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Add timeout for headers sync

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At startup, we choose one peer to serve us the headers chain, until
our best header is close to caught up.  Disconnect this peer if more
than 15 minutes + 1ms/expected_header passes and our best header
is still more than 1 day away from current time.
This commit is contained in:
Suhas Daftuar
2017-05-08 15:05:22 -04:00
parent e2652002b6
commit 76f74811c4
2 changed files with 41 additions and 0 deletions
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4
src/net_processing.h
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@@ -17,6 +17,10 @@ static const int64_t ORPHAN_TX_EXPIRE_TIME = 20 * 60;
static const int64_t ORPHAN_TX_EXPIRE_INTERVAL = 5 * 60;
/** Default number of orphan+recently-replaced txn to keep around for block reconstruction */
static const unsigned int DEFAULT_BLOCK_RECONSTRUCTION_EXTRA_TXN = 100;
/** Headers download timeout expressed in microseconds
* Timeout = base + per_header * (expected number of headers) */
static constexpr int64_t HEADERS_DOWNLOAD_TIMEOUT_BASE = 15 * 60 * 1000000; // 15 minutes
static constexpr int64_t HEADERS_DOWNLOAD_TIMEOUT_PER_HEADER = 1000; // 1ms/header
/** Register with a network node to receive its signals */
void RegisterNodeSignals(CNodeSignals& nodeSignals);