JNET::JSelectReader Class Reference

Wrapper class for select call. More...

#include <JSelectReader.hh>

Inheritance diagram for JNET::JSelectReader:

Public Member Functions
	JSelectReader ()
	Default constructor. More...
JFileDescriptorMask &	getReaderMask ()
	Get reader mask. More...
void	setReaderMask (const JAbstractFile &file)
	Set reader mask. More...
bool	hasReaderMask (const JAbstractFile &file) const
	Has reader file. More...
void	reset ()
	Reset. More...
bool	operator() (JTimeval timeout)
	Select call. More...
int	operator() (timeval *timeout=NULL)
	Select call. More...

Protected Attributes
JFileDescriptorMask	readerMask

Detailed Description

Wrapper class for select call.

Definition at line 32 of file JSelectReader.hh.

Constructor & Destructor Documentation

JSelectReader()

JNET::JSelectReader::JSelectReader ( )

inline

Default constructor.

Definition at line 37 of file JSelectReader.hh.

    {}

Member Function Documentation

getReaderMask()

JFileDescriptorMask& JNET::JSelectReader::getReaderMask ( )

inline

Get reader mask.

Returns

mask

Definition at line 46 of file JSelectReader.hh.

    {
      return readerMask;
    }

setReaderMask()

void JNET::JSelectReader::setReaderMask ( const JAbstractFile &  file )

inline

Set reader mask.

Parameters

file

file

Definition at line 57 of file JSelectReader.hh.

    {
      readerMask.set(file);
    }

hasReaderMask()

bool JNET::JSelectReader::hasReaderMask ( const JAbstractFile &  file ) const

inline

Has reader file.

Parameters

file

file

Returns

true if file set; else false

Definition at line 69 of file JSelectReader.hh.

    {
      return readerMask.has(file);
    }

reset()

void JNET::JSelectReader::reset ( )

inline

Reset.

Definition at line 78 of file JSelectReader.hh.

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

operator()() [1/2]

bool JNET::JSelectReader::operator() ( JTimeval  timeout )

inline

Select call.

Parameters

timeout

timeout

Returns

number of valid file descriptors

Definition at line 90 of file JSelectReader.hh.

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

operator()() [2/2]

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

inline

Select call.

Parameters

timeout

timeout

Returns

number of valid file descriptors

Definition at line 102 of file JSelectReader.hh.

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

Member Data Documentation

readerMask

JFileDescriptorMask JNET::JSelectReader::readerMask

protected

Definition at line 127 of file JSelectReader.hh.

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

• JSelectReader.hh