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// ============================================================================
//
// = CONTEXT
// TANGO Project - Keithley Electrometer Support Library
//
// = FILENAME
// CommunicationLink.h
//
// = AUTHOR
// X. Elattaoui
//
//
// Revision 1.1 2007/07/09 13:20:35 stephle
// initial import
//
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//
// ============================================================================
#ifndef _COMMUNICATION_LINK_H_
#define _COMMUNICATION_LINK_H_
#include <string>
// ============================================================================
// DEPENDENCIES
// ============================================================================
/**
* \addtogroup Communication Management
* @{
*/
/**
* \brief Abstract class to manage a specific communication bus
*
* \author Xavier Elattaoui
* \date 11-2006
*/
class CommunicationLink
{
public :
/**
* Initialization.
*/
CommunicationLink (std::string& communication_link_name);
/**
* Release resources.
*/
virtual ~CommunicationLink (void);
/**
* \brief Send command (data) as string to hardware.
*
* \throws Tango::DevFailed
*/
virtual void write(std::string) = 0;
/**
* \brief Gets hardware response as string.
*
* \throws Tango::DevFailed
*/
virtual std::string read(void) = 0;
/**
* \brief Performs a write read operation as string.
*
* \throws Tango::DevFailed
*/
virtual std::string write_read(std::string cmd_to_send) = 0;
/**
* \brief Returns the Gpib SRQ line state : used here to know if Keithley
* device is ready after an integration cycle.
*
* \throws Tango::DevFailed
*/
virtual bool isSRQLineUp(void)=0;