Trait ethcore::client::traits::ImportExportBlocks

pub trait ImportExportBlocks {
    fn export_blocks<'a>(
        &self, 
        destination: Box<dyn Write + 'a>, 
        from: BlockId, 
        to: BlockId, 
        format: Option<DataFormat>
    ) -> Result<(), String>;
    fn import_blocks<'a>(
        &self, 
        source: Box<dyn Read + 'a>, 
        format: Option<DataFormat>
    ) -> Result<(), String>;
}

Provides a method for importing/exporting blocks

Required methods

fn export_blocks<'a>(
    &self,
    destination: Box<dyn Write + 'a>,
    from: BlockId,
    to: BlockId,
    format: Option<DataFormat>
) -> Result<(), String>

Export blocks to destination, with the given from, to and format argument. destination could be a file or stdout. If the format is hex, each block is written on a new line. For binary exports, all block data is written to the same line.

fn import_blocks<'a>(
    &self,
    source: Box<dyn Read + 'a>,
    format: Option<DataFormat>
) -> Result<(), String>

Import blocks from destination, with the given format argument Source could be a file or stdout. For hex format imports, it attempts to read the blocks on a line by line basis. For binary format imports, reads the 8 byte RLP header in order to decode the block length to be read.

Implementors

impl ImportExportBlocks for Client