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Update downloader.go

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add hash and block TTL
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pureland 2015-06-07 14:24:35 +08:00
parent e822f440b0
commit 34bb40e3bd
1 changed files with 2 additions and 2 deletions
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4
eth/downloader/downloader.go
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@ -23,11 +23,11 @@ const (
MaxBlockFetch = 128 // Amount of blocks to be fetched per retrieval request MaxBlockFetch = 128 // Amount of blocks to be fetched per retrieval request
peerCountTimeout = 12 * time.Second // Amount of time it takes for the peer handler to ignore minDesiredPeerCount peerCountTimeout = 12 * time.Second // Amount of time it takes for the peer handler to ignore minDesiredPeerCount
hashTTL = 5 * time.Second // Time it takes for a hash request to time out hashTTL = 240 * time.Second // Time it takes for a hash request to time out
) )
var ( var (
blockSoftTTL = 3 * time.Second // Request completion threshold for increasing or decreasing a peer's bandwidth blockSoftTTL = 240 * time.Second // Request completion threshold for increasing or decreasing a peer's bandwidth
blockHardTTL = 3 * blockSoftTTL // Maximum time allowance before a block request is considered expired blockHardTTL = 3 * blockSoftTTL // Maximum time allowance before a block request is considered expired
crossCheckCycle = time.Second // Period after which to check for expired cross checks crossCheckCycle = time.Second // Period after which to check for expired cross checks
minDesiredPeerCount = 5 // Amount of peers desired to start syncing minDesiredPeerCount = 5 // Amount of peers desired to start syncing