Method send

vmm/src/vm.rs:3396–3452

(
        &self,
        snapshot: &Snapshot,
        destination_url: &str,
    )

impl Transportable for Vm {
    fn send(
        &self,
        snapshot: &Snapshot,
        destination_url: &str,
    ) -> std::result::Result<(), MigratableError> {
        let mut snapshot_config_path = url_to_path(destination_url)?;
        snapshot_config_path.push(SNAPSHOT_CONFIG_FILE);

        // Create the snapshot config file
        let mut snapshot_config_file = OpenOptions::new()
            .read(true)
            .write(true)
            .create_new(true)
            .open(snapshot_config_path)
            .map_err(|e| MigratableError::MigrateSend(e.into()))?;

        // Serialize and write the snapshot config
        let vm_config = serde_json::to_string(self.config.lock().unwrap().deref())
            .map_err(|e| MigratableError::MigrateSend(e.into()))?;

        snapshot_config_file
            .write(vm_config.as_bytes())
            .map_err(|e| MigratableError::MigrateSend(e.into()))?;

        let mut snapshot_state_path = url_to_path(destination_url)?;
        snapshot_state_path.push(SNAPSHOT_STATE_FILE);

        // Create the snapshot state file
        let mut snapshot_state_file = OpenOptions::new()
            .read(true)
            .write(true)
            .create_new(true)
            .open(snapshot_state_path)
            .map_err(|e| MigratableError::MigrateSend(e.into()))?;

        // Serialize and write the snapshot state
        let vm_state =
            serde_json::to_vec(snapshot).map_err(|e| MigratableError::MigrateSend(e.into()))?;

        snapshot_state_file
            .write(&vm_state)
            .map_err(|e| MigratableError::MigrateSend(e.into()))?;

        // Tell the memory manager to also send/write its own snapshot.
        if let Some(memory_manager_snapshot) = snapshot.snapshots.get(MEMORY_MANAGER_SNAPSHOT_ID) {
            self.memory_manager
                .lock()
                .unwrap()
                .send(&memory_manager_snapshot.clone(), destination_url)?;
        } else {
            return Err(MigratableError::Restore(anyhow!(
                "Missing memory manager snapshot"
            )));
        }

        Ok(())
    }
}