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colo_checkpoint_notify() is mostly used in colo.c. Outside we use it once when x-checkpoint-delay migration parameter is set. So, let's simplify the external API to only that function - notify COLO that parameter was set. This make external API more robust and hides implementation details from external callers. Also this helps us to make COLO module optional in further patch (i.e. we are going to add possibility not build the COLO module). Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@yandex-team.ru> Reviewed-by: Juan Quintela <quintela@redhat.com> Reviewed-by: Peter Xu <peterx@redhat.com> Reviewed-by: Zhang Chen <chen.zhang@intel.com> Message-Id: <20230428194928.1426370-3-vsementsov@yandex-team.ru> Signed-off-by: Juan Quintela <quintela@redhat.com>
49 lines
1.2 KiB
C
49 lines
1.2 KiB
C
/*
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* COarse-grain LOck-stepping Virtual Machines for Non-stop Service (COLO)
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* (a.k.a. Fault Tolerance or Continuous Replication)
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*
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* Copyright (c) 2016 HUAWEI TECHNOLOGIES CO., LTD.
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* Copyright (c) 2016 FUJITSU LIMITED
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* Copyright (c) 2016 Intel Corporation
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*
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* This work is licensed under the terms of the GNU GPL, version 2 or
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* later. See the COPYING file in the top-level directory.
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*/
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#ifndef QEMU_COLO_H
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#define QEMU_COLO_H
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#include "qapi/qapi-types-migration.h"
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enum colo_event {
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COLO_EVENT_NONE,
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COLO_EVENT_CHECKPOINT,
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COLO_EVENT_FAILOVER,
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};
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void migrate_start_colo_process(MigrationState *s);
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bool migration_in_colo_state(void);
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/* loadvm */
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int migration_incoming_enable_colo(void);
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void migration_incoming_disable_colo(void);
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bool migration_incoming_colo_enabled(void);
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void *colo_process_incoming_thread(void *opaque);
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bool migration_incoming_in_colo_state(void);
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COLOMode get_colo_mode(void);
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/* failover */
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void colo_do_failover(void);
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/*
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* colo_checkpoint_delay_set
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*
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* Handles change of x-checkpoint-delay migration parameter, called from
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* migrate_params_apply() to notify COLO module about the change.
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*/
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void colo_checkpoint_delay_set(void);
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void colo_shutdown(void);
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#endif
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