/// <summary>
/// 读取数据线程
/// </summary>
private void read()
{
using (FileStream fileStream = new FileStream(fileName, FileMode.Open, FileAccess.Read, FileShare.ReadWrite, (int)bufferSize, FileOptions.RandomAccess))
{
do
{
if (isDisposed == 0)
{
readWait.Wait();
}
ReadRequest head = readRequests.GetClear();
if (head == null)
{
return;
}
do
{
try
{
do
{
head = head.Read(this, fileStream);
}while (head != null);
break;
}
catch (Exception error)
{
log.add(LogType.Error, error);
}
head = head.Error();
}while (head != null);
}while (true);
}
}
/// <summary>
/// 添加数据
/// </summary>
/// <param name="buffer">数据</param>
/// <param name="onWrite">添加数据回调委托</param>
void IBlock.Append(ref AppendBuffer buffer, AutoCSer.Net.TcpServer.ServerCallback <ulong> onWrite)
{
if (isDisposed == 0)
{
ulong index = buffer.Index & Server.MaxIndex;
if (index == 0 || (long)index + (buffer.Buffer.Length + sizeof(int)) > fileLength)
{
if (writeRequests.IsPushHead(new WriteRequest(ref buffer, onWrite)))
{
writeWait.Set();
}
if (isDisposed != 0)
{
for (WriteRequest head = writeRequests.GetClear(); head != null; head = head.Error())
{
;
}
}
}
else
{
ReadRequest readRequest = new ReadRequest {
Index = (long)index, Size = buffer.Buffer.Length
};
readRequest.WriteRequest = new FileWriteRequest(ref buffer, onWrite, this);
if (readRequests.IsPushHead(readRequest))
{
readWait.Set();
}
if (isDisposed != 0)
{
for (ReadRequest head = readRequests.GetClear(); head != null; head = head.Error())
{
;
}
for (WriteRequest head = writeRequests.GetClear(); head != null; head = head.Error())
{
;
}
}
}
}
else
{
onWrite.Callback(0);
}
}