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Call getFilterHeaderCount async inside of nextFilterHeaderBatchRange while we are fetching our start height for fetching filters (#1327)

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Chris Stewart 2020-04-09 14:56:03 -05:00 • committed by GitHub
parent 8a079d25d7
commit bb347890c0
1 changed files with 5 additions and 2 deletions
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7
chain/src/main/scala/org/bitcoins/chain/blockchain/ChainHandler.scala
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@ -142,9 +142,10 @@ case class ChainHandler(
throw UnknownBlockHash(s"Unknown block hash ${prevStopHash}"))
} yield prevStopHeader.height + 1
}
val blockCountF = getBlockCount
for {
startHeight <- startHeightF
blockCount <- getBlockCount
blockCount <- blockCountF
stopHeight = if (startHeight - 1 + batchSize > blockCount) blockCount
else startHeight - 1 + batchSize
stopBlockOpt <- getHeadersAtHeight(stopHeight).map(_.headOption)
@ -162,6 +163,7 @@ case class ChainHandler(
override def nextFilterHeaderBatchRange(
prevStopHash: DoubleSha256DigestBE,
batchSize: Int): Future[Option[(Int, DoubleSha256Digest)]] = {
val filterHeaderCountF = getFilterHeaderCount
val startHeightF = if (prevStopHash == DoubleSha256DigestBE.empty) {
Future.successful(0)
} else {
@ -171,9 +173,10 @@ case class ChainHandler(
throw UnknownBlockHash(s"Unknown block hash ${prevStopHash}"))
} yield prevStopHeader.height + 1
}
for {
startHeight <- startHeightF
filterHeaderCount <- getFilterHeaderCount
filterHeaderCount <- filterHeaderCountF
stopHeight = if (startHeight - 1 + batchSize > filterHeaderCount)
filterHeaderCount
else startHeight - 1 + batchSize