1;
	}

	printf ("%s: sam_data_getsize 5\n", __FUNCTION__);
	err = sam_data_getsize (&size);
	if (err != CS_OK) {
		fprintf (stderr, "Test should return CS_OK. Error returned %d\n", err);
		return 1;
	}
	if (size != 0) {
		fprintf (stderr, "Test should return size of 0. Returned %zx\n", size);
		return 1;
	}

	printf ("%s: sam_data_store 4\n", __FUNCTION__);
	err = sam_data_store (saved_data, sizeof (saved_data));
	if (err != CS_OK) {
		fprintf (stderr, "Test should return CS_OK. Error returned %d\n", err);
		return 1;
	}

	printf ("%s: register\n", __FUNCTION__);
	err = sam_register (&instance_id);
	if (err != CS_OK) {
		fprintf (stderr, "Can't register. Error %d\n", err);
		return 1;
	}

	if (instance_id == 1) {
		printf ("%s iid %d: sam_start\n", __FUNCTION__, instance_id);
		err = sam_start ();
		if (err != CS_OK) {
			fprintf (stderr, "Can't start hc. Error %d\n", err);
			return 1;
		}

		printf ("%s iid %d: sam_data_getsize 6\n", __FUNCTION__, instance_id);
		err = sam_data_getsize (&size);
		if (err != CS_OK) {
			fprintf (stderr, "Test should return CS_OK. Error returned %d\n", err);
			return 1;
		}
		if (size != sizeof (saved_data2)) {
			fprintf (stderr, "Test should return size of 0. Returned %zx\n", size);
			return 1;
		}

		printf ("%s iid %d: sam_data_restore 5\n", __FUNCTION__, instance_id);
		err = sam_data_restore (saved_data2, sizeof (saved_data2));
		if (err != CS_OK) {
			fprintf (stderr, "Test should return CS_OK. Error returned %d\n", err);
			return 1;
		}

		if (memcmp (saved_data, saved_data2, sizeof (saved_data2)) != 0) {
			fprintf (stderr, "Retored data are not same\n");
			return 1;
		}

		for (i = 0; i < sizeof (saved_data); i++) {
			saved_data[i] = (char)(i - 5);
		}

		printf ("%s iid %d: sam_data_store 5\n", __FUNCTION__, instance_id);
		err = sam_data_store (saved_data, sizeof (saved_data) - 7);
		if (err != CS_OK) {
			fprintf (stderr, "Test should return CS_OK. Error returned %d\n", err);
			return 1;
		}

		exit (1);
	}

	if (instance_id == 2) {
		printf ("%s iid %d: sam_start\n", __FUNCTION__, instance_id);
		err = sam_start ();
		if (err != CS_OK) {
			fprintf (stderr, "Can't start hc. Error %d\n", err);
			return 1;
		}

		printf ("%s iid %d: sam_data_getsize 7\n", __FUNCTION__, instance_id);
		err = sam_data_getsize (&size);
		if (err != CS_OK) {
			fprintf (stderr, "Test should return CS_OK. Error returned %d\n", err);
			return 1;
		}
		if (size != sizeof (saved_data2) - 7) {
			fprintf (stderr, "Test should return size of 0. Returned %zx\n", size);
			return 1;
		}

		printf ("%s iid %d: sam_data_restore 6\n", __FUNCTION__, instance_id);
		err = sam_data_restore (saved_data2, sizeof (saved_data2));
		if (err != CS_OK) {
			fprintf (stderr, "Test should return CS_OK. Error returned %d\n", err);
			return 1;
		}

		for (i = 0; i < sizeof (saved_data); i++) {
			saved_data[i] = (char)(i - 5);
		}

		if (memcmp (saved_data, saved_data2, sizeof (saved_data2) - 7) != 0) {
			fprintf (stderr, "Retored data are not same\n");
			return 1;
		}

