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+/*
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+ * Copyright (c) 2004 MontaVista Software, Inc.
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+ * Copyright (c) 2006-2007 Red Hat, Inc.
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+ *
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+ * All rights reserved.
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+ *
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+ * Author: Steven Dake (sdake@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 MontaVista Software, 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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+#include <stdio.h>
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+#include <stdlib.h>
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+#include <sys/socket.h>
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+#include <netinet/in.h>
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+#include <arpa/inet.h>
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+#include <errno.h>
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+#include <string.h>
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+#include <corosync/evs.h>
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+#include "../exec/crypto.h"
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+
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+char *delivery_string;
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+struct msg {
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+ unsigned int msg_size;
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+ unsigned char sha1[20];
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+ unsigned char buffer[0];
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+};
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+
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+int deliveries = 0;
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+void evs_deliver_fn (
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+ unsigned int nodeid,
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+ void *m,
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+ int msg_len)
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+{
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+ struct msg *msg2 = (struct msg *)m;
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+ unsigned char sha1_compare[20];
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+ hash_state sha1_hash;
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+ unsigned int i;
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+
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+ printf ("API '%s' msg '%s'\n", delivery_string, msg2->buffer);
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+ sha1_init (&sha1_hash);
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+ sha1_process (&sha1_hash, msg2->buffer, msg2->msg_size);
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+ sha1_done (&sha1_hash, sha1_compare);
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+printf ("SIZE %d HASH: ", msg2->msg_size);
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+for (i = 0; i < 20; i++) {
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+printf ("%x", sha1_compare[i]);
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+}
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+printf ("\n");
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+ if (memcmp (sha1_compare, msg2->sha1, 20) != 0) {
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+ printf ("incorrect hash\n");
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+ exit (1);
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+ }
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+ deliveries++;
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+}
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+
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+void evs_confchg_fn (
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+ unsigned int *member_list, int member_list_entries,
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+ unsigned int *left_list, int left_list_entries,
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+ unsigned int *joined_list, int joined_list_entries)
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+{
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+ int i;
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+
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+ printf ("CONFIGURATION CHANGE\n");
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+ printf ("--------------------\n");
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+ printf ("New configuration\n");
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+ for (i = 0; i < member_list_entries; i++) {
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+ printf ("%x\n", member_list[i]);
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+ }
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+ printf ("Members Left:\n");
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+ for (i = 0; i < left_list_entries; i++) {
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+ printf ("%x\n", left_list[i]);
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+ }
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+ printf ("Members Joined:\n");
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+ for (i = 0; i < joined_list_entries; i++) {
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+ printf ("%x\n", joined_list[i]);
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+ }
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+}
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+
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+evs_callbacks_t callbacks = {
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+ evs_deliver_fn,
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+ evs_confchg_fn
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+};
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+
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+struct evs_group groups[3] = {
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+ { "key1" },
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+ { "key2" },
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+ { "key3" }
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+};
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+
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+struct msg msg;
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+
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+char buffer[200000];
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+int main (void)
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+{
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+ evs_handle_t handle;
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+ evs_error_t result;
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+ unsigned int i = 0, j;
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+ int fd;
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+ unsigned int member_list[32];
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+ unsigned int local_nodeid;
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+ int member_list_entries = 32;
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+ struct msg msg;
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+ hash_state sha1_hash;
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+ struct iovec iov[2];
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+
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+ result = evs_initialize (&handle, &callbacks);
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+ if (result != EVS_OK) {
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+ printf ("Couldn't initialize EVS service %d\n", result);
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+ exit (0);
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+ }
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+
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+ result = evs_membership_get (handle, &local_nodeid,
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+ member_list, &member_list_entries);
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+ printf ("Current membership from evs_membership_get entries %d\n",
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+ member_list_entries);
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+ for (i = 0; i < member_list_entries; i++) {
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+ printf ("member [%d] is %x\n", i, member_list[i]);
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+ }
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+ printf ("local processor from evs_membership_get %x\n", local_nodeid);
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+
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+ printf ("Init result %d\n", result);
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+ result = evs_join (handle, groups, 3);
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+ printf ("Join result %d\n", result);
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+ result = evs_leave (handle, &groups[0], 1);
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+ printf ("Leave result %d\n", result);
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+ delivery_string = "evs_mcast_joined";
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+
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+ iov[0].iov_base = &msg;
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+ iov[0].iov_len = sizeof (struct msg);
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+ iov[1].iov_base = buffer;
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+
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+ /*
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+ * Demonstrate evs_mcast_joined
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+ */
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+ for (i = 0; i < 1000000000; i++) {
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+ msg.msg_size = 100 + rand() % 100000;
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+ iov[1].iov_len = msg.msg_size;
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+ for (j = 0; j < msg.msg_size; j++) {
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+ buffer[j] = j;
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+ }
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+ sprintf ((char *)buffer,
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+ "evs_mcast_joined: This is message %12d", i);
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+ sha1_init (&sha1_hash);
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+ sha1_process (&sha1_hash, buffer, msg.msg_size);
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+ sha1_done (&sha1_hash, msg.sha1);
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+try_again_one:
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+ result = evs_mcast_joined (handle, EVS_TYPE_AGREED,
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+ iov, 2);
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+ if (result == EVS_ERR_TRY_AGAIN) {
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+ goto try_again_one;
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+ }
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+ result = evs_dispatch (handle, EVS_DISPATCH_ALL);
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+ }
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+
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+ evs_fd_get (handle, &fd);
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+
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+ evs_finalize (handle);
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+
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+ return (0);
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+}
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Steven Dake