mahimahi/exception.hh at oldmaster · talalahmad/mahimahi

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/* -*-mode:c++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */

#ifndef EXCEPTION_HH

#define EXCEPTION_HH

#include <string>

#include <iostream>

#include <cstring>

class Exception

{

private:

std::string attempt_, error_;

public:

Exception( const std::string s_attempt, const std::string s_error )

: attempt_( s_attempt ), error_( s_error )

{}

Exception( const std::string s_attempt )

: attempt_( s_attempt ), error_( strerror( errno ) )

{}

void perror( void ) const

{

std::cerr << attempt_ << ": " << error_ << std::endl << std::flush;

}

const std::string & attempt( void ) const { return attempt_; }

};

/* error-checking wrapper for most syscalls */

inline int SystemCall( const std::string & s_attempt, const int return_value )

{

if ( return_value >= 0 ) {

return return_value;

}

throw Exception( s_attempt );

}

#endif