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this fixes a rather annoying race condition at startup where a client connects to corosync "too fast" before the service is ready to operate and client gets some random data during initialization phase. With this fix, we allow connections to ipc only after the main engine is operational and configured (and after the first totem transition). Signed-off-by: Fabio M. Di Nitto <fdinitto@redhat.com> Reviewed-by: Angus Salkeld <asalkeld@redhat.com>
127 lines
3.9 KiB
C
127 lines
3.9 KiB
C
/*
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* Copyright (c) 2002-2006 MontaVista Software, Inc.
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* Copyright (c) 2006-2012 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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/**
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* @file
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*
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* @warning DO NOT USE SYMBOLS IN THIS FILE
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*/
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#ifndef MAIN_H_DEFINED
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#define MAIN_H_DEFINED
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#define TRUE 1
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#define FALSE 0
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#include <corosync/corotypes.h>
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#include <corosync/hdb.h>
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#include <qb/qbloop.h>
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#include <corosync/totem/totempg.h>
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#include <corosync/coroapi.h>
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extern unsigned long long *(*main_clm_get_by_nodeid) (unsigned int node_id);
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extern int main_mcast (
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const struct iovec *iovec,
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unsigned int iov_len,
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unsigned int guarantee);
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extern void message_source_set (mar_message_source_t *source, void *conn);
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extern int message_source_is_local (const mar_message_source_t *source);
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extern void corosync_shutdown_request (void);
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extern void corosync_state_dump (void);
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extern qb_loop_t *cs_poll_handle_get (void);
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extern int cs_poll_dispatch_add (qb_loop_t * handle,
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int fd,
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int events,
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void *data,
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int (*dispatch_fn) (int fd,
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int revents,
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void *data));
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extern int cs_poll_dispatch_delete (
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qb_loop_t * handle,
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int fd);
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extern int corosync_sending_allowed (
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unsigned int service,
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unsigned int id,
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const void *msg,
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void *sending_allowed_private_data);
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extern void corosync_sending_allowed_release (void *sending_allowed_private_data);
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extern void corosync_recheck_the_q_level(void *data);
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extern void cs_ipcs_init(void);
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extern void cs_ipcs_service_init(struct corosync_service_engine *service);
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extern void cs_ipcs_stats_update(void);
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extern int32_t cs_ipcs_service_destroy(int32_t service_id);
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extern int32_t cs_ipcs_q_level_get(void);
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extern int cs_ipcs_dispatch_send(void *conn, const void *msg, size_t mlen);
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extern int cs_ipcs_dispatch_iov_send (void *conn,
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const struct iovec *iov,
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unsigned int iov_len);
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extern int cs_ipcs_response_send(void *conn, const void *msg, size_t mlen);
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extern int cs_ipcs_response_iov_send (void *conn,
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const struct iovec *iov,
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unsigned int iov_len);
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extern void cs_ipcs_sync_state_changed(int32_t sync_in_process);
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extern void *cs_ipcs_private_data_get(void *conn);
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extern void cs_ipc_refcnt_inc(void *conn);
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extern void cs_ipc_refcnt_dec(void *conn);
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extern void cs_ipc_allow_connections(int32_t allow);
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int coroparse_configparse (const char **error_string);
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#endif /* MAIN_H_DEFINED */
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