		printf ("%s iid %d: sam_data_store 6\n", __FUNCTION__, instance_id);
		err = sam_data_store (NULL, 0);
		if (err != CS_OK) {
			fprintf (stderr, "Test should return CS_OK. Error returned %d\n", err);
			return 1;
		}

		exit (1);
	}

	if (instance_id == 3) {
		printf ("%s iid %d: sam_data_getsize 8\n", __FUNCTION__, instance_id);
		err = sam_data_getsize (&size);
		if (err != CS_OK) {
			fprintf (stderr, "Test should return CS_OK. Error returned %d\n", err);
			return 1;
		}
		if (size != 0) {
			fprintf (stderr, "Test should return size of 0. Returned %zx\n", size);
			return 1;
		}
	}

	return (0);
}

static int test_hc_cb (void)
{
	cs_error_t res;
	printf ("%s %d\n", __FUNCTION__, ++test_hc_cb_count);

	res = sam_data_store (&test_hc_cb_count, sizeof (test_hc_cb_count));
	if (res != CS_OK)
		return 1;

	if (test_hc_cb_count > 10)
		return 1;

	return 0;
}
/*
 * Test event driven healtchecking.
 */
static int test_hc (void)
{
	cs_error_t error;
	unsigned int instance_id;
	int hc_cb_count;

	printf ("%s: initialize\n", __FUNCTION__);
	error = sam_initialize (100, SAM_RECOVERY_POLICY_RESTART);
	if (error != CS_OK) {
		fprintf (stderr, "Can't initialize SAM API. Error %d\n", error);
		return 1;
	}
	printf ("%s: register\n", __FUNCTION__);
	error = sam_register (&instance_id);
	if (error != CS_OK) {
		fprintf (stderr, "Can't register. Error %d\n", error);
		return 1;
	}

	if (instance_id == 1) {
		printf ("%s iid %d: hc callback register\n", __FUNCTION__, instance_id);
		error = sam_hc_callback_register (test_hc_cb);
		if (error != CS_OK) {
			fprintf (stderr, "Can't register hc cb. Error %d\n", error);
			return 1;
		}


		printf ("%s iid %d: start\n", __FUNCTION__, instance_id);
		error = sam_start ();
		if (error != CS_OK) {
			fprintf (stderr, "Can't start hc. Error %d\n", error);
			return 1;
		}

		sleep (2);

		printf ("%s iid %d: Failed. Wasn't killed.\n", __FUNCTION__, instance_id);
		return 1;
	}

	if (instance_id == 2) {
		error = sam_data_restore (&hc_cb_count, sizeof (hc_cb_count));
		if (error != CS_OK) {
			fprintf (stderr, "sam_data_restore should return CS_OK. Error returned %d\n", error);
			return 1;
		}

		if (hc_cb_count != 11) {
			fprintf (stderr, "%s iid %d: Premature killed. hc_cb_count should be 11 and it is %d\n",
				__FUNCTION__, instance_id - 1, hc_cb_count);
			return 1;

		}
		return 0;
	}

	return 1;
}

static void test_warn_signal_handler (int sig) {
	cs_error_t error;

	printf ("%s\n", __FUNCTION__);
	test_sig_delivered++;

	if ((error = sam_data_store (&test_sig_delivered, sizeof (test_sig_delivered))) != CS_OK) {
		fprintf (stderr, "Can't store data! Error : %d\n", error);
	}
}

/*
 * Test warn signal set.
 */
static int test_warn_signal (void) {
	cs_error_t error;
	unsigned int instance_id;
	int tmp_sig_delivered;

	test_sig_delivered = 0;

	printf ("%s: initialize\n", __FUNCTION__);
	error = sam_initialize (2000, SAM_RECOVERY_POLICY_RESTART);
	if (error != CS_OK) {
		fprintf (stderr, "Can't initialize SAM API. Error %d\n", error);
		return 1;
	}
	printf ("%s: register\n", __FUNCTION__);
	error = sam_register (&instance_id);
	if (error != CS_OK) {
		fprintf (stderr, "Can't register. Error %d\n", error);
		return 1;
	}

