XrdCl::StreamSelector Struct Reference

Selects less loaded stream for read operation over multiple streams. More...

Collaboration diagram for XrdCl::StreamSelector:

Public Member Functions
	StreamSelector (uint16_t size)
void	AdjustQueues (uint16_t size)
void	MsgReceived (uint16_t substrm)
uint16_t	Select (const std::vector< bool > &connected)

Detailed Description

Selects less loaded stream for read operation over multiple streams.

Definition at line 139 of file XrdClXRootDTransport.cc.

Constructor & Destructor Documentation

StreamSelector()

XrdCl::StreamSelector::StreamSelector ( uint16_t size )

inline

Definition at line 141 of file XrdClXRootDTransport.cc.

      {
        //----------------------------------------------------------------------
        // Subtract one because we shouldn't take into account the control
        // stream.
        //----------------------------------------------------------------------
        strmqueues.resize( size - 1, 0 );
      }

Member Function Documentation

AdjustQueues()

void XrdCl::StreamSelector::AdjustQueues ( uint16_t size )

inline

Definition at line 153 of file XrdClXRootDTransport.cc.

      {
         strmqueues.resize( size - 1, 0);
      }

MsgReceived()

void XrdCl::StreamSelector::MsgReceived ( uint16_t substrm )

inline

Definition at line 186 of file XrdClXRootDTransport.cc.

      {
        if( substrm > 0 )
        --strmqueues[substrm - 1];
      }

Select()

uint16_t XrdCl::StreamSelector::Select ( const std::vector< bool > & connected )

inline

Definition at line 163 of file XrdClXRootDTransport.cc.

      {
        uint16_t ret    = 0;
        size_t   minval = std::numeric_limits<size_t>::max();
 
        for( uint16_t i = 0; i < connected.size() && i < strmqueues.size(); ++i )
        {
          if( !connected[i] ) continue;
 
          if( strmqueues[i] < minval )
          {
            ret = i;
            minval = strmqueues[i];
          }
        }
 
        ++strmqueues[ret];
        return ret + 1;
      }

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

• XrdClXRootDTransport.cc