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0ed4d53083
The SAM library provide a tool to check the health of an application. The main purpose of SAM is to restart a local process when it fails to respond to a healthcheck request in a configured time interval. git-svn-id: http://svn.fedorahosted.org/svn/corosync/trunk@2570 fd59a12c-fef9-0310-b244-a6a79926bd2f
422 lines
9.9 KiB
C
422 lines
9.9 KiB
C
/*
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* Copyright (c) 2009 Red Hat, Inc.
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*
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* All rights reserved.
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*
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* Author: Jan Friesse (jfriesse@redhat.com)
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*
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* This software licensed under BSD license, the text of which follows:
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* - Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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* - Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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* - Neither the name of the Red Hat, Inc. nor the names of its
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* contributors may be used to endorse or promote products derived from this
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* software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
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* THE POSSIBILITY OF SUCH DAMAGE.
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*/
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/*
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* Provides test of SAM API
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*/
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#include <config.h>
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#include <sys/types.h>
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#include <stdio.h>
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#include <stdint.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include <corosync/corotypes.h>
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#include <corosync/sam.h>
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#include <signal.h>
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#include <sys/wait.h>
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static int test2_sig_delivered = 0;
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static int test4_hc_cb_count = 0;
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/*
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* First test will just register SAM, with policy restart. First instance will
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* sleep one second, send hc and sleep another 3 seconds. This should force restart.
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* Second instance will sleep one second, send hc, stop hc and sleep 3 seconds.
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* Then start hc again and sleep 3 seconds. This should force restart again.
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* Last instance just calls initialize again. This should end with error.
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* Then call start, followed by stop and start again. Finally, we will call finalize
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* twice. One should succeed, second should fail. After this, we will call every function
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* (none should succeed).
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*/
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static int test1 (void)
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{
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cs_error_t error;
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unsigned int instance_id;
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int i;
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printf ("%s: initialize\n", __FUNCTION__);
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error = sam_initialize (2000, SAM_RECOVERY_POLICY_RESTART);
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if (error != CS_OK) {
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fprintf (stderr, "Can't initialize SAM API. Error %d\n", error);
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return 1;
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}
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printf ("%s: register\n", __FUNCTION__);
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error = sam_register (&instance_id);
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if (error != CS_OK) {
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fprintf (stderr, "Can't register. Error %d\n", error);
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return 1;
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}
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if (instance_id == 1 || instance_id == 2) {
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printf ("%s iid %d: start\n", __FUNCTION__, instance_id);
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error = sam_start ();
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if (error != CS_OK) {
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fprintf (stderr, "Can't start hc. Error %d\n", error);
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return 1;
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}
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for (i = 0; i < 10; i++) {
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printf ("%s iid %d: sleep 1\n", __FUNCTION__, instance_id);
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sleep (1);
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printf ("%s iid %d: hc send\n", __FUNCTION__, instance_id);
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error = sam_hc_send ();
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if (error != CS_OK) {
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fprintf (stderr, "Can't send hc. Error %d\n", error);
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return 1;
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}
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}
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if (instance_id == 2) {
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printf ("%s iid %d: stop\n", __FUNCTION__, instance_id);
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error = sam_stop ();
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if (error != CS_OK) {
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fprintf (stderr, "Can't send hc. Error %d\n", error);
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return 1;
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}
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}
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printf ("%s iid %d: sleep 3\n", __FUNCTION__, instance_id);
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sleep (3);
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printf ("%s iid %d: start\n", __FUNCTION__, instance_id);
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error = sam_start ();
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if (error != CS_OK) {
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fprintf (stderr, "Can't start hc. Error %d\n", error);
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return 1;
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}
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printf ("%s iid %d: sleep 3\n", __FUNCTION__, instance_id);
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sleep (3);
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return 0;
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}
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if (instance_id == 3) {
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error = sam_initialize (2000, SAM_RECOVERY_POLICY_RESTART);
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if (error == CS_OK) {
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fprintf (stderr, "Can initialize SAM API after initialization");
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return 1;
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}
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error = sam_start ();
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if (error != CS_OK) {
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fprintf (stderr, "Can't start hc. Error %d\n", error);
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return 1;
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}
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error = sam_stop ();
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if (error != CS_OK) {
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fprintf (stderr, "Can't stop hc. Error %d\n", error);
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return 1;
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}
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error = sam_finalize ();
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if (error != CS_OK) {
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fprintf (stderr, "Can't finalize sam. Error %d\n", error);
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return 1;
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}
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error = sam_finalize ();
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if (error == CS_OK) {
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fprintf (stderr, "Can finalize sam after finalization!\n");
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return 1;
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}
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if (sam_initialize (2, SAM_RECOVERY_POLICY_RESTART) == CS_OK ||
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sam_start () == CS_OK || sam_stop () == CS_OK ||
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sam_register (NULL) == CS_OK || sam_hc_send () == CS_OK ||
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sam_hc_callback_register (NULL) == CS_OK) {
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fprintf (stderr, "Can call one of function after finalization!\n");
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return 1;
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}
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return 0;
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}
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return 1;
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}
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static void test2_signal (int sig) {
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printf ("%s\n", __FUNCTION__);
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test2_sig_delivered = 1;
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}
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/*
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* This tests recovery policy quit and callback.
