Method write_txn

atomic-core/src/pristine/txn/pristine.rs:351–365

Begin a read-write transaction Only one write transaction can be active at a time. The transaction must be explicitly committed with `commit()` or it will be rolled back when dropped.

(&self)

    /// must be explicitly committed with `commit()` or it will be rolled back
    /// when dropped.
    pub fn write_txn(&self) -> PristineResult<WriteTxn<'_>> {
        let PristineDatabase::Writable(db) = &self.db else {
            return Err(PristineError::Io(std::io::Error::new(
                std::io::ErrorKind::PermissionDenied,
                "cannot write through a read-only pristine handle",
            )));
        };
        let txn = db.begin_write()?;
        Ok(WriteTxn::new(
            txn,
            &self.next_node_id,
            &self.next_view_id,
            &self.next_inode,
        ))
    }

    /// Allocate a new node ID
    ///