45 lines
1.3 KiB
Rust
45 lines
1.3 KiB
Rust
use util::*;
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use blockchain::*;
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use views::{BlockView};
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use verification::*;
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use error::*;
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use engine::Engine;
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use sync::*;
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/// A queue of blocks. Sits between network or other I/O and the BlockChain.
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/// Sorts them ready for blockchain insertion.
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pub struct BlockQueue {
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bc: Arc<RwLock<BlockChain>>,
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engine: Arc<Box<Engine>>,
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message_channel: IoChannel<NetSyncMessage>
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}
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impl BlockQueue {
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/// Creates a new queue instance.
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pub fn new(bc: Arc<RwLock<BlockChain>>, engine: Arc<Box<Engine>>, message_channel: IoChannel<NetSyncMessage>) -> BlockQueue {
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BlockQueue {
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bc: bc,
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engine: engine,
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message_channel: message_channel
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}
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}
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/// Clear the queue and stop verification activity.
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pub fn clear(&mut self) {
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}
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/// Add a block to the queue.
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pub fn import_block(&mut self, bytes: &[u8]) -> ImportResult {
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let header = BlockView::new(bytes).header();
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if self.bc.read().unwrap().is_known(&header.hash()) {
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return Err(ImportError::AlreadyInChain);
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}
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try!(verify_block_basic(bytes, self.engine.deref().deref()));
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try!(verify_block_unordered(bytes, self.engine.deref().deref()));
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try!(verify_block_final(bytes, self.engine.deref().deref(), self.bc.read().unwrap().deref()));
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try!(self.message_channel.send(UserMessage(SyncMessage::BlockVerified(bytes.to_vec()))).map_err(|e| Error::from(e)));
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Ok(())
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}
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}
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