/// <summary>
/// leader节点分发区块
/// </summary>
/// <param name="request"></param>
/// <returns></returns>
public async Task <HandOutResponse> BlockHandOut(HandOutRequest request)
{
var response = new HandOutResponse();
//获取所有的节点
var peers = _configProviders.GetAllPeer();
//获取需求远程请求服务的节点
var notself = peers.Where(p => p.Id != CurrentState.Id).ToList();
//如果没有其他节点 本地提交区块 则返回结果
if (notself.Count() == 0)
{
await _blockDataManager.PutOnChainBlockAsync(request.Block);
response.Success = true;
return(response);
}
//分发区块
List <Task <HandOutResponse> > taskList = new List <Task <HandOutResponse> >();
var handOutRequest = new HandOutRequest
{
Block = request.Block,
Type = HandOutType.CheckSave,
ChannelId = request.ChannelId
};
foreach (var item in notself)
{
taskList.Add(item.BlockHandOut(handOutRequest));
}
var rightcount = 1;
var badcount = 0;
//区块分发的校验成功的数量是否大于二分之一
var checkback = false;
while (true)
{
for (var i = 0; i < taskList.Count; i++)
{
if (taskList[i].IsCompleted)
{
var rs = await taskList[i];
taskList.RemoveAt(i);
i--;
if (rs.Success)
{
rightcount++;
//如果投票数量大于一半
//这里获取的peer不包括本节点
if (rightcount >= ((peers.Count / 2) + 1))
{
checkback = true;
break;
}
}
else
{
badcount++;
if (badcount >= ((peers.Count / 2) + 1))
{
checkback = false;
break;
}
}
}
}
if (taskList.Count == 0)
{
break;
}
System.Threading.Thread.Sleep(10);
}
//如过校验区块成功
if (checkback)
{
//本地保存区块
//通知节点本地保存区块
var commitHandOutRequest = new HandOutRequest
{
Block = request.Block,
ChannelId = _node.GetChannelId(),
Type = HandOutType.Commit
};
foreach (var item in notself)
{
taskList.Add(item.BlockHandOut(commitHandOutRequest));
}
//返回
var putonRS = await _blockDataManager.PutOnChainBlockAsync(request.Block);
if (putonRS)
{
response.Success = true;
response.Message = "block save successful";
}
else
{
response.Success = false;
response.Message = "上链失败";
}
return(response);
}
else
{
response.Success = false;
response.Message = "follower check block err";
return(response);
}
}