	if (instance_id == 1) {
		error = sam_warn_signal_set (SIGUSR1);
		if (error != CS_OK) {
			fprintf (stderr, "Can't set warn signal. Error %d\n", error);
			return 1;
		}

		signal (SIGUSR1, test_warn_signal_handler);

		printf ("%s iid %d: start\n", __FUNCTION__, instance_id);
		error = sam_start ();
		if (error != CS_OK) {
			fprintf (stderr, "Can't start hc. Error %d\n", error);
			return 1;
		}

		printf ("%s iid %d: sleep 1\n", __FUNCTION__, instance_id);
		sleep (1);

		printf ("%s iid %d: hc send\n", __FUNCTION__, instance_id);
		error = sam_hc_send ();
		if (error != CS_OK) {
			fprintf (stderr, "Can't send hc. Error %d\n", error);
			return 1;
		}


		printf ("%s iid %d: wait for delivery of signal\n", __FUNCTION__, instance_id);
		while (!test_sig_delivered) {
			sleep (1);
		}

		printf ("%s iid %d: wait for real kill\n", __FUNCTION__, instance_id);

		sleep (3);

		printf ("%s iid %d: wasn't killed\n", __FUNCTION__, instance_id);
		return (1);
	}

	if (instance_id == 2) {
		error = sam_data_restore (&tmp_sig_delivered, sizeof (tmp_sig_delivered));
		if (error != CS_OK) {
			fprintf (stderr, "Can't restore data. Error %d\n", error);
			return 1;
		}

		if (tmp_sig_delivered != 1) {
			fprintf (stderr, "Previous test failed. Signal was not delivered\n");
			return 1;
		}

		error = sam_warn_signal_set (SIGKILL);
		if (error != CS_OK) {
			fprintf (stderr, "Can't set warn signal. Error %d\n", error);
			return 1;
		}

		signal (SIGUSR1, test_warn_signal_handler);

		printf ("%s iid %d: start\n", __FUNCTION__, instance_id);
		error = sam_start ();
		if (error != CS_OK) {
			fprintf (stderr, "Can't start hc. Error %d\n", error);
			return 1;
		}

		printf ("%s iid %d: sleep 1\n", __FUNCTION__, instance_id);
		sleep (1);

		printf ("%s iid %d: hc send\n", __FUNCTION__, instance_id);
		error = sam_hc_send ();
		if (error != CS_OK) {
			fprintf (stderr, "Can't send hc. Error %d\n", error);
			return 1;
		}


		printf ("%s iid %d: wait for delivery of signal\n", __FUNCTION__, instance_id);
		while (!test_sig_delivered) {
			sleep (1);
		}

		printf ("%s iid %d: wasn't killed\n", __FUNCTION__, instance_id);
		return (1);
	}

	if (instance_id == 3) {
		error = sam_data_restore (&tmp_sig_delivered, sizeof (tmp_sig_delivered));
		if (error != CS_OK) {
			fprintf (stderr, "Can't restore data. Error %d\n", error);
			return 1;
		}

		if (tmp_sig_delivered != 1) {
			fprintf (stderr, "Previous test failed. Signal WAS delivered\n");
			return 1;
		}

		return (0);
	}

	return 1;
}

static void *test_thread_sleep_exit (void *arg)
{
	/* Wait 5s */
	sleep (5);
	exit (0);
}

/*
 * Test quorum
 */
static int test_quorum (void) {
	cmap_handle_t cmap_handle;
	cs_error_t err;
	unsigned int instance_id;
	pthread_t kill_thread;
	char *str;
	uint32_t expected_votes;

	err = cmap_initialize (&cmap_handle);
	if (err != CS_OK) {
		printf ("Could not initialize Cluster Map API instance error %d. Test skipped\n", err);
		return (1);
	}


	if (cmap_get_string(cmap_handle, "quorum.provider", &str) != CS_OK) {
		printf ("Could not get \"provider\" key: %d. Test skipped\n", err);
		return (1);
	}
        if (strcmp(str, "corosync_votequorum") != 0) {
		printf ("Provider is not corosync_votequorum. Test skipped\n");
		free(str);
		return (1);
        }
	free(str);

	if (cmap_get_uint32(cmap_handle, "quorum.expected_votes", &expected_votes) != CS_OK) {
		printf ("Could not get \"expected_votes\" key: %d. Test skipped\n", err);
		return (1);
	}

	if (expected_votes != 1) {
		printf ("Expected_votes is not 1. Test skipped\n");
		return (1);
	}

