system_shared_type.cpp

Shared memory type example

 
#include "system/shared_type.h"
 
#include <iostream>
#include <string>
 
int main(int argc, char** argv)
{
    // Create or open a shared memory type
    CppCommon::SharedType<int> shared("shared_type_example");
    if (shared.owner())
        std::cout << "SharedType<int> created!" << std::endl;
    else
        std::cout << "SharedType<int> opened! Value = " << *shared << std::endl;
 
    // Show help message
    std::cout << "Please enter any integer number to put into shared memory type (several processes support). Enter '0' to exit..." << std::endl;
 
    // Perform text input
    std::string line;
    while (getline(std::cin, line))
    {
        int item = std::stoi(line);
 
        // Check for exit
        if (item == 0)
            break;
 
        // Show the old shared memory type content
        std::cout << "Old shared memory type value = " << *shared << std::endl;
 
        // Write new integer value into the shared memory type
        *shared = item;
 
        // Show the new shared memory type content
        std::cout << "New shared memory type value = " << *shared << std::endl;
    }
 
    return 0;
}