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ade5ce30de
Evt now allows the maximum delivery queue size and the resume size to be set in openais.conf (Logical change 1.195) git-svn-id: http://svn.fedorahosted.org/svn/corosync/trunk@639 fd59a12c-fef9-0310-b244-a6a79926bd2f
4049 lines
106 KiB
C
4049 lines
106 KiB
C
/*
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* Copyright (c) 2004 Mark Haverkamp
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* Copyright (c) 2004 Open Source Development Lab
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*
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* All rights reserved.
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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 Open Source Development Lab 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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#define DUMP_CHAN_INFO
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#define RECOVERY_EVENT_DEBUG LOG_LEVEL_DEBUG
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#define RECOVERY_DEBUG LOG_LEVEL_DEBUG
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#define CHAN_DEL_DEBUG LOG_LEVEL_DEBUG
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#define CHAN_OPEN_DEBUG LOG_LEVEL_DEBUG
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#define CHAN_UNLINK_DEBUG LOG_LEVEL_DEBUG
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#define REMOTE_OP_DEBUG LOG_LEVEL_DEBUG
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#include <sys/types.h>
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#include <malloc.h>
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#include <errno.h>
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#include <sys/time.h>
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#include <sys/uio.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 "../include/ipc_evt.h"
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#include "../include/list.h"
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#include "../include/queue.h"
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#include "util.h"
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#include "aispoll.h"
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#include "mempool.h"
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#include "parse.h"
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#include "main.h"
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#include "totempg.h"
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#include "hdb.h"
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#include "clm.h"
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#include "evt.h"
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#include "swab.h"
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#define LOG_SERVICE LOG_SERVICE_EVT
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#include "print.h"
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static int lib_evt_open_channel(struct conn_info *conn_info, void *message);
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static int lib_evt_open_channel_async(struct conn_info *conn_info,
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void *message);
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static int lib_evt_close_channel(struct conn_info *conn_info, void *message);
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static int lib_evt_unlink_channel(struct conn_info *conn_info, void *message);
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static int lib_evt_event_subscribe(struct conn_info *conn_info,
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void *message);
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static int lib_evt_event_unsubscribe(struct conn_info *conn_info,
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void *message);
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static int lib_evt_event_publish(struct conn_info *conn_info, void *message);
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static int lib_evt_event_clear_retentiontime(struct conn_info *conn_info,
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void *message);
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static int lib_evt_event_data_get(struct conn_info *conn_info,
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void *message);
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static int evt_conf_change(
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enum totem_configuration_type configuration_type,
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struct in_addr *member_list, int member_list_entries,
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struct in_addr *left_list, int left_list_entries,
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struct in_addr *joined_list, int joined_list_entries,
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struct memb_ring_id *ring_id);
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static int evt_initialize(struct conn_info *conn_info);
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static int evt_finalize(struct conn_info *conn_info);
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static int evt_exec_init(struct openais_config *openais_config);
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/*
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* Recovery sync functions
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*/
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static void evt_sync_init(void);
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static int evt_sync_process(void);
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static void evt_sync_activate(void);
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static void evt_sync_abort(void);
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static struct libais_handler evt_libais_handlers[] = {
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{
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.libais_handler_fn = lib_evt_open_channel,
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.response_size = sizeof(struct res_evt_channel_open),
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.response_id = MESSAGE_RES_EVT_OPEN_CHANNEL,
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.flow_control = FLOW_CONTROL_REQUIRED
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},
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{
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.libais_handler_fn = lib_evt_open_channel_async,
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.response_size = sizeof(struct res_evt_channel_open),
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.response_id = MESSAGE_RES_EVT_OPEN_CHANNEL,
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.flow_control = FLOW_CONTROL_REQUIRED
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},
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{
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.libais_handler_fn = lib_evt_close_channel,
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.response_size = sizeof(struct res_evt_channel_close),
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.response_id = MESSAGE_RES_EVT_CLOSE_CHANNEL,
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.flow_control = FLOW_CONTROL_REQUIRED
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},
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{
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.libais_handler_fn = lib_evt_unlink_channel,
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.response_size = sizeof(struct res_evt_channel_unlink),
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.response_id = MESSAGE_RES_EVT_UNLINK_CHANNEL,
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.flow_control = FLOW_CONTROL_REQUIRED
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},
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{
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.libais_handler_fn = lib_evt_event_subscribe,
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.response_size = sizeof(struct res_evt_event_subscribe),
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.response_id = MESSAGE_RES_EVT_SUBSCRIBE,
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.flow_control = FLOW_CONTROL_NOT_REQUIRED
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},
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{
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.libais_handler_fn = lib_evt_event_unsubscribe,
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.response_size = sizeof(struct res_evt_event_unsubscribe),
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.response_id = MESSAGE_RES_EVT_UNSUBSCRIBE,
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.flow_control = FLOW_CONTROL_NOT_REQUIRED
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},
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{
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.libais_handler_fn = lib_evt_event_publish,
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.response_size = sizeof(struct res_evt_event_publish),
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.response_id = MESSAGE_RES_EVT_PUBLISH,
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.flow_control = FLOW_CONTROL_REQUIRED
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},
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{
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.libais_handler_fn = lib_evt_event_clear_retentiontime,
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.response_size = sizeof(struct res_evt_event_clear_retentiontime),
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.response_id = MESSAGE_RES_EVT_CLEAR_RETENTIONTIME,
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.flow_control = FLOW_CONTROL_REQUIRED
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},
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{
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.libais_handler_fn = lib_evt_event_data_get,
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.response_size = sizeof(struct lib_event_data),
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.response_id = MESSAGE_RES_EVT_EVENT_DATA,
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.flow_control = FLOW_CONTROL_NOT_REQUIRED
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},
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};
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static int evt_remote_evt(void *msg, struct in_addr source_addr,
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int endian_conversion_required);
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static int evt_remote_recovery_evt(void *msg, struct in_addr source_addr,
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int endian_conversion_required);
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static int evt_remote_chan_op(void *msg, struct in_addr source_addr,
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int endian_conversion_required);
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static int (*evt_exec_handler_fns[]) (void *m, struct in_addr s,
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int endian_conversion_required) = {
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evt_remote_evt,
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evt_remote_chan_op,
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evt_remote_recovery_evt
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};
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struct service_handler evt_service_handler = {
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.libais_handlers = evt_libais_handlers,
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.libais_handlers_count = sizeof(evt_libais_handlers) /
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sizeof(struct libais_handler),
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.aisexec_handler_fns = evt_exec_handler_fns,
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.aisexec_handler_fns_count = sizeof(evt_exec_handler_fns) /
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sizeof(int (*)),
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.confchg_fn = evt_conf_change,
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.libais_init_two_fn = evt_initialize,
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.libais_exit_fn = evt_finalize,
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.exec_init_fn = evt_exec_init,
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.exec_dump_fn = 0,
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.sync_init = evt_sync_init,
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.sync_process = evt_sync_process,
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.sync_activate = evt_sync_activate,
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.sync_abort = evt_sync_abort
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};
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/*
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* list of all retained events
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* struct event_data
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*/
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static DECLARE_LIST_INIT(retained_list);
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/*
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* list of all event channel information
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* struct event_svr_channel_instance
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*/
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static DECLARE_LIST_INIT(esc_head);
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/*
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* list of all unlinked event channel information
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* struct event_svr_channel_instance
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*/
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static DECLARE_LIST_INIT(esc_unlinked_head);
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/*
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* list of all active event conn_info structs.
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* struct conn_info
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*/
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static DECLARE_LIST_INIT(ci_head);
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/*
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* Track the state of event service recovery.
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*
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* evt_recovery_complete: Normal operational mode
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*
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* evt_send_event_id: Node is sending known last
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* event IDs.
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*
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* evt_send_open_count: Node is sending its open
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* Channel information.
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*
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* evt_wait_open_count_done: Node is done sending open channel data and
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* is waiting for the other nodes to finish.
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*
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* evt_send_retained_events: Node is sending retained event data.
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*
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* evt_send_retained_events_done: Node is sending done message.
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*
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* evt_wait_send_retained_events: Node is waiting for other nodes to
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* finish sending retained event data.
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*/
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enum recovery_phases {
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evt_recovery_complete,
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evt_send_event_id,
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evt_send_open_count,
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evt_wait_open_count_done,
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evt_send_retained_events,
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evt_send_retained_events_done,
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evt_wait_send_retained_events
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};
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/*
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* Global varaibles used by the event service
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*
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* base_id_top: upper bits of next event ID to assign
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* base_id: Lower bits of Next event ID to assign
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* my_node_id: My cluster node id
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* checked_in: keep track during config change.
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* recovery_node: True if we're the recovery node. i.e. the
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* node that sends the retained events.
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* next_retained: pointer to next retained message to send
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* during recovery.
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* next_chan: pointer to next channel to send during recovery.
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* recovery_phase: Indicates what recovery is taking place.
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* left_member_count: How many left this configuration.
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* left_member_list: Members that left this config
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* joined_member_count: How many joined this configuration.
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* joined_member_list: Members that joined this config
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* total_member_count: how many members in this cluster
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* current_member_list: Total membership this config
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* trans_member_count: Node count in transitional membership
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* trans_member_list: Total membership from the transitional membership
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* add_count: count of joined members used for sending event id
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* recovery data.
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* add_list: pointer to joined list used for sending event id
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* recovery data.
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* processed_open_counts: Flag used to coordinate clearing open
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* channel counts for config change recovery.
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*
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*/
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#define BASE_ID_MASK 0xffffffffLL
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static SaEvtEventIdT base_id = 0;
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static SaEvtEventIdT base_id_top = 0;
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static SaClmNodeIdT my_node_id = 0;
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static int checked_in = 0;
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static int recovery_node = 0;
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static struct list_head *next_retained = 0;
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static struct list_head *next_chan = 0;
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static enum recovery_phases recovery_phase = evt_recovery_complete;
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static int left_member_count = 0;
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static struct in_addr *left_member_list = 0;
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static int joined_member_count = 0;
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static struct in_addr *joined_member_list = 0;
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static int total_member_count = 0;
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static struct in_addr *current_member_list = 0;
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static int trans_member_count = 0;
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static struct in_addr *trans_member_list = 0;
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static int add_count = 0;
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static struct in_addr *add_list = 0;
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static int processed_open_counts = 0;
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/*
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* Structure to track pending channel open requests.
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* ocp_async: 1 for async open
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* ocp_invocation: invocation for async open
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* ocp_chan_name: requested channel
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* ocp_conn_info: conn_info for returning to the library.
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* ocp_open_flags: channel open flags
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* ocp_timer_handle: timer handle for sync open
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* ocp_entry: list entry for pending open list.
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*/
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struct open_chan_pending {
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int ocp_async;
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SaInvocationT ocp_invocation;
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SaNameT ocp_chan_name;
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struct conn_info *ocp_conn_info;
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SaEvtChannelOpenFlagsT ocp_open_flag;
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poll_timer_handle ocp_timer_handle;
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uint32_t ocp_c_handle;
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struct list_head ocp_entry;
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};
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/*
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* list of pending channel opens
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*/
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static DECLARE_LIST_INIT(open_pending);
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static void chan_open_timeout(void *data);
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/*
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* Structure to track pending channel unlink requests.
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* ucp_unlink_id: unlink ID of unlinked channel.
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* ucp_conn_info: conn_info for returning to the library.
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* ucp_entry: list entry for pending unlink list.
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*/
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struct unlink_chan_pending {
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uint64_t ucp_unlink_id;
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struct conn_info *ucp_conn_info;
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struct list_head ucp_entry;
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};
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/*
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* list of pending unlink requests
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*/
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static DECLARE_LIST_INIT(unlink_pending);
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/*
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* Next unlink ID
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*/
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static uint64_t base_unlink_id = 0;
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inline uint64_t
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next_chan_unlink_id()
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{
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uint64_t uid = my_node_id;
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uid = (uid << 32ULL) | base_unlink_id;
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base_unlink_id = (base_unlink_id + 1ULL) & BASE_ID_MASK;
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return uid;
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}
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#define min(a,b) ((a) < (b) ? (a) : (b))
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/*
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* Throttle event delivery to applications to keep
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* the exec from using too much memory if the app is
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* slow to process its events.
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*/
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#define MAX_EVT_DELIVERY_QUEUE 1000
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#define MIN_EVT_QUEUE_RESUME (MAX_EVT_DELIVERY_QUEUE / 2)
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static unsigned int evt_delivery_queue_size = MAX_EVT_DELIVERY_QUEUE;
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static unsigned int evt_delivery_queue_resume = MIN_EVT_QUEUE_RESUME;
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#define LOST_PUB "EVENT_SERIVCE"
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#define LOST_CHAN "LOST EVENT"
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/*
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* Event to send when the delivery queue gets too full
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*/
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char lost_evt[] = SA_EVT_LOST_EVENT;
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static int dropped_event_size;
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static struct event_data *dropped_event;
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struct evt_pattern {
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SaEvtEventPatternT pat;
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char str[sizeof(lost_evt)];
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};
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static struct evt_pattern dropped_pattern = {
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.pat = {&dropped_pattern.str[0],
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sizeof(lost_evt)},
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.str = {SA_EVT_LOST_EVENT}
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};
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SaNameT lost_chan = {
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.value = LOST_CHAN,
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.length = sizeof(LOST_CHAN)
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};
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SaNameT dropped_publisher = {
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.value = LOST_PUB,
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.length = sizeof(LOST_PUB)
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};
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struct event_svr_channel_open;
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struct event_svr_channel_subscr;
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struct open_count {
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SaClmNodeIdT oc_node_id;
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int32_t oc_open_count;
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};
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/*
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* Structure to contain global channel releated information
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*
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* esc_channel_name: The name of this channel.
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* esc_total_opens: The total number of opens on this channel including
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* other nodes.
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* esc_local_opens: The number of opens on this channel for this node.
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* esc_oc_size: The total number of entries in esc_node_opens;
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* esc_node_opens: list of node IDs and how many opens are associated.
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* esc_retained_count: How many retained events for this channel
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* esc_open_chans: list of opens of this channel.
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* (event_svr_channel_open.eco_entry)
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* esc_entry: links to other channels. (used by esc_head)
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* esc_unlink_id: If non-zero, then the channel has been marked
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* for unlink. This unlink ID is used to
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* mark events still associated with current openings
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* so they get delivered to the proper recipients.
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*/
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struct event_svr_channel_instance {
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SaNameT esc_channel_name;
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int32_t esc_total_opens;
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int32_t esc_local_opens;
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uint32_t esc_oc_size;
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struct open_count *esc_node_opens;
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uint32_t esc_retained_count;
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struct list_head esc_open_chans;
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struct list_head esc_entry;
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uint64_t esc_unlink_id;
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};
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/*
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* Has the event data in the correct format to send to the library API
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* with aditional field for accounting.
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*
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* ed_ref_count: how many other strutures are referencing.
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* ed_retained: retained event list.
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* ed_timer_handle: Timer handle for retained event expiration.
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* ed_delivered: arrays of open channel pointers that this event
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* has been delivered to. (only used for events
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* with a retention time).
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* ed_delivered_count: Number of entries available in ed_delivered.
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* ed_delivered_next: Next free spot in ed_delivered
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* ed_my_chan: pointer to the global channel instance associated
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* with this event.
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* ed_event: The event data formatted to be ready to send.
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*/
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struct event_data {
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uint32_t ed_ref_count;
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struct list_head ed_retained;
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poll_timer_handle ed_timer_handle;
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struct event_svr_channel_open **ed_delivered;
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uint32_t ed_delivered_count;
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uint32_t ed_delivered_next;
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struct event_svr_channel_instance *ed_my_chan;
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struct lib_event_data ed_event;
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};
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/*
|
|
* Contains a list of pending events to be delivered to a subscribed
|
|
* application.
|
|
*
|
|
* cel_chan_handle: associated library channel handle
|
|
* cel_sub_id: associated library subscription ID
|
|
* cel_event: event structure to deliver.
|
|
* cel_entry: list of pending events
|
|
* (struct event_server_instance.esi_events)
|
|
*/
|
|
struct chan_event_list {
|
|
uint32_t cel_chan_handle;
|
|
uint32_t cel_sub_id;
|
|
struct event_data* cel_event;
|
|
struct list_head cel_entry;
|
|
};
|
|
|
|
/*
|
|
* Contains information about each open for a given channel
|
|
*
|
|
* eco_flags: How the channel was opened.
|
|
* eco_lib_handle: channel handle in the app. Used for event delivery.
|
|
* eco_my_handle: the handle used to access this data structure.
|
|
* eco_channel: Pointer to global channel info.
|
|
* eco_entry: links to other opeinings of this channel.
|
|
* eco_instance_entry: links to other channel opeinings for the
|
|
* associated server instance.
|
|
* eco_subscr: head of list of sbuscriptions for this channel open.
|
|
* (event_svr_channel_subscr.ecs_entry)
|
|
* eco_conn_info: refrence to EvtInitialize who owns this open.
|
|
*/
|
|
struct event_svr_channel_open {
|
|
uint8_t eco_flags;
|
|
uint32_t eco_lib_handle;
|
|
uint32_t eco_my_handle;
|
|
struct event_svr_channel_instance *eco_channel;
|
|
struct list_head eco_entry;
|
|
struct list_head eco_instance_entry;
|
|
struct list_head eco_subscr;
|
|
struct conn_info *eco_conn_info;
|
|
};
|
|
|
|
/*
|
|
* Contains information about each channel subscription
|
|
*
|
|
* ecs_open_chan: Link to our open channel.
|
|
* ecs_sub_id: Subscription ID.
|
|
* ecs_filter_count: number of filters in ecs_filters
|
|
* ecs_filters: filters for determining event delivery.
|
|
* ecs_entry: Links to other subscriptions to this channel opening.
|
|
*/
|
|
struct event_svr_channel_subscr {
|
|
struct event_svr_channel_open *ecs_open_chan;
|
|
uint32_t ecs_sub_id;
|
|
SaEvtEventFilterArrayT *ecs_filters;
|
|
struct list_head ecs_entry;
|
|
};
|
|
|
|
|
|
/*
|
|
* Member node data
|
|
* mn_node_info: cluster node info from membership
|
|
* mn_last_evt_id: last seen event ID for this node
|
|
* mn_started: Indicates that event service has started
|
|
* on this node.
|
|
* mn_next: pointer to the next node in the hash chain.
|
|
* mn_entry: List of all nodes.