	/*
	 * Set to not quorate
	 */
	err = cmap_set_uint32(cmap_handle, "quorum.expected_votes", 2);
	if (err != CS_OK) {
		printf ("Can't set map key. Error %d\n", err);
		return (2);
	}

	printf ("%s: initialize\n", __FUNCTION__);
	err = sam_initialize (2000, SAM_RECOVERY_POLICY_QUORUM_RESTART);
	if (err != CS_OK) {
		fprintf (stderr, "Can't initialize SAM API. Error %d\n", err);
		return 2;
	}

	printf ("%s: register\n", __FUNCTION__);
	err = sam_register (&instance_id);
	if (err != CS_OK) {
		fprintf (stderr, "Can't register. Error %d\n", err);
		return 2;
	}

	if (instance_id == 1) {
		/*
		 * Sam start should block forever, but 5s for us should be enough
		 */
		pthread_create (&kill_thread, NULL, test_thread_sleep_exit, NULL);

		printf ("%s iid %d: start - should block forever (waiting 5s)\n", __FUNCTION__, instance_id);
		err = sam_start ();
		if (err != CS_OK) {
			fprintf (stderr, "Can't start hc. Error %d\n", err);
			return 2;
		}

		printf ("%s iid %d: wasn't killed\n", __FUNCTION__, instance_id);
		return (2);
	}

	if (instance_id == 2) {
		/*
		 * Set to quorate
		 */
		err = cmap_set_uint32(cmap_handle, "quorum.expected_votes", 1);
		if (err != CS_OK) {
			printf ("Can't set map key. Error %d\n", err);
			return (2);
		}

		printf ("%s iid %d: start\n", __FUNCTION__, instance_id);
		err = sam_start ();
		if (err != CS_OK) {
			fprintf (stderr, "Can't start hc. Error %d\n", err);
			return 2;
		}

		/*
		 * Set corosync unquorate
		 */
		err = cmap_set_uint32(cmap_handle, "quorum.expected_votes", 2);
		if (err != CS_OK) {
			printf ("Can't set map key. Error %d\n", err);
			return (2);
		}

		printf ("%s iid %d: sleep 3\n", __FUNCTION__, instance_id);
		sleep (3);

		printf ("%s iid %d: wasn't killed\n", __FUNCTION__, instance_id);
		return (2);
	}

	if (instance_id == 3) {
		return (0);
	}

	return (2);
}

static int test_finalize_deadlock (void) {
	cs_error_t error;
	unsigned int instance_id;
	pthread_t kill_thread;

	test_sig_delivered = 0;

	printf ("%s: initialize\n", __FUNCTION__);
	error = sam_initialize (2000, SAM_RECOVERY_POLICY_RESTART);
	if (error != CS_OK) {
		fprintf (stderr, "Can't initialize SAM API. Error %d\n", error);
		return 1;
	}
	printf ("%s: register\n", __FUNCTION__);
	error = sam_register (&instance_id);
	if (error != CS_OK) {
		fprintf (stderr, "Can't register. Error %d\n", error);
		return 1;
	}

	if (instance_id == 1) {
		/*
		 * Sam finalize might block forever, but 5s for us should be enough
		 */
		pthread_create (&kill_thread, NULL, test_thread_sleep_exit, NULL);

		printf ("%s iid %d: start\n", __FUNCTION__, instance_id);
		error = sam_start ();
		if (error != CS_OK) {
			fprintf (stderr, "Can't start hc. Error %d\n", error);
			return 1;
		}

