mirror of
https://github.com/status-im/nimbus-eth1.git
synced 2025-02-12 03:57:05 +00:00
0a3bc102eb
* Update sync scheduler pool mode why: The pool mode allows to loop over active peers one after another. This is ideal for soft re-starting peers. As this is a two tier experience (start/stop, setup/release) the loop must be run twice. This is controlled by a more rigid re-definition of how to use the `poolMode` flag. * Mitigate RLP serialiser deficiency why: Currently, serialising the `BlockBody` in not conevrtible and need to be checked in the `eth` module. Currently a local fix for the wire protocol applies. Unit tests will stay (after this local solution will have been removed.) * Code cosmetics and massage details: Main part is `types.toStr()` as a unified function for logging block numbers. * Allow to use a logical genesis replacement (start of history) why: Snap sync will set up an arbitrary pivot at a block number different from zero. In fact, the higher the block number the better. details: A non-genesis start of history will currently only affect the score values which were derived from the difficulty. * Provide function to store the snap pivot block header in chain db why: Together with the start of history facility, this allows to proceed with full syncing once snap has finished. details: Snap db storage was switched from a sub-tables to the flat chain db. * Provide database completeness and sanity checker details: For debugging on smaller databases, only * Implement snap -> full sync switch
121 lines
3.3 KiB
Nim
121 lines
3.3 KiB
Nim
# Nimbus
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# Copyright (c) 2021 Status Research & Development GmbH
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# Licensed under either of
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# * Apache License, version 2.0, ([LICENSE-APACHE](LICENSE-APACHE) or
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# http://www.apache.org/licenses/LICENSE-2.0)
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# * MIT license ([LICENSE-MIT](LICENSE-MIT) or
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# http://opensource.org/licenses/MIT)
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# at your option. This file may not be copied, modified, or distributed
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# except according to those terms.
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{.push raises: [].}
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import
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chronos,
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eth/[common, p2p],
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stew/byteutils,
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"../../.."/[protocol, types],
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../../worker_desc,
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./com_error
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logScope:
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topics = "snap-fetch"
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# ------------------------------------------------------------------------------
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# Public functions
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# ------------------------------------------------------------------------------
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proc getBlockHeader*(
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buddy: SnapBuddyRef;
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num: BlockNumber;
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): Future[Result[BlockHeader,ComError]]
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{.async.} =
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## Get single block header
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let
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peer = buddy.peer
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reqLen = 1u
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hdrReq = BlocksRequest(
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startBlock: HashOrNum(
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isHash: false,
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number: num),
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maxResults: reqLen,
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skip: 0,
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reverse: false)
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trace trEthSendSendingGetBlockHeaders, peer, header=num.toStr, reqLen
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var hdrResp: Option[blockHeadersObj]
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try:
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hdrResp = await peer.getBlockHeaders(hdrReq)
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except CatchableError as e:
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trace trSnapRecvError & "waiting for GetByteCodes reply", peer,
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error=e.msg
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return err(ComNetworkProblem)
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var hdrRespLen = 0
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if hdrResp.isSome:
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hdrRespLen = hdrResp.get.headers.len
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if hdrRespLen == 0:
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trace trEthRecvReceivedBlockHeaders, peer, reqLen, respose="n/a"
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return err(ComNoHeaderAvailable)
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if hdrRespLen == 1:
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let
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header = hdrResp.get.headers[0]
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blockNumber = header.blockNumber
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trace trEthRecvReceivedBlockHeaders, peer, hdrRespLen, blockNumber
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return ok(header)
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trace trEthRecvReceivedBlockHeaders, peer, reqLen, hdrRespLen
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return err(ComTooManyHeaders)
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proc getBlockHeader*(
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buddy: SnapBuddyRef;
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hash: Hash256;
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): Future[Result[BlockHeader,ComError]]
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{.async.} =
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## Get single block header
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let
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peer = buddy.peer
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reqLen = 1u
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hdrReq = BlocksRequest(
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startBlock: HashOrNum(
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isHash: true,
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hash: hash),
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maxResults: reqLen,
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skip: 0,
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reverse: false)
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trace trEthSendSendingGetBlockHeaders, peer,
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header=hash.data.toHex, reqLen
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var hdrResp: Option[blockHeadersObj]
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try:
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hdrResp = await peer.getBlockHeaders(hdrReq)
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except CatchableError as e:
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trace trSnapRecvError & "waiting for GetByteCodes reply", peer,
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error=e.msg
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return err(ComNetworkProblem)
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var hdrRespLen = 0
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if hdrResp.isSome:
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hdrRespLen = hdrResp.get.headers.len
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if hdrRespLen == 0:
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trace trEthRecvReceivedBlockHeaders, peer, reqLen, respose="n/a"
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return err(ComNoHeaderAvailable)
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if hdrRespLen == 1:
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let
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header = hdrResp.get.headers[0]
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blockNumber = header.blockNumber
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trace trEthRecvReceivedBlockHeaders, peer, hdrRespLen, blockNumber
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return ok(header)
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trace trEthRecvReceivedBlockHeaders, peer, reqLen, hdrRespLen
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return err(ComTooManyHeaders)
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# ------------------------------------------------------------------------------
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# End
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# ------------------------------------------------------------------------------
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