Don't compile aio code if CONFIG_LINUX_AIO is undefined
[armpft.git] / migration.h
blob96dad38eb580ec18471fd69d5b0e7d6b369399d5
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 "qemu-common.h"
19 #define MIG_STATE_ERROR -1
20 #define MIG_STATE_COMPLETED 0
21 #define MIG_STATE_CANCELLED 1
22 #define MIG_STATE_ACTIVE 2
24 typedef struct MigrationState MigrationState;
26 struct MigrationState
28 /* FIXME: add more accessors to print migration info */
29 void (*cancel)(MigrationState *s);
30 int (*get_status)(MigrationState *s);
31 void (*release)(MigrationState *s);
34 typedef struct FdMigrationState FdMigrationState;
36 struct FdMigrationState
38 MigrationState mig_state;
39 int64_t bandwidth_limit;
40 QEMUFile *file;
41 int fd;
42 Monitor *mon_resume;
43 int state;
44 int (*get_error)(struct FdMigrationState*);
45 int (*close)(struct FdMigrationState*);
46 int (*write)(struct FdMigrationState*, const void *, size_t);
47 void *opaque;
50 void qemu_start_incoming_migration(const char *uri);
52 void do_migrate(Monitor *mon, int detach, const char *uri);
54 void do_migrate_cancel(Monitor *mon);
56 void do_migrate_set_speed(Monitor *mon, const char *value);
58 uint64_t migrate_max_downtime(void);
60 void do_migrate_set_downtime(Monitor *mon, const char *value);
62 void do_info_migrate(Monitor *mon);
64 int exec_start_incoming_migration(const char *host_port);
66 MigrationState *exec_start_outgoing_migration(const char *host_port,
67 int64_t bandwidth_limit,
68 int detach);
70 int tcp_start_incoming_migration(const char *host_port);
72 MigrationState *tcp_start_outgoing_migration(const char *host_port,
73 int64_t bandwidth_limit,
74 int detach);
76 int unix_start_incoming_migration(const char *path);
78 MigrationState *unix_start_outgoing_migration(const char *path,
79 int64_t bandwidth_limit,
80 int detach);
82 int fd_start_incoming_migration(const char *path);
84 MigrationState *fd_start_outgoing_migration(Monitor *mon,
85 const char *fdname,
86 int64_t bandwidth_limit,
87 int detach);
89 void migrate_fd_monitor_suspend(FdMigrationState *s);
91 void migrate_fd_error(FdMigrationState *s);
93 void migrate_fd_cleanup(FdMigrationState *s);
95 void migrate_fd_put_notify(void *opaque);
97 ssize_t migrate_fd_put_buffer(void *opaque, const void *data, size_t size);
99 void migrate_fd_connect(FdMigrationState *s);
101 void migrate_fd_put_ready(void *opaque);
103 int migrate_fd_get_status(MigrationState *mig_state);
105 void migrate_fd_cancel(MigrationState *mig_state);
107 void migrate_fd_release(MigrationState *mig_state);
109 void migrate_fd_wait_for_unfreeze(void *opaque);
111 int migrate_fd_close(void *opaque);
113 static inline FdMigrationState *migrate_to_fms(MigrationState *mig_state)
115 return container_of(mig_state, FdMigrationState, mig_state);
118 #endif