		printf ("%s iid %d: call finalize (shouldn't deadlock)\n", __FUNCTION__, instance_id);
		error = sam_finalize ();
		if (error != CS_OK) {
			fprintf (stderr, "Can't finalize sam. Error %d\n", error);
			return 1;
		}

		printf ("%s iid %d: finalize succeeded\n", __FUNCTION__, instance_id);
		return 0;
	}

	if (instance_id == 2) {
		printf ("%s iid %d: previous sam_finalize deadlocked\n", __FUNCTION__, instance_id);
	}

	return 1;
}

/*
 * Test cmap integration + quit policy
 */
static int test_cmap_quit (pid_t pid, pid_t old_pid, int test_n)
{
	cmap_handle_t cmap_handle;
	cs_error_t err;
	uint64_t tstamp1, tstamp2;
	int32_t msec_diff;
	unsigned int instance_id;
	char key_name[CMAP_KEYNAME_MAXLEN];
	char *str;

	err = cmap_initialize (&cmap_handle);
	if (err != CS_OK) {
		printf ("Could not initialize Cluster Map API instance error %d. Test skipped\n", err);
		return (1);
	}

	printf ("%s test %d\n", __FUNCTION__, test_n);

	if (test_n == 2) {
		/*
		 * Object should not exist
		 */
		printf ("%s Testing if object exists (it shouldn't)\n", __FUNCTION__);

		snprintf(key_name, CMAP_KEYNAME_MAXLEN, "resources.process.%d.state", pid);
		err = cmap_get_string(cmap_handle, key_name, &str);
		if (err == CS_OK) {
			printf ("Could find key \"%s\": %d.\n", key_name, err);
			free(str);
			return (2);
		}
	}

	if (test_n == 1 || test_n == 2) {
		printf ("%s: initialize\n", __FUNCTION__);
		err = sam_initialize (2000, SAM_RECOVERY_POLICY_QUIT | SAM_RECOVERY_POLICY_CMAP);
		if (err != CS_OK) {
			fprintf (stderr, "Can't initialize SAM API. Error %d\n", err);
			return 2;
		}

		printf ("%s: register\n", __FUNCTION__);
		err = sam_register (&instance_id);
		if (err != CS_OK) {
			fprintf (stderr, "Can't register. Error %d\n", err);
			return 2;
		}

		snprintf(key_name, CMAP_KEYNAME_MAXLEN, "resources.process.%d.recovery", pid);
		err = cmap_get_string(cmap_handle, key_name, &str);
		if (err != CS_OK) {
			printf ("Could not get \"recovery\" key: %d.\n", err);
			return (2);
		}

		if (strcmp(str, "quit") != 0) {
			printf ("Recovery key \"%s\" is not \"quit\".\n", key_name);
			free(str);
			return (2);
		}
		free(str);

		snprintf(key_name, CMAP_KEYNAME_MAXLEN, "resources.process.%d.state", pid);
		err = cmap_get_string(cmap_handle, key_name, &str);
		if (err != CS_OK) {
			printf ("Could not get \"state\" key: %d.\n", err);
			return (2);
		}

		if (strcmp(str, "stopped") != 0) {
			printf ("State key is not \"stopped\".\n");
			free(str);
			return (2);
		}
		free(str);

		printf ("%s iid %d: start\n", __FUNCTION__, instance_id);
		err = sam_start ();
		if (err != CS_OK) {
			fprintf (stderr, "Can't start hc. Error %d\n", err);
			return 2;
		}

		err = cmap_get_string(cmap_handle, key_name, &str);
		if (err != CS_OK) {
			printf ("Could not get \"state\" key: %d.\n", err);
			return (2);
		}

		if (strcmp(str, "running") != 0) {
			printf ("State key is not \"running\".\n");
			free(str);
			return (2);
		}
		free(str);

