exec/quorum.c
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/*
* Copyright (c) 2008-2012 Red Hat, Inc.
*
* All rights reserved.
*
* Author: Christine Caulfield (ccaulfie@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 MontaVista Software, 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.
*/
#include <config.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <sys/un.h>
#include <sys/ioctl.h>
#include <netinet/in.h>
#include <sys/uio.h>
#include <unistd.h>
#include <fcntl.h>
#include <stdlib.h>
#include <stdio.h>
#include <errno.h>
#include <time.h>
#include <arpa/inet.h>
#include <corosync/corotypes.h>
#include <corosync/swab.h>
#include <corosync/totem/totempg.h>
#include <corosync/totem/totem.h>
#include <corosync/logsys.h>
#include "quorum.h"
#include "main.h"
#include "vsf.h"
LOGSYS_DECLARE_SUBSYS ("QUORUM");
static struct quorum_callin_functions *corosync_quorum_fns = NULL;
int corosync_quorum_is_quorate (void)
{
if (corosync_quorum_fns) {
return corosync_quorum_fns->quorate();
}
else {
return 1;
}
}
int corosync_quorum_register_callback (quorum_callback_fn_t fn, void *context)
{
if (corosync_quorum_fns) {
return corosync_quorum_fns->register_callback(fn, context);
}
else {
return 0;
}
}
int corosync_quorum_unregister_callback (quorum_callback_fn_t fn, void *context)
{
if (corosync_quorum_fns) {
return corosync_quorum_fns->unregister_callback(fn, context);
}
else {
return 0;
}
}
int corosync_quorum_initialize (struct quorum_callin_functions *fns)
{
if (corosync_quorum_fns)
return -1;
corosync_quorum_fns = fns;
return 0;
}
int quorum_none(void)
{
if (corosync_quorum_fns)
return 0;
else
return 1;
}
config.h
quorum_callback_fn_t
void(* quorum_callback_fn_t)(int quorate, void *context)
The quorum_callback_fn_t callback.
Definition: coroapi.h:199
corotypes.h
corosync_quorum_register_callback
int corosync_quorum_register_callback(quorum_callback_fn_t fn, void *context)
Definition: exec/quorum.c:75
corosync_quorum_is_quorate
int corosync_quorum_is_quorate(void)
Definition: exec/quorum.c:65
LOGSYS_DECLARE_SUBSYS
LOGSYS_DECLARE_SUBSYS("QUORUM")
quorum_none
int quorum_none(void)
Definition: exec/quorum.c:104
corosync_quorum_unregister_callback
int corosync_quorum_unregister_callback(quorum_callback_fn_t fn, void *context)
Definition: exec/quorum.c:85
corosync_quorum_initialize
int corosync_quorum_initialize(struct quorum_callin_functions *fns)
Definition: exec/quorum.c:95
quorum.h
logsys.h
main.h
quorum_callin_functions
The quorum_callin_functions struct.
Definition: coroapi.h:204
quorum_callin_functions::quorate
int(* quorate)(void)
Definition: coroapi.h:205
quorum_callin_functions::unregister_callback
int(* unregister_callback)(quorum_callback_fn_t callback_fn, void *context)
Definition: coroapi.h:207
quorum_callin_functions::register_callback
int(* register_callback)(quorum_callback_fn_t callback_fn, void *contexxt)
Definition: coroapi.h:206
swab.h
totem.h
totempg.h
Totem Single Ring Protocol.
vsf.h