/// <summary>
/// Asks the connected peer for the block of the given hash, and returns a Future representing the answer.
/// If you want the block right away and don't mind waiting for it, just call .get() on the result. Your thread
/// will block until the peer answers. You can also use the Future object to wait with a timeout, or just check
/// whether it's done later.
/// </summary>
/// <param name="blockHash">Hash of the block you were requesting.</param>
/// <exception cref="IOException"/>
public IAsyncResult BeginGetBlock(Sha256Hash blockHash, AsyncCallback callback, object state)
{
var getdata = new GetDataMessage(_params);
var inventoryItem = new InventoryItem(InventoryItem.ItemType.Block, blockHash);
getdata.AddItem(inventoryItem);
var future = new GetDataFuture <Block>(inventoryItem, callback, state);
// Add to the list of things we're waiting for. It's important this come before the network send to avoid
// race conditions.
lock (_pendingGetBlockFutures)
{
_pendingGetBlockFutures.Add(future);
}
_conn.WriteMessage(getdata);
return(future);
}
/// <summary>
/// Asks the connected peer for the block of the given hash, and returns a Future representing the answer.
/// If you want the block right away and don't mind waiting for it, just call .get() on the result. Your thread
/// will block until the peer answers. You can also use the Future object to wait with a timeout, or just check
/// whether it's done later.
/// </summary>
/// <param name="blockHash">Hash of the block you were requesting.</param>
/// <exception cref="System.IO.IOException" />
public GetDataFuture <Block> GetBlock(byte[] blockHash)
{
var getdata = new InventoryMessage(_params);
var inventoryItem = new InventoryItem(InventoryItem.ItemType.Block, blockHash);
getdata.AddItem(inventoryItem);
var future = new GetDataFuture <Block>(this, inventoryItem);
// Add to the list of things we're waiting for. It's important this come before the network send to avoid
// race conditions.
lock (_pendingGetBlockFutures)
{
_pendingGetBlockFutures.Add(future);
}
_conn.WriteMessage(getdata);
return(future);
}
/// <summary>
/// Asks the connected peer for the block of the given hash, and returns a Future representing the answer.
/// If you want the block right away and don't mind waiting for it, just call .get() on the result. Your thread
/// will block until the peer answers. You can also use the Future object to wait with a timeout, or just check
/// whether it's done later.
/// </summary>
/// <param name="blockHash">Hash of the block you were requesting.</param>
/// <exception cref="IOException"/>
public IAsyncResult BeginGetBlock(Sha256Hash blockHash, AsyncCallback callback, object state)
{
var getdata = new GetDataMessage(_params);
var inventoryItem = new InventoryItem(InventoryItem.ItemType.Block, blockHash);
getdata.AddItem(inventoryItem);
var future = new GetDataFuture<Block>(inventoryItem, callback, state);
// Add to the list of things we're waiting for. It's important this come before the network send to avoid
// race conditions.
lock (_pendingGetBlockFutures)
{
_pendingGetBlockFutures.Add(future);
}
_conn.WriteMessage(getdata);
return future;
}