|
|
*/
|
|
struct member_node_data {
|
|
struct in_addr mn_node_addr;
|
|
SaClmClusterNodeT mn_node_info;
|
|
SaEvtEventIdT mn_last_evt_id;
|
|
SaClmNodeIdT mn_started;
|
|
struct member_node_data *mn_next;
|
|
struct list_head mn_entry;
|
|
};
|
|
DECLARE_LIST_INIT(mnd);
|
|
/*
|
|
* Take the filters we received from the application via the library and
|
|
* make them into a real SaEvtEventFilterArrayT
|
|
*/
|
|
static SaErrorT evtfilt_to_aisfilt(struct req_evt_event_subscribe *req,
|
|
SaEvtEventFilterArrayT **evtfilters)
|
|
{
|
|
|
|
SaEvtEventFilterArrayT *filta =
|
|
(SaEvtEventFilterArrayT *)req->ics_filter_data;
|
|
SaEvtEventFilterArrayT *filters;
|
|
SaEvtEventFilterT *filt = (void *)filta + sizeof(SaEvtEventFilterArrayT);
|
|
SaUint8T *str = (void *)filta + sizeof(SaEvtEventFilterArrayT) +
|
|
(sizeof(SaEvtEventFilterT) * filta->filtersNumber);
|
|
int i;
|
|
int j;
|
|
|
|
filters = malloc(sizeof(SaEvtEventFilterArrayT));
|
|
if (!filters) {
|
|
return SA_AIS_ERR_NO_MEMORY;
|
|
}
|
|
|
|
filters->filtersNumber = filta->filtersNumber;
|
|
filters->filters = malloc(sizeof(SaEvtEventFilterT) *
|
|
filta->filtersNumber);
|
|
if (!filters->filters) {
|
|
free(filters);
|
|
return SA_AIS_ERR_NO_MEMORY;
|
|
}
|
|
|
|
for (i = 0; i < filters->filtersNumber; i++) {
|
|
filters->filters[i].filter.pattern =
|
|
malloc(filt[i].filter.patternSize);
|
|
|
|
if (!filters->filters[i].filter.pattern) {
|
|
for (j = 0; j < i; j++) {
|
|
free(filters->filters[j].filter.pattern);
|
|
}
|
|
free(filters->filters);
|
|
free(filters);
|
|
return SA_AIS_ERR_NO_MEMORY;
|
|
}
|
|
filters->filters[i].filter.patternSize =
|
|
filt[i].filter.patternSize;
|
|
memcpy(filters->filters[i].filter.pattern,
|
|
str, filters->filters[i].filter.patternSize);
|
|
filters->filters[i].filterType = filt[i].filterType;
|
|
str += filters->filters[i].filter.patternSize;
|
|
}
|
|
|
|
*evtfilters = filters;
|
|
|
|
return SA_AIS_OK;
|
|
}
|
|
|
|
/*
|
|
* Free up filter data
|
|
*/
|
|
static void free_filters(SaEvtEventFilterArrayT *fp)
|
|
{
|
|
int i;
|
|
|
|
for (i = 0; i < fp->filtersNumber; i++) {
|
|
free(fp->filters[i].filter.pattern);
|
|
}
|
|
|
|
free(fp->filters);
|
|
free(fp);
|
|
}
|
|
|
|
/*
|
|
* Look up a channel in the global channel list
|
|
*/
|
|
static struct event_svr_channel_instance *
|
|
find_channel(SaNameT *chan_name, uint64_t unlink_id)
|
|
{
|
|
struct list_head *l, *head;
|
|
struct event_svr_channel_instance *eci;
|
|
|
|
/*
|
|
* choose which list to look through
|
|
*/
|
|
if (unlink_id == EVT_CHAN_ACTIVE) {
|
|
head = &esc_head;
|
|
} else {
|
|
head = &esc_unlinked_head;
|
|
}
|
|
|
|
for (l = head->next; l != head; l = l->next) {
|
|
|
|
eci = list_entry(l, struct event_svr_channel_instance, esc_entry);
|
|
if (!name_match(chan_name, &eci->esc_channel_name)) {
|
|
continue;
|
|
} else if (unlink_id != eci->esc_unlink_id) {
|
|
continue;
|
|
}
|
|
return eci;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* Find the last unlinked version of a channel.
|
|
*/
|
|
static struct event_svr_channel_instance *
|
|
find_last_unlinked_channel(SaNameT *chan_name)
|
|
{
|
|
struct list_head *l;
|
|
struct event_svr_channel_instance *eci;
|
|
|
|
/*
|
|
* unlinked channels are added to the head of the list
|
|
* so the first one we see is the last one added.
|
|
*/
|
|
for (l = esc_unlinked_head.next; l != &esc_unlinked_head; l = l->next) {
|
|
|
|
eci = list_entry(l, struct event_svr_channel_instance, esc_entry);
|
|
if (!name_match(chan_name, &eci->esc_channel_name)) {
|
|
continue;
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* Create and initialize a channel instance structure
|
|
*/
|
|
static struct event_svr_channel_instance *create_channel(SaNameT *cn)
|
|
{
|
|
struct event_svr_channel_instance *eci;
|
|
eci = (struct event_svr_channel_instance *) malloc(sizeof(*eci));
|
|
if (!eci) {
|
|
return (eci);
|
|
}
|
|
|
|
memset(eci, 0, sizeof(*eci));
|
|
list_init(&eci->esc_entry);
|
|
list_init(&eci->esc_open_chans);
|
|
eci->esc_oc_size = total_member_count;
|
|
eci->esc_node_opens =
|
|
malloc(sizeof(struct open_count) * total_member_count);
|
|
if (!eci->esc_node_opens) {
|
|
free(eci);
|
|
return 0;
|
|
}
|
|
memset(eci->esc_node_opens, 0,
|
|
sizeof(struct open_count) * total_member_count);
|
|
eci->esc_channel_name = *cn;
|
|
eci->esc_channel_name.value[eci->esc_channel_name.length] = '\0';
|
|
list_add(&eci->esc_entry, &esc_head);
|
|
|
|
return eci;
|
|
}
|
|
|
|
|
|
/*
|
|
* Make sure that the list of nodes is large enough to hold the whole
|
|
* membership
|
|
*/
|
|
static int check_open_size(struct event_svr_channel_instance *eci)
|
|
{
|
|
if (total_member_count > eci->esc_oc_size) {
|
|
eci->esc_node_opens = realloc(eci->esc_node_opens,
|
|
sizeof(struct open_count) * total_member_count);
|
|
if (!eci->esc_node_opens) {
|
|
log_printf(LOG_LEVEL_WARNING,
|
|
"Memory error realloc of node list\n");
|
|
return -1;
|
|
}
|
|
memset(&eci->esc_node_opens[eci->esc_oc_size], 0,
|
|
sizeof(struct open_count) *
|
|
(total_member_count - eci->esc_oc_size));
|
|
eci->esc_oc_size = total_member_count;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* Find the specified node ID in the node list of the channel.
|
|
* If it's not in the list, add it.
|
|
*/
|
|
static struct open_count* find_open_count(
|
|
struct event_svr_channel_instance *eci,
|
|
SaClmNodeIdT node_id)
|
|
{
|
|
int i;
|
|
|
|
for (i = 0; i < eci->esc_oc_size; i++) {
|
|
if (eci->esc_node_opens[i].oc_node_id == 0) {
|
|
eci->esc_node_opens[i].oc_node_id = node_id;
|
|
eci->esc_node_opens[i].oc_open_count = 0;
|
|
}
|
|
if (eci->esc_node_opens[i].oc_node_id == node_id) {
|
|
return &eci->esc_node_opens[i];
|
|
}
|
|
}
|
|
log_printf(LOG_LEVEL_DEBUG,
|
|
"find_open_count: node id 0x%x not found\n",
|
|
node_id);
|
|
return 0;
|
|
}
|
|
|
|
static void dump_chan_opens(struct event_svr_channel_instance *eci)
|
|
{
|
|
int i;
|
|
log_printf(LOG_LEVEL_NOTICE,
|
|
"Channel %s, total %d, local %d\n",
|
|
eci->esc_channel_name.value,
|
|
eci->esc_total_opens,
|
|
eci->esc_local_opens);
|
|
for (i = 0; i < eci->esc_oc_size; i++) {
|
|
if (eci->esc_node_opens[i].oc_node_id == 0) {
|
|
break;
|
|
}
|
|
log_printf(LOG_LEVEL_NOTICE, "Node 0x%x, count %d\n",
|
|
eci->esc_node_opens[i].oc_node_id,
|
|
eci->esc_node_opens[i].oc_open_count);
|
|
}
|
|
}
|
|
|
|
#ifdef DUMP_CHAN_INFO
|
|
/*
|
|
* Scan the list of channels and dump the open count info.
|
|
*/
|
|
static void dump_all_chans()
|
|
{
|
|
struct list_head *l;
|
|
struct event_svr_channel_instance *eci;
|
|
|
|
for (l = esc_head.next; l != &esc_head; l = l->next) {
|
|
eci = list_entry(l, struct event_svr_channel_instance, esc_entry);
|
|
dump_chan_opens(eci);
|
|
|
|
}
|
|
}
|
|
#endif
|
|
|
|
/*
|
|
* Scan the list of channels and zero out the open counts
|
|
*/
|
|
static void zero_chan_open_counts()
|
|
{
|
|
struct list_head *l;
|
|
struct event_svr_channel_instance *eci;
|
|
int i;
|
|
|
|
for (l = esc_head.next; l != &esc_head; l = l->next) {
|
|
eci = list_entry(l, struct event_svr_channel_instance, esc_entry);
|
|
for (i = 0; i < eci->esc_oc_size; i++) {
|
|
if (eci->esc_node_opens[i].oc_node_id == 0) {
|
|
break;
|
|
}
|
|
eci->esc_node_opens[i].oc_open_count = 0;
|
|
}
|
|
eci->esc_total_opens = 0;
|
|
}
|
|
}
|
|
/*
|
|
* Replace the current open count for a node with the specified value.
|
|
*/
|
|
static int set_open_count(struct event_svr_channel_instance *eci,
|
|
SaClmNodeIdT node_id, uint32_t open_count)
|
|
{
|
|
struct open_count *oc;
|
|
int i;
|
|
|
|
if ((i = check_open_size(eci)) != 0) {
|
|
return i;
|
|
}
|
|
|
|
oc = find_open_count(eci, node_id);
|
|
if (oc) {
|
|
log_printf(RECOVERY_DEBUG,
|
|
"Set count: Chan %s for node 0x%x, was %d, now %d\n",
|
|
eci->esc_channel_name.value, node_id,
|
|
oc->oc_open_count, open_count);
|
|
|
|
eci->esc_total_opens -= oc->oc_open_count;
|
|
eci->esc_total_opens += open_count;
|
|
oc->oc_open_count = open_count;
|
|
return 0;
|
|
}
|
|
return -1;
|
|
}
|
|
|
|
/*
|
|
* Increment the open count for the specified node.
|
|
*/
|
|
static int inc_open_count(struct event_svr_channel_instance *eci,
|
|
SaClmNodeIdT node_id)
|
|
{
|
|
|
|
struct open_count *oc;
|
|
int i;
|
|
|
|
if ((i = check_open_size(eci)) != 0) {
|
|
return i;
|
|
}
|
|
|
|
if (node_id == my_node_id) {
|
|
eci->esc_local_opens++;
|
|
}
|
|
oc = find_open_count(eci, node_id);
|
|
if (oc) {
|
|
eci->esc_total_opens++;
|
|
oc->oc_open_count++;
|
|
return 0;
|
|
}
|
|
return -1;
|
|
}
|
|
|
|
/*
|
|
* Decrement the open count for the specified node in the
|
|
* specified channel.
|
|
*/
|
|
static int dec_open_count(struct event_svr_channel_instance *eci,
|
|
SaClmNodeIdT node_id)
|
|
{
|
|
|
|
struct open_count *oc;
|
|
int i;
|
|
|
|
if ((i = check_open_size(eci)) != 0) {
|
|
return i;
|
|
}
|
|
|
|
if (node_id == my_node_id) {
|
|
eci->esc_local_opens--;
|
|
}
|
|
oc = find_open_count(eci, node_id);
|
|
if (oc) {
|
|
eci->esc_total_opens--;
|
|
oc->oc_open_count--;
|
|
if ((eci->esc_total_opens < 0) || (oc->oc_open_count < 0)) {
|
|
log_printf(LOG_LEVEL_ERROR, "Channel open decrement error\n");
|
|
dump_chan_opens(eci);
|
|
}
|
|
return 0;
|
|
}
|
|
return -1;
|
|
}
|
|
|
|
|
|
/*
|
|
* Remove a channel and free its memory if it's not in use anymore.
|
|
*/
|
|
static void delete_channel(struct event_svr_channel_instance *eci)
|
|
{
|
|
|
|
log_printf(CHAN_DEL_DEBUG,
|
|
"Called Delete channel %s t %d, l %d, r %d\n",
|
|
eci->esc_channel_name.value,
|
|
eci->esc_total_opens, eci->esc_local_opens,
|
|
eci->esc_retained_count);
|
|
/*
|
|
* If no one has the channel open anywhere and there are no unexpired
|
|
* retained events for this channel, and it has been marked for deletion
|
|
* by an unlink, then it is OK to delete the data structure.
|
|
*/
|
|
if ((eci->esc_retained_count == 0) && (eci->esc_total_opens == 0) &&
|
|
(eci->esc_unlink_id != EVT_CHAN_ACTIVE)) {
|
|
log_printf(CHAN_DEL_DEBUG, "Delete channel %s\n",
|
|
eci->esc_channel_name.value);
|
|
log_printf(CHAN_UNLINK_DEBUG, "Delete channel %s, unlink_id %0llx\n",
|
|
eci->esc_channel_name.value, eci->esc_unlink_id);
|
|
|
|
if (!list_empty(&eci->esc_open_chans)) {
|
|
log_printf(LOG_LEVEL_NOTICE,
|
|
"Last channel close request for %s (still open)\n",
|
|
eci->esc_channel_name.value);
|
|
dump_chan_opens(eci);
|
|
return;
|
|
}
|
|
|
|
/*
|
|
* adjust if we're sending open counts on a config change.
|
|
*/
|
|
if ((recovery_phase != evt_recovery_complete) &&
|
|
(&eci->esc_entry == next_chan)) {
|
|
next_chan = eci->esc_entry.next;
|
|
}
|
|
|
|
list_del(&eci->esc_entry);
|
|
if (eci->esc_node_opens) {
|
|
free(eci->esc_node_opens);
|
|
}
|
|
free(eci);
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Mark a channel for deletion.
|
|
*/
|
|
static void unlink_channel(struct event_svr_channel_instance *eci,
|
|
uint64_t unlink_id)
|
|
{
|
|
struct event_data *edp;
|
|
struct list_head *l;
|
|
|
|
log_printf(CHAN_UNLINK_DEBUG, "Unlink request: %s, id 0x%llx\n",
|
|
eci->esc_channel_name.value, unlink_id);
|
|
/*
|
|
* The unlink ID is used to note that the channel has been marked
|
|
* for deletion and is a way to distinguish between multiple
|
|
* channels of the same name each marked for deletion.
|
|
*/
|
|
eci->esc_unlink_id = unlink_id;
|
|
|
|
/*
|
|
* Move the unlinked channel to the unlinked list. This way
|
|
* we don't have to worry about filtering it out when we need to
|
|
* distribute retained events at recovery time.
|
|
*/
|
|
list_del(&eci->esc_entry);
|
|
list_add(&eci->esc_entry, &esc_unlinked_head);
|
|
|
|
/*
|
|
* Scan the retained event list and tag any associated with this channel
|
|
* with the unlink ID so that they get routed properly.
|
|
*/
|
|
for (l = retained_list.next; l != &retained_list; l = l->next) {
|
|
edp = list_entry(l, struct event_data, ed_retained);
|
|
if ((edp->ed_my_chan == eci) &&
|
|
(edp->ed_event.led_chan_unlink_id == EVT_CHAN_ACTIVE)) {
|
|
edp->ed_event.led_chan_unlink_id = unlink_id;
|
|
}
|
|
}
|
|
|
|
delete_channel(eci);
|
|
}
|
|
|
|
/*
|
|
* Remove the specified node from the node list in this channel.
|
|
*/
|
|
static int remove_open_count(
|
|
struct event_svr_channel_instance *eci,
|
|
SaClmNodeIdT node_id)
|
|
{
|
|
int i;
|
|
int j;
|
|
|
|
/*
|
|
* Find the node, remove it and re-pack the array.
|
|
*/
|
|
for (i = 0; i < eci->esc_oc_size; i++) {
|
|
if (eci->esc_node_opens[i].oc_node_id == 0) {
|
|
break;
|
|
}
|
|
|
|
log_printf(RECOVERY_DEBUG, "roc: %x/%x, t %d, oc %d\n",
|
|
node_id, eci->esc_node_opens[i].oc_node_id,
|
|
eci->esc_total_opens, eci->esc_node_opens[i].oc_open_count);
|
|
|
|
if (eci->esc_node_opens[i].oc_node_id == node_id) {
|
|
|
|
eci->esc_total_opens -= eci->esc_node_opens[i].oc_open_count;
|
|
|
|
for (j = i+1; j < eci->esc_oc_size; j++, i++) {
|
|
eci->esc_node_opens[i].oc_node_id =
|
|
eci->esc_node_opens[j].oc_node_id;
|
|
eci->esc_node_opens[i].oc_open_count =
|
|
eci->esc_node_opens[j].oc_open_count;
|
|
}
|
|
|
|
eci->esc_node_opens[eci->esc_oc_size-1].oc_node_id = 0;
|
|
eci->esc_node_opens[eci->esc_oc_size-1].oc_open_count = 0;
|
|
|
|
/*
|
|
* Remove the channel if it's not being used anymore
|
|
*/
|
|
delete_channel(eci);
|
|
return 0;
|
|
}
|
|
}
|
|
return -1;
|
|
}
|
|
|
|
|
|
/*
|
|
* Send a request to open a channel to the rest of the cluster.
|
|
*/
|
|
static SaErrorT evt_open_channel(SaNameT *cn, SaUint8T flgs)
|
|
{
|
|
struct req_evt_chan_command cpkt;
|
|
struct event_svr_channel_instance *eci;
|
|
struct iovec chn_iovec;
|
|
int res;
|
|
SaErrorT ret;
|
|
|
|
ret = SA_AIS_OK;
|
|
|
|
eci = find_channel(cn, EVT_CHAN_ACTIVE);
|
|
|
|
/*
|
|
* If the create flag set, and it doesn't exist, we can make the channel.
|
|
* Otherwise, it's an error since we're notified of channels being created
|
|
* and opened.
|
|
*/
|
|
if (!eci && !(flgs & SA_EVT_CHANNEL_CREATE)) {
|
|
ret = SA_AIS_ERR_NOT_EXIST;
|
|
goto chan_open_end;
|
|
}
|
|
|
|
/*
|
|
* create the channel packet to send. Tell the the cluster
|
|
* to create the channel.
|
|
*/
|
|
memset(&cpkt, 0, sizeof(cpkt));
|
|
cpkt.chc_head.id = MESSAGE_REQ_EXEC_EVT_CHANCMD;
|
|
cpkt.chc_head.size = sizeof(cpkt);
|
|
cpkt.chc_op = EVT_OPEN_CHAN_OP;
|
|
cpkt.u.chc_chan = *cn;
|
|
chn_iovec.iov_base = &cpkt;
|
|
chn_iovec.iov_len = cpkt.chc_head.size;
|
|
log_printf(CHAN_OPEN_DEBUG, "evt_open_channel: Send open mcast\n");
|
|
res = totempg_mcast (&chn_iovec, 1, TOTEMPG_AGREED);
|
|
log_printf(CHAN_OPEN_DEBUG, "evt_open_channel: Open mcast result: %d\n",
|
|
res);
|
|
if (res != 0) {
|
|
ret = SA_AIS_ERR_LIBRARY;
|
|
}
|
|
|
|
chan_open_end:
|
|
return ret;
|
|
|
|
}
|
|
|
|
/*
|
|
* Send a request to close a channel with the rest of the cluster.
