summaryrefslogtreecommitdiffstats
path: root/migration.h
blob: d13ed4fca956f81c748f860ac1925ad1842f1f0a (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
/*
 * QEMU live migration
 *
 * Copyright IBM, Corp. 2008
 *
 * Authors:
 *  Anthony Liguori   <aliguori@us.ibm.com>
 *
 * This work is licensed under the terms of the GNU GPL, version 2.  See
 * the COPYING file in the top-level directory.
 *
 */

#ifndef QEMU_MIGRATION_H
#define QEMU_MIGRATION_H

#include "qdict.h"
#include "qemu-common.h"

#define MIG_STATE_ERROR		-1
#define MIG_STATE_COMPLETED	0
#define MIG_STATE_CANCELLED	1
#define MIG_STATE_ACTIVE	2

typedef struct MigrationState MigrationState;

struct MigrationState
{
    /* FIXME: add more accessors to print migration info */
    void (*cancel)(MigrationState *s);
    int (*get_status)(MigrationState *s);
    void (*release)(MigrationState *s);
    int blk;
    int shared;
};

typedef struct FdMigrationState FdMigrationState;

struct FdMigrationState
{
    MigrationState mig_state;
    int64_t bandwidth_limit;
    QEMUFile *file;
    int fd;
    Monitor *mon;
    int state;
    int (*get_error)(struct FdMigrationState*);
    int (*close)(struct FdMigrationState*);
    int (*write)(struct FdMigrationState*, const void *, size_t);
    void *opaque;
};

void process_incoming_migration(QEMUFile *f);

int qemu_start_incoming_migration(const char *uri);

int do_migrate(Monitor *mon, const QDict *qdict, QObject **ret_data);

int do_migrate_cancel(Monitor *mon, const QDict *qdict, QObject **ret_data);

int do_migrate_set_speed(Monitor *mon, const QDict *qdict, QObject **ret_data);

uint64_t migrate_max_downtime(void);

int do_migrate_set_downtime(Monitor *mon, const QDict *qdict,
                            QObject **ret_data);

void do_info_migrate_print(Monitor *mon, const QObject *data);

void do_info_migrate(Monitor *mon, QObject **ret_data);

int exec_start_incoming_migration(const char *host_port);

MigrationState *exec_start_outgoing_migration(Monitor *mon,
                                              const char *host_port,
					      int64_t bandwidth_limit,
					      int detach,
					      int blk,
					      int inc);

int tcp_start_incoming_migration(const char *host_port);

MigrationState *tcp_start_outgoing_migration(Monitor *mon,
                                             const char *host_port,
					     int64_t bandwidth_limit,
					     int detach,
					     int blk,
					     int inc);

int unix_start_incoming_migration(const char *path);

MigrationState *unix_start_outgoing_migration(Monitor *mon,
                                              const char *path,
					      int64_t bandwidth_limit,
					      int detach,
					      int blk,
					      int inc);

int fd_start_incoming_migration(const char *path);

MigrationState *fd_start_outgoing_migration(Monitor *mon,
					    const char *fdname,
					    int64_t bandwidth_limit,
					    int detach,
					    int blk,
					    int inc);

void migrate_fd_monitor_suspend(FdMigrationState *s, Monitor *mon);

void migrate_fd_error(FdMigrationState *s);

int migrate_fd_cleanup(FdMigrationState *s);

void migrate_fd_put_notify(void *opaque);

ssize_t migrate_fd_put_buffer(void *opaque, const void *data, size_t size);

void migrate_fd_connect(FdMigrationState *s);

void migrate_fd_put_ready(void *opaque);

int migrate_fd_get_status(MigrationState *mig_state);

void migrate_fd_cancel(MigrationState *mig_state);

void migrate_fd_release(MigrationState *mig_state);

void migrate_fd_wait_for_unfreeze(void *opaque);

int migrate_fd_close(void *opaque);

static inline FdMigrationState *migrate_to_fms(MigrationState *mig_state)
{
    return container_of(mig_state, FdMigrationState, mig_state);
}

#endif
OpenPOWER on IntegriCloud