reorgs, fetch batching (parallel fetch), orphans

include/nets/fetch_scheduler.h

@@ -0,0 +1,10 @@
+#ifndef FETCH_SCHEDULER_H
+#define FETCH_SCHEDULER_H
+
+#include <stdint.h>
+
+// Compute penalty in blocks for a delayed/heavy reorg reported by a peer.
+// Returns the number of penalty blocks to subtract from the peer's advertised work.
+uint64_t FetchScheduler_ComputeReorgPenaltyBlocks(uint64_t delayBlocks);
+
+#endif