/// <summary>
/// Initializes a new instance of the <see cref="PutBlockListItem"/> class.
/// </summary>
/// <param name="id">The block ID.</param>
/// <param name="searchMode">One of the enumeration values that specifies in which block lists to search for the block.</param>
public PutBlockListItem(string id, BlockSearchMode searchMode)
{
this.Id = id;
this.SearchMode = searchMode;
}
/// <summary>
/// Initializes a new instance of the <see cref="PutBlockListItem"/> class.
/// </summary>
/// <param name="id">The block ID.</param>
/// <param name="searchMode">One of the enumeration values that specifies in which block lists to search for the block.</param>
public PutBlockListItem(string id, BlockSearchMode searchMode)
{
this.Id = id;
this.SearchMode = searchMode;
}
// Static function used by the getMiningBlock API call
public static Block getMiningBlock(BlockSearchMode searchMode)
{
Block candidate_block = null;
lock (activePoolBlockLock)
{
if (activePoolBlock != null)
{
return(activePoolBlock);
}
}
List <Block> blockList = null;
int block_offset = 1;
if (Node.blockChain.Count >= (long)ConsensusConfig.getRedactedWindowSize())
{
block_offset = 1000;
}
if (searchMode == BlockSearchMode.lowestDifficulty)
{
blockList = Node.blockChain.getBlocks(block_offset, (int)Node.blockChain.Count - block_offset).Where(x => x.powField == null).OrderBy(x => x.difficulty).ToList();
}
else if (searchMode == BlockSearchMode.randomLowestDifficulty)
{
Random rnd = new Random();
blockList = Node.blockChain.getBlocks(block_offset, (int)Node.blockChain.Count - block_offset).Where(x => x.powField == null).OrderBy(x => x.difficulty).Skip(rnd.Next(200)).ToList();
}
else if (searchMode == BlockSearchMode.latestBlock)
{
blockList = Node.blockChain.getBlocks(block_offset, (int)Node.blockChain.Count - block_offset).Where(x => x.powField == null).OrderByDescending(x => x.blockNum).ToList();
}
else if (searchMode == BlockSearchMode.random)
{
Random rnd = new Random();
blockList = Node.blockChain.getBlocks(block_offset, (int)Node.blockChain.Count - block_offset).Where(x => x.powField == null).OrderBy(x => rnd.Next()).ToList();
}
// Check if the block list exists
if (blockList == null)
{
Logging.error("No block list found while searching.");
return(null);
}
// Go through each block in the list
foreach (Block block in blockList)
{
if (block.powField == null)
{
ulong solved = 0;
lock (solvedBlocks)
{
solved = solvedBlocks.Find(x => x == block.blockNum);
}
// Check if this block is in the solved list
if (solved > 0)
{
// Do nothing at this point
}
else
{
// Block is not solved, select it
candidate_block = block;
if (searchMode == BlockSearchMode.random || searchMode == BlockSearchMode.randomLowestDifficulty)
{
lock (activePoolBlockLock)
{
activePoolBlock = candidate_block;
}
}
break;
}
}
}
return(candidate_block);
}
// Returns an empty PoW block based on the search algorithm provided as a parameter
private JsonResponse onGetMiningBlock(Dictionary <string, object> parameters)
{
if (!parameters.ContainsKey("algo"))
{
JsonError error = new JsonError {
code = (int)RPCErrorCode.RPC_INVALID_PARAMETER, message = "Parameter 'algo' is missing"
};
return(new JsonResponse {
result = null, error = error
});
}
int algo = int.Parse((string)parameters["algo"]);
BlockSearchMode searchMode = BlockSearchMode.randomLowestDifficulty;
if (algo == (int)BlockSearchMode.lowestDifficulty)
{
searchMode = BlockSearchMode.lowestDifficulty;
}
else if (algo == (int)BlockSearchMode.randomLowestDifficulty)
{
searchMode = BlockSearchMode.randomLowestDifficulty;
}
else if (algo == (int)BlockSearchMode.latestBlock)
{
searchMode = BlockSearchMode.latestBlock;
}
else if (algo == (int)BlockSearchMode.random)
{
searchMode = BlockSearchMode.random;
}
else
{
return(new JsonResponse {
result = null, error = new JsonError()
{
code = (int)RPCErrorCode.RPC_INVALID_PARAMS, message = "Invalid algorithm was specified"
}
});
}
Block block = Miner.getMiningBlock(searchMode);
if (block == null)
{
return(new JsonResponse {
result = null, error = new JsonError()
{
code = (int)RPCErrorCode.RPC_INTERNAL_ERROR, message = "Cannot retrieve mining block"
}
});
}
byte[] solver_address = Node.walletStorage.getPrimaryAddress();
Dictionary <string, Object> resultArray = new Dictionary <string, Object>
{
{ "num", block.blockNum }, // Block number
{ "ver", block.version }, // Block version
{ "dif", block.difficulty }, // Block difficulty
{ "chk", block.blockChecksum }, // Block checksum
{ "adr", solver_address } // Solver address
};
return(new JsonResponse {
result = resultArray, error = null
});
}
public PutBlockListItem(string id, BlockSearchMode searchMode)
{
throw new System.NotImplementedException();
}
