/// <summary>This stream class is unbuffered.</summary>
/// <remarks>
/// This stream class is unbuffered. Therefore this method will always
/// return 0 for streams connected to regular files. However, a
/// stream created from a Named Pipe this method will query the server using a
/// "peek named pipe" operation and return the number of available bytes
/// on the server.
/// </remarks>
/// <exception cref="System.IO.IOException"></exception>
public override int Available()
{
SmbNamedPipe pipe;
TransPeekNamedPipe req;
TransPeekNamedPipeResponse resp;
if (File.Type != SmbFile.TypeNamedPipe)
{
return(0);
}
try
{
pipe = (SmbNamedPipe)File;
File.Open(SmbFile.OExcl, pipe.PipeType & 0xFF0000, SmbFile.AttrNormal
, 0);
req = new TransPeekNamedPipe(File.Unc, File.Fid);
resp = new TransPeekNamedPipeResponse(pipe);
pipe.Send(req, resp);
if (resp.status == TransPeekNamedPipeResponse.StatusDisconnected || resp.status
== TransPeekNamedPipeResponse.StatusServerEndClosed)
{
File.Opened = false;
return(0);
}
return(resp.Available);
}
catch (SmbException se)
{
throw SeToIoe(se);
}
}
/// <summary>This stream class is unbuffered.</summary>
/// <remarks>
/// This stream class is unbuffered. Therefore this method will always
/// return 0 for streams connected to regular files. However, a
/// stream created from a Named Pipe this method will query the server using a
/// "peek named pipe" operation and return the number of available bytes
/// on the server.
/// </remarks>
/// <exception cref="System.IO.IOException"></exception>
public override int Available()
{
SmbNamedPipe pipe;
TransPeekNamedPipe req;
TransPeekNamedPipeResponse resp;
if (File.Type != SmbFile.TypeNamedPipe)
{
return 0;
}
try
{
pipe = (SmbNamedPipe)File;
File.Open(SmbFile.OExcl, pipe.PipeType & 0xFF0000, SmbFile.AttrNormal
, 0);
req = new TransPeekNamedPipe(File.Unc, File.Fid);
resp = new TransPeekNamedPipeResponse(pipe);
pipe.Send(req, resp);
if (resp.status == TransPeekNamedPipeResponse.StatusDisconnected || resp.status
== TransPeekNamedPipeResponse.StatusServerEndClosed)
{
File.Opened = false;
return 0;
}
return resp.Available;
}
catch (SmbException se)
{
throw SeToIoe(se);
}
}
