コード例 #1
0
ファイル: migration.c プロジェクト: Bletchley13/MBA
static MigrationState *migrate_init(const MigrationParams *params)
{
    MigrationState *s = migrate_get_current();
    int64_t bandwidth_limit = s->bandwidth_limit;
    bool enabled_capabilities[MIGRATION_CAPABILITY_MAX];
    int64_t xbzrle_cache_size = s->xbzrle_cache_size;
    int compress_level = s->parameters[MIGRATION_PARAMETER_COMPRESS_LEVEL];
    int compress_thread_count =
            s->parameters[MIGRATION_PARAMETER_COMPRESS_THREADS];
    int decompress_thread_count =
            s->parameters[MIGRATION_PARAMETER_DECOMPRESS_THREADS];

    memcpy(enabled_capabilities, s->enabled_capabilities,
           sizeof(enabled_capabilities));

    memset(s, 0, sizeof(*s));
    s->params = *params;
    memcpy(s->enabled_capabilities, enabled_capabilities,
           sizeof(enabled_capabilities));
    s->xbzrle_cache_size = xbzrle_cache_size;

    s->parameters[MIGRATION_PARAMETER_COMPRESS_LEVEL] = compress_level;
    s->parameters[MIGRATION_PARAMETER_COMPRESS_THREADS] =
               compress_thread_count;
    s->parameters[MIGRATION_PARAMETER_DECOMPRESS_THREADS] =
               decompress_thread_count;
    s->bandwidth_limit = bandwidth_limit;
    s->state = MIGRATION_STATUS_SETUP;
    trace_migrate_set_state(MIGRATION_STATUS_SETUP);

    s->total_time = qemu_clock_get_ms(QEMU_CLOCK_REALTIME);
    return s;
}
コード例 #2
0
ファイル: migration.c プロジェクト: Annovae/qemu
void migrate_fd_error(MigrationState *s)
{
    DPRINTF("setting error state\n");
    assert(s->file == NULL);
    s->state = MIG_STATE_ERROR;
    trace_migrate_set_state(MIG_STATE_ERROR);
    notifier_list_notify(&migration_state_notifiers, s);
}
コード例 #3
0
ファイル: migration.c プロジェクト: Bletchley13/MBA
void migrate_fd_error(MigrationState *s)
{
    trace_migrate_fd_error();
    assert(s->file == NULL);
    s->state = MIGRATION_STATUS_FAILED;
    trace_migrate_set_state(MIGRATION_STATUS_FAILED);
    notifier_list_notify(&migration_state_notifiers, s);
}
コード例 #4
0
ファイル: migration.c プロジェクト: joewaj/qemu-sam3n
void migrate_fd_connect(MigrationState *s)
{
    s->state = MIG_STATE_ACTIVE;
    trace_migrate_set_state(MIG_STATE_ACTIVE);

    /* This is a best 1st approximation. ns to ms */
    s->expected_downtime = max_downtime/1000000;
    s->cleanup_bh = qemu_bh_new(migrate_fd_cleanup, s);

    qemu_file_set_rate_limit(s->file,
                             s->bandwidth_limit / XFER_LIMIT_RATIO);

    qemu_thread_create(&s->thread, migration_thread, s,
                       QEMU_THREAD_JOINABLE);
    notifier_list_notify(&migration_state_notifiers, s);
}
コード例 #5
0
ファイル: migration.c プロジェクト: Bletchley13/MBA
void migrate_fd_connect(MigrationState *s)
{
    s->state = MIGRATION_STATUS_SETUP;
    trace_migrate_set_state(MIGRATION_STATUS_SETUP);

    /* This is a best 1st approximation. ns to ms */
    s->expected_downtime = max_downtime/1000000;
    s->cleanup_bh = qemu_bh_new(migrate_fd_cleanup, s);

    qemu_file_set_rate_limit(s->file,
                             s->bandwidth_limit / XFER_LIMIT_RATIO);