		printf ("%s iid %d: stop\n", __FUNCTION__, instance_id);
		err = sam_stop ();
		if (err != CS_OK) {
			fprintf (stderr, "Can't stop hc. Error %d\n", err);
			return 2;
		}

		err = cmap_get_string(cmap_handle, key_name, &str);
		if (err != CS_OK) {
			printf ("Could not get \"state\" key: %d.\n", err);
			return (2);
		}

		if (strcmp(str, "stopped") != 0) {
			printf ("State key is not \"stopped\".\n");
			free(str);
			return (2);
		}
		free(str);

		printf ("%s iid %d: sleeping 5\n", __FUNCTION__, instance_id);
		sleep (5);

		err = cmap_get_string(cmap_handle, key_name, &str);
		if (err != CS_OK) {
			printf ("Could not get \"state\" key: %d.\n", err);
			return (2);
		}

		if (strcmp(str, "stopped") != 0) {
			printf ("State key is not \"stopped\".\n");
			free(str);
			return (2);
		}
		free(str);

		printf ("%s iid %d: start 2\n", __FUNCTION__, instance_id);
		err = sam_start ();
		if (err != CS_OK) {
			fprintf (stderr, "Can't start hc. Error %d\n", err);
			return 2;
		}

		err = cmap_get_string(cmap_handle, key_name, &str);
		if (err != CS_OK) {
			printf ("Could not get \"state\" key: %d.\n", err);
			return (2);
		}

		if (strcmp(str, "running") != 0) {
			printf ("State key is not \"running\".\n");
			free(str);
			return (2);
		}
		free(str);

		if (test_n == 2) {
			printf ("%s iid %d: sleeping 5. Should be killed\n", __FUNCTION__, instance_id);
			sleep (5);

			return (2);
		} else {
			printf ("%s iid %d: Test HC\n", __FUNCTION__, instance_id);
			err = sam_hc_send ();
			if (err != CS_OK) {
				fprintf (stderr, "Can't send hc. Error %d\n", err);
				return 2;
			}

			snprintf(key_name, CMAP_KEYNAME_MAXLEN, "resources.process.%d.last_updated", pid);
			err = cmap_get_uint64(cmap_handle, key_name, &tstamp1);
			if (err != CS_OK) {
				printf ("Could not get \"last_updated\" key: %d.\n", err);
				return (2);
			}
			printf ("%s iid %d: Sleep 1\n", __FUNCTION__, instance_id);
			sleep (1);
			err = sam_hc_send ();
			if (err != CS_OK) {
				fprintf (stderr, "Can't send hc. Error %d\n", err);
				return 2;
			}
			sleep (1);
			err = cmap_get_uint64(cmap_handle, key_name, &tstamp2);
			if (err != CS_OK) {
				printf ("Could not get \"last_updated\" key: %d.\n", err);
				return (2);
			}
			msec_diff = (tstamp2 - tstamp1)/CS_TIME_NS_IN_MSEC;

			if (msec_diff < 500 || msec_diff > 2000) {
				printf ("Difference %d is not within <500, 2000> interval.\n", msec_diff);
				return (2);
			}

			printf ("%s iid %d: stop 2\n", __FUNCTION__, instance_id);
			err = sam_stop ();
			if (err != CS_OK) {
				fprintf (stderr, "Can't stop hc. Error %d\n", err);
				return 2;
			}

			snprintf(key_name, CMAP_KEYNAME_MAXLEN, "resources.process.%d.state", pid);
			err = cmap_get_string(cmap_handle, key_name, &str);
			if (err != CS_OK) {
				printf ("Could not get \"state\" key: %d.\n", err);
				return (2);
			}

			if (strcmp(str, "stopped") != 0) {
				printf ("State key is not \"stopped\".\n");
				free(str);
				return (2);
			}
			free(str);

			printf ("%s iid %d: exiting\n", __FUNCTION__, instance_id);
			return (0);
		}
	}

	if (test_n == 3) {
		printf ("%s Testing if status is failed\n", __FUNCTION__);

