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790 lines
21 KiB
C
790 lines
21 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: Christine Caulfield (ccaulfie@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 CONTIBUTORS "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 a quorum API using the corosync executive
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*/
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#include <config.h>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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#include <sys/types.h>
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#include <sys/socket.h>
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#include <errno.h>
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#include <corosync/corotypes.h>
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#include <corosync/coroipc_types.h>
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#include <corosync/coroipcc.h>
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#include <corosync/corodefs.h>
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#include <corosync/hdb.h>
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#include <corosync/votequorum.h>
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#include <corosync/ipc_votequorum.h>
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#include "util.h"
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struct votequorum_inst {
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hdb_handle_t handle;
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int finalize;
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void *context;
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votequorum_callbacks_t callbacks;
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};
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DECLARE_HDB_DATABASE(votequorum_handle_t_db,NULL);
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cs_error_t votequorum_initialize (
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votequorum_handle_t *handle,
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votequorum_callbacks_t *callbacks)
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{
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cs_error_t error;
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struct votequorum_inst *votequorum_inst;
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error = hdb_error_to_cs(hdb_handle_create (&votequorum_handle_t_db, sizeof (struct votequorum_inst), handle));
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if (error != CS_OK) {
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goto error_no_destroy;
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}
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error = hdb_error_to_cs(hdb_handle_get (&votequorum_handle_t_db, *handle, (void *)&votequorum_inst));
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if (error != CS_OK) {
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goto error_destroy;
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}
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error = coroipcc_service_connect (
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COROSYNC_SOCKET_NAME,
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VOTEQUORUM_SERVICE,
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IPC_REQUEST_SIZE,
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IPC_RESPONSE_SIZE,
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IPC_DISPATCH_SIZE,
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&votequorum_inst->handle);
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if (error != CS_OK) {
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goto error_put_destroy;
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}
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if (callbacks)
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memcpy(&votequorum_inst->callbacks, callbacks, sizeof (*callbacks));
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else
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memset(&votequorum_inst->callbacks, 0, sizeof (*callbacks));
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hdb_handle_put (&votequorum_handle_t_db, *handle);
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return (CS_OK);
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error_put_destroy:
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hdb_handle_put (&votequorum_handle_t_db, *handle);
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error_destroy:
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hdb_handle_destroy (&votequorum_handle_t_db, *handle);
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error_no_destroy:
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return (error);
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}
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cs_error_t votequorum_finalize (
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votequorum_handle_t handle)
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{
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struct votequorum_inst *votequorum_inst;
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cs_error_t error;
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error = hdb_error_to_cs(hdb_handle_get (&votequorum_handle_t_db, handle, (void *)&votequorum_inst));