|
|
*/
|
|
static SaErrorT evt_close_channel(SaNameT *cn, uint64_t unlink_id)
|
|
{
|
|
struct req_evt_chan_command cpkt;
|
|
struct iovec chn_iovec;
|
|
int res;
|
|
SaErrorT ret;
|
|
|
|
ret = SA_AIS_OK;
|
|
|
|
/*
|
|
* create the channel packet to send. Tell the the cluster
|
|
* to close the channel.
|
|
*/
|
|
memset(&cpkt, 0, sizeof(cpkt));
|
|
cpkt.chc_head.id = MESSAGE_REQ_EXEC_EVT_CHANCMD;
|
|
cpkt.chc_head.size = sizeof(cpkt);
|
|
cpkt.chc_op = EVT_CLOSE_CHAN_OP;
|
|
cpkt.u.chcu.chcu_name = *cn;
|
|
cpkt.u.chcu.chcu_unlink_id = unlink_id;
|
|
chn_iovec.iov_base = &cpkt;
|
|
chn_iovec.iov_len = cpkt.chc_head.size;
|
|
res = totempg_mcast (&chn_iovec, 1, TOTEMPG_AGREED);
|
|
if (res != 0) {
|
|
ret = SA_AIS_ERR_LIBRARY;
|
|
}
|
|
return ret;
|
|
|
|
}
|
|
|
|
/*
|
|
* Node data access functions. Used to keep track of event IDs
|
|
* delivery of messages.
|
|
*
|
|
* add_node: Add a new member node to our list.
|
|
* remove_node: Remove a node that left membership.
|
|
* find_node: Given the node ID return a pointer to node information.
|
|
*
|
|
*/
|
|
#define NODE_HASH_SIZE 256
|
|
static struct member_node_data *nl[NODE_HASH_SIZE] = {0};
|
|
inline int
|
|
hash_sock_addr(struct in_addr addr)
|
|
{
|
|
return addr.s_addr & (NODE_HASH_SIZE - 1);
|
|
}
|
|
|
|
static struct member_node_data **lookup_node(struct in_addr addr)
|
|
{
|
|
int index = hash_sock_addr(addr);
|
|
struct member_node_data **nlp;
|
|
|
|
nlp = &nl[index];
|
|
for (nlp = &nl[index]; *nlp; nlp = &((*nlp)->mn_next)) {
|
|
if ((*nlp)->mn_node_addr.s_addr == addr.s_addr) {
|
|
break;
|
|
}
|
|
}
|
|
|
|
return nlp;
|
|
}
|
|
|
|
static struct member_node_data *
|
|
evt_find_node(struct in_addr addr)
|
|
{
|
|
struct member_node_data **nlp;
|
|
|
|
nlp = lookup_node(addr);
|
|
|
|
if (!nlp) {
|
|
log_printf(LOG_LEVEL_DEBUG, "find_node: Got NULL nlp?\n");
|
|
return 0;
|
|
}
|
|
|
|
return *nlp;
|
|
}
|
|
|
|
static SaErrorT
|
|
evt_add_node(struct in_addr addr, SaClmClusterNodeT *cn)
|
|
{
|
|
struct member_node_data **nlp;
|
|
struct member_node_data *nl;
|
|
SaErrorT err = SA_AIS_ERR_EXIST;
|
|
|
|
nlp = lookup_node(addr);
|
|
|
|
if (!nlp) {
|
|
log_printf(LOG_LEVEL_DEBUG, "add_node: Got NULL nlp?\n");
|
|
goto an_out;
|
|
}
|
|
|
|
if (*nlp) {
|
|
goto an_out;
|
|
}
|
|
|
|
*nlp = malloc(sizeof(struct member_node_data));
|
|
if (!(*nlp)) {
|
|
return SA_AIS_ERR_NO_MEMORY;
|
|
}
|
|
nl = *nlp;
|
|
if (nl) {
|
|
memset(nl, 0, sizeof(*nl));
|
|
err = SA_AIS_OK;
|
|
nl->mn_node_addr = addr;
|
|
nl->mn_started = 1;
|
|
}
|
|
list_init(&nl->mn_entry);
|
|
list_add(&nl->mn_entry, &mnd);
|
|
nl->mn_node_info = *cn;
|
|
|
|
an_out:
|
|
return err;
|
|
}
|
|
|
|
/*
|
|
* Find the oldest node in the membership. This is the one we choose to
|
|
* perform some cluster-wide functions like distributing retained events.
|
|
* We only check nodes that were in our transitional configuration. In this
|
|
* way there is a recovery node chosen for each original partition in case
|
|
* of a merge.
|
|
*/
|
|
static struct member_node_data* oldest_node()
|
|
{
|
|
struct member_node_data *mn = 0;
|
|
struct member_node_data *oldest = 0;
|
|
int i;
|
|
|
|
for (i = 0; i < trans_member_count; i++) {
|
|
mn = evt_find_node(trans_member_list[i]);
|
|
if (!mn || (mn->mn_started == 0)) {
|
|
log_printf(LOG_LEVEL_ERROR,
|
|
"Transitional config Node %s not active\n",
|
|
inet_ntoa(trans_member_list[i]));
|
|
continue;
|
|
}
|
|
if ((oldest == NULL) ||
|
|
(mn->mn_node_info.bootTimestamp <
|
|
oldest->mn_node_info.bootTimestamp )) {
|
|
oldest = mn;
|
|
} else if (mn->mn_node_info.bootTimestamp ==
|
|
oldest->mn_node_info.bootTimestamp) {
|
|
if (mn->mn_node_info.nodeId < oldest->mn_node_info.nodeId) {
|
|
oldest = mn;
|
|
}
|
|
}
|
|
}
|
|
return oldest;
|
|
}
|
|
|
|
|
|
/*
|
|
* keep track of the last event ID from a node.
|
|
* If we get an event ID less than our last, we've already
|
|
* seen it. It's probably a retained event being sent to
|
|
* a new node.
|
|
*/
|
|
static int check_last_event(struct lib_event_data *evtpkt,
|
|
struct in_addr addr)
|
|
{
|
|
struct member_node_data *nd;
|
|
SaClmClusterNodeT *cn;
|
|
|
|
|
|
nd = evt_find_node(addr);
|
|
if (!nd) {
|
|
log_printf(LOG_LEVEL_DEBUG,
|
|
"Node ID 0x%x not found for event %llx\n",
|
|
evtpkt->led_publisher_node_id, evtpkt->led_event_id);
|
|
cn = clm_get_by_nodeid(addr);
|
|
if (!cn) {
|
|
log_printf(LOG_LEVEL_DEBUG,
|
|
"Cluster Node 0x%x not found for event %llx\n",
|
|
evtpkt->led_publisher_node_id, evtpkt->led_event_id);
|
|
} else {
|
|
evt_add_node(addr, cn);
|
|
nd = evt_find_node(addr);
|
|
}
|
|
}
|
|
|
|
if (!nd) {
|
|
return 0;
|
|
}
|
|
|
|
if ((nd->mn_last_evt_id < evtpkt->led_event_id)) {
|
|
nd->mn_last_evt_id = evtpkt->led_event_id;
|
|
return 0;
|
|
}
|
|
return 1;
|
|
}
|
|
|
|
/*
|
|
* event id generating code. We use the node ID for this node for the
|
|
* upper 32 bits of the event ID to make sure that we can generate a cluster
|
|
* wide unique event ID for a given event.
|
|
*/
|
|
SaErrorT set_event_id(SaClmNodeIdT node_id)
|
|
{
|
|
SaErrorT err = SA_AIS_OK;
|
|
if (base_id_top) {
|
|
err = SA_AIS_ERR_EXIST;
|
|
}
|
|
base_id_top = (SaEvtEventIdT)node_id << 32;
|
|
return err;
|
|
}
|
|
|
|
static SaErrorT get_event_id(uint64_t *event_id)
|
|
{
|
|
*event_id = base_id_top | base_id ;
|
|
base_id = (base_id + 1) & BASE_ID_MASK;
|
|
return SA_AIS_OK;
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
* Free up an event structure if it isn't being used anymore.
|
|
*/
|
|
static void
|
|
free_event_data(struct event_data *edp)
|
|
{
|
|
if (--edp->ed_ref_count) {
|
|
return;
|
|
}
|
|
log_printf(LOG_LEVEL_DEBUG, "Freeing event ID: 0x%llx\n",
|
|
edp->ed_event.led_event_id);
|
|
if (edp->ed_delivered) {
|
|
free(edp->ed_delivered);
|
|
}
|
|
|
|
free(edp);
|
|
}
|
|
|
|
/*
|
|
* Timer handler to delete expired events.
|
|
*
|
|
*/
|
|
static void
|
|
event_retention_timeout(void *data)
|
|
{
|
|
struct event_data *edp = data;
|
|
log_printf(LOG_LEVEL_DEBUG, "Event ID %llx expired\n",
|
|
edp->ed_event.led_event_id);
|
|
/*
|
|
* adjust next_retained if we're in recovery and
|
|
* were in charge of sending retained events.
|
|
*/
|
|
if (recovery_phase != evt_recovery_complete && recovery_node) {
|
|
if (next_retained == &edp->ed_retained) {
|
|
next_retained = edp->ed_retained.next;
|
|
}
|
|
}
|
|
list_del(&edp->ed_retained);
|
|
list_init(&edp->ed_retained);
|
|
/*
|
|
* Check to see if the channel isn't in use anymore.
|
|
*/
|
|
edp->ed_my_chan->esc_retained_count--;
|
|
if (edp->ed_my_chan->esc_retained_count == 0) {
|
|
delete_channel(edp->ed_my_chan);
|
|
}
|
|
free_event_data(edp);
|
|
}
|
|
|
|
/*
|
|
* clear a particular event's retention time.
|
|
* This will free the event as long as it isn't being
|
|
* currently used.
|
|
*
|
|
*/
|
|
static void
|
|
clear_retention_time(SaEvtEventIdT event_id)
|
|
{
|
|
struct event_data *edp;
|
|
struct list_head *l, *nxt;
|
|
int ret;
|
|
|
|
log_printf(LOG_LEVEL_DEBUG, "Search for Event ID %llx\n", event_id);
|
|
for (l = retained_list.next; l != &retained_list; l = nxt) {
|
|
nxt = l->next;
|
|
edp = list_entry(l, struct event_data, ed_retained);
|
|
if (edp->ed_event.led_event_id != event_id) {
|
|
continue;
|
|
}
|
|
|
|
log_printf(LOG_LEVEL_DEBUG,
|
|
"Clear retention time for Event ID %llx\n",
|
|
edp->ed_event.led_event_id);
|
|
ret = poll_timer_delete(aisexec_poll_handle, edp->ed_timer_handle);
|
|
if (ret != 0 ) {
|
|
log_printf(LOG_LEVEL_ERROR, "Error expiring event ID %llx\n",
|
|
edp->ed_event.led_event_id);
|
|
return;
|
|
}
|
|
edp->ed_event.led_retention_time = 0;
|
|
list_del(&edp->ed_retained);
|
|
list_init(&edp->ed_retained);
|
|
|
|
/*
|
|
* Check to see if the channel isn't in use anymore.
|
|
*/
|
|
edp->ed_my_chan->esc_retained_count--;
|
|
if (edp->ed_my_chan->esc_retained_count == 0) {
|
|
delete_channel(edp->ed_my_chan);
|
|
}
|
|
free_event_data(edp);
|
|
break;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Remove specified channel from event delivery list
|
|
*/
|
|
static void
|
|
remove_delivered_channel(struct event_svr_channel_open *eco)
|
|
{
|
|
int i;
|
|
struct list_head *l;
|
|
struct event_data *edp;
|
|
|
|
for (l = retained_list.next; l != &retained_list; l = l->next) {
|
|
edp = list_entry(l, struct event_data, ed_retained);
|
|
|
|
for (i = 0; i < edp->ed_delivered_next; i++) {
|
|
if (edp->ed_delivered[i] == eco) {
|
|
edp->ed_delivered_next--;
|
|
if (edp->ed_delivered_next == i) {
|
|
break;
|
|
}
|
|
memmove(&edp->ed_delivered[i],
|
|
&edp->ed_delivered[i+1],
|
|
&edp->ed_delivered[edp->ed_delivered_next] -
|
|
&edp->ed_delivered[i]);
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
return;
|
|
}
|
|
|
|
/*
|
|
* If there is a retention time, add this open channel to the event so
|
|
* we can check if we've already delivered this message later if a new
|
|
* subscription matches.
|
|
*/
|
|
#define DELIVER_SIZE 8
|
|
static void
|
|
evt_delivered(struct event_data *evt, struct event_svr_channel_open *eco)
|
|
{
|
|
if (!evt->ed_event.led_retention_time) {
|
|
return;
|
|
}
|
|
|
|
log_printf(LOG_LEVEL_DEBUG, "delivered ID %llx to eco %p\n",
|
|
evt->ed_event.led_event_id, eco);
|
|
if (evt->ed_delivered_count == evt->ed_delivered_next) {
|
|
evt->ed_delivered = realloc(evt->ed_delivered,
|
|
DELIVER_SIZE * sizeof(struct event_svr_channel_open *));
|
|
memset(evt->ed_delivered + evt->ed_delivered_next, 0,
|
|
DELIVER_SIZE * sizeof(struct event_svr_channel_open *));
|
|
evt->ed_delivered_next = evt->ed_delivered_count;
|
|
evt->ed_delivered_count += DELIVER_SIZE;
|
|
}
|
|
|
|
evt->ed_delivered[evt->ed_delivered_next++] = eco;
|
|
}
|
|
|
|
/*
|
|
* Check to see if an event has already been delivered to this open channel
|
|
*/
|
|
static int
|
|
evt_already_delivered(struct event_data *evt,
|
|
struct event_svr_channel_open *eco)
|
|
{
|
|
int i;
|
|
|
|
if (!evt->ed_event.led_retention_time) {
|
|
return 0;
|
|
}
|
|
|
|
log_printf(LOG_LEVEL_DEBUG, "Deliver count: %d deliver_next %d\n",
|
|
evt->ed_delivered_count, evt->ed_delivered_next);
|
|
for (i = 0; i < evt->ed_delivered_next; i++) {
|
|
log_printf(LOG_LEVEL_DEBUG, "Checking ID %llx delivered %p eco %p\n",
|
|
evt->ed_event.led_event_id, evt->ed_delivered[i], eco);
|
|
if (evt->ed_delivered[i] == eco) {
|
|
return 1;
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* Compare a filter to a given pattern.
|
|
* return SA_AIS_OK if the pattern matches a filter
|
|
*/
|
|
static SaErrorT
|
|
filter_match(SaEvtEventPatternT *ep, SaEvtEventFilterT *ef)
|
|
{
|
|
int ret;
|
|
ret = SA_AIS_ERR_FAILED_OPERATION;
|
|
|
|
switch (ef->filterType) {
|
|
case SA_EVT_PREFIX_FILTER:
|
|
if (ef->filter.patternSize > ep->patternSize) {
|
|
break;
|
|
}
|
|
if (strncmp(ef->filter.pattern, ep->pattern,
|
|
ef->filter.patternSize) == 0) {
|
|
ret = SA_AIS_OK;
|
|
}
|
|
break;
|
|
case SA_EVT_SUFFIX_FILTER:
|
|
if (ef->filter.patternSize > ep->patternSize) {
|
|
break;
|
|
}
|
|
if (strncmp(ef->filter.pattern,
|
|
&ep->pattern[ep->patternSize - ef->filter.patternSize],
|
|
ef->filter.patternSize) == 0) {
|
|
ret = SA_AIS_OK;
|
|
}
|
|
|
|
break;
|
|
case SA_EVT_EXACT_FILTER:
|
|
if (ef->filter.patternSize != ep->patternSize) {
|
|
break;
|
|
}
|
|
if (strncmp(ef->filter.pattern, ep->pattern,
|
|
ef->filter.patternSize) == 0) {
|
|
ret = SA_AIS_OK;
|
|
}
|
|
break;
|
|
case SA_EVT_PASS_ALL_FILTER:
|
|
ret = SA_AIS_OK;
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
/*
|
|
* compare the event's patterns with the subscription's filter rules.
|
|
* SA_AIS_OK is returned if the event matches the filter rules.
|
|
*/
|
|
static SaErrorT
|
|
event_match(struct event_data *evt,
|
|
struct event_svr_channel_subscr *ecs)
|
|
{
|
|
SaEvtEventFilterT *ef;
|
|
SaEvtEventPatternT *ep;
|
|
uint32_t filt_count;
|
|
SaErrorT ret = SA_AIS_OK;
|
|
int i;
|
|
|
|
ep = (SaEvtEventPatternT *)(&evt->ed_event.led_body[0]);
|
|
ef = ecs->ecs_filters->filters;
|
|
filt_count = min(ecs->ecs_filters->filtersNumber,
|
|
evt->ed_event.led_patterns_number);
|
|
|
|
for (i = 0; i < filt_count; i++) {
|
|
ret = filter_match(ep, ef);
|
|
if (ret != SA_AIS_OK) {
|
|
break;
|
|
}
|
|
ep++;
|
|
ef++;
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
/*
|
|
* Scan undelivered pending events and either remove them if no subscription
|
|
* filters match anymore or re-assign them to another matching subscription
|
|
*/
|
|
static void
|
|
filter_undelivered_events(struct event_svr_channel_open *op_chan)
|
|
{
|
|
struct event_svr_channel_open *eco;
|
|
struct event_svr_channel_instance *eci;
|
|
struct event_svr_channel_subscr *ecs;
|
|
struct chan_event_list *cel;
|
|
struct libevt_ci *esip = &op_chan->eco_conn_info->ais_ci.u.libevt_ci;
|
|
struct list_head *l, *nxt;
|
|
struct list_head *l1, *l2;
|
|
int i;
|
|
|
|
eci = op_chan->eco_channel;
|
|
|
|
/*
|
|
* Scan each of the priority queues for messages
|
|
*/
|
|
for (i = SA_EVT_HIGHEST_PRIORITY; i <= SA_EVT_LOWEST_PRIORITY; i++) {
|
|
/*
|
|
* examine each message queued for delivery
|
|
*/
|
|
for (l = esip->esi_events[i].next; l != &esip->esi_events[i]; l = nxt) {
|
|
nxt = l->next;
|
|
cel = list_entry(l, struct chan_event_list, cel_entry);
|
|
/*
|
|
* Check open channels
|
|
*/
|
|
for (l1 = eci->esc_open_chans.next;
|
|
l1 != &eci->esc_open_chans; l1 = l1->next) {
|
|
eco = list_entry(l1, struct event_svr_channel_open, eco_entry);
|
|
|
|
/*
|
|
* See if this channel open instance belongs
|
|
* to this evtinitialize instance
|
|
*/
|
|
if (eco->eco_conn_info != op_chan->eco_conn_info) {
|
|
continue;
|
|
}
|
|
|
|
/*
|
|
* See if enabled to receive
|
|
*/
|
|
if (!(eco->eco_flags & SA_EVT_CHANNEL_SUBSCRIBER)) {
|
|
continue;
|
|
}
|
|
|
|
/*
|
|
* Check subscriptions
|
|
*/
|
|
for (l2 = eco->eco_subscr.next;
|
|
l2 != &eco->eco_subscr; l2 = l2->next) {
|
|
ecs = list_entry(l2,
|
|
struct event_svr_channel_subscr, ecs_entry);
|
|
if (event_match(cel->cel_event, ecs) == SA_AIS_OK) {
|
|
/*
|
|
* Something still matches.