		/*
		 * Previous should be FAILED
		 */

		snprintf(key_name, CMAP_KEYNAME_MAXLEN, "resources.process.%d.state", old_pid);
		err = cmap_get_string(cmap_handle, key_name, &str);
		if (err != CS_OK) {
			printf ("Could not get \"state\" key: %d.\n", err);
			return (2);
		}

		if (strcmp(str, "failed") != 0) {
			printf ("State key is not \"failed\".\n");
			free(str);
			return (2);
		}
		free(str);

		return (0);
	}

	return (2);
}

/*
 * Test cmap integration + restart policy
 */
static int test_cmap_restart (pid_t pid, pid_t old_pid, int test_n) {
	cs_error_t err;
	cmap_handle_t cmap_handle;
	unsigned int instance_id;
	char *str;
	char key_name[CMAP_KEYNAME_MAXLEN];

	err = cmap_initialize (&cmap_handle);
	if (err != CS_OK) {
		printf ("Could not initialize Cluster Map API instance error %d. Test skipped\n", err);
		return (1);
	}

	printf ("%s test %d\n", __FUNCTION__, test_n);

	if (test_n == 1) {
		printf ("%s: initialize\n", __FUNCTION__);
		err = sam_initialize (2000, SAM_RECOVERY_POLICY_RESTART | SAM_RECOVERY_POLICY_CMAP);
		if (err != CS_OK) {
			fprintf (stderr, "Can't initialize SAM API. Error %d\n", err);
			return 2;
		}

		printf ("%s: register\n", __FUNCTION__);
		err = sam_register (&instance_id);
		if (err != CS_OK) {
			fprintf (stderr, "Can't register. Error %d\n", err);
			return 2;
		}
		printf ("%s: iid %d\n", __FUNCTION__, instance_id);

		if (instance_id < 3) {
			snprintf(key_name, CMAP_KEYNAME_MAXLEN, "resources.process.%d.recovery", pid);
			err = cmap_get_string(cmap_handle, key_name, &str);
			if (err != CS_OK) {
				printf ("Could not get \"recovery\" key: %d.\n", err);
				return (2);
			}

			if (strcmp(str, "restart") != 0) {
				printf ("Recovery key \"%s\" is not \"restart\".\n", str);
				free(str);
				return (2);
			}
			free(str);

			snprintf(key_name, CMAP_KEYNAME_MAXLEN, "resources.process.%d.state", pid);
			err = cmap_get_string(cmap_handle, key_name, &str);
			if (err != CS_OK) {
				printf ("Could not get \"state\" key: %d.\n", err);
				return (2);
			}

			if (strcmp(str, "stopped") != 0) {
				printf ("State key is not \"stopped\".\n");
				free(str);
				return (2);
			}
			free(str);

			printf ("%s iid %d: start\n", __FUNCTION__, instance_id);
			err = sam_start ();
			if (err != CS_OK) {
				fprintf (stderr, "Can't start hc. Error %d\n", err);
				return 2;
			}

			err = cmap_get_string(cmap_handle, key_name, &str);
			if (err != CS_OK) {
				printf ("Could not get \"state\" key: %d.\n", err);
				return (2);
			}

			if (strcmp(str, "running") != 0) {
				printf ("State key is not \"running\".\n");
				free(str);
				return (2);
			}
			free(str);

			printf ("%s iid %d: waiting for kill\n", __FUNCTION__, instance_id);
			sleep (10);

			return (2);
		}

		if (instance_id == 3) {
			printf ("%s iid %d: mark failed\n", __FUNCTION__, instance_id);

			err = sam_mark_failed ();
			if (err != CS_OK) {
				fprintf (stderr, "Can't mark failed. Error %d\n", err);
				return 2;
			}

			sleep (10);

			return (2);
		}

		return (2);
	}

	if (test_n == 2) {
		printf ("%s Testing if status is failed\n", __FUNCTION__);

