77 lines
2.4 KiB
Nim
77 lines
2.4 KiB
Nim
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# 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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chronicles,
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chronos,
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eth/[common, p2p],
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../sync_desc,
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../misc/sync_ctrl,
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./worker_desc,
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./worker/com/[com_error, get_block_header]
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logScope:
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topics = "snap-ctrl"
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# ------------------------------------------------------------------------------
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# Public functions
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# ------------------------------------------------------------------------------
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proc updateBeaconHeaderFromFile*(
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buddy: SnapBuddyRef; # Worker peer
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) {.async.} =
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## This function updates the beacon header cache by import from the file name
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## argument `fileName`. The first line of the contents of the file looks like
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## * `0x<hex-number>` -- hash of block header
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## * `<decimal-number>` -- block number
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## This function is typically used for testing and debugging.
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let
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ctx = buddy.ctx
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hashOrNum = block:
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let rc = ctx.exCtrlFile.syncCtrlHashOrBlockNumFromFile
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if rc.isErr:
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return
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rc.value
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peer = buddy.peer
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var
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rc = Result[BlockHeader,ComError].err(ComError(0))
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isHash = hashOrNum.isHash # so that the value can be logged
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# Parse value dump and fetch a header from the peer (if any)
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try:
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if isHash:
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let hash = hashOrNum.hash
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trace "External beacon info", peer, hash
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if hash != ctx.pool.beaconHeader.hash:
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rc = await buddy.getBlockHeader(hash)
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else:
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let num = hashOrNum.number
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trace "External beacon info", peer, num
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if ctx.pool.beaconHeader.blockNumber < num:
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rc = await buddy.getBlockHeader(num)
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except CatchableError as e:
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let
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name {.used.} = $e.name
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msg {.used.} = e.msg
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trace "Exception while parsing beacon info", peer, isHash, name, msg
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if rc.isOk:
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if ctx.pool.beaconHeader.blockNumber < rc.value.blockNumber:
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ctx.pool.beaconHeader = rc.value
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# ------------------------------------------------------------------------------
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# End
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# ------------------------------------------------------------------------------
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