|
|
* We'll assign it to
|
|
* the new subscription.
|
|
*/
|
|
cel->cel_sub_id = ecs->ecs_sub_id;
|
|
cel->cel_chan_handle = eco->eco_lib_handle;
|
|
goto next_event;
|
|
}
|
|
}
|
|
}
|
|
/*
|
|
* No subscription filter matches anymore. We
|
|
* can delete this event.
|
|
*/
|
|
list_del(&cel->cel_entry);
|
|
list_init(&cel->cel_entry);
|
|
esip->esi_nevents--;
|
|
|
|
free_event_data(cel->cel_event);
|
|
free(cel);
|
|
next_event:
|
|
continue;
|
|
}
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Notify the library of a pending event
|
|
*/
|
|
static void __notify_event(struct conn_info *conn_info)
|
|
{
|
|
struct res_evt_event_data res;
|
|
struct libevt_ci *esip = &conn_info->ais_ci.u.libevt_ci;
|
|
|
|
log_printf(LOG_LEVEL_DEBUG, "DELIVER: notify\n");
|
|
if (esip->esi_nevents != 0) {
|
|
res.evd_head.size = sizeof(res);
|
|
res.evd_head.id = MESSAGE_RES_EVT_AVAILABLE;
|
|
res.evd_head.error = SA_AIS_OK;
|
|
libais_send_response(conn_info->conn_info_partner, &res, sizeof(res));
|
|
}
|
|
|
|
}
|
|
inline void notify_event(struct conn_info *conn_info)
|
|
{
|
|
struct libevt_ci *esip = &conn_info->ais_ci.u.libevt_ci;
|
|
|
|
/*
|
|
* Give the library a kick if there aren't already
|
|
* events queued for delivery.
|
|
*/
|
|
if (esip->esi_nevents++ == 0) {
|
|
__notify_event(conn_info);
|
|
}
|
|
}
|
|
|
|
/*
|
|
* sends/queues up an event for a subscribed channel.
|
|
*/
|
|
static void
|
|
deliver_event(struct event_data *evt,
|
|
struct event_svr_channel_open *eco,
|
|
struct event_svr_channel_subscr *ecs)
|
|
{
|
|
struct chan_event_list *ep;
|
|
struct libevt_ci *esip = &eco->eco_conn_info->ais_ci.u.libevt_ci;
|
|
SaEvtEventPriorityT evt_prio = evt->ed_event.led_priority;
|
|
struct chan_event_list *cel;
|
|
int do_deliver_event = 0;
|
|
int do_deliver_warning = 0;
|
|
int i;
|
|
|
|
if (evt_prio > SA_EVT_LOWEST_PRIORITY) {
|
|
evt_prio = SA_EVT_LOWEST_PRIORITY;
|
|
}
|
|
|
|
/*
|
|
* Delivery queue check.
|
|
* - If the queue is blocked, see if we've sent enough messages to
|
|
* unblock it.
|
|
* - If it isn't blocked, see if this message will put us over the top.
|
|
* - If we can't deliver this message, see if we can toss some lower
|
|
* priority message to make room for this one.
|
|
* - If we toss any messages, queue up an event of SA_EVT_LOST_EVENT_PATTERN
|
|
* to let the application know that we dropped some messages.
|
|
*/
|
|
if (esip->esi_queue_blocked) {
|
|
if (esip->esi_nevents < evt_delivery_queue_resume) {
|
|
esip->esi_queue_blocked = 0;
|
|
log_printf(LOG_LEVEL_DEBUG, "unblock\n");
|
|
}
|
|
}
|
|
|
|
if (!esip->esi_queue_blocked &&
|
|
(esip->esi_nevents >= evt_delivery_queue_size)) {
|
|
log_printf(LOG_LEVEL_DEBUG, "block\n");
|
|
esip->esi_queue_blocked = 1;
|
|
do_deliver_warning = 1;
|
|
}
|
|
|
|
if (esip->esi_queue_blocked) {
|
|
do_deliver_event = 0;
|
|
for (i = SA_EVT_LOWEST_PRIORITY; i > evt_prio; i--) {
|
|
if (!list_empty(&esip->esi_events[i])) {
|
|
/*
|
|
* Get the last item on the list, so we drop the most
|
|
* recent lowest priority event.
|
|
*/
|
|
cel = list_entry(esip->esi_events[i].prev,
|
|
struct chan_event_list, cel_entry);
|
|
log_printf(LOG_LEVEL_DEBUG, "Drop 0x%0llx\n",
|
|
cel->cel_event->ed_event.led_event_id);
|
|
list_del(&cel->cel_entry);
|
|
free_event_data(cel->cel_event);
|
|
free(cel);
|
|
esip->esi_nevents--;
|
|
do_deliver_event = 1;
|
|
break;
|
|
}
|
|
}
|
|
} else {
|
|
do_deliver_event = 1;
|
|
}
|
|
|
|
/*
|
|
* Queue the event for delivery
|
|
*/
|
|
if (do_deliver_event) {
|
|
ep = malloc(sizeof(*ep));
|
|
if (!ep) {
|
|
log_printf(LOG_LEVEL_WARNING,
|
|
"3Memory allocation error, can't deliver event\n");
|
|
return;
|
|
}
|
|
evt->ed_ref_count++;
|
|
ep->cel_chan_handle = eco->eco_lib_handle;
|
|
ep->cel_sub_id = ecs->ecs_sub_id;
|
|
list_init(&ep->cel_entry);
|
|
ep->cel_event = evt;
|
|
list_add_tail(&ep->cel_entry, &esip->esi_events[evt_prio]);
|
|
evt_delivered(evt, eco);
|
|
notify_event(eco->eco_conn_info);
|
|
}
|
|
|
|
/*
|
|
* If we dropped an event, queue this so that the application knows
|
|
* what has happened.
|
|
*/
|
|
if (do_deliver_warning) {
|
|
struct event_data *ed;
|
|
ed = malloc(dropped_event_size);
|
|
if (!ed) {
|
|
log_printf(LOG_LEVEL_WARNING,
|
|
"4Memory allocation error, can't deliver event\n");
|
|
return;
|
|
}
|
|
log_printf(LOG_LEVEL_DEBUG, "Warn 0x%0llx\n",
|
|
evt->ed_event.led_event_id);
|
|
memcpy(ed, dropped_event, dropped_event_size);
|
|
ed->ed_event.led_publish_time = clust_time_now();
|
|
ed->ed_event.led_event_id = SA_EVT_EVENTID_LOST;
|
|
list_init(&ed->ed_retained);
|
|
|
|
ep = malloc(sizeof(*ep));
|
|
if (!ep) {
|
|
log_printf(LOG_LEVEL_WARNING,
|
|
"5Memory allocation error, can't deliver event\n");
|
|
return;
|
|
}
|
|
ep->cel_chan_handle = eco->eco_lib_handle;
|
|
ep->cel_sub_id = ecs->ecs_sub_id;
|
|
list_init(&ep->cel_entry);
|
|
ep->cel_event = ed;
|
|
list_add_tail(&ep->cel_entry, &esip->esi_events[SA_EVT_HIGHEST_PRIORITY]);
|
|
notify_event(eco->eco_conn_info);
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Take the event data and swap the elements so they match our architectures
|
|
* word order.
|
|
*/
|
|
static void
|
|
convert_event(struct lib_event_data *evt)
|
|
{
|
|
SaEvtEventPatternT *eps;
|
|
int i;
|
|
|
|
/*
|
|
* The following elements don't require processing:
|
|
*
|
|
* converted in the main deliver_fn:
|
|
* led_head.id, led_head.size.
|
|
*
|
|
* Supplied localy:
|
|
* source_addr, publisher_node_id, receive_time.
|
|
*
|
|
* Used internaly only:
|
|
* led_svr_channel_handle and led_lib_channel_handle.
|
|
*/
|
|
|
|
evt->led_chan_name.length = swab16(evt->led_chan_name.length);
|
|
evt->led_chan_unlink_id = swab64(evt->led_chan_unlink_id);
|
|
evt->led_event_id = swab64(evt->led_event_id);
|
|
evt->led_sub_id = swab32(evt->led_sub_id);
|
|
evt->led_publisher_name.length = swab32(evt->led_publisher_name.length);
|
|
evt->led_retention_time = swab64(evt->led_retention_time);
|
|
evt->led_publish_time = swab64(evt->led_publish_time);
|
|
evt->led_user_data_offset = swab32(evt->led_user_data_offset);
|
|
evt->led_user_data_size = swab32(evt->led_user_data_size);
|
|
evt->led_patterns_number = swab32(evt->led_patterns_number);
|
|
|
|
/*
|
|
* Now we need to go through the led_body and swizzle pattern counts.
|
|
* We can't do anything about user data since it doesn't have a specified
|
|
* format. The application is on its own here.
|
|
*/
|
|
eps = (SaEvtEventPatternT *)evt->led_body;
|
|
for (i = 0; i < evt->led_patterns_number; i++) {
|
|
eps->patternSize = swab32(eps->patternSize);
|
|
eps++;
|
|
}
|
|
|
|
}
|
|
|
|
/*
|
|
* Take an event received from the network and fix it up to be usable.
|
|
* - fix up pointers for pattern list.
|
|
* - fill in some channel info
|
|
*/
|
|
static struct event_data *
|
|
make_local_event(struct lib_event_data *p,
|
|
struct event_svr_channel_instance *eci)
|
|
{
|
|
struct event_data *ed;
|
|
SaEvtEventPatternT *eps;
|
|
SaUint8T *str;
|
|
uint32_t ed_size;
|
|
int i;
|
|
|
|
ed_size = sizeof(*ed) + p->led_user_data_offset + p->led_user_data_size;
|
|
ed = malloc(ed_size);
|
|
if (!ed) {
|
|
log_printf(LOG_LEVEL_WARNING,
|
|
"Failed to allocate %u bytes for event, offset %u, data size %u\n",
|
|
ed_size, p->led_user_data_offset, p->led_user_data_size);
|
|
return 0;
|
|
}
|
|
memset(ed, 0, ed_size);
|
|
list_init(&ed->ed_retained);
|
|
ed->ed_my_chan = eci;
|
|
|
|
/*
|
|
* Fill in lib_event_data and make the pattern pointers valid
|
|
*/
|
|
memcpy(&ed->ed_event, p, sizeof(*p) +
|
|
p->led_user_data_offset + p->led_user_data_size);
|
|
|
|
eps = (SaEvtEventPatternT *)ed->ed_event.led_body;
|
|
str = ed->ed_event.led_body +
|
|
(ed->ed_event.led_patterns_number * sizeof(SaEvtEventPatternT));
|
|
for (i = 0; i < ed->ed_event.led_patterns_number; i++) {
|
|
eps->pattern = str;
|
|
str += eps->patternSize;
|
|
eps++;
|
|
}
|
|
|
|
ed->ed_ref_count++;
|
|
return ed;
|
|
}
|
|
|
|
/*
|
|
* Set an event to be retained.
|
|
*/
|
|
static void retain_event(struct event_data *evt)
|
|
{
|
|
uint32_t ret;
|
|
int msec_in_future;
|
|
|
|
evt->ed_ref_count++;
|
|
evt->ed_my_chan->esc_retained_count++;
|
|
list_add_tail(&evt->ed_retained, &retained_list);
|
|
/*
|
|
* Time in nanoseconds - convert to miliseconds
|
|
*/
|
|
msec_in_future = (uint32_t)((evt->ed_event.led_retention_time) / 1000000ULL);
|
|
ret = poll_timer_add(aisexec_poll_handle,
|
|
msec_in_future,
|
|
evt,
|
|
event_retention_timeout,
|
|
&evt->ed_timer_handle);
|
|
if (ret != 0) {
|
|
log_printf(LOG_LEVEL_ERROR,
|
|
"retention of event id 0x%llx failed\n",
|
|
evt->ed_event.led_event_id);
|
|
} else {
|
|
log_printf(LOG_LEVEL_DEBUG, "Retain event ID 0x%llx\n",
|
|
evt->ed_event.led_event_id);
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Scan the subscription list and look for the specified subsctiption ID.
|
|
* Only look for the ID in subscriptions that are associated with the
|
|
* saEvtInitialize associated with the specified open channel.
|
|
*/
|
|
static struct event_svr_channel_subscr *find_subscr(
|
|
struct event_svr_channel_open *open_chan, SaEvtSubscriptionIdT sub_id)
|
|
{
|
|
struct event_svr_channel_instance *eci;
|
|
struct event_svr_channel_subscr *ecs;
|
|
struct event_svr_channel_open *eco;
|
|
struct list_head *l, *l1;
|
|
struct conn_info* conn_info = open_chan->eco_conn_info;
|
|
|
|
eci = open_chan->eco_channel;
|
|
|
|
/*
|
|
* Check for subscription id already in use.
|
|
* Subscriptions are unique within saEvtInitialize (Callback scope).
|
|
*/
|
|
for (l = eci->esc_open_chans.next; l != &eci->esc_open_chans; l = l->next) {
|
|
eco = list_entry(l, struct event_svr_channel_open, eco_entry);
|
|
/*
|
|
* Don't bother with open channels associated with another
|
|
* EvtInitialize
|
|
*/
|
|
if (eco->eco_conn_info != conn_info) {
|
|
continue;
|
|
}
|
|
|
|
for (l1 = eco->eco_subscr.next; l1 != &eco->eco_subscr; l1 = l1->next) {
|
|
ecs = list_entry(l1, struct event_svr_channel_subscr, ecs_entry);
|
|
if (ecs->ecs_sub_id == sub_id) {
|
|
return ecs;
|
|
}
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* Handler for saEvtInitialize
|
|
*/
|
|
static int evt_initialize(struct conn_info *conn_info)
|
|
{
|
|
struct libevt_ci *libevt_ci;
|
|
struct conn_info *resp_conn_info;
|
|
int i;
|
|
|
|
|
|
log_printf(LOG_LEVEL_DEBUG, "saEvtInitialize request.\n");
|
|
list_init (&conn_info->conn_list);
|
|
resp_conn_info = conn_info->conn_info_partner;
|
|
list_init (&resp_conn_info->conn_list);
|
|
|
|
libevt_ci = &resp_conn_info->ais_ci.u.libevt_ci;
|
|
|
|
/*
|
|
* Initailze event instance data
|
|
*/
|
|
|
|
memset(libevt_ci, 0, sizeof(*libevt_ci));
|
|
|
|
/*
|
|
* list of channels open on this instance
|
|
*/
|
|
list_init(&libevt_ci->esi_open_chans);
|
|
|
|
/*
|
|
* pending event lists for each piriority
|
|
*/
|
|
for (i = SA_EVT_HIGHEST_PRIORITY; i <= SA_EVT_LOWEST_PRIORITY; i++) {
|
|
list_init(&libevt_ci->esi_events[i]);
|
|
}
|
|
|
|
/*
|
|
* Keep track of all event service connections
|
|
*/
|
|
list_add_tail(&resp_conn_info->conn_list, &ci_head);
|
|
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* Handler for saEvtChannelOpen
|
|
*/
|
|
static int lib_evt_open_channel(struct conn_info *conn_info, void *message)
|
|
{
|
|
SaErrorT error;
|
|
struct req_evt_channel_open *req;
|
|
struct res_evt_channel_open res;
|
|
struct open_chan_pending *ocp;
|
|
int msec_in_future;
|
|
int ret;
|
|
|
|
req = message;
|
|
|
|
|
|
log_printf(CHAN_OPEN_DEBUG,
|
|
"saEvtChannelOpen (Open channel request)\n");
|
|
log_printf(CHAN_OPEN_DEBUG,
|
|
"handle 0x%x, to 0x%llx\n",
|
|
req->ico_c_handle,
|
|
req->ico_timeout);
|
|
log_printf(CHAN_OPEN_DEBUG, "flags %x, channel name(%d) %s\n",
|
|
req->ico_open_flag,
|
|
req->ico_channel_name.length,
|
|
req->ico_channel_name.value);
|
|
/*
|
|
* Open the channel.
|
|
*
|
|
*/
|
|
error = evt_open_channel(&req->ico_channel_name, req->ico_open_flag);
|
|
|
|
if (error != SA_AIS_OK) {
|
|
goto open_return;
|
|
}
|
|
|
|
ocp = malloc(sizeof(struct open_chan_pending));
|
|
if (!ocp) {
|
|
error = SA_AIS_ERR_NO_MEMORY;
|
|
goto open_return;
|
|
}
|
|
|
|
ocp->ocp_async = 0;
|
|
ocp->ocp_invocation = 0;
|
|
ocp->ocp_chan_name = req->ico_channel_name;
|
|
ocp->ocp_open_flag = req->ico_open_flag;
|
|
ocp->ocp_conn_info = conn_info;
|
|
ocp->ocp_c_handle = req->ico_c_handle;
|
|
ocp->ocp_timer_handle = 0;
|
|
list_init(&ocp->ocp_entry);
|
|
list_add_tail(&ocp->ocp_entry, &open_pending);
|
|
if (req->ico_timeout != 0) {
|
|
/*
|
|
* Time in nanoseconds - convert to miliseconds
|
|
*/
|
|
msec_in_future = (uint32_t)(req->ico_timeout / 1000000ULL);
|
|
ret = poll_timer_add(aisexec_poll_handle,
|
|
msec_in_future,
|
|
ocp,
|
|
chan_open_timeout,
|
|
&ocp->ocp_timer_handle);
|
|
if (ret != 0) {
|
|
log_printf(LOG_LEVEL_WARNING,
|
|
"Error setting timeout for open channel %s\n",
|
|
req->ico_channel_name.value);
|
|
}
|
|
}
|
|
return 0;
|
|
|
|
|
|
open_return:
|
|
res.ico_head.size = sizeof(res);
|
|
res.ico_head.id = MESSAGE_RES_EVT_OPEN_CHANNEL;
|
|
res.ico_head.error = error;
|
|
libais_send_response (conn_info, &res, sizeof(res));
|
|
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* Handler for saEvtChannelOpen
|
|
*/
|
|
static int lib_evt_open_channel_async(struct conn_info *conn_info,
|
|
void *message)
|
|
{
|
|
SaErrorT error;
|
|
struct req_evt_channel_open *req;
|
|
struct res_evt_channel_open res;
|
|
struct open_chan_pending *ocp;
|
|
int msec_in_future;
|
|
int ret;
|
|
|
|
req = message;
|
|
|
|
|
|
log_printf(CHAN_OPEN_DEBUG,
|
|
"saEvtChannelOpenAsync (Async Open channel request)\n");
|
|
log_printf(CHAN_OPEN_DEBUG,
|
|
"handle 0x%x, to 0x%x\n",
|
|
req->ico_c_handle,
|
|
req->ico_invocation);
|
|
log_printf(CHAN_OPEN_DEBUG, "flags %x, channel name(%d) %s\n",
|
|
req->ico_open_flag,
|
|
req->ico_channel_name.length,
|
|
req->ico_channel_name.value);
|
|
/*
|
|
* Open the channel.
