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j-berman
4a2d6eb3da
When the request includes block_ids, the daemon uses find_blockchain_supplement to identify the highest block hash passed in block_ids that the daemon also knows about, and then serves subsequent blocks contiguous to that block. When block_ids_skip_exclusive is false (default current behavior), the daemon includes the highest block requested in the response, in addition to contiguous blocks after it. When block_ids_skip_exclusive is true (new param), the daemon serves blocks starting from the block 1 higher than the highest known block included in block_ids. Thus, the daemon skips the common block known to the client and daemon. Clients can make sure the daemon is serving expected contiguous blocks to its highest known block by checking the first block's prev_id included in the response, and making sure it is equivalent to the block the client already knows about that was included in block_ids. This avoids the daemon serving 1 extra block it does not need to serve to the client, since the client should already know about that block. bl