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if (error != CS_OK) {
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return (error);
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}
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/*
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* Another thread has already started finalizing
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*/
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if (votequorum_inst->finalize) {
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hdb_handle_put (&votequorum_handle_t_db, handle);
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return (CS_ERR_BAD_HANDLE);
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}
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votequorum_inst->finalize = 1;
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coroipcc_service_disconnect (votequorum_inst->handle);
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hdb_handle_destroy (&votequorum_handle_t_db, handle);
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hdb_handle_put (&votequorum_handle_t_db, handle);
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return (CS_OK);
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}
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cs_error_t votequorum_getinfo (
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votequorum_handle_t handle,
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unsigned int nodeid,
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struct votequorum_info *info)
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{
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cs_error_t error;
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struct votequorum_inst *votequorum_inst;
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struct iovec iov;
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struct req_lib_votequorum_getinfo req_lib_votequorum_getinfo;
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struct res_lib_votequorum_getinfo res_lib_votequorum_getinfo;
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error = hdb_error_to_cs(hdb_handle_get (&votequorum_handle_t_db, handle, (void *)&votequorum_inst));
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if (error != CS_OK) {
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return (error);
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}
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req_lib_votequorum_getinfo.header.size = sizeof (struct req_lib_votequorum_getinfo);
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req_lib_votequorum_getinfo.header.id = MESSAGE_REQ_VOTEQUORUM_GETINFO;
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req_lib_votequorum_getinfo.nodeid = nodeid;
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iov.iov_base = (char *)&req_lib_votequorum_getinfo;
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iov.iov_len = sizeof (struct req_lib_votequorum_getinfo);
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error = coroipcc_msg_send_reply_receive (
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votequorum_inst->handle,
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&iov,
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1,
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&res_lib_votequorum_getinfo,
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sizeof (struct res_lib_votequorum_getinfo));
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if (error != CS_OK) {
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goto error_exit;
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}
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error = res_lib_votequorum_getinfo.header.error;
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info->node_id = res_lib_votequorum_getinfo.nodeid;
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info->node_votes = res_lib_votequorum_getinfo.votes;
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info->node_expected_votes = res_lib_votequorum_getinfo.expected_votes;
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info->highest_expected = res_lib_votequorum_getinfo.highest_expected;
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info->total_votes = res_lib_votequorum_getinfo.total_votes;
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info->quorum = res_lib_votequorum_getinfo.quorum;
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info->flags = res_lib_votequorum_getinfo.flags;
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error_exit:
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hdb_handle_put (&votequorum_handle_t_db, handle);
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return (error);
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}
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cs_error_t votequorum_setexpected (
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votequorum_handle_t handle,
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unsigned int expected_votes)
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{
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cs_error_t error;
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struct votequorum_inst *votequorum_inst;
