public unsafe void Execute(FileReadResult target)
{
target.Pin(buffer.Data);
Overlapped overlapped = new Overlapped
{
AsyncResult = target,
OffsetLow = (int)(target.Position & 0xffffffff),
OffsetHigh = (int)((target.Position >> 32) & 0xffffffff)
};
NativeOverlapped *native = overlapped.UnsafePack(null, null);
IntPtr array = Marshal.UnsafeAddrOfPinnedArrayElement(buffer.Data, buffer.Offset);
int read;
uint result = FileInterop.ReadFile(handle, array, buffer.Count, out read, native);
uint error = FileInterop.GetLastError();
if (result == 0 && error != 997)
{
target.Fail(error);
}
if (result == 1)
{
target.Complete(native, read);
}
}
public void Read(long position, FileBuffer buffer, FileReadCallback callback)
{
FileReadRoutine routine = new FileReadRoutine(handle, buffer);
FileReadResult result = new FileReadResult
{
Handle = handle,
File = this,
Position = position,
Buffer = buffer,
OnRead = callback
};
routine.Execute(result);
}
