Stdin Handling

Detailed Description

Standard Input Handling.

Code to read from stdin

Example

#include <ola/base/Init.h>
#include <ola/io/SelectServer.h>
#include <ola/io/StdinHandler.h>
#include <iostream>

class ExampleStdinHandler {
 public:
  ExampleStdinHandler()
    : m_stdin_handler(&m_ss,
                      ola::NewCallback(this, &ExampleStdinHandler::Input)) {
  }

  void Run() { m_ss.Run(); }

 private:
  ola::io::SelectServer m_ss;
  ola::io::StdinHandler m_stdin_handler;

  void Input(int c);
};

void ExampleStdinHandler::Input(int c) {
  switch (c) {
    case 'q':
      m_ss.Terminate();
      break;
    default:
      std::cout << "Got " << static_cast<char>(c) << " - " << c << std::endl;
      break;
  }
}

int main(int argc, char* argv[]) {
  ola::AppInit(&argc, argv, "", "Example Stdin Handler");

  ExampleStdinHandler handler;
  handler.Run();
}

When ./stdin_handler is run, it will echo each key pressed except for q which will quit.

Collaboration diagram for Stdin Handling:

Files
file	StdinHandler.h
	The stdin handler.

Namespaces
	ola
	The namespace containing all OLA symbols.
	ola::io
	Classes for general I/O and event handling.

Classes
class	ola::io::StdinHandler

Typedefs
typedef ola::Callback1< void, int >	ola::io::StdinHandler::InputCallback

Functions
	ola::io::StdinHandler::StdinHandler (SelectServerInterface *ss, InputCallback *callback)
	Handle data from stdin. More...

Function Documentation

ola::io::StdinHandler::StdinHandler ( SelectServerInterface *  ss, InputCallback *  callback  )

explicit

Handle data from stdin.

Parameters

ss	The SelectServer to use
callback	the callback to run when we get new data on stdin