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struct iovec iov;
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struct req_lib_votequorum_setexpected req_lib_votequorum_setexpected;
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struct res_lib_votequorum_status res_lib_votequorum_status;
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error = hdb_error_to_cs(hdb_handle_get (&votequorum_handle_t_db, handle, (void *)&votequorum_inst));
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if (error != CS_OK) {
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return (error);
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}
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req_lib_votequorum_setexpected.header.size = sizeof (struct req_lib_votequorum_setexpected);
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req_lib_votequorum_setexpected.header.id = MESSAGE_REQ_VOTEQUORUM_SETEXPECTED;
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req_lib_votequorum_setexpected.expected_votes = expected_votes;
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iov.iov_base = (char *)&req_lib_votequorum_setexpected;
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iov.iov_len = sizeof (struct req_lib_votequorum_setexpected);
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error = coroipcc_msg_send_reply_receive (
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votequorum_inst->handle,
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&iov,
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1,
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&res_lib_votequorum_status,
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sizeof (struct res_lib_votequorum_status));
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if (error != CS_OK) {
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goto error_exit;
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}
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error = res_lib_votequorum_status.header.error;
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error_exit:
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hdb_handle_put (&votequorum_handle_t_db, handle);
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return (error);
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}
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cs_error_t votequorum_setvotes (
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votequorum_handle_t handle,
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unsigned int nodeid,
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unsigned int votes)
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{
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cs_error_t error;
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struct votequorum_inst *votequorum_inst;
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struct iovec iov;
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struct req_lib_votequorum_setvotes req_lib_votequorum_setvotes;
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struct res_lib_votequorum_status res_lib_votequorum_status;
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error = hdb_error_to_cs(hdb_handle_get (&votequorum_handle_t_db, handle, (void *)&votequorum_inst));
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if (error != CS_OK) {
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return (error);
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}
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req_lib_votequorum_setvotes.header.size = sizeof (struct req_lib_votequorum_setvotes);
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req_lib_votequorum_setvotes.header.id = MESSAGE_REQ_VOTEQUORUM_SETVOTES;
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req_lib_votequorum_setvotes.nodeid = nodeid;
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req_lib_votequorum_setvotes.votes = votes;
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iov.iov_base = (char *)&req_lib_votequorum_setvotes;
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iov.iov_len = sizeof (struct req_lib_votequorum_setvotes);
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error = coroipcc_msg_send_reply_receive (
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votequorum_inst->handle,
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&iov,
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1,
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&res_lib_votequorum_status,
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sizeof (struct res_lib_votequorum_status));
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if (error != CS_OK) {
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goto error_exit;
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}
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error = res_lib_votequorum_status.header.error;
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error_exit:
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hdb_handle_put (&votequorum_handle_t_db, handle);
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return (error);
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}
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cs_error_t votequorum_qdisk_register (
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votequorum_handle_t handle,
