void EndProcessRequest(IAsyncResult result)
{
#if DEBUG
int workerAvailable = threadPool.AvailableThreads;
int completionPortAvailable = threadPool.MaxThreads;
int activeRequests = completionPortAvailable - workerAvailable;
Debug.WriteLine(string.Format("EndProcessRequest: Pooled:{0} Id:{1} out of {2}/{3} ({4} Requests Active, {5} Requests Pending)", Thread.CurrentThread.IsThreadPoolThread, Thread.CurrentThread.ManagedThreadId, workerAvailable, completionPortAvailable, activeRequests, threadPool.RequestQueueLength));
#endif
BitCoinResult.End(result, this, "getwork");
}
new public static void End(IAsyncResult result, object owner, string operationId)
{
BitCoinResult asyncResult = result as BitCoinResult;
if (asyncResult == null)
{
throw new ArgumentException(
"Result passed represents an operation not supported " +
"by this framework.",
"result");
}
// Wait until operation has completed
AsyncResultNoResult.End(result, owner, operationId);
// Write the result to client (if above didn't throw)
if (asyncResult.m_result != null && asyncResult.m_context.Response.IsClientConnected)
{
try
{
var outgoingResponse = asyncResult.m_context.Response;
// write the response to stream
outgoingResponse.ContentEncoding = Encoding.UTF8;
outgoingResponse.ContentType = asyncResult.m_result.ContentType;
outgoingResponse.StatusCode = asyncResult.m_result.HttpStatusCode;
if (asyncResult.m_result.HttpStatusCode == 401)
{
outgoingResponse.AddHeader("WWW-Authenticate",
"BASIC Realm=TopBit API (http://api.topb.it)");
}
if (outgoingResponse.StatusCode == 200)
{
outgoingResponse.Write(asyncResult.m_result.ToJson());
}
outgoingResponse.End();
}
catch (Exception)
{
// socket connection from mining client is interrupted.
}
}
}
/// <remarks>
/// 以下设计将保证 bitcoin 网关处理尽可能多的请求
/// getwork:
/// 远程调用，使用异步处理
/// submitwork:
/// 当本地验证未通过则直接返回
/// 当本地验证通过时使用远程调用，由于不需要考虑结果，仍然可以立即返回
/// </remarks>
IAsyncResult BeginProcessRequest(object sender, EventArgs e, AsyncCallback cb, object extraData)
{
#if DEBUG
int workerAvailable = threadPool.AvailableThreads;
int completionPortAvailable = threadPool.MaxThreads;
int activeRequests = completionPortAvailable - workerAvailable;
Debug.WriteLine(string.Format("BeginProcessRequest: {0} {1} out of {2}/{3} ({4} Requests Active)", Thread.CurrentThread.IsThreadPoolThread, Thread.CurrentThread.ManagedThreadId, workerAvailable, completionPortAvailable, activeRequests));
//attach the debugger if query string contains 'break=yes'
BreakIfRequested();
#endif
HttpContext context = ((HttpApplication)sender).Context;
// prepare async context
var result = new BitCoinResult(cb, context, extraData, this, "getwork");
try
{
var message = Message.Parse(context.Request);
if (message != null && message.Method == "getwork")
{
// api.topb.it only deals 'getwork' request
result.Process(threadPool, message);
}
else
{
result.SetResult(UnknownMethod);
result.Complete(null, true);
}
}
catch (Exception error)
{
logger.Fatal("BeginProcessRequest - " + error.Message, error);
#if DEBUG
Debug.WriteLine(string.Format("Exception in BeginProcessRequest: {0}", error.Message));
#endif
result.SetResult(InternalError);
result.Complete(null, true);
}
// ok, return it
return(result);
}
