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Per-peer block download tracking and stalled download detection.

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Keep track of which block is being requested (and to be requested) from
each peer, and limit the number of blocks in-flight per peer. In addition,
detect stalled downloads, and disconnect if they persist for too long.

This means blocks are never requested twice, and should eliminate duplicate
downloads during synchronization.
This commit is contained in:
Pieter Wuille
2014-01-10 13:23:26 +01:00
parent 95e66247eb
commit f59d8f0b64
4 changed files with 131 additions and 29 deletions
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src/test/DoS_tests.cpp
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@@ -21,7 +21,6 @@
// Tests this internal-to-main.cpp method:
extern bool AddOrphanTx(const CTransaction& tx);
extern unsigned int LimitOrphanTxSize(unsigned int nMaxOrphans);
extern void Misbehaving(NodeId nodeid, int howmuch);
extern std::map<uint256, CTransaction> mapOrphanTransactions;
extern std::map<uint256, std::set<uint256> > mapOrphanTransactionsByPrev;