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const char *name,
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unsigned int votes)
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{
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cs_error_t error;
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struct votequorum_inst *votequorum_inst;
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struct iovec iov;
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struct req_lib_votequorum_qdisk_register req_lib_votequorum_qdisk_register;
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struct res_lib_votequorum_status res_lib_votequorum_status;
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if (strlen(name) > VOTEQUORUM_MAX_QDISK_NAME_LEN)
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return CS_ERR_INVALID_PARAM;
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error = hdb_error_to_cs(hdb_handle_get (&votequorum_handle_t_db, handle, (void *)&votequorum_inst));
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if (error != CS_OK) {
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return (error);
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}
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req_lib_votequorum_qdisk_register.header.size = sizeof (struct req_lib_votequorum_qdisk_register);
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req_lib_votequorum_qdisk_register.header.id = MESSAGE_REQ_VOTEQUORUM_QDISK_REGISTER;
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strcpy(req_lib_votequorum_qdisk_register.name, name);
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req_lib_votequorum_qdisk_register.votes = votes;
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iov.iov_base = (char *)&req_lib_votequorum_qdisk_register;
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iov.iov_len = sizeof (struct req_lib_votequorum_qdisk_register);
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error = coroipcc_msg_send_reply_receive (
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votequorum_inst->handle,
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&iov,
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1,
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&res_lib_votequorum_status,
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sizeof (struct res_lib_votequorum_status));
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if (error != CS_OK) {
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goto error_exit;
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}
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error = res_lib_votequorum_status.header.error;
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error_exit:
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hdb_handle_put (&votequorum_handle_t_db, handle);
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return (error);
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}
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cs_error_t votequorum_qdisk_poll (
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votequorum_handle_t handle,
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unsigned int state)
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{
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cs_error_t error;
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struct votequorum_inst *votequorum_inst;
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struct iovec iov;
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struct req_lib_votequorum_qdisk_poll req_lib_votequorum_qdisk_poll;
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struct res_lib_votequorum_status res_lib_votequorum_status;
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error = hdb_error_to_cs(hdb_handle_get (&votequorum_handle_t_db, handle, (void *)&votequorum_inst));
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if (error != CS_OK) {
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return (error);
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}
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req_lib_votequorum_qdisk_poll.header.size = sizeof (struct req_lib_votequorum_qdisk_poll);
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req_lib_votequorum_qdisk_poll.header.id = MESSAGE_REQ_VOTEQUORUM_QDISK_POLL;
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req_lib_votequorum_qdisk_poll.state = state;
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iov.iov_base = (char *)&req_lib_votequorum_qdisk_poll;
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iov.iov_len = sizeof (struct req_lib_votequorum_qdisk_poll);
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error = coroipcc_msg_send_reply_receive (
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votequorum_inst->handle,
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&iov,
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1,
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&res_lib_votequorum_status,
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sizeof (struct res_lib_votequorum_status));
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if (error != CS_OK) {
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goto error_exit;
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}
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error = res_lib_votequorum_status.header.error;
