vmbus_channel::simple

Trait SaveRestoreSimpleVmbusDevice

Source 
pub trait SaveRestoreSimpleVmbusDevice: SimpleVmbusDevice {
    // Required methods
    fn save_open(&mut self, runner: &Self::Runner) -> Self::SavedState;
    fn restore_open(
        &mut self,
        state: Self::SavedState,
        channel: RawAsyncChannel<GpadlRingMem>,
    ) -> Result<Self::Runner, ChannelOpenError>;
}
Expand description

Trait implemented by simple vmbus devices that support save/restore.

If you implement this, make sure to return Some(self) from SimpleVmbusDevice::supports_save_restore.

Required Methods§

Source

fn save_open(&mut self, runner: &Self::Runner) -> Self::SavedState

Saves the channel.

Will only be called if the channel is open. If there is state to save on a closed channel, implement VmbusDevice instead.

Source

fn restore_open( &mut self, state: Self::SavedState, channel: RawAsyncChannel<GpadlRingMem>, ) -> Result<Self::Runner, ChannelOpenError>

Restores the channel.

Will only be called if the channel was saved open. If there is state to save on a closed channel, implement VmbusDevice instead.

Implementors§