libcacard: s/strip(args++)/strip(args+1)
[qemu/ar7.git] / migration.h
blob050c56c5a4ef753c46c026963520191d7063cc18
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"
19 #include "notify.h"
21 #define MIG_STATE_ERROR -1
22 #define MIG_STATE_COMPLETED 0
23 #define MIG_STATE_CANCELLED 1
24 #define MIG_STATE_ACTIVE 2
26 typedef struct MigrationState MigrationState;
28 struct MigrationState
30 /* FIXME: add more accessors to print migration info */
31 void (*cancel)(MigrationState *s);
32 int (*get_status)(MigrationState *s);
33 void (*release)(MigrationState *s);
34 int blk;
35 int shared;
38 typedef struct FdMigrationState FdMigrationState;
40 struct FdMigrationState
42 MigrationState mig_state;
43 int64_t bandwidth_limit;
44 QEMUFile *file;
45 int fd;
46 Monitor *mon;
47 int state;
48 int (*get_error)(struct FdMigrationState*);
49 int (*close)(struct FdMigrationState*);
50 int (*write)(struct FdMigrationState*, const void *, size_t);
51 void *opaque;
54 void process_incoming_migration(QEMUFile *f);
56 int qemu_start_incoming_migration(const char *uri);
58 int do_migrate(Monitor *mon, const QDict *qdict, QObject **ret_data);
60 int do_migrate_cancel(Monitor *mon, const QDict *qdict, QObject **ret_data);
62 int do_migrate_set_speed(Monitor *mon, const QDict *qdict, QObject **ret_data);
64 uint64_t migrate_max_downtime(void);
66 int do_migrate_set_downtime(Monitor *mon, const QDict *qdict,
67 QObject **ret_data);
69 void do_info_migrate_print(Monitor *mon, const QObject *data);
71 void do_info_migrate(Monitor *mon, QObject **ret_data);
73 int exec_start_incoming_migration(const char *host_port);
75 MigrationState *exec_start_outgoing_migration(Monitor *mon,
76 const char *host_port,
77 int64_t bandwidth_limit,
78 int detach,
79 int blk,
80 int inc);
82 int tcp_start_incoming_migration(const char *host_port);
84 MigrationState *tcp_start_outgoing_migration(Monitor *mon,
85 const char *host_port,
86 int64_t bandwidth_limit,
87 int detach,
88 int blk,
89 int inc);
91 int unix_start_incoming_migration(const char *path);
93 MigrationState *unix_start_outgoing_migration(Monitor *mon,
94 const char *path,
95 int64_t bandwidth_limit,
96 int detach,
97 int blk,
98 int inc);
100 int fd_start_incoming_migration(const char *path);
102 MigrationState *fd_start_outgoing_migration(Monitor *mon,
103 const char *fdname,
104 int64_t bandwidth_limit,
105 int detach,
106 int blk,
107 int inc);
109 void migrate_fd_monitor_suspend(FdMigrationState *s, Monitor *mon);
111 void migrate_fd_error(FdMigrationState *s);
113 int migrate_fd_cleanup(FdMigrationState *s);
115 void migrate_fd_put_notify(void *opaque);
117 ssize_t migrate_fd_put_buffer(void *opaque, const void *data, size_t size);
119 void migrate_fd_connect(FdMigrationState *s);
121 void migrate_fd_put_ready(void *opaque);
123 int migrate_fd_get_status(MigrationState *mig_state);
125 void migrate_fd_cancel(MigrationState *mig_state);
127 void migrate_fd_release(MigrationState *mig_state);
129 void migrate_fd_wait_for_unfreeze(void *opaque);
131 int migrate_fd_close(void *opaque);
133 static inline FdMigrationState *migrate_to_fms(MigrationState *mig_state)
135 return container_of(mig_state, FdMigrationState, mig_state);
138 void add_migration_state_change_notifier(Notifier *notify);
139 void remove_migration_state_change_notifier(Notifier *notify);
140 int get_migration_state(void);
142 uint64_t ram_bytes_remaining(void);
143 uint64_t ram_bytes_transferred(void);
144 uint64_t ram_bytes_total(void);
146 int ram_save_live(Monitor *mon, QEMUFile *f, int stage, void *opaque);
147 int ram_load(QEMUFile *f, void *opaque, int version_id);
149 extern int incoming_expected;
151 #endif