private void OnWrite(IntPtr req)
{
var callback = _writeCallback;
_writeCallback = null;
callback.Invoke(this.FreeRequest(req), this.OnWrite, this.DataWrite);
}
private void OnRead(IntPtr req)
{
var callback = _readCallback;
_readCallback = null;
callback.Invoke(this.FreeReadRequest(req), this.OnRead, this.DataRead);
}
public void Write(byte[] data, int offset, int length, Action <UvDataArgs> callback = null)
{
if (this.Status != FileStatus.Open)
{
throw new InvalidOperationException("File handle must be open in order to write data");
}
IntPtr req = IntPtr.Zero;
try
{
req = this.CreateRequest(data, offset, length);
CheckError(Uvi.uv_fs_write(this.Loop.Handle, req, _file, new[] { this.Loop.Requests[req] }, 1, -1, _writeDelegate));
_writeCallback = new UvDataCallback(this, callback, data);
}
catch (Exception)
{
this.FreeRequest(req);
throw;
}
}
/// <summary>
/// Read from the file
/// </summary>
public void Read(uint length, Action <UvDataArgs> callback = null)
{
if (this.Status != FileStatus.Open)
{
throw new InvalidOperationException("File handle must be open in order to read data");
}
IntPtr req = IntPtr.Zero;
try
{
req = this.CreateRequest(length);
CheckError(Uvi.uv_fs_read(this.Loop.Handle, req, _file, new[] { this.Loop.Requests[req] }, 1, -1, _readDelegate));
_readCallback = new UvDataCallback(this, callback);
}
catch (Exception)
{
this.FreeRequest(req);
throw;
}
}
public void ReadStop()
{
CheckError(Uvi.uv_read_stop(this.Handle));
_isReading = false;
_readCallback = null;
}
public void ReadStart(Action <UvDataArgs> callback = null)
{
CheckError(Uvi.uv_read_start(this.Handle, _allocDelegate, _readDelegate));
_isReading = true;
_readCallback = new UvDataCallback(this, callback);
}