pub struct HeaderStage<Provider, Downloader: HeaderDownloader> { /* private fields */ }
Expand description
The headers stage.
The headers stage downloads all block headers from the highest block in storage to the perceived highest block on the network.
The headers are processed and data is inserted into static files, as well as into the
HeaderNumbers
table.
NOTE: This stage downloads headers in reverse and pushes them to the ETL [Collector
]. It then
proceeds to push them sequentially to static files. The stage checkpoint is not updated until
this stage is done.
Implementations§
Source§impl<Provider, Downloader> HeaderStage<Provider, Downloader>where
Downloader: HeaderDownloader,
impl<Provider, Downloader> HeaderStage<Provider, Downloader>where
Downloader: HeaderDownloader,
Trait Implementations§
Source§impl<Provider: Debug, Downloader: Debug + HeaderDownloader> Debug for HeaderStage<Provider, Downloader>
impl<Provider: Debug, Downloader: Debug + HeaderDownloader> Debug for HeaderStage<Provider, Downloader>
Source§impl<Provider, P, D> Stage<Provider> for HeaderStage<P, D>where
P: HeaderSyncGapProvider,
D: HeaderDownloader<Header = Header>,
Provider: DBProvider<Tx: DbTxMut> + StaticFileProviderFactory,
impl<Provider, P, D> Stage<Provider> for HeaderStage<P, D>where
P: HeaderSyncGapProvider,
D: HeaderDownloader<Header = Header>,
Provider: DBProvider<Tx: DbTxMut> + StaticFileProviderFactory,
Source§fn execute(
&mut self,
provider: &Provider,
input: ExecInput,
) -> Result<ExecOutput, StageError>
fn execute( &mut self, provider: &Provider, input: ExecInput, ) -> Result<ExecOutput, StageError>
Download the headers in reverse order (falling block numbers) starting from the tip of the chain
Source§fn unwind(
&mut self,
provider: &Provider,
input: UnwindInput,
) -> Result<UnwindOutput, StageError>
fn unwind( &mut self, provider: &Provider, input: UnwindInput, ) -> Result<UnwindOutput, StageError>
Unwind the stage.
Source§fn poll_execute_ready(
&mut self,
cx: &mut Context<'_>,
input: ExecInput,
) -> Poll<Result<(), StageError>>
fn poll_execute_ready( &mut self, cx: &mut Context<'_>, input: ExecInput, ) -> Poll<Result<(), StageError>>
Returns
Poll::Ready(Ok(()))
when the stage is ready to execute the given range. Read more§fn post_execute_commit(&mut self) -> Result<(), StageError>
fn post_execute_commit(&mut self) -> Result<(), StageError>
Post execution commit hook. Read more
§fn post_unwind_commit(&mut self) -> Result<(), StageError>
fn post_unwind_commit(&mut self) -> Result<(), StageError>
Post unwind commit hook. Read more
Auto Trait Implementations§
impl<Provider, Downloader> !Freeze for HeaderStage<Provider, Downloader>
impl<Provider, Downloader> !RefUnwindSafe for HeaderStage<Provider, Downloader>
impl<Provider, Downloader> Send for HeaderStage<Provider, Downloader>where
Provider: Send,
impl<Provider, Downloader> Sync for HeaderStage<Provider, Downloader>where
Provider: Sync,
impl<Provider, Downloader> Unpin for HeaderStage<Provider, Downloader>where
Provider: Unpin,
impl<Provider, Downloader> !UnwindSafe for HeaderStage<Provider, Downloader>
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Stage
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