    /* Notify before starting migration thread */
    notifier_list_notify(&migration_state_notifiers, s);

    migrate_compress_threads_create();
    qemu_thread_create(&s->thread, "migration", migration_thread, s,
                       QEMU_THREAD_JOINABLE);
}
コード例 #6
0
MigrationState *tcp_start_outgoing_migration(Monitor *mon,
                                             const char *host_port,
                                             int64_t bandwidth_limit,
                                             int detach,
                                             int blk,
                                             int inc,
                                             Error **errp)
{
    FdMigrationState *s;

    s = qemu_mallocz(sizeof(*s));

    s->get_error = socket_errno;
    s->write = socket_write;
    s->close = tcp_close;
    s->mig_state.cancel = migrate_fd_cancel;
    s->mig_state.get_status = migrate_fd_get_status;
    s->mig_state.release = migrate_fd_release;

    s->mig_state.blk = blk;
    s->mig_state.shared = inc;

    s->state = MIG_STATE_ACTIVE;
    trace_migrate_set_state(MIG_STATE_ACTIVE);
    s->mon = NULL;
    s->bandwidth_limit = bandwidth_limit;

    if (!detach) {
        migrate_fd_monitor_suspend(s, mon);
    }

    s->fd = inet_nonblocking_connect(host_port, tcp_wait_for_connect, s,
                                     errp);
    if (error_is_set(errp)) {
        migrate_fd_error(s);
        qemu_free(s);
        return NULL;
    }

    return &s->mig_state;
}
コード例 #7
0
ファイル: migration.c プロジェクト: Annovae/qemu
static MigrationState *migrate_init(const MigrationParams *params)
{
    MigrationState *s = migrate_get_current();
    int64_t bandwidth_limit = s->bandwidth_limit;
    bool enabled_capabilities[MIGRATION_CAPABILITY_MAX];
    int64_t xbzrle_cache_size = s->xbzrle_cache_size;

    memcpy(enabled_capabilities, s->enabled_capabilities,
           sizeof(enabled_capabilities));

    memset(s, 0, sizeof(*s));
    s->params = *params;
    memcpy(s->enabled_capabilities, enabled_capabilities,
           sizeof(enabled_capabilities));
    s->xbzrle_cache_size = xbzrle_cache_size;

    s->bandwidth_limit = bandwidth_limit;
    s->state = MIG_STATE_SETUP;
    trace_migrate_set_state(MIG_STATE_SETUP);

    s->total_time = qemu_clock_get_ms(QEMU_CLOCK_REALTIME);
    return s;
}
コード例 #8
0
ファイル: migration.c プロジェクト: Annovae/qemu
static void migrate_set_state(MigrationState *s, int old_state, int new_state)
{
    if (atomic_cmpxchg(&s->state, old_state, new_state) == new_state) {
        trace_migrate_set_state(new_state);
    }
}
コード例 #9
0
ファイル: migration.c プロジェクト: joewaj/qemu-sam3n
static void migrate_finish_set_state(MigrationState *s, int new_state)
{
    if (atomic_cmpxchg(&s->state, MIG_STATE_ACTIVE, new_state) == new_state) {
        trace_migrate_set_state(new_state);
    }
}
コード例 #10
0
MigrationState *unix_start_outgoing_migration(Monitor *mon,
                                              const char *path,
					      size_t bandwidth_limit,
					      int detach,
					      int blk,
					      int inc)
{
    FdMigrationState *s;
    struct sockaddr_un addr;
    int ret;

    addr.sun_family = AF_UNIX;
    snprintf(addr.sun_path, sizeof(addr.sun_path), "%s", path);

    s = qemu_mallocz(sizeof(*s));

    s->get_error = unix_errno;
    s->write = unix_write;
    s->close = unix_close;
    s->mig_state.cancel = migrate_fd_cancel;
    s->mig_state.get_status = migrate_fd_get_status;
    s->mig_state.release = migrate_fd_release;

    s->mig_state.blk = blk;
    s->mig_state.shared = inc;

    s->state = MIG_STATE_ACTIVE;
    trace_migrate_set_state(MIG_STATE_ACTIVE);
    s->mon = NULL;
    s->bandwidth_limit = bandwidth_limit;
    s->fd = qemu_socket(PF_UNIX, SOCK_STREAM, 0);
    if (s->fd < 0) {
        DPRINTF("Unable to open socket");
        goto err_after_alloc;
    }

    socket_set_nonblock(s->fd);

    do {
        ret = connect(s->fd, (struct sockaddr *)&addr, sizeof(addr));
        if (ret == -1)
	    ret = -(s->get_error(s));

        if (ret == -EINPROGRESS || ret == -EWOULDBLOCK)
	    qemu_set_fd_handler2(s->fd, NULL, NULL, unix_wait_for_connect, s);
    } while (ret == -EINTR);

    if (ret < 0 && ret != -EINPROGRESS && ret != -EWOULDBLOCK) {
        DPRINTF("connect failed\n");
        goto err_after_open;
    }

    if (!detach) {
        migrate_fd_monitor_suspend(s, mon);
    }

    if (ret >= 0)
        migrate_fd_connect(s);

    return &s->mig_state;

err_after_open:
    close(s->fd);

err_after_alloc:
    qemu_free(s);
    return NULL;
}