|
|
*
|
|
*/
|
|
error = evt_open_channel(&req->ico_channel_name, req->ico_open_flag);
|
|
|
|
if (error != SA_AIS_OK) {
|
|
goto open_return;
|
|
}
|
|
|
|
ocp = malloc(sizeof(struct open_chan_pending));
|
|
if (!ocp) {
|
|
error = SA_AIS_ERR_NO_MEMORY;
|
|
goto open_return;
|
|
}
|
|
|
|
ocp->ocp_async = 1;
|
|
ocp->ocp_invocation = req->ico_invocation;
|
|
ocp->ocp_c_handle = req->ico_c_handle;
|
|
ocp->ocp_chan_name = req->ico_channel_name;
|
|
ocp->ocp_open_flag = req->ico_open_flag;
|
|
ocp->ocp_conn_info = conn_info;
|
|
ocp->ocp_timer_handle = 0;
|
|
list_init(&ocp->ocp_entry);
|
|
list_add_tail(&ocp->ocp_entry, &open_pending);
|
|
if (req->ico_timeout != 0) {
|
|
/*
|
|
* Time in nanoseconds - convert to miliseconds
|
|
*/
|
|
msec_in_future = (uint32_t)(req->ico_timeout / 1000000ULL);
|
|
ret = poll_timer_add(aisexec_poll_handle,
|
|
msec_in_future,
|
|
ocp,
|
|
chan_open_timeout,
|
|
&ocp->ocp_timer_handle);
|
|
if (ret != 0) {
|
|
log_printf(LOG_LEVEL_WARNING,
|
|
"Error setting timeout for open channel %s\n",
|
|
req->ico_channel_name.value);
|
|
}
|
|
}
|
|
|
|
open_return:
|
|
res.ico_head.size = sizeof(res);
|
|
res.ico_head.id = MESSAGE_RES_EVT_OPEN_CHANNEL;
|
|
res.ico_head.error = error;
|
|
libais_send_response (conn_info, &res, sizeof(res));
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
* Used by the channel close code and by the implicit close
|
|
* when saEvtFinalize is called with channels open.
|
|
*/
|
|
static SaErrorT
|
|
common_chan_close(struct event_svr_channel_open *eco, struct libevt_ci *esip)
|
|
{
|
|
struct event_svr_channel_subscr *ecs;
|
|
struct list_head *l, *nxt;
|
|
|
|
log_printf(LOG_LEVEL_DEBUG, "Close channel %s flags 0x%02x\n",
|
|
eco->eco_channel->esc_channel_name.value,
|
|
eco->eco_flags);
|
|
|
|
/*
|
|
* Disconnect the channel open structure.
|
|
*
|
|
* Check for subscriptions and deal with them. In this case
|
|
* if there are any, we just implicitly unsubscribe.
|
|
*
|
|
* When We're done with the channel open data then we can
|
|
* remove it's handle (this frees the memory too).
|
|
*
|
|
*/
|
|
list_del(&eco->eco_entry);
|
|
list_del(&eco->eco_instance_entry);
|
|
|
|
for (l = eco->eco_subscr.next; l != &eco->eco_subscr; l = nxt) {
|
|
nxt = l->next;
|
|
ecs = list_entry(l, struct event_svr_channel_subscr, ecs_entry);
|
|
log_printf(LOG_LEVEL_DEBUG, "Unsubscribe ID: %x\n",
|
|
ecs->ecs_sub_id);
|
|
list_del(&ecs->ecs_entry);
|
|
free(ecs);
|
|
/*
|
|
* Purge any pending events associated with this subscription
|
|
* that don't match another subscription.
|
|
*/
|
|
filter_undelivered_events(eco);
|
|
}
|
|
|
|
/*
|
|
* Remove this channel from the retained event's notion
|
|
* of who they have been delivered to.
|
|
*/
|
|
remove_delivered_channel(eco);
|
|
return evt_close_channel(&eco->eco_channel->esc_channel_name,
|
|
eco->eco_channel->esc_unlink_id);
|
|
}
|
|
|
|
/*
|
|
* Handler for saEvtChannelClose
|
|
*/
|
|
static int lib_evt_close_channel(struct conn_info *conn_info, void *message)
|
|
{
|
|
struct req_evt_channel_close *req;
|
|
struct res_evt_channel_close res;
|
|
struct event_svr_channel_open *eco;
|
|
struct libevt_ci *esip = &conn_info->ais_ci.u.libevt_ci;
|
|
SaErrorT error;
|
|
void *ptr;
|
|
|
|
req = message;
|
|
|
|
log_printf(LOG_LEVEL_DEBUG,
|
|
"saEvtChannelClose (Close channel request)\n");
|
|
log_printf(LOG_LEVEL_DEBUG, "handle 0x%x\n", req->icc_channel_handle);
|
|
|
|
/*
|
|
* look up the channel handle
|
|
*/
|
|
error = saHandleInstanceGet(&esip->esi_hdb,
|
|
req->icc_channel_handle, &ptr);
|
|
if (error != SA_AIS_OK) {
|
|
goto chan_close_done;
|
|
}
|
|
eco = ptr;
|
|
|
|
common_chan_close(eco, esip);
|
|
saHandleDestroy(&esip->esi_hdb, req->icc_channel_handle);
|
|
saHandleInstancePut(&esip->esi_hdb, req->icc_channel_handle);
|
|
|
|
chan_close_done:
|
|
res.icc_head.size = sizeof(res);
|
|
res.icc_head.id = MESSAGE_RES_EVT_CLOSE_CHANNEL;
|
|
res.icc_head.error = error;
|
|
libais_send_response (conn_info, &res, sizeof(res));
|
|
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* Handler for saEvtChannelUnlink
|
|
*/
|
|
static int lib_evt_unlink_channel(struct conn_info *conn_info, void *message)
|
|
{
|
|
struct req_evt_channel_unlink *req;
|
|
struct res_evt_channel_unlink res;
|
|
struct iovec chn_iovec;
|
|
struct unlink_chan_pending *ucp;
|
|
struct req_evt_chan_command cpkt;
|
|
SaAisErrorT error = SA_AIS_ERR_LIBRARY;
|
|
|
|
req = message;
|
|
|
|
log_printf(CHAN_UNLINK_DEBUG,
|
|
"saEvtChannelUnlink (Unlink channel request)\n");
|
|
log_printf(CHAN_UNLINK_DEBUG, "Channel Name %s\n",
|
|
req->iuc_channel_name.value);
|
|
|
|
if (!find_channel(&req->iuc_channel_name, EVT_CHAN_ACTIVE)) {
|
|
log_printf(CHAN_UNLINK_DEBUG, "Channel Name doesn't exist\n");
|
|
error = SA_AIS_ERR_NOT_EXIST;
|
|
goto evt_unlink_err;
|
|
}
|
|
|
|
/*
|
|
* Set up the data structure so that the channel op
|
|
* mcast handler can complete the unlink comamnd back to the
|
|
* requestor.
|
|
*/
|
|
ucp = malloc(sizeof(*ucp));
|
|
if (!ucp) {
|
|
log_printf(LOG_LEVEL_ERROR,
|
|
"saEvtChannelUnlink: Memory allocation failure\n");
|
|
error = SA_AIS_ERR_TRY_AGAIN;
|
|
goto evt_unlink_err;
|
|
}
|
|
|
|
ucp->ucp_unlink_id = next_chan_unlink_id();
|
|
ucp->ucp_conn_info = conn_info;
|
|
list_add_tail(&ucp->ucp_entry, &unlink_pending);
|
|
|
|
/*
|
|
* Put together a mcast packet to notify everyone
|
|
* of the channel unlink.
|
|
*/
|
|
memset(&cpkt, 0, sizeof(cpkt));
|
|
cpkt.chc_head.id = MESSAGE_REQ_EXEC_EVT_CHANCMD;
|
|
cpkt.chc_head.size = sizeof(cpkt);
|
|
cpkt.chc_op = EVT_UNLINK_CHAN_OP;
|
|
cpkt.u.chcu.chcu_name = req->iuc_channel_name;
|
|
cpkt.u.chcu.chcu_unlink_id = ucp->ucp_unlink_id;
|
|
chn_iovec.iov_base = &cpkt;
|
|
chn_iovec.iov_len = cpkt.chc_head.size;
|
|
if (totempg_mcast (&chn_iovec, 1, TOTEMPG_AGREED) == 0) {
|
|
return 0;
|
|
}
|
|
|
|
evt_unlink_err:
|
|
res.iuc_head.size = sizeof(res);
|
|
res.iuc_head.id = MESSAGE_RES_EVT_UNLINK_CHANNEL;
|
|
res.iuc_head.error = error;
|
|
libais_send_response (conn_info, &res, sizeof(res));
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* Subscribe to an event channel.
|
|
*
|
|
* - First look up the channel to subscribe.
|
|
* - Make sure that the subscription ID is not already in use.
|
|
* - Fill in the subscription data structures and add them to the channels
|
|
* subscription list.
|
|
* - See if there are any events with retetion times that need to be delivered
|
|
* because of the new subscription.
|
|
*/
|
|
static char *filter_types[] = {
|
|
"INVALID FILTER TYPE",
|
|
"SA_EVT_PREFIX_FILTER",
|
|
"SA_EVT_SUFFIX_FILTER",
|
|
"SA_EVT_EXACT_FILTER",
|
|
"SA_EVT_PASS_ALL_FILTER",
|
|
};
|
|
|
|
/*
|
|
* saEvtEventSubscribe Handler
|
|
*/
|
|
static int lib_evt_event_subscribe(struct conn_info *conn_info, void *message)
|
|
{
|
|
struct req_evt_event_subscribe *req;
|
|
struct res_evt_event_subscribe res;
|
|
SaEvtEventFilterArrayT *filters;
|
|
SaErrorT error = SA_AIS_OK;
|
|
struct event_svr_channel_open *eco;
|
|
struct event_svr_channel_instance *eci;
|
|
struct event_svr_channel_subscr *ecs;
|
|
struct event_data *evt;
|
|
struct libevt_ci *esip = &conn_info->ais_ci.u.libevt_ci;
|
|
struct list_head *l;
|
|
void *ptr;
|
|
int i;
|
|
|
|
req = message;
|
|
|
|
log_printf(LOG_LEVEL_DEBUG,
|
|
"saEvtEventSubscribe (Subscribe request)\n");
|
|
log_printf(LOG_LEVEL_DEBUG, "subscription Id: 0x%x\n",
|
|
req->ics_sub_id);
|
|
|
|
error = evtfilt_to_aisfilt(req, &filters);
|
|
|
|
if (error == SA_AIS_OK) {
|
|
log_printf(LOG_LEVEL_DEBUG, "Subscribe filters count %d\n",
|
|
filters->filtersNumber);
|
|
for (i = 0; i < filters->filtersNumber; i++) {
|
|
log_printf(LOG_LEVEL_DEBUG, "type %s(%d) sz %d, <%s>\n",
|
|
filter_types[filters->filters[i].filterType],
|
|
filters->filters[i].filterType,
|
|
filters->filters[i].filter.patternSize,
|
|
(filters->filters[i].filter.patternSize)
|
|
? (char *)filters->filters[i].filter.pattern
|
|
: "");
|
|
}
|
|
}
|
|
|
|
if (error != SA_AIS_OK) {
|
|
goto subr_done;
|
|
}
|
|
|
|
/*
|
|
* look up the channel handle
|
|
*/
|
|
error = saHandleInstanceGet(&esip->esi_hdb,
|
|
req->ics_channel_handle, &ptr);
|
|
if (error != SA_AIS_OK) {
|
|
goto subr_done;
|
|
}
|
|
eco = ptr;
|
|
|
|
eci = eco->eco_channel;
|
|
|
|
/*
|
|
* See if the id is already being used
|
|
*/
|
|
ecs = find_subscr(eco, req->ics_sub_id);
|
|
if (ecs) {
|
|
error = SA_AIS_ERR_EXIST;
|
|
goto subr_put;
|
|
}
|
|
|
|
ecs = (struct event_svr_channel_subscr *)malloc(sizeof(*ecs));
|
|
if (!ecs) {
|
|
error = SA_AIS_ERR_NO_MEMORY;
|
|
goto subr_put;
|
|
}
|
|
ecs->ecs_filters = filters;
|
|
ecs->ecs_sub_id = req->ics_sub_id;
|
|
list_init(&ecs->ecs_entry);
|
|
list_add(&ecs->ecs_entry, &eco->eco_subscr);
|
|
|
|
|
|
res.ics_head.size = sizeof(res);
|
|
res.ics_head.id = MESSAGE_RES_EVT_SUBSCRIBE;
|
|
res.ics_head.error = error;
|
|
libais_send_response (conn_info, &res, sizeof(res));
|
|
|
|
/*
|
|
* See if an existing event with a retention time
|
|
* needs to be delivered based on this subscription
|
|
*/
|
|
for (l = retained_list.next; l != &retained_list; l = l->next) {
|
|
evt = list_entry(l, struct event_data, ed_retained);
|
|
log_printf(LOG_LEVEL_DEBUG,
|
|
"Checking event ID %llx chanp %p -- sub chanp %p\n",
|
|
evt->ed_event.led_event_id, evt->ed_my_chan, eci);
|
|
if (evt->ed_my_chan == eci) {
|
|
if (evt_already_delivered(evt, eco)) {
|
|
continue;
|
|
}
|
|
if (event_match(evt, ecs) == SA_AIS_OK) {
|
|
log_printf(LOG_LEVEL_DEBUG,
|
|
"deliver event ID: 0x%llx\n",
|
|
evt->ed_event.led_event_id);
|
|
deliver_event(evt, eco, ecs);
|
|
}
|
|
}
|
|
}
|
|
saHandleInstancePut(&esip->esi_hdb, req->ics_channel_handle);
|
|
return 0;
|
|
|
|
subr_put:
|
|
saHandleInstancePut(&esip->esi_hdb, req->ics_channel_handle);
|
|
subr_done:
|
|
res.ics_head.size = sizeof(res);
|
|
res.ics_head.id = MESSAGE_RES_EVT_SUBSCRIBE;
|
|
res.ics_head.error = error;
|
|
libais_send_response (conn_info, &res, sizeof(res));
|
|
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* saEvtEventUnsubscribe Handler
|
|
*/
|
|
static int lib_evt_event_unsubscribe(struct conn_info *conn_info,
|
|
void *message)
|
|
{
|
|
struct req_evt_event_unsubscribe *req;
|
|
struct res_evt_event_unsubscribe res;
|
|
struct event_svr_channel_open *eco;
|
|
struct event_svr_channel_instance *eci;
|
|
struct event_svr_channel_subscr *ecs;
|
|
struct libevt_ci *esip = &conn_info->ais_ci.u.libevt_ci;
|
|
SaErrorT error = SA_AIS_OK;
|
|
void *ptr;
|
|
|
|
req = message;
|
|
|
|
log_printf(LOG_LEVEL_DEBUG,
|
|
"saEvtEventUnsubscribe (Unsubscribe request)\n");
|
|
log_printf(LOG_LEVEL_DEBUG, "subscription Id: 0x%x\n",
|
|
req->icu_sub_id);
|
|
|
|
/*
|
|
* look up the channel handle, get the open channel
|
|
* data.
|
|
*/
|
|
error = saHandleInstanceGet(&esip->esi_hdb,
|
|
req->icu_channel_handle, &ptr);
|
|
if (error != SA_AIS_OK) {
|
|
goto unsubr_done;
|
|
}
|
|
eco = ptr;
|
|
|
|
eci = eco->eco_channel;
|
|
|
|
/*
|
|
* Make sure that the id exists.
|
|
*/
|
|
ecs = find_subscr(eco, req->icu_sub_id);
|
|
if (!ecs) {
|
|
error = SA_AIS_ERR_NOT_EXIST;
|
|
goto unsubr_put;
|
|
}
|
|
|
|
list_del(&ecs->ecs_entry);
|
|
|
|
log_printf(LOG_LEVEL_DEBUG,
|
|
"unsubscribe from channel %s subscription ID 0x%x "
|
|
"with %d filters\n",
|
|
eci->esc_channel_name.value,
|
|
ecs->ecs_sub_id, ecs->ecs_filters->filtersNumber);
|
|
|
|
free_filters(ecs->ecs_filters);
|
|
free(ecs);
|
|
|
|
unsubr_put:
|
|
saHandleInstancePut(&esip->esi_hdb, req->icu_channel_handle);
|
|
unsubr_done:
|
|
res.icu_head.size = sizeof(res);
|
|
res.icu_head.id = MESSAGE_RES_EVT_UNSUBSCRIBE;
|
|
res.icu_head.error = error;
|
|
libais_send_response (conn_info, &res, sizeof(res));
|
|
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* saEvtEventPublish Handler
|
|
*/
|
|
static int lib_evt_event_publish(struct conn_info *conn_info, void *message)
|
|
{
|
|
struct lib_event_data *req;
|
|
struct res_evt_event_publish res;
|
|
struct libevt_ci *esip = &conn_info->ais_ci.u.libevt_ci;
|
|
struct event_svr_channel_open *eco;
|
|
struct event_svr_channel_instance *eci;
|
|
SaEvtEventIdT event_id = 0;
|
|
SaErrorT error = SA_AIS_OK;
|
|
struct iovec pub_iovec;
|
|
void *ptr;
|
|
int result;
|
|
|
|
|
|
req = message;
|
|
|
|
log_printf(LOG_LEVEL_DEBUG,
|
|
"saEvtEventPublish (Publish event request)\n");
|
|
|
|
|
|
/*
|
|
* look up and validate open channel info
|
|
*/
|
|
error = saHandleInstanceGet(&esip->esi_hdb,
|
|
req->led_svr_channel_handle, &ptr);
|
|
if (error != SA_AIS_OK) {
|
|
goto pub_done;
|
|
}
|
|
eco = ptr;
|
|
|
|
eci = eco->eco_channel;
|
|
|
|
/*
|
|
* modify the request structure for sending event data to subscribed
|
|
* processes.
|
|
*/
|
|
get_event_id(&event_id);
|
|
req->led_head.id = MESSAGE_REQ_EXEC_EVT_EVENTDATA;
|
|
req->led_chan_name = eci->esc_channel_name;
|
|
req->led_event_id = event_id;
|
|
req->led_chan_unlink_id = eci->esc_unlink_id;
|
|
|
|
/*
|
|
* Distribute the event.
|
|
* The multicasted event will be picked up and delivered
|
|
* locally by the local network event receiver.
