apps::towercalculator::KeyboardReader Class Reference

#include <KeyboardReader.h>

Inheritance diagram for apps::towercalculator::KeyboardReader:

Collaboration diagram for apps::towercalculator::KeyboardReader:

Public Member Functions
	KeyboardReader (const std::function< void(long)> &cb)

Protected Member Functions
void	readEvent () override
void	unobservedEvent () override

Protected Attributes
std::function< void(long)>	callBack

Additional Inherited Members
Private Member Functions inherited from core::eventreceiver::ReadEventReceiver
	ReadEventReceiver (const std::string &name, const utils::Timeval &timeout)
virtual void	readTimeout ()
Private Member Functions inherited from core::DescriptorEventReceiver
	DescriptorEventReceiver (const std::string &name, DescriptorEventPublisher &descriptorEventPublisher, const utils::Timeval &timeout=TIMEOUT::DISABLE)
int	getRegisteredFd () const
bool	isEnabled () const
bool	isSuspended () const
void	setTimeout (const utils::Timeval &timeout)
utils::Timeval	getTimeout (const utils::Timeval &currentTime) const
void	checkTimeout (const utils::Timeval &currentTime)
bool	enable (int fd)
void	disable ()
void	suspend ()
void	resume ()
Private Member Functions inherited from core::EventReceiver
	EventReceiver (const std::string &name)
	EventReceiver (EventReceiver &)=delete
	EventReceiver (EventReceiver &&)=delete
EventReceiver &	operator= (EventReceiver &)=delete
EventReceiver &	operator= (EventReceiver &&)=delete
virtual void	destruct ()
void	span ()
void	relax ()
const std::string &	getName () const
virtual	~EventReceiver ()=default
Static Private Member Functions inherited from core::EventReceiver
static void	atNextTick (const std::function< void(void)> &callBack)

Detailed Description

Definition at line 33 of file KeyboardReader.h.

Constructor & Destructor Documentation

KeyboardReader()

apps::towercalculator::KeyboardReader::KeyboardReader ( const std::function< void(long)> & cb )

explicit

Definition at line 36 of file KeyboardReader.cpp.

        : core::eventreceiver::ReadEventReceiver("KeyboardReader", 0)
        , callBack(cb) {
        if (!enable(STDIN_FILENO)) {
            std::cout << "KeyboardReader not activated";
        }
    }

References KeyboardReader().

Referenced by KeyboardReader().

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Member Function Documentation

readEvent()

void apps::towercalculator::KeyboardReader::readEvent ( )

overrideprotectedvirtual

Implements core::eventreceiver::ReadEventReceiver.

Definition at line 44 of file KeyboardReader.cpp.

                                   {
        std::cout << "ReadEvent" << std::endl;
        /*
            long value;
 
            std::cin >> long;
        */
 
        char buffer[256];
        const ssize_t ret = read(STDIN_FILENO, buffer, 256);
 
        if (ret > 0) {
            buffer[ret] = 0;
            try {
                long value = 0;
                value = std::stol(buffer);
 
                std::cout << "Value = " << value << std::endl;
 
                callBack(value);
            } catch (std::invalid_argument& e) {
                std::cout << e.what() << ": "
                          << "no conversion possible: input = " << buffer << std::endl;
            }
        }
    }

unobservedEvent()

void apps::towercalculator::KeyboardReader::unobservedEvent ( )

overrideprotectedvirtual

Implements core::Observer.

Definition at line 71 of file KeyboardReader.cpp.

                                         {
        //    delete this; // do not delete
    }

Member Data Documentation

callBack

std::function<void(long)> apps::towercalculator::KeyboardReader::callBack

protected

Definition at line 41 of file KeyboardReader.h.

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

• apps/towercalculator/KeyboardReader.h
• apps/towercalculator/KeyboardReader.cpp