pub trait ChannelMutTxnT: ChannelTxnT + GraphMutTxnT {
    fn graph_mut(channel: &mut Self::Channel) -> &mut Self::Graph;
fn touch_channel(&mut self, channel: &mut Self::Channel, t: Option<u64>);
fn put_changes(
        &mut self,
        channel: &mut Self::Channel,
        p: ChangeId,
        t: ApplyTimestamp,
        h: &Hash
    ) -> Result<Option<Merkle>, TxnErr<Self::GraphError>>;
fn del_changes(
        &mut self,
        channel: &mut Self::Channel,
        p: ChangeId,
        t: ApplyTimestamp
    ) -> Result<bool, TxnErr<Self::GraphError>>;
fn put_tags(
        &mut self,
        channel: &mut Self::Tags,
        n: u64,
        m: &Merkle
    ) -> Result<(), TxnErr<Self::GraphError>>;
fn tags_mut<'a>(
        &mut self,
        channel: &'a mut Self::Channel
    ) -> &'a mut Self::Tags;
fn del_tags(
        &mut self,
        channel: &mut Self::Tags,
        n: u64
    ) -> Result<(), TxnErr<Self::GraphError>>; }

Required methods

Add a change and a timestamp to a change table. Returns None if and only if (p, t) was already in the change table, in which case no insertion happened. Returns the new state else.

Delete a change from a change table. Returns true if and only if (p, t) was in the change table.

Implementors