Merge branch 'upstream-merge'
[qemu-kvm/markmc.git] / migration.h
blob2d28b8f395c99cf1978608147780d1b789303ffb
1 /*
2 * QEMU live migration
4 * Copyright IBM, Corp. 2008
6 * Authors:
7 * Anthony Liguori <aliguori@us.ibm.com>
9 * This work is licensed under the terms of the GNU GPL, version 2. See
10 * the COPYING file in the top-level directory.
14 #ifndef QEMU_MIGRATION_H
15 #define QEMU_MIGRATION_H
17 #include "qdict.h"
18 #include "qemu-common.h"
20 #define MIG_STATE_ERROR -1
21 #define MIG_STATE_COMPLETED 0
22 #define MIG_STATE_CANCELLED 1
23 #define MIG_STATE_ACTIVE 2
25 typedef struct MigrationState MigrationState;
27 struct MigrationState
29 /* FIXME: add more accessors to print migration info */
30 void (*cancel)(MigrationState *s);
31 int (*get_status)(MigrationState *s);
32 void (*release)(MigrationState *s);
35 typedef struct FdMigrationState FdMigrationState;
37 struct FdMigrationState
39 MigrationState mig_state;
40 int64_t bandwidth_limit;
41 QEMUFile *file;
42 int fd;
43 Monitor *mon_resume;
44 int state;
45 int (*get_error)(struct FdMigrationState*);
46 int (*close)(struct FdMigrationState*);
47 int (*write)(struct FdMigrationState*, const void *, size_t);
48 void *opaque;
51 void qemu_start_incoming_migration(const char *uri);
53 void do_migrate(Monitor *mon, const QDict *qdict, QObject **ret_data);
55 void do_migrate_cancel(Monitor *mon, const QDict *qdict, QObject **ret_data);
57 void do_migrate_set_speed(Monitor *mon, const QDict *qdict, QObject **ret_data);
59 uint64_t migrate_max_downtime(void);
61 void do_migrate_set_downtime(Monitor *mon, const QDict *qdict);
63 void do_info_migrate(Monitor *mon);
65 int exec_start_incoming_migration(const char *host_port);
67 MigrationState *exec_start_outgoing_migration(const char *host_port,
68 int64_t bandwidth_limit,
69 int detach);
71 int tcp_start_incoming_migration(const char *host_port);
73 MigrationState *tcp_start_outgoing_migration(const char *host_port,
74 int64_t bandwidth_limit,
75 int detach);
77 int unix_start_incoming_migration(const char *path);
79 MigrationState *unix_start_outgoing_migration(const char *path,
80 int64_t bandwidth_limit,
81 int detach);
83 int fd_start_incoming_migration(const char *path);
85 MigrationState *fd_start_outgoing_migration(Monitor *mon,
86 const char *fdname,
87 int64_t bandwidth_limit,
88 int detach);
90 void migrate_fd_monitor_suspend(FdMigrationState *s);
92 void migrate_fd_error(FdMigrationState *s);
94 void migrate_fd_cleanup(FdMigrationState *s);
96 void migrate_fd_put_notify(void *opaque);
98 ssize_t migrate_fd_put_buffer(void *opaque, const void *data, size_t size);
100 void migrate_fd_connect(FdMigrationState *s);
102 void migrate_fd_put_ready(void *opaque);
104 int migrate_fd_get_status(MigrationState *mig_state);
106 void migrate_fd_cancel(MigrationState *mig_state);
108 void migrate_fd_release(MigrationState *mig_state);
110 void migrate_fd_wait_for_unfreeze(void *opaque);
112 int migrate_fd_close(void *opaque);
114 static inline FdMigrationState *migrate_to_fms(MigrationState *mig_state)
116 return container_of(mig_state, FdMigrationState, mig_state);
119 #endif