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error_exit:
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hdb_handle_put (&votequorum_handle_t_db, handle);
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return (error);
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}
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cs_error_t votequorum_qdisk_unregister (
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votequorum_handle_t handle)
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{
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cs_error_t error;
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struct votequorum_inst *votequorum_inst;
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struct iovec iov;
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struct req_lib_votequorum_general req_lib_votequorum_general;
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struct res_lib_votequorum_status res_lib_votequorum_status;
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error = hdb_error_to_cs(hdb_handle_get (&votequorum_handle_t_db, handle, (void *)&votequorum_inst));
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if (error != CS_OK) {
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return (error);
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}
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req_lib_votequorum_general.header.size = sizeof (struct req_lib_votequorum_general);
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req_lib_votequorum_general.header.id = MESSAGE_REQ_VOTEQUORUM_QDISK_UNREGISTER;
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iov.iov_base = (char *)&req_lib_votequorum_general;
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iov.iov_len = sizeof (struct req_lib_votequorum_general);
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error = coroipcc_msg_send_reply_receive (
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votequorum_inst->handle,
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&iov,
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1,
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&res_lib_votequorum_status,
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sizeof (struct res_lib_votequorum_status));
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if (error != CS_OK) {
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goto error_exit;
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}
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error = res_lib_votequorum_status.header.error;
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error_exit:
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hdb_handle_put (&votequorum_handle_t_db, handle);
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return (error);
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}
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cs_error_t votequorum_qdisk_getinfo (
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votequorum_handle_t handle,
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struct votequorum_qdisk_info *qinfo)
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{
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cs_error_t error;
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struct votequorum_inst *votequorum_inst;
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struct iovec iov;
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struct req_lib_votequorum_general req_lib_votequorum_general;
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struct res_lib_votequorum_qdisk_getinfo res_lib_votequorum_qdisk_getinfo;
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error = hdb_error_to_cs(hdb_handle_get (&votequorum_handle_t_db, handle, (void *)&votequorum_inst));
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if (error != CS_OK) {
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return (error);
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}
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req_lib_votequorum_general.header.size = sizeof (struct req_lib_votequorum_general);
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req_lib_votequorum_general.header.id = MESSAGE_REQ_VOTEQUORUM_QDISK_GETINFO;
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iov.iov_base = (char *)&req_lib_votequorum_general;
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iov.iov_len = sizeof (struct req_lib_votequorum_general);
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error = coroipcc_msg_send_reply_receive (
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votequorum_inst->handle,
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&iov,
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1,
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&res_lib_votequorum_qdisk_getinfo,
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sizeof (struct res_lib_votequorum_qdisk_getinfo));
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if (error != CS_OK) {
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goto error_exit;
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}
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error = res_lib_votequorum_qdisk_getinfo.header.error;
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qinfo->votes = res_lib_votequorum_qdisk_getinfo.votes;