|
|
*/
|
|
pub_iovec.iov_base = req;
|
|
pub_iovec.iov_len = req->led_head.size;
|
|
result = totempg_mcast (&pub_iovec, 1, TOTEMPG_AGREED);
|
|
if (result != 0) {
|
|
error = SA_AIS_ERR_LIBRARY;
|
|
}
|
|
|
|
saHandleInstancePut(&esip->esi_hdb, req->led_svr_channel_handle);
|
|
pub_done:
|
|
res.iep_head.size = sizeof(res);
|
|
res.iep_head.id = MESSAGE_RES_EVT_PUBLISH;
|
|
res.iep_head.error = error;
|
|
res.iep_event_id = event_id;
|
|
libais_send_response (conn_info, &res, sizeof(res));
|
|
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* saEvtEventRetentionTimeClear handler
|
|
*/
|
|
static int lib_evt_event_clear_retentiontime(struct conn_info *conn_info,
|
|
void *message)
|
|
{
|
|
struct req_evt_event_clear_retentiontime *req;
|
|
struct res_evt_event_clear_retentiontime res;
|
|
struct req_evt_chan_command cpkt;
|
|
struct iovec rtn_iovec;
|
|
struct event_data *edp;
|
|
struct list_head *l, *nxt;
|
|
SaErrorT error = SA_AIS_ERR_NOT_EXIST;
|
|
int ret;
|
|
|
|
req = message;
|
|
|
|
log_printf(LOG_LEVEL_DEBUG,
|
|
"saEvtEventRetentionTimeClear (Clear event retentiontime request)\n");
|
|
log_printf(LOG_LEVEL_DEBUG,
|
|
"event ID 0x%llx, chan handle 0x%x\n",
|
|
req->iec_event_id,
|
|
req->iec_channel_handle);
|
|
|
|
/*
|
|
* Make sure that the event really exists first
|
|
*/
|
|
for (l = retained_list.next; l != &retained_list; l = nxt) {
|
|
nxt = l->next;
|
|
edp = list_entry(l, struct event_data, ed_retained);
|
|
if (edp->ed_event.led_event_id == req->iec_event_id) {
|
|
error = SA_AIS_OK;
|
|
break;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Then, if it's OK, send the clear request
|
|
*/
|
|
if (error == SA_AIS_OK) {
|
|
memset(&cpkt, 0, sizeof(cpkt));
|
|
cpkt.chc_head.id = MESSAGE_REQ_EXEC_EVT_CHANCMD;
|
|
cpkt.chc_head.size = sizeof(cpkt);
|
|
cpkt.chc_op = EVT_CLEAR_RET_OP;
|
|
cpkt.u.chc_event_id = req->iec_event_id;
|
|
rtn_iovec.iov_base = &cpkt;
|
|
rtn_iovec.iov_len = cpkt.chc_head.size;
|
|
ret = totempg_mcast (&rtn_iovec, 1, TOTEMPG_AGREED);
|
|
if (ret != 0) {
|
|
error = SA_AIS_ERR_LIBRARY;
|
|
}
|
|
}
|
|
|
|
res.iec_head.size = sizeof(res);
|
|
res.iec_head.id = MESSAGE_RES_EVT_CLEAR_RETENTIONTIME;
|
|
res.iec_head.error = error;
|
|
libais_send_response (conn_info, &res, sizeof(res));
|
|
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* Send requested event data to the application
|
|
*/
|
|
static int lib_evt_event_data_get(struct conn_info *conn_info, void *message)
|
|
{
|
|
struct lib_event_data res;
|
|
struct libevt_ci *esip = &conn_info->ais_ci.u.libevt_ci;
|
|
struct chan_event_list *cel;
|
|
struct event_data *edp;
|
|
int i;
|
|
|
|
|
|
/*
|
|
* Deliver events in publish order within priority
|
|
*/
|
|
for (i = SA_EVT_HIGHEST_PRIORITY; i <= SA_EVT_LOWEST_PRIORITY; i++) {
|
|
if (!list_empty(&esip->esi_events[i])) {
|
|
cel = list_entry(esip->esi_events[i].next, struct chan_event_list,
|
|
cel_entry);
|
|
list_del(&cel->cel_entry);
|
|
list_init(&cel->cel_entry);
|
|
esip->esi_nevents--;
|
|
if (esip->esi_queue_blocked &&
|
|
(esip->esi_nevents < evt_delivery_queue_resume)) {
|
|
esip->esi_queue_blocked = 0;
|
|
log_printf(LOG_LEVEL_DEBUG, "unblock\n");
|
|
}
|
|
edp = cel->cel_event;
|
|
edp->ed_event.led_lib_channel_handle = cel->cel_chan_handle;
|
|
edp->ed_event.led_sub_id = cel->cel_sub_id;
|
|
edp->ed_event.led_head.id = MESSAGE_RES_EVT_EVENT_DATA;
|
|
edp->ed_event.led_head.error = SA_AIS_OK;
|
|
free(cel);
|
|
libais_send_response(conn_info, &edp->ed_event,
|
|
edp->ed_event.led_head.size);
|
|
free_event_data(edp);
|
|
goto data_get_done;
|
|
}
|
|
}
|
|
|
|
res.led_head.size = sizeof(res.led_head);
|
|
res.led_head.id = MESSAGE_RES_EVT_EVENT_DATA;
|
|
res.led_head.error = SA_AIS_ERR_NOT_EXIST;
|
|
libais_send_response(conn_info, &res, res.led_head.size);
|
|
|
|
/*
|
|
* See if there are any events that the app doesn't know about
|
|
* because the notify pipe was full.
|
|
*/
|
|
data_get_done:
|
|
if (esip->esi_nevents) {
|
|
__notify_event(conn_info);
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* Scan the list of channels and remove the specified node.
|
|
*/
|
|
static void remove_chan_open_info(SaClmNodeIdT node_id)
|
|
{
|
|
struct list_head *l, *nxt;
|
|
struct event_svr_channel_instance *eci;
|
|
|
|
for (l = esc_head.next; l != &esc_head; l = nxt) {
|
|
nxt = l->next;
|
|
eci = list_entry(l, struct event_svr_channel_instance, esc_entry);
|
|
remove_open_count(eci, node_id);
|
|
|
|
}
|
|
}
|
|
|
|
|
|
/*
|
|
* Called when there is a configuration change in the cluster.
|
|
* This function looks at any joiners and leavers and updates the evt
|
|
* node list. The node list is used to keep track of event IDs
|
|
* received for each node for the detection of duplicate events.
|
|
*/
|
|
static int evt_conf_change(
|
|
enum totem_configuration_type configuration_type,
|
|
struct in_addr *member_list, int member_list_entries,
|
|
struct in_addr *left_list, int left_list_entries,
|
|
struct in_addr *joined_list, int joined_list_entries,
|
|
struct memb_ring_id *ring_id)
|
|
{
|
|
log_printf(RECOVERY_DEBUG, "Evt conf change %d\n",
|
|
configuration_type);
|
|
log_printf(RECOVERY_DEBUG, "m %d, j %d, l %d\n",
|
|
member_list_entries,
|
|
joined_list_entries,
|
|
left_list_entries);
|
|
|
|
/*
|
|
* Save the various membership lists for later processing by
|
|
* the synchronization functions. The left list is only
|
|
* valid in the transitional configuration, the joined list is
|
|
* only valid in the regular configuration. Other than for the
|
|
* purposes of delivering retained events from merging partitions,
|
|
* we only care about the final membership from the regular
|
|
* configuration.
|
|
*/
|
|
if (configuration_type == TOTEM_CONFIGURATION_TRANSITIONAL) {
|
|
|
|
left_member_count = left_list_entries;
|
|
trans_member_count = member_list_entries;
|
|
|
|
if (left_member_list) {
|
|
free(left_member_list);
|
|
left_member_list = 0;
|
|
}
|
|
if (left_list_entries) {
|
|
left_member_list =
|
|
malloc(sizeof(struct in_addr) * left_list_entries);
|
|
if (!left_member_list) {
|
|
/*
|
|
* ERROR: No recovery.
|
|
*/
|
|
log_printf(LOG_LEVEL_ERROR,
|
|
"Config change left list allocation error\n");
|
|
assert(0);
|
|
}
|
|
memcpy(left_member_list, left_list,
|
|
sizeof(struct in_addr) * left_list_entries);
|
|
}
|
|
|
|
if (trans_member_list) {
|
|
free(trans_member_list);
|
|
trans_member_list = 0;
|
|
}
|
|
if (member_list_entries) {
|
|
trans_member_list =
|
|
malloc(sizeof(struct in_addr) * member_list_entries);
|
|
|
|
if (!trans_member_list) {
|
|
/*
|
|
* ERROR: No recovery.
|
|
*/
|
|
log_printf(LOG_LEVEL_ERROR,
|
|
"Config change transitional member list allocation error\n");
|
|
assert(0);
|
|
}
|
|
memcpy(trans_member_list, member_list,
|
|
sizeof(struct in_addr) * member_list_entries);
|
|
}
|
|
}
|
|
|
|
if (configuration_type == TOTEM_CONFIGURATION_REGULAR) {
|
|
|
|
joined_member_count = joined_list_entries;
|
|
total_member_count = member_list_entries;
|
|
|
|
if (joined_member_list) {
|
|
free(joined_member_list);
|
|
joined_member_list = 0;
|
|
}
|
|
if (joined_list_entries) {
|
|
joined_member_list =
|
|
malloc(sizeof(struct in_addr) * joined_list_entries);
|
|
if (!joined_member_list) {
|
|
/*
|
|
* ERROR: No recovery.
|
|
*/
|
|
log_printf(LOG_LEVEL_ERROR,
|
|
"Config change joined list allocation error\n");
|
|
assert(0);
|
|
}
|
|
memcpy(joined_member_list, joined_list,
|
|
sizeof(struct in_addr) * joined_list_entries);
|
|
}
|
|
|
|
|
|
if (current_member_list) {
|
|
free(current_member_list);
|
|
current_member_list = 0;
|
|
}
|
|
if (member_list_entries) {
|
|
current_member_list =
|
|
malloc(sizeof(struct in_addr) * member_list_entries);
|
|
|
|
if (!current_member_list) {
|
|
/*
|
|
* ERROR: No recovery.
|
|
*/
|
|
log_printf(LOG_LEVEL_ERROR,
|
|
"Config change member list allocation error\n");
|
|
assert(0);
|
|
}
|
|
memcpy(current_member_list, member_list,
|
|
sizeof(struct in_addr) * member_list_entries);
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* saEvtFinalize Handler
|
|
*/
|
|
static int evt_finalize(struct conn_info *conn_info)
|
|
{
|
|
|
|
struct libevt_ci *esip = &conn_info->conn_info_partner->ais_ci.u.libevt_ci;
|
|
struct event_svr_channel_open *eco;
|
|
struct list_head *l, *nxt;
|
|
struct open_chan_pending *ocp;
|
|
struct unlink_chan_pending *ucp;
|
|
|
|
log_printf(LOG_LEVEL_DEBUG, "saEvtFinalize (Event exit request)\n");
|
|
log_printf(LOG_LEVEL_DEBUG, "saEvtFinalize %d evts on list\n",
|
|
esip->esi_nevents);
|
|
|
|
/*
|
|
* Clean up any open channels and associated subscriptions.
|
|
*/
|
|
for (l = esip->esi_open_chans.next; l != &esip->esi_open_chans; l = nxt) {
|
|
nxt = l->next;
|
|
eco = list_entry(l, struct event_svr_channel_open, eco_instance_entry);
|
|
common_chan_close(eco, esip);
|
|
saHandleDestroy(&esip->esi_hdb, eco->eco_my_handle);
|
|
}
|
|
|
|
/*
|
|
* Clean up any pending async operations
|
|
*/
|
|
for (l = open_pending.next; l != &open_pending; l = nxt) {
|
|
nxt = l->next;
|
|
ocp = list_entry(l, struct open_chan_pending, ocp_entry);
|
|
if (esip == &ocp->ocp_conn_info->ais_ci.u.libevt_ci) {
|
|
list_del(&ocp->ocp_entry);
|
|
free(ocp);
|
|
}
|
|
}
|
|
|
|
for (l = unlink_pending.next; l != &unlink_pending; l = nxt) {
|
|
nxt = l->next;
|
|
ucp = list_entry(l, struct unlink_chan_pending, ucp_entry);
|
|
if (esip == &ucp->ucp_conn_info->ais_ci.u.libevt_ci) {
|
|
list_del(&ucp->ucp_entry);
|
|
free(ucp);
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Delete track entry if there is one
|
|
*/
|
|
list_del (&conn_info->conn_info_partner->conn_list);
|
|
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* Called at service start time.
|
|
*/
|
|
static int evt_exec_init(struct openais_config *openais_config)
|
|
{
|
|
log_printf(LOG_LEVEL_DEBUG, "Evt exec init request\n");
|
|
|
|
if (openais_config->evt_delivery_queue_size) {
|
|
evt_delivery_queue_size = openais_config->evt_delivery_queue_size;
|
|
log_printf(LOG_LEVEL_NOTICE,
|
|
"event delivery_queue_size set to %u\n",
|
|
evt_delivery_queue_size);
|
|
}
|
|
|
|
if (openais_config->evt_delivery_queue_resume) {
|
|
evt_delivery_queue_resume = openais_config->evt_delivery_queue_resume;
|
|
log_printf(LOG_LEVEL_NOTICE,
|
|
"event delivery_queue_resume set to %u\n",
|
|
evt_delivery_queue_resume);
|
|
}
|
|
|
|
/*
|
|
* Create an event to be sent when we have to drop messages
|
|
* for an application.
|
|
*/
|
|
dropped_event_size = sizeof(*dropped_event) + sizeof(dropped_pattern);
|
|
dropped_event = malloc(dropped_event_size);
|
|
if (dropped_event == 0) {
|
|
log_printf(LOG_LEVEL_ERROR,
|
|
"Memory Allocation Failure, event service not started\n");
|
|
errno = ENOMEM;
|
|
return -1;
|
|
}
|
|
memset(dropped_event, 0, sizeof(*dropped_event) + sizeof(dropped_pattern));
|
|
dropped_event->ed_ref_count = 1;
|
|
list_init(&dropped_event->ed_retained);
|
|
dropped_event->ed_event.led_head.size =
|
|
sizeof(*dropped_event) + sizeof(dropped_pattern);
|
|
dropped_event->ed_event.led_head.error = SA_AIS_OK;
|
|
dropped_event->ed_event.led_priority = SA_EVT_HIGHEST_PRIORITY;
|
|
dropped_event->ed_event.led_chan_name = lost_chan;
|
|
dropped_event->ed_event.led_publisher_name = dropped_publisher;
|
|
dropped_event->ed_event.led_patterns_number = 1;
|
|
memcpy(&dropped_event->ed_event.led_body[0],
|
|
&dropped_pattern, sizeof(dropped_pattern));
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
try_deliver_event(struct event_data *evt,
|
|
struct event_svr_channel_instance *eci)
|
|
{
|
|
struct list_head *l, *l1;
|
|
struct event_svr_channel_open *eco;
|
|
struct event_svr_channel_subscr *ecs;
|
|
int delivered_event = 0;
|
|
/*
|
|
* Check open channels
|
|
*/
|
|
for (l = eci->esc_open_chans.next; l != &eci->esc_open_chans; l = l->next) {
|
|
eco = list_entry(l, struct event_svr_channel_open, eco_entry);
|
|
/*
|
|
* See if enabled to receive
|
|
*/
|
|
if (!(eco->eco_flags & SA_EVT_CHANNEL_SUBSCRIBER)) {
|
|
continue;
|
|
}
|
|
|
|
/*
|
|
* Check subscriptions
|
|
*/
|
|
for (l1 = eco->eco_subscr.next; l1 != &eco->eco_subscr; l1 = l1->next) {
|
|
ecs = list_entry(l1, struct event_svr_channel_subscr, ecs_entry);
|
|
/*
|
|
* Apply filter rules and deliver if patterns
|
|
* match filters.
|
|
* Only deliver one event per open channel
|
|
*/
|
|
if (event_match(evt, ecs) == SA_AIS_OK) {
|
|
deliver_event(evt, eco, ecs);
|
|
delivered_event++;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
return delivered_event;
|
|
}
|
|
|
|
/*
|
|
* Receive the network event message and distribute it to local subscribers
|
|
*/
|
|
static int evt_remote_evt(void *msg, struct in_addr source_addr,
|
|
int endian_conversion_required)
|
|
{
|
|
/*
|
|
* - retain events that have a retention time
|
|
* - Find assocated channel
|
|
* - Scan list of subscribers
|
|
* - Apply filters
|
|
* - Deliver events that pass the filter test
|
|
*/
|
|
struct lib_event_data *evtpkt = msg;
|
|
struct event_svr_channel_instance *eci;
|
|
struct event_data *evt;
|
|
SaClmClusterNodeT *cn;
|
|
|
|
log_printf(LOG_LEVEL_DEBUG, "Remote event data received from %s\n",
|
|
inet_ntoa(source_addr));
|
|
|
|
/*
|
|
* See where the message came from so that we can set the
|
|
* publishing node id in the message before delivery.
|
|
*/
|
|
cn = clm_get_by_nodeid (source_addr);
|
|
if (!cn) {
|
|
/*
|
|
* Not sure how this can happen...
|
|
*/
|
|
log_printf(LOG_LEVEL_DEBUG, "No cluster node data for %s\n",
|
|
inet_ntoa(source_addr));
|
|
errno = ENXIO;
|
|
return -1;
|
|
}
|
|
log_printf(LOG_LEVEL_DEBUG, "Cluster node ID 0x%x name %s\n",
|
|
cn->nodeId, cn->nodeName.value);
|
|
|
|
if (endian_conversion_required) {
|
|
convert_event(evtpkt);
|
|
}
|
|
|
|
evtpkt->led_publisher_node_id = cn->nodeId;
|
|
evtpkt->led_in_addr = source_addr;
|
|
evtpkt->led_receive_time = clust_time_now();
|
|
|
|
log_printf(CHAN_UNLINK_DEBUG,
|
|
"evt_remote_evt(0): chan %s, id 0x%llx\n",
|
|
evtpkt->led_chan_name.value, evtpkt->led_chan_unlink_id);
|
|
eci = find_channel(&evtpkt->led_chan_name, evtpkt->led_chan_unlink_id);
|
|
/*
|
|
* We may have had some events that were already queued when an
|
|
* unlink happened, if we don't find the channel in the active list
|
|
* look for the last unlinked channel of the same name. If this channel
|
|
* is re-opened the messages will still be routed correctly because new
|
|
* active channel messages will be ordered behind the open.
|
|
*/
|
|
if (!eci && (evtpkt->led_chan_unlink_id == EVT_CHAN_ACTIVE)) {
|
|
log_printf(CHAN_UNLINK_DEBUG,
|
|
"evt_remote_evt(1): chan %s, id 0x%llx\n",
|
|
evtpkt->led_chan_name.value, evtpkt->led_chan_unlink_id);
|
|
eci = find_last_unlinked_channel(&evtpkt->led_chan_name);
|
|
}
|
|
|
|
/*
|
|
* We shouldn't normally see an event for a channel that we
|
|
* don't know about.
