Method snapshot

vmm/src/memory_manager.rs:3057–3073

(&mut self)

    }

    fn snapshot(&mut self) -> result::Result<Snapshot, MigratableError> {
        let memory_ranges = self.memory_range_table(true)?;

        // Store locally this list of ranges as it will be used through the
        // Transportable::send() implementation. The point is to avoid the
        // duplication of code regarding the creation of the path for each
        // region. The 'snapshot' step creates the list of memory regions,
        // including information about the need to copy a memory region or
        // not. This saves the 'send' step having to go through the same
        // process, and instead it can directly proceed with storing the
        // memory range content for the ranges requiring it.
        self.snapshot_memory_ranges = memory_ranges;

        Ok(Snapshot::from_data(SnapshotData::new_from_state(
            &self.snapshot_data(),
        )?))
    }
}

/// Write a single guest RAM region to the snapshot file at `dst_offset`,