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qinfo->state = res_lib_votequorum_qdisk_getinfo.state;
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strcpy(qinfo->name, res_lib_votequorum_qdisk_getinfo.name);
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error_exit:
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hdb_handle_put (&votequorum_handle_t_db, handle);
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return (error);
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}
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cs_error_t votequorum_setstate (
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votequorum_handle_t handle)
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{
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cs_error_t error;
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struct votequorum_inst *votequorum_inst;
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struct iovec iov;
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struct req_lib_votequorum_general req_lib_votequorum_general;
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struct res_lib_votequorum_status res_lib_votequorum_status;
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error = hdb_error_to_cs(hdb_handle_get (&votequorum_handle_t_db, handle, (void *)&votequorum_inst));
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if (error != CS_OK) {
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return (error);
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}
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req_lib_votequorum_general.header.size = sizeof (struct req_lib_votequorum_general);
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req_lib_votequorum_general.header.id = MESSAGE_REQ_VOTEQUORUM_SETSTATE;
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iov.iov_base = (char *)&req_lib_votequorum_general;
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iov.iov_len = sizeof (struct req_lib_votequorum_general);
|
|
|
|
error = coroipcc_msg_send_reply_receive (
|
|
votequorum_inst->handle,
|
|
&iov,
|
|
1,
|
|
&res_lib_votequorum_status,
|
|
sizeof (struct res_lib_votequorum_status));
|
|
|
|
if (error != CS_OK) {
|
|
goto error_exit;
|
|
}
|
|
|
|
error = res_lib_votequorum_status.header.error;
|
|
|
|
error_exit:
|
|
hdb_handle_put (&votequorum_handle_t_db, handle);
|
|
|
|
return (error);
|
|
}
|
|
|
|
cs_error_t votequorum_leaving (
|
|
votequorum_handle_t handle)
|
|
{
|
|
cs_error_t error;
|
|
struct votequorum_inst *votequorum_inst;
|
|
struct iovec iov;
|
|
struct req_lib_votequorum_general req_lib_votequorum_general;
|
|
struct res_lib_votequorum_status res_lib_votequorum_status;
|
|
|
|
error = hdb_error_to_cs(hdb_handle_get (&votequorum_handle_t_db, handle, (void *)&votequorum_inst));
|
|
if (error != CS_OK) {
|
|
return (error);
|
|
}
|
|
|
|
|
|
req_lib_votequorum_general.header.size = sizeof (struct req_lib_votequorum_general);
|
|
req_lib_votequorum_general.header.id = MESSAGE_REQ_VOTEQUORUM_LEAVING;
|
|
|
|
iov.iov_base = (char *)&req_lib_votequorum_general;
|
|
iov.iov_len = sizeof (struct req_lib_votequorum_general);
|
|
|
|
error = coroipcc_msg_send_reply_receive (
|
|
votequorum_inst->handle,
|
|
&iov,
|
|
1,
|
|
&res_lib_votequorum_status,
|
|
sizeof (struct res_lib_votequorum_status));
|
|
|
|
if (error != CS_OK) {
|
|
goto error_exit;
|
|
}
|
|
|
|
error = res_lib_votequorum_status.header.error;
|
|
|
|
error_exit:
|
|
hdb_handle_put (&votequorum_handle_t_db, handle);
|
|
|
|
return (error);
|
|
}
|
|
|
|
cs_error_t votequorum_trackstart (
|
|
votequorum_handle_t handle,
|
|
uint64_t context,
|
|
unsigned int flags)
|
|
{
|
|
cs_error_t error;
|
|
struct votequorum_inst *votequorum_inst;
|
|
struct iovec iov;
|
|
struct req_lib_votequorum_trackstart req_lib_votequorum_trackstart;
|
|
struct res_lib_votequorum_status res_lib_votequorum_status;
|
|
|
|
error = hdb_error_to_cs(hdb_handle_get (&votequorum_handle_t_db, handle, (void *)&votequorum_inst));
|
|
if (error != CS_OK) {
|
|
return (error);
|
|
}
|
|
|
|
req_lib_votequorum_trackstart.header.size = sizeof (struct req_lib_votequorum_trackstart);
|
|
req_lib_votequorum_trackstart.header.id = MESSAGE_REQ_VOTEQUORUM_TRACKSTART;
|
|
req_lib_votequorum_trackstart.track_flags = flags;
|
|
req_lib_votequorum_trackstart.context = context;
|
|
|
|
iov.iov_base = (char *)&req_lib_votequorum_trackstart;
|
|
iov.iov_len = sizeof (struct req_lib_votequorum_trackstart);
|
|
|
|
error = coroipcc_msg_send_reply_receive (
|
|
votequorum_inst->handle,
|
|
&iov,
|
|
1,
|
|
&res_lib_votequorum_status,
|
|
sizeof (struct res_lib_votequorum_status));
|
|
|
|
if (error != CS_OK) {
|
|
goto error_exit;
|
|
}
|
|
|
|
error = res_lib_votequorum_status.header.error;
|
|
|
|
error_exit:
|
|
hdb_handle_put (&votequorum_handle_t_db, handle);
|
|
|
|
return (error);
|
|
}
|
|
|
|
cs_error_t votequorum_trackstop (
|
|
votequorum_handle_t handle)
|
|
{
|
|
cs_error_t error;
|
|
struct votequorum_inst *votequorum_inst;
|
|
struct iovec iov;
|
|
struct req_lib_votequorum_general req_lib_votequorum_general;
|
|
struct res_lib_votequorum_status res_lib_votequorum_status;
|
|
|
|
error = hdb_error_to_cs(hdb_handle_get (&votequorum_handle_t_db, handle, (void *)&votequorum_inst));
|
|
if (error != CS_OK) {
|
|
return (error);
|
|
}
|
|
|
|
req_lib_votequorum_general.header.size = sizeof (struct req_lib_votequorum_general);