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*/
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static int test2 (void) {
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cs_error_t error;
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unsigned int instance_id;
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printf ("%s: initialize\n", __FUNCTION__);
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error = sam_initialize (2000, SAM_RECOVERY_POLICY_QUIT);
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if (error != CS_OK) {
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fprintf (stderr, "Can't initialize SAM API. Error %d\n", error);
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return 1;
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}
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printf ("%s: register\n", __FUNCTION__);
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error = sam_register (&instance_id);
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if (error != CS_OK) {
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fprintf (stderr, "Can't register. Error %d\n", error);
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return 1;
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}
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if (instance_id == 1) {
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signal (SIGTERM, test2_signal);
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printf ("%s iid %d: start\n", __FUNCTION__, instance_id);
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error = sam_start ();
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if (error != CS_OK) {
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fprintf (stderr, "Can't start hc. Error %d\n", error);
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return 1;
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}
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printf ("%s iid %d: sleep 1\n", __FUNCTION__, instance_id);
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sleep (1);
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printf ("%s iid %d: hc send\n", __FUNCTION__, instance_id);
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error = sam_hc_send ();
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if (error != CS_OK) {
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fprintf (stderr, "Can't send hc. Error %d\n", error);
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return 1;
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}
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printf ("%s iid %d: wait for delivery of signal\n", __FUNCTION__, instance_id);
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while (!test2_sig_delivered) {
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sleep (1);
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}
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printf ("%s iid %d: wait for real kill\n", __FUNCTION__, instance_id);
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sleep (3);
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}
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return 1;
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}
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/*
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* Smoke test. Better to turn off coredump ;) This has no time limit, just restart process
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* when it dies.
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*/
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static int test3 (void) {
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cs_error_t error;
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unsigned int instance_id;
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int tmp1, tmp2, tmp3;
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printf ("%s: initialize\n", __FUNCTION__);
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error = sam_initialize (0, SAM_RECOVERY_POLICY_RESTART);
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if (error != CS_OK) {
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fprintf (stderr, "Can't initialize SAM API. Error %d\n", error);
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return 1;
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}
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printf ("%s: register\n", __FUNCTION__);
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error = sam_register (&instance_id);
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if (error != CS_OK) {
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fprintf (stderr, "Can't register. Error %d\n", error);
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return 1;
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}
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if (instance_id < 100) {
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printf ("%s iid %d: start\n", __FUNCTION__, instance_id);
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error = sam_start ();
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if (error != CS_OK) {
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fprintf (stderr, "Can't start hc. Error %d\n", error);
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return 1;
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}
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printf ("%s iid %d: divide by zero\n", __FUNCTION__, instance_id);
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tmp2 = rand ();
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tmp3 = 0;
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tmp1 = tmp2 / tmp3;
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return 1;
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}
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return 0;
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}
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static int test4_hc_cb (void)
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{
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printf ("%s %d\n", __FUNCTION__, ++test4_hc_cb_count);
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if (test4_hc_cb_count > 10)
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return 1;
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return 0;
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}
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/*
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* Test event driven healtchecking.
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*/
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static int test4 (void)
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{
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cs_error_t error;
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unsigned int instance_id;
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printf ("%s: initialize\n", __FUNCTION__);
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error = sam_initialize (100, SAM_RECOVERY_POLICY_RESTART);
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if (error != CS_OK) {
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fprintf (stderr, "Can't initialize SAM API. Error %d\n", error);
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return 1;
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}
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printf ("%s: register\n", __FUNCTION__);
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error = sam_register (&instance_id);
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if (error != CS_OK) {
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fprintf (stderr, "Can't register. Error %d\n", error);
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return 1;
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}
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if (instance_id == 1) {
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printf ("%s iid %d: hc callback register\n", __FUNCTION__, instance_id);
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error = sam_hc_callback_register (test4_hc_cb);
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if (error != CS_OK) {
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fprintf (stderr, "Can't register hc cb. Error %d\n", error);
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return 1;
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}
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printf ("%s iid %d: start\n", __FUNCTION__, instance_id);
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error = sam_start ();
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if (error != CS_OK) {
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fprintf (stderr, "Can't start hc. Error %d\n", error);
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return 1;
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}
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sleep (2);
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printf ("%s iid %d: Failed. Wasn't killed.\n", __FUNCTION__, instance_id);
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return 1;
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}
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if (instance_id == 2) {
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return 0;
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}
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return 1;
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}
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int main(int argc, char *argv[])
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{
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pid_t pid;
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int err;
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int stat;
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int all_passed = 1;
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pid = fork ();
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if (pid == -1) {
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fprintf (stderr, "Can't fork\n");
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return 1;
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}
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if (pid == 0) {
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err = test1 ();
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fprintf (stderr, "test1 %s\n", (err == 0 ? "passed" : "failed"));
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if (err != 0)
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all_passed = 0;
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return err;
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}
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waitpid (pid, NULL, 0);
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pid = fork ();
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if (pid == -1) {
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fprintf (stderr, "Can't fork\n");
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return 1;
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}
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if (pid == 0) {
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err = test2 ();
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return err;
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}
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waitpid (pid, &stat, 0);
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fprintf (stderr, "test2 %s\n", (WEXITSTATUS (stat) == 0 ? "passed" : "failed"));
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if (WEXITSTATUS (stat) != 0)
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all_passed = 0;
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pid = fork ();
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if (pid == -1) {
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fprintf (stderr, "Can't fork\n");
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return 1;
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}
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if (pid == 0) {
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err = test3 ();
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fprintf (stderr, "test3 %s\n", (err == 0 ? "passed" : "failed"));
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if (err != 0)
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all_passed = 0;
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return err;
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}
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waitpid (pid, NULL, 0);
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pid = fork ();
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if (pid == -1) {
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fprintf (stderr, "Can't fork\n");
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return 1;
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}
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if (pid == 0) {
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err = test4 ();
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fprintf (stderr, "test4 %s\n", (err == 0 ? "passed" : "failed"));
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if (err != 0)
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all_passed = 0;
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return err;
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}
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waitpid (pid, NULL, 0);
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if (all_passed)
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fprintf (stderr, "All tests passed\n");
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return (all_passed ? 0 : 1);
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}
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