JNET::JSelectWriter Class Reference

Wrapper class for select call. More...

#include <JSelectWriter.hh>

Inheritance diagram for JNET::JSelectWriter:

Public Member Functions
	JSelectWriter ()
	Default constructor.
JFileDescriptorMask &	getWriterMask ()
	Get writer mask.
void	setWriterMask (const JAbstractFile &file)
	Set writer mask.
bool	hasWriterMask (const JAbstractFile &file) const
	Has writer file.
void	reset ()
	Reset.
int	operator() (JTimeval timeout)
	Select call.
int	operator() (timeval *timeout=NULL)
	Select call.

Protected Attributes
JFileDescriptorMask	writerMask

Detailed Description

Wrapper class for select call.

Definition at line 32 of file JSelectWriter.hh.

Constructor & Destructor Documentation

JSelectWriter()

JNET::JSelectWriter::JSelectWriter ( )

inline

Default constructor.

Definition at line 37 of file JSelectWriter.hh.

    {}

Member Function Documentation

getWriterMask()

JFileDescriptorMask & JNET::JSelectWriter::getWriterMask ( )

inline

Get writer mask.

Returns

mask

Definition at line 46 of file JSelectWriter.hh.

    {
      return writerMask;
    }

setWriterMask()

void JNET::JSelectWriter::setWriterMask ( const JAbstractFile & file )

inline

Set writer mask.

Parameters

file

file

Definition at line 57 of file JSelectWriter.hh.

    {
      writerMask.set(file);
    }

hasWriterMask()

bool JNET::JSelectWriter::hasWriterMask ( const JAbstractFile & file ) const

inline

Has writer file.

Parameters

file

file

Returns

true if file set; else false

Definition at line 69 of file JSelectWriter.hh.

    {
      return writerMask.has(file);
    }

reset()

void JNET::JSelectWriter::reset ( )

inline

Reset.

Definition at line 78 of file JSelectWriter.hh.

    {
      writerMask.reset(true);   // hard reset
    }

operator()() [1/2]

int JNET::JSelectWriter::operator() ( JTimeval timeout )

inline

Select call.

Parameters

timeout

timeout

Returns

number of valid file descriptors

Definition at line 90 of file JSelectWriter.hh.

    {
      return this->operator()(&timeout);
    }

operator()() [2/2]

int JNET::JSelectWriter::operator() ( timeval * timeout = NULL )

inline

Select call.

Parameters

timeout

timeout

Returns

number of valid file descriptors

Definition at line 102 of file JSelectWriter.hh.

    {
      int nfds = writerMask.getNumberOfFileDescriptors();
 
      nfds += 1;
      nfds  = ::select(nfds, NULL, &writerMask, NULL, timeout);
 
      if (nfds != 0) {
 
        if (nfds < 0) {
          if (errno != EINTR) {
            THROW(JSelectException, "JSelectWriter(..) failed.");
          }
        }
 
      } else {
 
        writerMask.reset(false);    // soft reset
      }
 
      return nfds;
    }

Member Data Documentation

writerMask

JFileDescriptorMask JNET::JSelectWriter::writerMask

protected

Definition at line 127 of file JSelectWriter.hh.

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The documentation for this class was generated from the following file:

• JSelectWriter.hh