|
|
req_lib_votequorum_general.header.id = MESSAGE_REQ_VOTEQUORUM_TRACKSTOP;
|
|
|
|
iov.iov_base = (char *)&req_lib_votequorum_general;
|
|
iov.iov_len = sizeof (struct req_lib_votequorum_general);
|
|
|
|
error = coroipcc_msg_send_reply_receive (
|
|
votequorum_inst->handle,
|
|
&iov,
|
|
1,
|
|
&res_lib_votequorum_status,
|
|
sizeof (struct res_lib_votequorum_status));
|
|
|
|
if (error != CS_OK) {
|
|
goto error_exit;
|
|
}
|
|
|
|
error = res_lib_votequorum_status.header.error;
|
|
|
|
error_exit:
|
|
hdb_handle_put (&votequorum_handle_t_db, handle);
|
|
|
|
return (error);
|
|
}
|
|
|
|
|
|
cs_error_t votequorum_context_get (
|
|
votequorum_handle_t handle,
|
|
void **context)
|
|
{
|
|
cs_error_t error;
|
|
struct votequorum_inst *votequorum_inst;
|
|
|
|
error = hdb_error_to_cs(hdb_handle_get (&votequorum_handle_t_db, handle, (void *)&votequorum_inst));
|
|
if (error != CS_OK) {
|
|
return (error);
|
|
}
|
|
|
|
*context = votequorum_inst->context;
|
|
|
|
hdb_handle_put (&votequorum_handle_t_db, handle);
|
|
|
|
return (CS_OK);
|
|
}
|
|
|
|
cs_error_t votequorum_context_set (
|
|
votequorum_handle_t handle,
|
|
void *context)
|
|
{
|
|
cs_error_t error;
|
|
struct votequorum_inst *votequorum_inst;
|
|
|
|
error = hdb_error_to_cs(hdb_handle_get (&votequorum_handle_t_db, handle, (void *)&votequorum_inst));
|
|
if (error != CS_OK) {
|
|
return (error);
|
|
}
|
|
|
|
votequorum_inst->context = context;
|
|
|
|
hdb_handle_put (&votequorum_handle_t_db, handle);
|
|
|
|
return (CS_OK);
|
|
}
|
|
|
|
|
|
cs_error_t votequorum_fd_get (
|
|
votequorum_handle_t handle,
|
|
int *fd)
|
|
{
|
|
cs_error_t error;
|
|
struct votequorum_inst *votequorum_inst;
|
|
|
|
error = hdb_error_to_cs(hdb_handle_get (&votequorum_handle_t_db, handle, (void *)&votequorum_inst));
|
|
if (error != CS_OK) {
|
|
return (error);
|
|
}
|
|
|
|
error = coroipcc_fd_get (votequorum_inst->handle, fd);
|
|
|
|
(void)hdb_handle_put (&votequorum_handle_t_db, handle);
|
|
|
|
return (error);
|
|
}
|
|
|
|
cs_error_t votequorum_dispatch (
|
|
votequorum_handle_t handle,
|
|
cs_dispatch_flags_t dispatch_types)
|
|
{
|
|
int timeout = -1;
|
|
cs_error_t error;
|
|
int cont = 1; /* always continue do loop except when set to 0 */
|
|
struct votequorum_inst *votequorum_inst;
|
|
votequorum_callbacks_t callbacks;
|
|
coroipc_response_header_t *dispatch_data;
|
|
struct res_lib_votequorum_notification *res_lib_votequorum_notification;
|
|
struct res_lib_votequorum_expectedvotes_notification *res_lib_votequorum_expectedvotes_notification;
|
|
|
|
if (dispatch_types != CS_DISPATCH_ONE &&
|
|
dispatch_types != CS_DISPATCH_ALL &&
|
|
dispatch_types != CS_DISPATCH_BLOCKING) {
|
|
|
|
return (CS_ERR_INVALID_PARAM);
|
|
}
|
|
|
|
error = hdb_error_to_cs(hdb_handle_get (&votequorum_handle_t_db, handle,
|
|
(void *)&votequorum_inst));
|
|
if (error != CS_OK) {
|
|
return (error);
|
|
}
|
|
|
|
/*
|
|
* Timeout instantly for CS_DISPATCH_ONE or CS_DISPATCH_ALL and
|
|
* wait indefinitely for CS_DISPATCH_BLOCKING
|
|
*/
|
|
if (dispatch_types == CS_DISPATCH_ALL) {
|
|
timeout = 0;
|
|
}
|
|
|
|
do {
|
|
error = coroipcc_dispatch_get (
|
|
votequorum_inst->handle,
|
|
(void **)&dispatch_data,
|
|
timeout);
|
|
if (error == CS_ERR_BAD_HANDLE) {
|
|
error = CS_OK;
|
|
goto error_put;
|
|
}
|
|
if (error == CS_ERR_TRY_AGAIN) {
|
|
error = CS_OK;
|
|
if (dispatch_types == CPG_DISPATCH_ALL) {
|
|
break; /* exit do while cont is 1 loop */
|
|
} else {
|
|
continue; /* next poll */
|
|
}
|
|
}
|
|
if (error != CS_OK) {
|
|
goto error_put;
|
|
}
|
|
|
|
/*
|
|
* Make copy of callbacks, message data, unlock instance, and call callback
|
|
* A risk of this dispatch method is that the callback routines may
|
|
* operate at the same time that votequorum_finalize has been called in another thread.
|
|
*/
|
|
memcpy (&callbacks, &votequorum_inst->callbacks, sizeof (votequorum_callbacks_t));
|
|
|
|
/*
|
|
* Dispatch incoming message
|
|
*/
|
|
switch (dispatch_data->id) {
|
|
|
|
case MESSAGE_RES_VOTEQUORUM_NOTIFICATION:
|
|
if (callbacks.votequorum_notify_fn == NULL) {
|
|
break;
|
|
}
|
|
res_lib_votequorum_notification = (struct res_lib_votequorum_notification *)dispatch_data;
|
|
|
|
callbacks.votequorum_notify_fn ( handle,
|
|
res_lib_votequorum_notification->context,
|
|
res_lib_votequorum_notification->quorate,
|
|
res_lib_votequorum_notification->node_list_entries,
|
|
(votequorum_node_t *)res_lib_votequorum_notification->node_list );
|
|
;
|
|
break;
|
|
|
|
case MESSAGE_RES_VOTEQUORUM_EXPECTEDVOTES_NOTIFICATION:
|
|
if (callbacks.votequorum_expectedvotes_notify_fn == NULL) {
|
|
break;
|
|
}
|
|
res_lib_votequorum_expectedvotes_notification = (struct res_lib_votequorum_expectedvotes_notification *)dispatch_data;
|
|
|
|
callbacks.votequorum_expectedvotes_notify_fn ( handle,
|
|
res_lib_votequorum_expectedvotes_notification->context,
|
|
res_lib_votequorum_expectedvotes_notification->expected_votes);
|
|
break;
|
|
|
|
default:
|
|
coroipcc_dispatch_put (votequorum_inst->handle);
|
|
error = CS_ERR_LIBRARY;
|
|
goto error_put;
|
|
break;
|
|
}
|
|
coroipcc_dispatch_put (votequorum_inst->handle);
|
|
|
|
/*
|
|
* Determine if more messages should be processed
|
|
*/
|
|
if (dispatch_types == CS_DISPATCH_ONE) {
|
|
cont = 0;
|
|
}
|
|
} while (cont);
|
|
|
|
goto error_put;
|
|
|
|
error_put:
|
|
hdb_handle_put (&votequorum_handle_t_db, handle);
|
|
return (error);
|
|
}
|