To further explain the simplicity of writing a cluster service using this framework you can look at the below attached icstest service. with this calling ics_test_print(char *string) will cause the string to be printed on node 3. -aneesh
Attachment:
icstest.svc
Description: Binary data
#include <linux/cluster.h>
#include <cluster/nsc.h>
#include <cluster/config.h>
#include <cluster/ics/ics_private.h>
#include <cluster/gen/ics_icstest_macros_gen.h>
#include <cluster/gen/ics_icstest_protos_gen.h>
int rics_print(clusternode_t node, int *rval,
char *name, int namelen)
{
printk("Printing the message-> %s\n", name);
return 0;
}
int __ics_test_print(clusternode_t node, char *string)
{
int ret;
if (node == this_node) {
rics_print(node, &ret, string, strlen(string)+1);
} else {
RICS_PRINT(node, &ret, string, strlen(string)+1);
}
return ret;
}
int ics_test_print(char *string)
{
return __ics_test_print(3, string);
}
/*
* ICSSIG client/server stub routines.
* Copyright 2001 Compaq Computer Corporation
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of
* the License, or (at your option) any later version.
*
* This program 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, GOOD TITLE
* or NON INFRINGEMENT. See the GNU General Public License for more
* details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*
* Questions/Comments/Bugfixes to ci-linux-devel@xxxxxxxxxxxxxxxxxxxxx
*
*/
#include <cluster/icsgen.h>
cluster_svc_t cluster_icstest_svc;
/*
* Include prototypes, client and server stubs generated by icsgen.
*/
#include <cluster/gen/ics_icstest_protos_gen.h>
#include <cluster/gen/icscli_icstest_gen.c>
#include <cluster/gen/icssvr_icstest_gen.c>
/*
* Include the server tables and service registration generated by icsgen.
*/
#include <cluster/gen/icssvr_icstest_tables_gen.c>
/*
* Register ICSSIG components with CI.
*/
static int __init ci_init_icstest(void)
{
/* Register ICSSIG cluster service */
return register_cluster_svc(&cluster_icstest_svc,
ics_default_chan,
ics_icstest_svc_init);
}
/* XXX: There is currently no option to compile this as a module. */
module_init(ci_init_icstest)
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