mirror of https://gitee.com/openkylin/qemu.git
143 lines
3.7 KiB
C
143 lines
3.7 KiB
C
/*
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* QEMU live migration
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*
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* Copyright IBM, Corp. 2008
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*
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* Authors:
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* Anthony Liguori <aliguori@us.ibm.com>
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*
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* This work is licensed under the terms of the GNU GPL, version 2. See
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* the COPYING file in the top-level directory.
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*
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*/
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#ifndef QEMU_MIGRATION_H
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#define QEMU_MIGRATION_H
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#include "qdict.h"
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#include "qemu-common.h"
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#include "notify.h"
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#define MIG_STATE_ERROR -1
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#define MIG_STATE_COMPLETED 0
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#define MIG_STATE_CANCELLED 1
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#define MIG_STATE_ACTIVE 2
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typedef struct MigrationState MigrationState;
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struct MigrationState
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{
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/* FIXME: add more accessors to print migration info */
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void (*cancel)(MigrationState *s);
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int (*get_status)(MigrationState *s);
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void (*release)(MigrationState *s);
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int blk;
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int shared;
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};
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typedef struct FdMigrationState FdMigrationState;
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struct FdMigrationState
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{
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MigrationState mig_state;
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int64_t bandwidth_limit;
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QEMUFile *file;
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int fd;
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Monitor *mon;
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int state;
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int (*get_error)(struct FdMigrationState*);
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int (*close)(struct FdMigrationState*);
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int (*write)(struct FdMigrationState*, const void *, size_t);
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void *opaque;
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};
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void process_incoming_migration(QEMUFile *f);
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int qemu_start_incoming_migration(const char *uri);
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int do_migrate(Monitor *mon, const QDict *qdict, QObject **ret_data);
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int do_migrate_cancel(Monitor *mon, const QDict *qdict, QObject **ret_data);
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int do_migrate_set_speed(Monitor *mon, const QDict *qdict, QObject **ret_data);
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uint64_t migrate_max_downtime(void);
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int do_migrate_set_downtime(Monitor *mon, const QDict *qdict,
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QObject **ret_data);
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void do_info_migrate_print(Monitor *mon, const QObject *data);
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void do_info_migrate(Monitor *mon, QObject **ret_data);
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int exec_start_incoming_migration(const char *host_port);
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MigrationState *exec_start_outgoing_migration(Monitor *mon,
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const char *host_port,
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int64_t bandwidth_limit,
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int detach,
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int blk,
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int inc);
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int tcp_start_incoming_migration(const char *host_port);
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MigrationState *tcp_start_outgoing_migration(Monitor *mon,
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const char *host_port,
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int64_t bandwidth_limit,
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int detach,
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int blk,
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int inc);
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int unix_start_incoming_migration(const char *path);
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MigrationState *unix_start_outgoing_migration(Monitor *mon,
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const char *path,
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int64_t bandwidth_limit,
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int detach,
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int blk,
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int inc);
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int fd_start_incoming_migration(const char *path);
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MigrationState *fd_start_outgoing_migration(Monitor *mon,
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const char *fdname,
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int64_t bandwidth_limit,
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int detach,
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int blk,
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int inc);
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void migrate_fd_monitor_suspend(FdMigrationState *s, Monitor *mon);
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void migrate_fd_error(FdMigrationState *s);
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int migrate_fd_cleanup(FdMigrationState *s);
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void migrate_fd_put_notify(void *opaque);
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ssize_t migrate_fd_put_buffer(void *opaque, const void *data, size_t size);
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void migrate_fd_connect(FdMigrationState *s);
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void migrate_fd_put_ready(void *opaque);
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int migrate_fd_get_status(MigrationState *mig_state);
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void migrate_fd_cancel(MigrationState *mig_state);
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void migrate_fd_release(MigrationState *mig_state);
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void migrate_fd_wait_for_unfreeze(void *opaque);
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int migrate_fd_close(void *opaque);
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static inline FdMigrationState *migrate_to_fms(MigrationState *mig_state)
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{
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return container_of(mig_state, FdMigrationState, mig_state);
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}
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void add_migration_state_change_notifier(Notifier *notify);
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void remove_migration_state_change_notifier(Notifier *notify);
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int get_migration_state(void);
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#endif
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