|
|
*/
|
|
if (!eci) {
|
|
log_printf(LOG_LEVEL_DEBUG, "Channel %s doesn't exist\n",
|
|
evtpkt->led_chan_name.value);
|
|
return 0;
|
|
}
|
|
|
|
if (check_last_event(evtpkt, source_addr)) {
|
|
return 0;
|
|
}
|
|
|
|
evt = make_local_event(evtpkt, eci);
|
|
if (!evt) {
|
|
log_printf(LOG_LEVEL_WARNING,
|
|
"1Memory allocation error, can't deliver event\n");
|
|
errno = ENOMEM;
|
|
return -1;
|
|
}
|
|
|
|
if (evt->ed_event.led_retention_time) {
|
|
retain_event(evt);
|
|
}
|
|
|
|
try_deliver_event(evt, eci);
|
|
free_event_data(evt);
|
|
|
|
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* Calculate the remaining retention time of a received event during recovery
|
|
*/
|
|
inline SaTimeT calc_retention_time(SaTimeT retention,
|
|
SaTimeT received, SaTimeT now)
|
|
{
|
|
if ((received < now) && ((now - received) < retention)) {
|
|
return retention - (now - received);
|
|
} else {
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Receive a recovery network event message and save it in the retained list
|
|
*/
|
|
static int evt_remote_recovery_evt(void *msg, struct in_addr source_addr,
|
|
int endian_conversion_required)
|
|
{
|
|
/*
|
|
* - calculate remaining retention time
|
|
* - Find assocated channel
|
|
* - Scan list of subscribers
|
|
* - Apply filters
|
|
* - Deliver events that pass the filter test
|
|
*/
|
|
struct lib_event_data *evtpkt = msg;
|
|
struct event_svr_channel_instance *eci;
|
|
struct event_data *evt;
|
|
struct member_node_data *md;
|
|
int num_delivered;
|
|
SaTimeT now;
|
|
|
|
now = clust_time_now();
|
|
|
|
log_printf(RECOVERY_EVENT_DEBUG,
|
|
"Remote recovery event data received from %s\n",
|
|
inet_ntoa(source_addr));
|
|
|
|
if (recovery_phase == evt_recovery_complete) {
|
|
log_printf(RECOVERY_EVENT_DEBUG,
|
|
"Received recovery data, not in recovery mode\n");
|
|
return 0;
|
|
}
|
|
|
|
if (endian_conversion_required) {
|
|
convert_event(evtpkt);
|
|
}
|
|
|
|
log_printf(RECOVERY_EVENT_DEBUG,
|
|
"Processing recovery of retained events\n");
|
|
if (recovery_node) {
|
|
log_printf(RECOVERY_EVENT_DEBUG, "This node is the recovery node\n");
|
|
}
|
|
|
|
log_printf(RECOVERY_EVENT_DEBUG, "(1)EVT ID: %llx, Time: %llx\n",
|
|
evtpkt->led_event_id, evtpkt->led_retention_time);
|
|
/*
|
|
* Calculate remaining retention time
|
|
*/
|
|
evtpkt->led_retention_time = calc_retention_time(
|
|
evtpkt->led_retention_time,
|
|
evtpkt->led_receive_time,
|
|
now);
|
|
|
|
log_printf(RECOVERY_EVENT_DEBUG,
|
|
"(2)EVT ID: %llx, ret: %llx, rec: %llx, now: %llx\n",
|
|
evtpkt->led_event_id,
|
|
evtpkt->led_retention_time, evtpkt->led_receive_time, now);
|
|
|
|
/*
|
|
* If we haven't seen this event yet and it has remaining time, process
|
|
* the event.
|
|
*/
|
|
if (!check_last_event(evtpkt, evtpkt->led_in_addr) &&
|
|
evtpkt->led_retention_time) {
|
|
/*
|
|
* See where the message came from so that we can set the
|
|
* publishing node id in the message before delivery.
|
|
*/
|
|
md = evt_find_node(evtpkt->led_in_addr);
|
|
if (!md) {
|
|
/*
|
|
* Not sure how this can happen
|
|
*/
|
|
log_printf(LOG_LEVEL_NOTICE, "No node for %s\n",
|
|
inet_ntoa(evtpkt->led_in_addr));
|
|
errno = ENXIO;
|
|
return -1;
|
|
}
|
|
log_printf(LOG_LEVEL_DEBUG, "Cluster node ID 0x%x name %s\n",
|
|
md->mn_node_info.nodeId,
|
|
md->mn_node_info.nodeName.value);
|
|
|
|
log_printf(CHAN_UNLINK_DEBUG,
|
|
"evt_recovery_event: chan %s, id 0x%llx\n",
|
|
evtpkt->led_chan_name.value, evtpkt->led_chan_unlink_id);
|
|
eci = find_channel(&evtpkt->led_chan_name, evtpkt->led_chan_unlink_id);
|
|
|
|
/*
|
|
* We shouldn't normally see an event for a channel that we don't
|
|
* know about.
|
|
*/
|
|
if (!eci) {
|
|
log_printf(RECOVERY_EVENT_DEBUG, "Channel %s doesn't exist\n",
|
|
evtpkt->led_chan_name.value);
|
|
return 0;
|
|
}
|
|
|
|
evt = make_local_event(evtpkt, eci);
|
|
if (!evt) {
|
|
log_printf(LOG_LEVEL_WARNING,
|
|
"2Memory allocation error, can't deliver event\n");
|
|
errno = ENOMEM;
|
|
return -1;
|
|
}
|
|
|
|
retain_event(evt);
|
|
num_delivered = try_deliver_event(evt, eci);
|
|
log_printf(RECOVERY_EVENT_DEBUG, "Delivered to %d subscribers\n",
|
|
num_delivered);
|
|
free_event_data(evt);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
/*
|
|
* Timeout handler for event channel open.
|
|
*/
|
|
static void chan_open_timeout(void *data)
|
|
{
|
|
struct open_chan_pending *ocp = (struct open_chan_pending *)data;
|
|
struct res_evt_channel_open res;
|
|
|
|
res.ico_head.size = sizeof(res);
|
|
res.ico_head.id = MESSAGE_RES_EVT_OPEN_CHANNEL;
|
|
res.ico_head.error = SA_AIS_ERR_TIMEOUT;
|
|
libais_send_response (ocp->ocp_conn_info, &res, sizeof(res));
|
|
list_del(&ocp->ocp_entry);
|
|
free(ocp);
|
|
}
|
|
|
|
/*
|
|
* Called by the channel open exec handler to finish the open and
|
|
* respond to the application
|
|
*/
|
|
static void evt_chan_open_finish(struct open_chan_pending *ocp,
|
|
struct event_svr_channel_instance *eci)
|
|
{
|
|
uint32_t handle;
|
|
struct event_svr_channel_open *eco;
|
|
SaErrorT error;
|
|
struct libevt_ci *esip = &ocp->ocp_conn_info->ais_ci.u.libevt_ci;
|
|
int ret = 0;
|
|
void *ptr;
|
|
|
|
log_printf(CHAN_OPEN_DEBUG, "Open channel finish %s\n",
|
|
getSaNameT(&ocp->ocp_chan_name));
|
|
if (ocp->ocp_timer_handle) {
|
|
ret = poll_timer_delete(aisexec_poll_handle, ocp->ocp_timer_handle);
|
|
if (ret != 0 ) {
|
|
log_printf(LOG_LEVEL_WARNING,
|
|
"Error clearing timeout for open channel of %s\n",
|
|
getSaNameT(&ocp->ocp_chan_name));
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Create a handle to give back to the caller to associate
|
|
* with this channel open instance.
|
|
*/
|
|
error = saHandleCreate(&esip->esi_hdb, sizeof(*eco), &handle);
|
|
if (error != SA_AIS_OK) {
|
|
goto open_return;
|
|
}
|
|
error = saHandleInstanceGet(&esip->esi_hdb, handle, &ptr);
|
|
if (error != SA_AIS_OK) {
|
|
goto open_return;
|
|
}
|
|
eco = ptr;
|
|
|
|
/*
|
|
* Initailize and link into the global channel structure.
|
|
*/
|
|
list_init(&eco->eco_subscr);
|
|
list_init(&eco->eco_entry);
|
|
list_init(&eco->eco_instance_entry);
|
|
eco->eco_flags = ocp->ocp_open_flag;
|
|
eco->eco_channel = eci;
|
|
eco->eco_lib_handle = ocp->ocp_c_handle;
|
|
eco->eco_my_handle = handle;
|
|
eco->eco_conn_info = ocp->ocp_conn_info;
|
|
list_add_tail(&eco->eco_entry, &eci->esc_open_chans);
|
|
list_add_tail(&eco->eco_instance_entry, &esip->esi_open_chans);
|
|
|
|
/*
|
|
* respond back with a handle to access this channel
|
|
* open instance for later subscriptions, etc.
|
|
*/
|
|
saHandleInstancePut(&esip->esi_hdb, handle);
|
|
|
|
open_return:
|
|
log_printf(CHAN_OPEN_DEBUG, "Open channel finish %s send response %d\n",
|
|
getSaNameT(&ocp->ocp_chan_name),
|
|
error);
|
|
if (ocp->ocp_async) {
|
|
struct res_evt_open_chan_async resa;
|
|
resa.ica_head.size = sizeof(resa);
|
|
resa.ica_head.id = MESSAGE_RES_EVT_CHAN_OPEN_CALLBACK;
|
|
resa.ica_head.error = error;
|
|
resa.ica_channel_handle = handle;
|
|
resa.ica_c_handle = ocp->ocp_c_handle;
|
|
resa.ica_invocation = ocp->ocp_invocation;
|
|
libais_send_response (ocp->ocp_conn_info->conn_info_partner,
|
|
&resa, sizeof(resa));
|
|
} else {
|
|
struct res_evt_channel_open res;
|
|
res.ico_head.size = sizeof(res);
|
|
res.ico_head.id = MESSAGE_RES_EVT_OPEN_CHANNEL;
|
|
res.ico_head.error = error;
|
|
res.ico_channel_handle = handle;
|
|
libais_send_response (ocp->ocp_conn_info, &res, sizeof(res));
|
|
}
|
|
|
|
if (ret == 0) {
|
|
list_del(&ocp->ocp_entry);
|
|
free(ocp);
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Called by the channel unlink exec handler to
|
|
* respond to the application.
|
|
*/
|
|
static void evt_chan_unlink_finish(struct unlink_chan_pending *ucp)
|
|
{
|
|
struct res_evt_channel_unlink res;
|
|
|
|
log_printf(CHAN_UNLINK_DEBUG, "Unlink channel finish ID 0x%llx\n",
|
|
ucp->ucp_unlink_id);
|
|
|
|
res.iuc_head.size = sizeof(res);
|
|
res.iuc_head.id = MESSAGE_RES_EVT_UNLINK_CHANNEL;
|
|
res.iuc_head.error = SA_AIS_OK;
|
|
libais_send_response (ucp->ucp_conn_info, &res, sizeof(res));
|
|
|
|
list_del(&ucp->ucp_entry);
|
|
free(ucp);
|
|
}
|
|
|
|
/*
|
|
* Take the channel command data and swap the elements so they match
|
|
* our architectures word order.
|
|
*/
|
|
static void
|
|
convert_chan_packet(struct req_evt_chan_command *cpkt)
|
|
{
|
|
/*
|
|
* converted in the main deliver_fn:
|
|
* led_head.id, led_head.size.
|
|
*
|
|
*/
|
|
|
|
cpkt->chc_op = swab32(cpkt->chc_op);
|
|
|
|
/*
|
|
* Which elements of the packet that are converted depend
|
|
* on the operation.
|
|
*/
|
|
switch (cpkt->chc_op) {
|
|
|
|
case EVT_OPEN_CHAN_OP:
|
|
cpkt->u.chc_chan.length = swab16(cpkt->u.chc_chan.length);
|
|
break;
|
|
|
|
case EVT_UNLINK_CHAN_OP:
|
|
case EVT_CLOSE_CHAN_OP:
|
|
cpkt->u.chcu.chcu_name.length = swab16(cpkt->u.chcu.chcu_name.length);
|
|
cpkt->u.chcu.chcu_unlink_id = swab64(cpkt->u.chcu.chcu_unlink_id);
|
|
break;
|
|
|
|
case EVT_CLEAR_RET_OP:
|
|
cpkt->u.chc_event_id = swab64(cpkt->u.chc_event_id);
|
|
break;
|
|
|
|
case EVT_SET_ID_OP:
|
|
cpkt->u.chc_set_id.chc_addr.s_addr =
|
|
swab32(cpkt->u.chc_set_id.chc_addr.s_addr);
|
|
cpkt->u.chc_set_id.chc_last_id = swab64(cpkt->u.chc_set_id.chc_last_id);
|
|
break;
|
|
|
|
case EVT_OPEN_COUNT:
|
|
cpkt->u.chc_set_opens.chc_chan_name.length =
|
|
swab16(cpkt->u.chc_set_opens.chc_chan_name.length);
|
|
cpkt->u.chc_set_opens.chc_open_count =
|
|
swab32(cpkt->u.chc_set_opens.chc_open_count);
|
|
break;
|
|
|
|
/*
|
|
* No data assocaited with these ops.
|
|
*/
|
|
case EVT_CONF_DONE:
|
|
case EVT_OPEN_COUNT_DONE:
|
|
break;
|
|
|
|
/*
|
|
* Make sure that this function is updated when new ops are added.
|
|
*/
|
|
default:
|
|
assert(0);
|
|
}
|
|
}
|
|
|
|
|
|
/*
|
|
* Receive and process remote event operations.
|
|
* Used to communicate channel opens/closes, clear retention time,
|
|
* config change updates...
|
|
*/
|
|
static int evt_remote_chan_op(void *msg, struct in_addr source_addr,
|
|
int endian_conversion_required)
|
|
{
|
|
struct req_evt_chan_command *cpkt = msg;
|
|
struct in_addr local_node = {SA_CLM_LOCAL_NODE_ID};
|
|
SaClmClusterNodeT *cn, *my_node;
|
|
struct member_node_data *mn;
|
|
struct event_svr_channel_instance *eci;
|
|
|
|
if (endian_conversion_required) {
|
|
convert_chan_packet(cpkt);
|
|
}
|
|
|
|
log_printf(REMOTE_OP_DEBUG, "Remote channel operation request\n");
|
|
my_node = clm_get_by_nodeid(local_node);
|
|
log_printf(REMOTE_OP_DEBUG, "my node ID: 0x%x\n", my_node->nodeId);
|
|
|
|
mn = evt_find_node(source_addr);
|
|
if (mn == NULL) {
|
|
cn = clm_get_by_nodeid(source_addr);
|
|
if (cn == NULL) {
|
|
log_printf(LOG_LEVEL_WARNING,
|
|
"Evt remote channel op: Node data for addr %s is NULL\n",
|
|
inet_ntoa(source_addr));
|
|
return 0;
|
|
} else {
|
|
evt_add_node(source_addr, cn);
|
|
mn = evt_find_node(source_addr);
|
|
}
|
|
}
|
|
|
|
switch (cpkt->chc_op) {
|
|
/*
|
|
* Open channel remote command. The open channel request is done
|
|
* in two steps. When an pplication tries to open, we send an open
|
|
* channel message to the other nodes. When we receive an open channel
|
|
* message, we may create the channel structure if it doesn't exist
|
|
* and also complete applicaiton open requests for the specified
|
|
* channel. We keep a counter of total opens for the given channel and
|
|
* later when it has been completely closed (everywhere in the cluster)
|
|
* we will free up the assocated channel data.
|
|
*/
|
|
case EVT_OPEN_CHAN_OP: {
|
|
struct open_chan_pending *ocp;
|
|
struct list_head *l, *nxt;
|
|
|
|
log_printf(CHAN_OPEN_DEBUG, "Opening channel %s for node 0x%x\n",
|
|
cpkt->u.chc_chan.value, mn->mn_node_info.nodeId);
|
|
eci = find_channel(&cpkt->u.chc_chan, EVT_CHAN_ACTIVE);
|
|
|
|
if (!eci) {
|
|
eci = create_channel(&cpkt->u.chc_chan);
|
|
}
|
|
if (!eci) {
|
|
log_printf(LOG_LEVEL_WARNING, "Could not create channel %s\n",
|
|
getSaNameT(&cpkt->u.chc_chan));
|
|
break;
|
|
}
|
|
|
|
inc_open_count(eci, mn->mn_node_info.nodeId);
|
|
|
|
if (mn->mn_node_info.nodeId == my_node->nodeId) {
|
|
/*
|
|
* Complete one of our pending open requests
|
|
*/
|
|
for (l = open_pending.next; l != &open_pending; l = nxt) {
|
|
nxt = l->next;
|
|
ocp = list_entry(l, struct open_chan_pending, ocp_entry);
|
|
log_printf(CHAN_OPEN_DEBUG,
|
|
"Compare channel %s %s\n", ocp->ocp_chan_name.value,
|
|
eci->esc_channel_name.value);
|
|
if (name_match(&ocp->ocp_chan_name, &eci->esc_channel_name)) {
|
|
evt_chan_open_finish(ocp, eci);
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
log_printf(CHAN_OPEN_DEBUG,
|
|
"Open channel %s t %d, l %d, r %d\n",
|
|
getSaNameT(&eci->esc_channel_name),
|
|
eci->esc_total_opens, eci->esc_local_opens,
|
|
eci->esc_retained_count);
|
|
break;
|
|
}
|
|
|
|
/*
|
|
* Handle a channel close. We'll decrement the global open counter and
|
|
* free up channel associated data when all instances are closed.
|
|
*/
|
|
case EVT_CLOSE_CHAN_OP:
|
|
log_printf(LOG_LEVEL_DEBUG, "Closing channel %s for node 0x%x\n",
|
|
cpkt->u.chcu.chcu_name.value, mn->mn_node_info.nodeId);
|
|
eci = find_channel(&cpkt->u.chcu.chcu_name, cpkt->u.chcu.chcu_unlink_id);
|
|
if (!eci) {
|
|
log_printf(LOG_LEVEL_NOTICE,
|
|
"Channel close request for %s not found\n",
|
|
cpkt->u.chcu.chcu_name.value);
|
|
break;
|
|
}
|
|
|
|
/*
|
|
* if last instance, we can free up assocated data.
|
|
*/
|
|
dec_open_count(eci, mn->mn_node_info.nodeId);
|
|
log_printf(LOG_LEVEL_DEBUG,
|
|
"Close channel %s t %d, l %d, r %d\n",
|
|
eci->esc_channel_name.value,
|
|
eci->esc_total_opens, eci->esc_local_opens,
|
|
eci->esc_retained_count);
|
|
delete_channel(eci);
|
|
break;
|
|
|
|
/*
|
|
* Handle a request for channel unlink saEvtChannelUnlink().
|
|
* We'll look up the channel and mark it as unlinked. Respond to
|
|
* local library unlink commands.
|
|
*/
|
|
case EVT_UNLINK_CHAN_OP: {
|
|
struct unlink_chan_pending *ucp;
|
|
struct list_head *l, *nxt;
|
|
|
|
log_printf(CHAN_UNLINK_DEBUG,
|
|
"Unlink request channel %s unlink ID 0x%llx from node 0x%x\n",
|
|
cpkt->u.chcu.chcu_name.value,
|
|
cpkt->u.chcu.chcu_unlink_id,
|
|
mn->mn_node_info.nodeId);
|
|
|
|
|
|
/*
|
|
* look up the channel name and get its assoicated data.
|
|
*/
|
|
eci = find_channel(&cpkt->u.chcu.chcu_name,
|
|
EVT_CHAN_ACTIVE);
|
|
if (!eci) {
|
|
log_printf(LOG_LEVEL_NOTICE,
|
|
"Channel unlink request for %s not found\n",
|
|
cpkt->u.chcu.chcu_name);
|
|
break;
|
|
}
|
|
|
|
/*
|
|
* Mark channel as unlinked.
|
|
*/
|
|
unlink_channel(eci, cpkt->u.chcu.chcu_unlink_id);
|
|
|
|
/*
|
|
* respond only to local library requests.
|
|
*/
|
|
if (mn->mn_node_info.nodeId == my_node->nodeId) {
|
|
/*
|
|
* Complete one of our pending unlink requests
|
|
*/
|
|
for (l = unlink_pending.next; l != &unlink_pending; l = nxt) {
|
|
nxt = l->next;
|
|
ucp = list_entry(l, struct unlink_chan_pending, ucp_entry);
|
|
log_printf(CHAN_UNLINK_DEBUG,
|
|
"Compare channel id 0x%llx 0x%llx\n",
|
|
ucp->ucp_unlink_id, eci->esc_unlink_id);
|
|
if (ucp->ucp_unlink_id == eci->esc_unlink_id) {
|
|
evt_chan_unlink_finish(ucp);
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
break;
|
|
}
|
|
|
|
|
|
/*
|
|
* saEvtClearRetentiotime handler.
