console.hpp

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/*****************************************************************************
** Ifdefs
*****************************************************************************/

#ifndef ECL_DEVICES_CONSOLE_HPP_
#define ECL_DEVICES_CONSOLE_HPP_

/*****************************************************************************
** Includes
*****************************************************************************/

#include "detail/character_buffer.hpp"
#include "traits.hpp"
#include <ecl/errors/handlers.hpp>
#include <ecl/exceptions/standard_exception.hpp>
#include "macros.hpp"

/*****************************************************************************
** Namespaces
*****************************************************************************/

namespace ecl {

/*****************************************************************************
** Interface [OConsole]
*****************************************************************************/

class ecl_devices_PUBLIC OConsole {
public:
        OConsole() : error_handler(NoError) {}
        virtual ~OConsole() {}

        /*********************
        ** Output Device API
        **********************/
        bool open() { return true; }

        long write(const char &c) ecl_assert_throw_decl(StandardException);
        long write(const char* s, unsigned long n) ecl_assert_throw_decl(StandardException);
        void flush() ecl_assert_throw_decl(StandardException);

        const Error& error() const { return error_handler; }
private:
        devices::CharStringBuffer buffer;
        Error error_handler;
};

/*****************************************************************************
** Interface [EConsole]
*****************************************************************************/

class ecl_devices_PUBLIC EConsole {
public:
        EConsole() : error_handler(NoError) {}
        virtual ~EConsole() {}

        /*********************
        ** Output Device API
        **********************/
        bool open() { return true; }

        long write(const char &c) ecl_assert_throw_decl(StandardException);
        long write(const char* s, unsigned long n) ecl_assert_throw_decl(StandardException);
        void flush() ecl_assert_throw_decl(StandardException);

        const Error& error() const { return error_handler; }

private:
        devices::CharStringBuffer buffer;
        Error error_handler;
};

/*****************************************************************************
** Interface [IConsole]
*****************************************************************************/

class ecl_devices_PUBLIC IConsole {
public:
        IConsole() : error_handler(NoError) {}
        virtual ~IConsole() {}
        /*********************
        ** Input Device API
        **********************/
        bool open() { return true; }
    long read(char &c) ecl_assert_throw_decl(StandardException);
    long read(char *s, const unsigned long &n) ecl_assert_throw_decl(StandardException);

//    long remaining() {
//        long pos = ftell(stdin); // get current position marker.
//        fseek(stdin,0,SEEK_END); // move pointer to the end of the file.
//        long size = ftell(stdin);
//        fseek(stdin,pos,SEEK_SET);
//
//        return size;
//    }
        const Error& error() const { return error_handler; }
private:
        Error error_handler;
};


/*****************************************************************************
** Traits [Console]
*****************************************************************************/
template <>
class is_source<IConsole> : public True {

};

template <>
class is_sink<OConsole> : public True {};

template <>
class is_sink<EConsole> : public True {};

} // namespace ecl

#endif /* ECL_DEVICES_CONSOLE_HPP_ */