-static int migration_put_buffer(void *opaque, const uint8_t *buf,
- int64_t pos, int size)
-{
- MigrationState *s = opaque;
- ssize_t ret;
- size_t sent;
-
- DPRINTF("putting %d bytes at %" PRId64 "\n", size, pos);
-
- ret = qemu_file_get_error(s->file);
- if (ret) {
- DPRINTF("flush when error, bailing: %s\n", strerror(-ret));
- return ret;
- }
-
- if (size <= 0) {
- return size;
- }
-
- sent = 0;
- while (size) {
- ret = migrate_fd_put_buffer(s, buf, size);
- if (ret <= 0) {
- DPRINTF("error flushing data, %zd\n", ret);
- return ret;
- } else {
- DPRINTF("flushed %zd byte(s)\n", ret);
- sent += ret;
- buf += ret;
- size -= ret;
- s->bytes_xfer += ret;
- }
- }
-
- return sent;
-}
-
-static int migration_close(void *opaque)
-{
- MigrationState *s = opaque;
-
- DPRINTF("closing\n");
-
- qemu_mutex_unlock_iothread();
- qemu_thread_join(&s->thread);
- qemu_mutex_lock_iothread();
- assert(s->state != MIG_STATE_ACTIVE);
-
- return migrate_fd_close(s);
-}
-
-static int migration_get_fd(void *opaque)
-{
- MigrationState *s = opaque;
-
- return s->fd;
-}
-
-/*
- * The meaning of the return values is:
- * 0: We can continue sending
- * 1: Time to stop
- * negative: There has been an error
- */
-static int migration_rate_limit(void *opaque)
-{
- MigrationState *s = opaque;
- int ret;
-
- ret = qemu_file_get_error(s->file);
- if (ret) {
- return ret;
- }
-
- if (s->bytes_xfer >= s->xfer_limit) {
- return 1;
- }
-
- return 0;
-}
-
-static int64_t migration_set_rate_limit(void *opaque, int64_t new_rate)
-{
- MigrationState *s = opaque;
- if (qemu_file_get_error(s->file)) {
- goto out;
- }
- if (new_rate > SIZE_MAX) {
- new_rate = SIZE_MAX;
- }
-
- s->xfer_limit = new_rate / XFER_LIMIT_RATIO;
-
-out:
- return s->xfer_limit;
-}
-
-static int64_t migration_get_rate_limit(void *opaque)
-{
- MigrationState *s = opaque;
-
- return s->xfer_limit;
-}
-