private unsafe void read(fastCSharp.code.cSharp.tcpBase.subByteArrayEvent buffer, Func <fastCSharp.net.returnValue <fastCSharp.code.cSharp.tcpBase.subByteArrayEvent>, bool> onReturn)
{
fileBlockStream fileStream = this.fileStream;
subArray <byte> data = buffer.Buffer;
if (fileStream != null && data.length == sizeof(fileBlockStream.index))
{
fileBlockStream.index index;
fixed(byte *bufferFixed = buffer.Buffer.array) index = *(fileBlockStream.index *)bufferFixed;
fileStream.Read(onReturn, ref index);
}
else
{
onReturn(default(fastCSharp.code.cSharp.tcpBase.subByteArrayEvent));
}
}
public void Wait()
{
WaitFileStream.wait(this);
WaitFileStream = null;
}
/// <summary>
/// 文件分块服务
/// </summary>
/// <param name="fileName">文件全名</param>
public fileBlockServer(string fileName)
{
fileStream = new fileBlockStream(fileName);
}
/// <summary>
/// 开始读取文件
/// </summary>
public unsafe void Read()
{
do
{
int readSize = index.Size + sizeof(int);
try
{
if (FileStream.isDisposed == 0)
{
buffer = (memoryPool = memoryPool.GetOrCreate(readSize)).Get();
FileStream fileReader = FileStream.fileReader;
long offset = fileReader.Position - index.Index;
if (offset >= 0 || -offset < index.Index)
{
fileReader.Seek(offset, SeekOrigin.Current);
}
else
{
fileReader.Seek(index.Index, SeekOrigin.Begin);
}
if (fileReader.Read(buffer, 0, readSize) == readSize)
{
fixed(byte *bufferFixed = buffer)
{
if (*(int *)bufferFixed == index.Size)
{
readSize = index.Size;
}
else
{
log.Default.Add(FileStream.FileName + " index[" + index.Index.toString() + "] size[" + (*(int *)bufferFixed).toString() + "]<>" + index.Size.toString(), new System.Diagnostics.StackFrame(), false);
}
}
}
else
{
readSize = 0;
}
}
}
catch (Exception error)
{
log.Default.Add(error, null, false);
}
Func <fastCSharp.net.returnValue <fastCSharp.code.cSharp.tcpBase.subByteArrayEvent>, bool> onReaded = this.onReaded;
if (readSize == index.Size)
{
if (onReaded(new fastCSharp.code.cSharp.tcpBase.subByteArrayEvent {
Buffer = subArray <byte> .Unsafe(buffer, sizeof(int), index.Size), SerializeEvent = memoryPool
}))
{
buffer = null;
}
else
{
memoryPool.Push(ref buffer);
}
}
else
{
onReaded(default(fastCSharp.code.cSharp.tcpBase.subByteArrayEvent));
if (memoryPool != null)
{
memoryPool.Push(ref buffer);
}
}
reader next = FileStream.next(this);
if (next == null)
{
FileStream = null;
onReaded = null;
memoryPool = null;
typePool <reader> .PushNotNull(this);
return;
}
onReaded = next.onReaded;
index = next.index;
next.onReaded = null;
typePool <reader> .PushNotNull(next);
}while (true);
}