		/*
		 * Previous should be FAILED
		 */
		snprintf(key_name, CMAP_KEYNAME_MAXLEN, "resources.process.%d.state", old_pid);
		err = cmap_get_string(cmap_handle, key_name, &str);
		if (err != CS_OK) {
			printf ("Could not get \"state\" key: %d.\n", err);
			return (2);
		}

		if (strcmp(str, "failed") != 0) {
			printf ("State key is not \"failed\".\n");
			free(str);
			return (2);
		}
		free(str);

		return (0);
	}

	return (2);
}

static int run_test(const char *test_name, int (test_func)(void), int skippable, int *all_passed, int *no_skipped)
{
	pid_t pid;
	int err;
	int stat;
	const char *res_str;

	fprintf (stderr, "Running %s test\n", test_name);
	pid = fork ();

	if (pid == -1) {
		fprintf (stderr, "Can't fork\n");

		exit(1);
	}

	if (pid == 0) {
		/*
		 * Child runs tests and sets exit code to result of test
		 */
		err = test_func ();

		/*
		 * After sam_register this is child of child
		 */
		sam_finalize ();

		exit (err);
	}

	/*
	 * Parent waits for child to run the test and return exit code
	 */
	waitpid (pid, &stat, 0);

	err = WEXITSTATUS (stat);

	if (!skippable) {
		res_str = (err == 0 ? "passed" : "failed");

		if (err != 0) {
			(*all_passed) = 0;
		}
	} else {
		res_str = (err == 0 ? "passed" : (err == 1 ? "skipped" : "failed"));

		if (err == 1) {
			(*no_skipped)++;
		} else if (err > 1) {
			(*all_passed) = 0;
		}
	}

	fprintf (stderr, "%s test %s\n", test_name, res_str);

	return (err);
}

static int run_cmap_test(const char *test_name,
    int (test_func)(pid_t pid, pid_t old_pid, int test_n),
    int no_tests, int *all_passed, int *no_skipped)
{
	pid_t pid, old_pid;
	int err;
	int stat;
	const char *res_str;
	int n;

	old_pid = 0;
	err = 0;

	fprintf (stderr, "Running %s test\n", test_name);

	for (n = 1; n <= no_tests; n++) {
		pid = fork ();

		if (pid == -1) {
			fprintf (stderr, "Can't fork\n");

			exit (2);
		}

		if (pid == 0) {
			err = test_func (getpid (), old_pid, n);
			sam_finalize ();
			exit (err);
		}

		waitpid (pid, &stat, 0);
		old_pid = pid;

		err = WEXITSTATUS (stat);
		if (err != 0) {
			break;
		}
	}

	res_str = (err == 0 ? "passed" : (err == 1 ? "skipped" : "failed"));

	if (err == 1) {
		(*no_skipped)++;
	} else if (err > 1) {
		(*all_passed) = 0;
	}

	fprintf (stderr, "%s test %s\n", test_name, res_str);

	return (err);
}

int main(int argc, char *argv[])
{
	int all_passed = 1;
	int no_skipped = 0;

	setlinebuf(stdout);

	run_test("basics", test_basics, 0, &all_passed, &no_skipped);
	run_test("signal", test_signal, 0, &all_passed, &no_skipped);
	run_test("smoke", test_smoke, 0, &all_passed, &no_skipped);
	run_test("data_store/restore", test_data_store_restore, 0, &all_passed, &no_skipped);
	run_test("hc", test_hc, 0, &all_passed, &no_skipped);
	run_test("warn_signal", test_warn_signal, 0, &all_passed, &no_skipped);
	run_test("quorum", test_quorum, 1, &all_passed, &no_skipped);
	run_test("finalize deadlock", test_finalize_deadlock, 0, &all_passed, &no_skipped);
	run_cmap_test("cmap quit", test_cmap_quit, 3, &all_passed, &no_skipped);
	run_cmap_test("cmap restart", test_cmap_restart, 2, &all_passed, &no_skipped);

	if (all_passed)
		fprintf (stderr, "All tests passed (%d skipped)\n", no_skipped);

	return (all_passed ? 0 : 1);
}