|
|
*/
|
|
case EVT_CLEAR_RET_OP:
|
|
log_printf(LOG_LEVEL_DEBUG, "Clear retention time request %llx\n",
|
|
cpkt->u.chc_event_id);
|
|
clear_retention_time(cpkt->u.chc_event_id);
|
|
break;
|
|
|
|
/*
|
|
* Set our next event ID based on the largest event ID seen
|
|
* by others in the cluster. This way, if we've left and re-joined, we'll
|
|
* start using an event ID that is unique.
|
|
*/
|
|
case EVT_SET_ID_OP: {
|
|
struct in_addr my_addr;
|
|
int log_level = LOG_LEVEL_DEBUG;
|
|
my_addr.s_addr = my_node->nodeId;
|
|
if (cpkt->u.chc_set_id.chc_addr.s_addr == my_addr.s_addr) {
|
|
log_level = RECOVERY_DEBUG;
|
|
}
|
|
log_printf(log_level,
|
|
"Received Set event ID OP from %s to %llx for %x my addr %x base %llx\n",
|
|
inet_ntoa(source_addr),
|
|
cpkt->u.chc_set_id.chc_last_id,
|
|
cpkt->u.chc_set_id.chc_addr.s_addr,
|
|
my_addr.s_addr,
|
|
base_id);
|
|
if (cpkt->u.chc_set_id.chc_addr.s_addr == my_addr.s_addr) {
|
|
if (cpkt->u.chc_set_id.chc_last_id >= base_id) {
|
|
log_printf(RECOVERY_DEBUG,
|
|
"Set event ID from %s to %llx\n",
|
|
inet_ntoa(source_addr), cpkt->u.chc_set_id.chc_last_id);
|
|
base_id = cpkt->u.chc_set_id.chc_last_id + 1;
|
|
}
|
|
}
|
|
break;
|
|
}
|
|
|
|
/*
|
|
* Receive the open count for a particular channel during recovery.
|
|
* This insures that everyone has the same notion of who has a channel
|
|
* open so that it can be removed when no one else has it open anymore.
|
|
*/
|
|
case EVT_OPEN_COUNT:
|
|
if (recovery_phase == evt_recovery_complete) {
|
|
log_printf(LOG_LEVEL_ERROR,
|
|
"Evt open count msg from %s, but not in membership change\n",
|
|
inet_ntoa(source_addr));
|
|
}
|
|
|
|
/*
|
|
* Zero out all open counts because we're setting then based
|
|
* on each nodes local counts.
|
|
*/
|
|
if (!processed_open_counts) {
|
|
zero_chan_open_counts();
|
|
processed_open_counts = 1;
|
|
}
|
|
log_printf(RECOVERY_DEBUG,
|
|
"Open channel count %s is %d for node 0x%x\n",
|
|
cpkt->u.chc_set_opens.chc_chan_name.value,
|
|
cpkt->u.chc_set_opens.chc_open_count,
|
|
mn->mn_node_info.nodeId);
|
|
|
|
eci = find_channel(&cpkt->u.chc_set_opens.chc_chan_name,
|
|
EVT_CHAN_ACTIVE);
|
|
if (!eci) {
|
|
eci = create_channel(&cpkt->u.chc_set_opens.chc_chan_name);
|
|
}
|
|
if (!eci) {
|
|
log_printf(LOG_LEVEL_WARNING, "Could not create channel %s\n",
|
|
getSaNameT(&cpkt->u.chc_set_opens.chc_chan_name));
|
|
break;
|
|
}
|
|
if (set_open_count(eci, mn->mn_node_info.nodeId,
|
|
cpkt->u.chc_set_opens.chc_open_count)) {
|
|
log_printf(LOG_LEVEL_ERROR,
|
|
"Error setting Open channel count %s for node 0x%x\n",
|
|
cpkt->u.chc_set_opens.chc_chan_name.value,
|
|
mn->mn_node_info.nodeId);
|
|
}
|
|
break;
|
|
|
|
/*
|
|
* Once we get all the messages from
|
|
* the current membership, determine who delivers any retained events.
|
|
*/
|
|
case EVT_OPEN_COUNT_DONE: {
|
|
if (recovery_phase == evt_recovery_complete) {
|
|
log_printf(LOG_LEVEL_ERROR,
|
|
"Evt config msg from %s, but not in membership change\n",
|
|
inet_ntoa(source_addr));
|
|
}
|
|
log_printf(RECOVERY_DEBUG,
|
|
"Receive EVT_CONF_CHANGE_DONE from %s members %d checked in %d\n",
|
|
inet_ntoa(source_addr), total_member_count, checked_in+1);
|
|
if (!mn) {
|
|
log_printf(RECOVERY_DEBUG,
|
|
"NO NODE DATA AVAILABLE FOR %s\n",
|
|
inet_ntoa(source_addr));
|
|
}
|
|
|
|
if (++checked_in == total_member_count) {
|
|
/*
|
|
* We're all here, now figure out who should send the
|
|
* retained events.
|
|
*/
|
|
mn = oldest_node();
|
|
if (mn && mn->mn_node_info.nodeId == my_node_id) {
|
|
log_printf(RECOVERY_DEBUG,
|
|
"I am oldest in my transitional config\n");
|
|
recovery_node = 1;
|
|
recovery_phase = evt_send_retained_events;
|
|
} else {
|
|
recovery_phase = evt_send_retained_events_done;
|
|
recovery_node = 0;
|
|
}
|
|
checked_in = 0;
|
|
}
|
|
break;
|
|
}
|
|
|
|
/*
|
|
* Count up the nodes again, when all the nodes have responded, we've
|
|
* distributed the retained events and we're done with recovery and can
|
|
* continue operations.
|
|
*/
|
|
case EVT_CONF_DONE: {
|
|
log_printf(RECOVERY_DEBUG,
|
|
"Receive EVT_CONF_DONE from %s, members %d checked in %d\n",
|
|
inet_ntoa(source_addr),
|
|
total_member_count, checked_in+1);
|
|
if (++checked_in == total_member_count) {
|
|
/*
|
|
* All recovery complete, carry on.
|
|
*/
|
|
recovery_phase = evt_recovery_complete;
|
|
#ifdef DUMP_CHAN_INFO
|
|
dump_all_chans();
|
|
#endif
|
|
}
|
|
|
|
break;
|
|
}
|
|
|
|
default:
|
|
log_printf(LOG_LEVEL_NOTICE, "Invalid channel operation %d\n",
|
|
cpkt->chc_op);
|
|
break;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* Set up initial conditions for processing event service
|
|
* recovery.
|
|
*/
|
|
static void evt_sync_init(void)
|
|
{
|
|
SaClmClusterNodeT *cn;
|
|
struct member_node_data *md;
|
|
struct in_addr my_node = {SA_CLM_LOCAL_NODE_ID};
|
|
int left_list_entries = left_member_count;
|
|
struct in_addr *left_list = left_member_list;
|
|
|
|
log_printf(RECOVERY_DEBUG, "Evt synchronize initialization\n");
|
|
|
|
/*
|
|
* Set the base event id
|
|
*/
|
|
if (!my_node_id) {
|
|
cn = clm_get_by_nodeid(my_node);
|
|
log_printf(RECOVERY_DEBUG, "My node ID 0x%x\n", cn->nodeId);
|
|
my_node_id = cn->nodeId;
|
|
set_event_id(my_node_id);
|
|
}
|
|
|
|
/*
|
|
* account for nodes that left the membership
|
|
*/
|
|
while (left_list_entries--) {
|
|
md = evt_find_node(*left_list);
|
|
if (md == 0) {
|
|
log_printf(LOG_LEVEL_WARNING,
|
|
"Can't find cluster node at %s\n",
|
|
inet_ntoa(left_list[0]));
|
|
/*
|
|
* Mark this one as down.
|
|
*/
|
|
} else {
|
|
log_printf(RECOVERY_DEBUG, "cluster node at %s down\n",
|
|
inet_ntoa(left_list[0]));
|
|
md->mn_started = 0;
|
|
remove_chan_open_info(md->mn_node_info.nodeId);
|
|
}
|
|
left_list++;
|
|
}
|
|
|
|
/*
|
|
* set up for recovery processing, first phase:
|
|
*/
|
|
recovery_phase = evt_send_event_id;
|
|
|
|
/*
|
|
* List used to distribute last know event IDs.
|
|
*/
|
|
add_list = current_member_list;
|
|
add_count = total_member_count;
|
|
processed_open_counts = 0;
|
|
|
|
/*
|
|
* List used for distributing open channel counts
|
|
*/
|
|
next_chan = esc_head.next;
|
|
|
|
/*
|
|
* List used for distributing retained events
|
|
*/
|
|
next_retained = retained_list.next;
|
|
|
|
/*
|
|
* Member check in counts for open channel counts and
|
|
* retained events.
|
|
*/
|
|
checked_in = 0;
|
|
}
|
|
|
|
/*
|
|
* Handle event service recovery. It passes through a number of states to
|
|
* finish the recovery.
|
|
*
|
|
* First, the node broadcasts the highest event ID that it has seen for any
|
|
* joinig node. This helps to make sure that rejoining nodes don't re-use
|
|
* event IDs that have already been seen.
|
|
*
|
|
* Next, The node broadcasts its open channel information to the other nodes.
|
|
* This makes sure that any joining nodes have complete data on any channels
|
|
* already open.
|
|
*
|
|
* Once done sending open channel information the node waits in a state for
|
|
* the rest of the nodes to finish sending their data. When the last node
|
|
* has checked in, then the remote channel operation handler selects the next
|
|
* state which is evt_send_retained_events if this is the oldest node in the
|
|
* cluster, or otherwise to evt_wait_send_retained_events to wait for the
|
|
* retained events to be sent. When the retained events have been sent, the
|
|
* state is changed to evt_recovery_complete and this function exits with
|
|
* zero to inidicate that recovery is done.
|
|
*/
|
|
static int evt_sync_process(void)
|
|
{
|
|
|
|
log_printf(RECOVERY_DEBUG, "Process Evt synchronization \n");
|
|
|
|
switch (recovery_phase) {
|
|
|
|
/*
|
|
* Send last know event ID to joining nodes to prevent duplicate
|
|
* event IDs.
|
|
*/
|
|
case evt_send_event_id:
|
|
{
|
|
struct member_node_data *md;
|
|
SaClmClusterNodeT *cn;
|
|
struct req_evt_chan_command cpkt;
|
|
struct iovec chn_iovec;
|
|
int res;
|
|
|
|
log_printf(RECOVERY_DEBUG, "Send max event ID updates\n");
|
|
while (add_count) {
|
|
/*
|
|
* If we've seen this node before, send out the last event ID
|
|
* that we've seen from him. He will set his base event ID to
|
|
* the highest one seen.
|
|
*/
|
|
md = evt_find_node(*add_list);
|
|
if (md != NULL) {
|
|
log_printf(RECOVERY_DEBUG,
|
|
"Send set evt ID %llx to %s\n",
|
|
md->mn_last_evt_id, inet_ntoa(*add_list));
|
|
md->mn_started = 1;
|
|
memset(&cpkt, 0, sizeof(cpkt));
|
|
cpkt.chc_head.id = MESSAGE_REQ_EXEC_EVT_CHANCMD;
|
|
cpkt.chc_head.size = sizeof(cpkt);
|
|
cpkt.chc_op = EVT_SET_ID_OP;
|
|
cpkt.u.chc_set_id.chc_addr = *add_list;
|
|
cpkt.u.chc_set_id.chc_last_id =
|
|
md->mn_last_evt_id & BASE_ID_MASK;
|
|
chn_iovec.iov_base = &cpkt;
|
|
chn_iovec.iov_len = cpkt.chc_head.size;
|
|
res = totempg_mcast (&chn_iovec, 1,TOTEMPG_AGREED);
|
|
if (res != 0) {
|
|
log_printf(RECOVERY_DEBUG,
|
|
"Unable to send event id to %s\n",
|
|
inet_ntoa(*add_list));
|
|
/*
|
|
* We'll try again later.
|
|
*/
|
|
return 1;
|
|
}
|
|
|
|
} else {
|
|
/*
|
|
* Not seen before, add it to our list of nodes.
|
|
*/
|
|
cn = clm_get_by_nodeid(*add_list);
|
|
if (!cn) {
|
|
/*
|
|
* Error: shouldn't happen
|
|
*/
|
|
log_printf(LOG_LEVEL_ERROR,
|
|
"recovery error node: %s not found\n",
|
|
inet_ntoa(*add_list));
|
|
assert(0);
|
|
} else {
|
|
evt_add_node(*add_list, cn);
|
|
}
|
|
}
|
|
|
|
add_list++;
|
|
add_count--;
|
|
}
|
|
recovery_phase = evt_send_open_count;
|
|
return 1;
|
|
}
|
|
|
|
/*
|
|
* Send channel open counts so all members have the same channel open
|
|
* counts.
|
|
*/
|
|
case evt_send_open_count:
|
|
{
|
|
struct req_evt_chan_command cpkt;
|
|
struct iovec chn_iovec;
|
|
struct event_svr_channel_instance *eci;
|
|
int res;
|
|
|
|
log_printf(RECOVERY_DEBUG, "Send open count updates\n");
|
|
/*
|
|
* Process messages. When we're done, send the done message
|
|
* to the nodes.
|
|
*/
|
|
memset(&cpkt, 0, sizeof(cpkt));
|
|
for (;next_chan != &esc_head;
|
|
next_chan = next_chan->next) {
|
|
log_printf(RECOVERY_DEBUG, "Sending next open count\n");
|
|
eci = list_entry(next_chan, struct event_svr_channel_instance,
|
|
esc_entry);
|
|
cpkt.chc_head.id = MESSAGE_REQ_EXEC_EVT_CHANCMD;
|
|
cpkt.chc_head.size = sizeof(cpkt);
|
|
cpkt.chc_op = EVT_OPEN_COUNT;
|
|
cpkt.u.chc_set_opens.chc_chan_name = eci->esc_channel_name;
|
|
cpkt.u.chc_set_opens.chc_open_count = eci->esc_local_opens;
|
|
chn_iovec.iov_base = &cpkt;
|
|
chn_iovec.iov_len = cpkt.chc_head.size;
|
|
res = totempg_mcast(&chn_iovec, 1,TOTEMPG_AGREED);
|
|
|
|
if (res != 0) {
|
|
/*
|
|
* Try again later.
|
|
*/
|
|
return 1;
|
|
}
|
|
}
|
|
memset(&cpkt, 0, sizeof(cpkt));
|
|
cpkt.chc_head.id = MESSAGE_REQ_EXEC_EVT_CHANCMD;
|
|
cpkt.chc_head.size = sizeof(cpkt);
|
|
cpkt.chc_op = EVT_OPEN_COUNT_DONE;
|
|
chn_iovec.iov_base = &cpkt;
|
|
chn_iovec.iov_len = cpkt.chc_head.size;
|
|
res = totempg_mcast (&chn_iovec, 1,TOTEMPG_AGREED);
|
|
if (res != 0) {
|
|
/*
|
|
* Try again later.
|
|
*/
|
|
return 1;
|
|
}
|
|
log_printf(RECOVERY_DEBUG, "DONE Sending open counts\n");
|
|
|
|
recovery_phase = evt_wait_open_count_done;
|
|
return 1;
|
|
}
|
|
|
|
/*
|
|
* Wait for all nodes to finish sending open updates before proceding.
|
|
* the EVT_OPEN_COUNT_DONE handler will set the state to
|
|
* evt_send_retained_events to get us out of this.
|
|
*/
|
|
case evt_wait_open_count_done:
|
|
{
|
|
log_printf(RECOVERY_DEBUG, "Wait for open count done\n");
|
|
return 1;
|
|
}
|
|
|
|
/*
|
|
* If I'm the oldest node, send out retained events so that new nodes
|
|
* have all the information.
|
|
*/
|
|
case evt_send_retained_events:
|
|
{
|
|
struct iovec chn_iovec;
|
|
struct event_data *evt;
|
|
int res;
|
|
|
|
log_printf(RECOVERY_DEBUG, "Send retained event updates\n");
|
|
|
|
/*
|
|
* Process messages. When we're done, send the done message
|
|
* to the nodes.
|
|
*/
|
|
for (;next_retained != &retained_list;
|
|
next_retained = next_retained->next) {
|
|
log_printf(LOG_LEVEL_DEBUG, "Sending next retained event\n");
|
|
evt = list_entry(next_retained, struct event_data, ed_retained);
|
|
evt->ed_event.led_head.id = MESSAGE_REQ_EXEC_EVT_RECOVERY_EVENTDATA;
|
|
chn_iovec.iov_base = &evt->ed_event;
|
|
chn_iovec.iov_len = evt->ed_event.led_head.size;
|
|
res = totempg_mcast(&chn_iovec, 1, TOTEMPG_AGREED);
|
|
|
|
if (res != 0) {
|
|
/*
|
|
* Try again later.
|
|
*/
|
|
return -1;
|
|
}
|
|
}
|
|
|
|
recovery_phase = evt_send_retained_events_done;
|
|
return 1;
|
|
}
|
|
|
|
case evt_send_retained_events_done:
|
|
{
|
|
struct req_evt_chan_command cpkt;
|
|
struct iovec chn_iovec;
|
|
int res;
|
|
|
|
log_printf(RECOVERY_DEBUG, "DONE Sending retained events\n");
|
|
memset(&cpkt, 0, sizeof(cpkt));
|
|
cpkt.chc_head.id = MESSAGE_REQ_EXEC_EVT_CHANCMD;
|
|
cpkt.chc_head.size = sizeof(cpkt);
|
|
cpkt.chc_op = EVT_CONF_DONE;
|
|
chn_iovec.iov_base = &cpkt;
|
|
chn_iovec.iov_len = cpkt.chc_head.size;
|
|
res = totempg_mcast (&chn_iovec, 1, TOTEMPG_AGREED);
|
|
|
|
recovery_phase = evt_wait_send_retained_events;
|
|
return 1;
|
|
}
|
|
|
|
/*
|
|
* Wait for send of retained events to finish
|
|
* the EVT_CONF_DONE handler will set the state to
|
|
* evt_recovery_complete to get us out of this.
|
|
*/
|
|
case evt_wait_send_retained_events:
|
|
{
|
|
log_printf(RECOVERY_DEBUG, "Wait for retained events\n");
|
|
return 1;
|
|
}
|
|
|
|
case evt_recovery_complete:
|
|
{
|
|
log_printf(RECOVERY_DEBUG, "Recovery complete\n");
|
|
return 0;
|
|
}
|
|
|
|
default:
|
|
log_printf(LOG_LEVEL_WARNING, "Bad recovery phase state: %u\n",
|
|
recovery_phase);
|
|
recovery_phase = evt_recovery_complete;
|
|
return 0;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* Not used at this time
|
|
*/
|
|
static void evt_sync_activate(void)
|
|
{
|
|
log_printf(RECOVERY_DEBUG, "Evt synchronize activation\n");
|
|
}
|
|
|
|
/*
|
|
* Not used at this time
|
|
*/
|
|
static void evt_sync_abort(void)
|
|
{
|
|
log_printf(RECOVERY_DEBUG, "Abort Evt synchronization\n");
|
|
}
|
|
|
|
/*
|
|
* vi: set autoindent tabstop=4 shiftwidth=4 :
|
|
*/
|